CN105758255B

CN105758255B - Artillery barrel bore Linearity surveying equipment

Info

Publication number: CN105758255B
Application number: CN201510523826.0A
Authority: CN
Inventors: 刘浏; 范真
Original assignee: Jiangsu University of Technology
Current assignee: Jiangsu University of Technology
Priority date: 2015-08-24
Filing date: 2015-08-24
Publication date: 2017-09-29
Anticipated expiration: 2035-08-24
Also published as: CN105758255A

Abstract

A kind of artillery barrel bore Linearity surveying equipment, including detection means and target；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, support is provided with main transverse axis, connecting rod is fixed with main transverse axis, a main observation device is fixed with connecting rod one end, a main observation device is a telescope, and its collimation axis is referred to as a subjective survey line, pedestal is provided with the connecting rod other end, pedestal is provided with secondary transverse axis, and a secondary observation device is fixed with secondary transverse axis, and a subjective survey line and a secondary line of observation are in same vertical guide；The target has main body, and the bottom surface of main body, which is provided with three support bars being in triangular distribution, the rod end of every support bar, is fixed with spherical contact, and the top surface of main body is provided with level crossing, and level crossing is provided with three specific identification points；In use, the spherical contact on three support bars of target is against on artillery barrel bore wall.Present invention measurement is accurate, simple in construction, easy to operate.

Description

Artillery barrel bore Linearity surveying equipment

Technical field

The present invention relates to artillery barrel bore Linearity surveying equipment.

Background technology

Because processing, gravity, the reason such as expand with heat and contract with cold, the axis of gun barrel is not ideal line, there is bending.It is light then Artillery shooting precision is influenceed, heavy then obstruction shell motion produces bombing bore.The index of cannon barrel axis degree of crook is evaluated, i.e., The linearity of gun barrel.

Existing gun barrel verticality measuring method mainly includes following several classes：

（1）The conventional detection method of army：It is that standard straight degree footpath rule are put into gun barrel, can be closed by person Lattice, otherwise to be unqualified.According to GJB4537-2002 regulation, once being determined with the method, degree of crook is exceeded, and cannon is to give To scrap.

This method is disadvantageous in that：Qualitative detection can only be carried out.See Cheng Shi, Huangping,《Gun barrel Linearity surveying Method and measuring cell selection》,《Defense technology basis》2007（2）, p53.

（2）The detection method of target range measuring station：It is that centering ring center is measured with measuring telescope in gun barrel difference Bias of the position to reference coordinate axle.

This method is disadvantageous in that：Easily influenceed by subjective judgement, and troublesome poeration, measurement accuracy is relatively low, effect Rate is relatively low.See Sun Jihong, Zhang Wenjie, Yang Qingwen,《The development of the development of gun barrel flexibility detector》,《Computer measurement With control》2006,14（6）p814.

（3）Measured using sensor arrays such as laser, PSD/CCD.

Such method is disadvantageous in that：The optical target of some use fixed diameters embodies artillery barrel bore section circle The heart, this does not obviously meet actual conditions；The center in each section is determined the need for having with three-jaw or other self-centering units, depending on Concentric mechanism structure is more complicated, especially when gun barrel bore is less than normal or bigger than normal, to centering machine process and assemble precision It is required that higher；It is required that after gun barrel built-in function centering machine is moved to certain axial location, then adjusts centering machine and be allowed to Contact and be not easy to accurately embodying in the cross section center of circle, operation with the axial location cross section, be easily caused larger survey Measure error；It is crucial that, laser that these measuring methods are emphasized, the installation site of sensor are it cannot be guaranteed that real embodiment Axis etc..See Zhang Liancun, Zhang Guoyu, pay elegant China etc.,《φ 25mm gun barrel linearity photoelectric measurement methods》,《Optics essence Close engineering》2004,12（5）, p485.See Sun Jihong, Zhang Wenjie, Yang Qingwen,《The development of gun barrel flexibility detector is ground System》,《Computer measurement and control》2006,14（6）p814.See white Baoxing, Ma Hong,《The lossless inspection of artillery barrel bore linearity Examining system》,《Changchun University of Science and Technology's journal》2002,25（2）, p37.Jian Mayong armies, quadriporticus are good for,《Artillery barrel bore linearity Automatic checkout system》,《Instrumental technique》2002（1）, p11.See Yang Huiyong, Zhang Peilin, Yan Pengcheng etc.,《Gun barrel flexibility Detection method research》,《Weaponry is automated》2008,27（9）, p19.See Chen Hongjun, Hu Chaogen, Liu Jianjun,《Gun barrel Linearity surveying and judging service life》,《Marine electronic engineering》2010,30（3）, p171.

Total powerstation is using extremely wide instrument of surveying and mapping.Total powerstation overall structure is divided into two large divisions：Pedestal and alidade.According to The telescope in quasi- portion, can in the horizontal plane with 360 are carried out in vertical plane⁰Rotation, is easy to sight target.Pedestal is used for instrument Leveling and the connection of tripod.The cooperative target of total powerstation is most commonly seen with prism.Wherein, prism is typically by pedestal and three pin Frame connection is installed, and single prism is often installed with centering rod and support.Refer to Li Zeqiu chief editors, publishing house of Wuhan University of Technology 2012 July publishes it《Total station survey technology》, 2.1 sections, p14-p15.

Total powerstation can carry out ranging and angle measurement simultaneously in survey station point to certain target point, obtain apart from S, horizontal angle γ, hang down Tri- master datas of right angle α.Rangefinder

During measurement, in survey station point, total powerstation centering leveling, in target point, prism centering leveling.When telescope sights target When, the horizontal limb degree and vertical circle of total powerstation provide horizontal angle and vertical angle of the target point with respect to survey station point respectively.Li Ze Ball is edited, and publishing house of Wuhan University of Technology publishes it in July, 2012《Total station survey technology》, 1.2 save, and p7-p9 describes volume Three kinds of scales such as code scale, grating circle, dynamic scale.

Total powerstation built-in infrared generator and receiver in telescope, can launch and coaxial infrared of telescope optic axis Light.If non-prism measures also built-in laser in the total powerstation of function, telescope, it can launch coaxial with telescope optic axis Red color visible laser.By measuring two-way time of the light wave on testing distance, you can obtain tested distance.See that what protects happiness master Compile, the Yellow River water conservancy publishing house in August, 2005 publishes it《Total station survey technology》p23、p27.

He Baoxi is edited, and the Yellow River water conservancy publishing house in August, 2005 publishes it《Total station survey technology》Chapter 2, second section, Describe the range measurement principle of current total powerstation, mainly impulse method, ranging phase method, be required for corresponding complicated Department of Electronics System.Impulse method ranging, directly determines the time for the round tested distance of pulse that rangefinder is sent.It is military according to Ye Xiaoming, Ling Mozhu Chinese university press publishes it in March, 2004《The total powerstation errors of principles》P8, even if the clock frequency for timing has atomic small Error, also result in very big measurement error.Such as clock frequency is 100MHz, even if having ± 1Hz frequency error, ranging Error is also up to ± 1.5m.So impulse method measurement accuracy is low, it is mainly used in long-range low precision measure.Ranging phase method, its Principle is that the phase place change produced is come and gone on testing distance come the indirect determination propagation time by measuring continuous modulated signal, So as to try to achieve propagation distance.Ranging phase method, is related to the control and computing of complexity, such as surveys chi conversion and control, light path converting Control, dim light is automatically controlled, and surveys phase rhythm（SECO）, phase distance transform, coarse-fine chi is apart from Linking operation etc.（See leaf Know bright, Ling Mozhu, publishing house of Wuhan University publishes it in March, 2004《The total powerstation errors of principles》p15）.The electronic system of measurement It is complicated more than impulse method.Thus many problems can be caused.Ye Xiaoming, Ling Mozhu, publishing house of Wuhan University publish it in March, 2004 《The total powerstation errors of principles》The chapters of p42 the 3rd are analyzed, such as the cycle misses caused by the same frequency photoelectricity in circuit harasses signal Difference, inner quartz crystal oscillator is affected by temperature caused error.Li Guangyun, Li Zongchun are edited, Mapping Press 2011 1 Moon publication《Industrial measuring system principle and application》P134, caused by also referring to that actual range frequency and design frequency are inconsistent Range error problem.

Have a problem most important to range accuracy, no matter pulse ranging or phase ranging, its range accuracy all takes The accurate measurement of the light velocity certainly in air.And in actual measurement process, the light velocity is by feelings such as atmospheric temperature, humidity, air pressure Condition is influenceed, it is necessary to measure these meteorologic parameters in advance, and carry out the atmospheric correction of correlation.Edited according to Li Zeqiu, Wuhan science and engineering University press publishes it in July, 2012《Total station survey technology》P22, the atmospheric correction of total powerstation also with used in the total powerstation The wavelength of ranging light wave is relevant.

The content of the invention

It is an object of the invention to propose that a kind of accurate, the easy to operate artillery barrel bore Linearity surveying of measurement is set It is standby.

To reach above-mentioned purpose, the present invention takes one of technical scheme as follows：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with a main observation device, and a main observation device is a telescope, and its collimation axis is referred to as a subjective survey line, No. one Subjective survey line intersects with the axial line of connecting rod, and axial line and the axial line of connecting rod both perpendicular to main transverse axis, another in connecting rod One end is provided with pedestal, pedestal provided with can surround the secondary transverse axis that be rotated of Pivot Point Center line, the axis parallel of secondary transverse axis in The axial line of main transverse axis, and intersected vertically with the axial line of connecting rod, auxiliary intersection point is formed, a secondary observation is fixed with secondary transverse axis Device, a secondary observation device is a telescope, and its collimation axis is referred to as a secondary line of observation, and a secondary line of observation passes through auxiliary intersection point And perpendicular to the axial line of secondary transverse axis, a subjective survey line and a secondary line of observation are in same vertical guide；Vertical pivot is returned with level Turn that horizontal limb is installed between platform, main dial is installed between main transverse axis and support corresponding site, in secondary transverse axis and pedestal Secondary scale is installed between corresponding site；Above-mentioned horizontal rotation platform, the rotation of main transverse axis and secondary transverse axis are manual；The work Target has main body, and the bottom surface of main body is provided with fixed on three support bars being in triangular distribution, the rod end of every support bar There is spherical contact, the top surface of main body is provided with level crossing, and level crossing is provided with three specific identification points, three identification points and three What the mutual alignment relation of the individual spherical contact centre of sphere was to determine；In use, target is in artillery barrel bore, its three branch Spherical contact on strut is against on artillery barrel bore wall.

To reach above-mentioned purpose, the present invention takes the two as follows of technical scheme：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with No. two main observation devices, and No. two main observation devices are a telescope, and its collimation axis is referred to as No. two subjective surveys line, No. two Subjective survey line intersects with the axial line of connecting rod, and axial line and the axial line of connecting rod both perpendicular to main transverse axis, another in connecting rod One end is provided with pedestal, pedestal provided with can surround the secondary transverse axis that be rotated of Pivot Point Center line, the axis parallel of secondary transverse axis in The axial line of main transverse axis, and intersected vertically with the axial line of connecting rod, auxiliary intersection point is formed, No. two secondary observations are fixed with secondary transverse axis Device, No. two secondary observation devices are the telescope of an in-built CCD digital camera, and its collimation axis is referred to as No. two secondary lines of observation, No. two The secondary line of observation is by auxiliary intersection point and perpendicular to the axial line of secondary transverse axis, and No. two subjective surveys line and No. two secondary lines of observation are in same lead Vertical plane；Horizontal limb is installed between vertical pivot and horizontal rotation platform, main degree is installed between main transverse axis and support corresponding site Disk, installs secondary scale between secondary transverse axis and pedestal corresponding site；Rotating to be for above-mentioned horizontal rotation platform and main transverse axis is manual, Rotating to be for secondary transverse axis is electronic；The target has main body, and the bottom surface of main body is provided with three branch being in triangular distribution Spherical contact is fixed with strut, the rod end of every support bar, the top surface of main body is provided with level crossing, and level crossing is provided with three What the mutual alignment relation of specific identification point, three identification points and three spherical contact centre ofs sphere was to determine；In use, work mesh The spherical contact that mark is on artillery barrel bore, its three support bars is against on artillery barrel bore wall.

To reach above-mentioned purpose, the present invention takes the three as follows of technical scheme：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with No. three main observation devices, and No. three main observation devices are the telescope of an in-built CCD digital camera, and its collimation axis is referred to as No. three subjective surveys line, No. three subjective surveys line intersect with the axial line of connecting rod, and both perpendicular to the axial line and connecting rod of main transverse axis Axial line, be provided with pedestal in the connecting rod other end, pedestal is provided with the secondary transverse axis that can be rotated around Pivot Point Center line, pair horizontal stroke The axis parallel of axle intersects vertically in the axial line of main transverse axis, and with the axial line of connecting rod, auxiliary intersection point is formed, on secondary transverse axis No. three secondary observation devices are fixed with, No. three secondary observation devices are the telescope of an in-built CCD digital camera, and its collimation axis is referred to as three Number secondary line of observation, No. three secondary lines of observation are by auxiliary intersection point and perpendicular to the axial line of secondary transverse axis, No. three subjective surveys line and No. three pairs The line of observation is in same vertical guide；Horizontal limb is installed between vertical pivot and horizontal rotation platform, it is corresponding in main transverse axis and support Main dial is installed between position, secondary scale is installed between secondary transverse axis and pedestal corresponding site；Above-mentioned horizontal rotation platform, main horizontal stroke The rotation of axle and secondary transverse axis is electronic；The target has main body, and the bottom surface of main body is provided with what is be in triangular distribution Spherical contact is fixed with three support bars, the rod end of every support bar, the top surface of main body, which is provided with level crossing, level crossing, to be set There are three specific identification points, what the mutual alignment relations of three identification points and three spherical contact centre ofs sphere was to determine；In use, The spherical contact that target is on artillery barrel bore, its three support bars is against on artillery barrel bore wall.

To reach above-mentioned purpose, the present invention takes the four as follows of technical scheme：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with No. four main observation devices, and No. four main observation devices are a laser, and its optical axis is referred to as No. four subjective surveys line, No. four masters The line of observation intersects with the axial line of connecting rod, and axial line and the axial line of connecting rod both perpendicular to main transverse axis, another in connecting rod End is provided with pedestal, and pedestal is provided with the secondary transverse axis that can be rotated around Pivot Point Center line, and the axis parallel of secondary transverse axis is in master The axial line of transverse axis, and intersected vertically with the axial line of connecting rod, auxiliary intersection point is formed, No. four secondary observation dresses are fixed with secondary transverse axis Put, No. four secondary observation devices are a laser, its optical axis is referred to as No. four secondary lines of observation, and No. four secondary lines of observation are by auxiliary intersection point and hang down It is straight to be in same vertical guide in the axial line of secondary transverse axis, No. four subjectivity surveys line and No. four secondary lines of observation；Vertical pivot is put down with horizontal rotation Horizontal limb is installed between platform, main dial is installed between main transverse axis and support corresponding site, it is corresponding in secondary transverse axis and pedestal Secondary scale is installed between position；Above-mentioned horizontal rotation platform, the rotation of main transverse axis and secondary transverse axis are manual；The target With main body, the bottom surface of main body is provided with three support bars being in triangular distribution, the rod end of every support bar and is fixed with ball Shape contact, the top surface of main body is provided with three PSD sensors, and the photosurface of all PSD sensors is generally aligned in the same plane, each The photosurface of PSD sensors is provided with the mutual alignment relation of a specified point, three specified points and three spherical contact centre ofs sphere It is to determine；In use, the spherical contact that target is on artillery barrel bore, its three support bars is against gun barrel In interior bore wall.

To reach above-mentioned purpose, the present invention takes the five as follows of technical scheme：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with No. five main observation devices, and No. five main observation devices are a laser, and its optical axis is referred to as No. five subjective surveys line, No. five masters The line of observation intersects with the axial line of connecting rod, and axial line and the axial line of connecting rod both perpendicular to main transverse axis, another in connecting rod End is provided with pedestal, and pedestal is provided with the secondary transverse axis that can be rotated around Pivot Point Center line, and the axis parallel of secondary transverse axis is in master The axial line of transverse axis, and intersected vertically with the axial line of connecting rod, auxiliary intersection point is formed, No. five secondary observation dresses are fixed with secondary transverse axis Put, No. five secondary observation devices are a laser, its optical axis is referred to as No. five secondary lines of observation, and No. five secondary lines of observation are by auxiliary intersection point and hang down It is straight to be in same vertical guide in the axial line of secondary transverse axis, No. five subjectivity surveys line and No. five secondary lines of observation；Vertical pivot is put down with horizontal rotation Horizontal limb is installed between platform, main dial is installed between main transverse axis and support corresponding site, it is corresponding in secondary transverse axis and pedestal Secondary scale is installed between position；Rotating to be for above-mentioned horizontal rotation platform and main transverse axis is manual, and rotating to be for secondary transverse axis is electronic；Institute Stating target has main body, and the bottom surface of main body is provided with three support bars being in triangular distribution, the rod end of every support bar On be fixed with spherical contact, the top surface of main body is provided with three PSD sensors, and the photosurfaces of all PSD sensors is located at same Plane, the photosurfaces of each PSD sensors is provided with a specified point, and three specified points are mutual with three spherical contact centre ofs sphere What position relationship was to determine；In use, the spherical contact that target is on artillery barrel bore, its three support bars is against On artillery barrel bore wall.

To reach above-mentioned purpose, the present invention takes the six as follows of technical scheme：The present invention includes detection means and work mesh Mark；The detection means has pedestal, horizontal rotation platform, support and vertical pivot, and support is fixed on horizontal rotation platform, vertical pivot It is fixedly connected with pedestal, horizontal rotation platform is on pedestal and rotated around the axial line of vertical pivot, and support is provided with horizontal And the main transverse axis that Pivot Point Center line be rotated can be surrounded, the axial line of main transverse axis intersects with the axial line of vertical pivot, forms main hand over Point, is fixed with connecting rod, the axial line of connecting rod is by main intersection point and perpendicular to the axial line of main transverse axis, in connecting rod one on main transverse axis End is fixed with No. six main observation devices, and No. six main observation devices are a laser, and its optical axis is referred to as No. six subjective surveys line, No. six masters The line of observation intersects with the axial line of connecting rod, and axial line and the axial line of connecting rod both perpendicular to main transverse axis, another in connecting rod End is provided with pedestal, and pedestal is provided with the secondary transverse axis that can be rotated around Pivot Point Center line, and the axis parallel of secondary transverse axis is in master The axial line of transverse axis, and intersected vertically with the axial line of connecting rod, auxiliary intersection point is formed, No. six secondary observation dresses are fixed with secondary transverse axis Put, No. six secondary observation devices are a laser, its optical axis is referred to as No. six secondary lines of observation, and No. six secondary lines of observation are by auxiliary intersection point and hang down It is straight to be in same vertical guide in the axial line of secondary transverse axis, No. six subjectivity surveys line and No. six secondary lines of observation；Vertical pivot is put down with horizontal rotation Horizontal limb is installed between platform, main dial is installed between main transverse axis and support corresponding site, it is corresponding in secondary transverse axis and pedestal Secondary scale is installed between position；Above-mentioned horizontal rotation platform, the rotation of main transverse axis and secondary transverse axis are electronic；The target With main body, the bottom surface of main body is provided with three support bars being in triangular distribution, the rod end of every support bar and is fixed with ball Shape contact, the top surface of main body is provided with three PSD sensors, and the photosurface of all PSD sensors is generally aligned in the same plane, each The photosurface of PSD sensors is provided with the mutual alignment relation of a specified point, three specified points and three spherical contact centre ofs sphere It is to determine；In use, the spherical contact that target is on artillery barrel bore, its three support bars is against gun barrel In interior bore wall.

The present invention has following good effect：The test equipment of the present invention is relatively simple, and test process is simple and easy In grasp, data processing software programming is simple, and measuring accuracy is high；Electronic equipment is greatly simplified, and external environment is for electronic system Adverse effect greatly reduce；The ranging process of the present invention, and the light velocity is unrelated, during measurement, just without measurement temperature again, air pressure, The atmospheric conditions such as humidity, more adapt to wild environment.The present invention can greatly simplify the calibrating to electro-optical distance measurement system.

Brief description of the drawings

Fig. 1 is the schematic diagram of embodiment 1.

Fig. 2 is Fig. 2 side view.

Fig. 3 is the angular surveying schematic diagram of embodiment 1.

Fig. 4 is the schematic diagram of embodiment 2.

Fig. 5 is Fig. 4 side view.

Fig. 6 is the angular surveying schematic diagram of embodiment 2.

Fig. 7 is the schematic diagram of embodiment 3.

Fig. 8 is Fig. 7 side view.

Fig. 9 is the angular surveying schematic diagram of embodiment 3.

Figure 10 is the schematic diagram of embodiment 4.

Figure 11 is Figure 10 side view.

Figure 12 is the angular surveying schematic diagram of embodiment 4.

Figure 13 is the front schematic view of embodiment 5.

Figure 14 is the side schematic view of embodiment 5.

Figure 15 is the angular surveying schematic diagram of embodiment 5.

Figure 16 is the front schematic view of embodiment 6.

Figure 17 is the side schematic view of embodiment 6.

Figure 18 is the angular surveying schematic diagram of embodiment 6.

Embodiment

Embodiment 1

See Fig. 1 to Fig. 3, embodiment 1 includes detection means and target.There is the detection means pedestal 1, level to return Turn platform 2, support 4 and vertical pivot 9, support 4 is fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, horizontal rotation Platform 2 is on pedestal 1 and rotated around the axial line 9a of vertical pivot 9, and support 4 is provided with horizontal and can surround Pivot Point Center line The main transverse axis 5 rotated.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.In main transverse axis 5 On be fixed with connecting rod 13, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 One end is fixed with a main observation device 6-1, and a main observation device 6-1 is a telescope, and its collimation axis is referred to as a subjectivity Survey line 6-1a.A number subjectivity survey line 6-1a intersects with the axial line 13a of connecting rod 13, and both perpendicular to the axial line of main transverse axis 5 5a and connecting rod 13 axial line 13a.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10 is provided with around Pivot Point Center line to enter The secondary transverse axis 8 of row rotation, the axial line 8a of secondary transverse axis 8 parallel to main transverse axis 5 axial line 5a, and with the axial line of connecting rod 13 13a intersects vertically, and forms auxiliary intersection point.Pair observation device a 7-1, a pair observation device 7-1 are fixed with secondary transverse axis 8 is One telescope, its collimation axis is referred to as a secondary line of observation 7-1a.A number pair line of observation 7-1a is by auxiliary intersection point and perpendicular to secondary horizontal The axial line 8a of axle 8.A number subjectivity survey line 6-1a and a secondary line of observation 7-1a are in same vertical guide.Vertical pivot 9 is returned with level Turn that horizontal limb 3 is installed between platform 2, main dial 11 is installed between main transverse axis 5 and the corresponding site of support 4, in secondary transverse axis 8 Secondary scale 12 is installed between the corresponding site of pedestal 10.Above-mentioned horizontal rotation platform 2, the rotation of main transverse axis 5 and secondary transverse axis 8 are Manually.

The target has main body 20, and the bottom surface of main body 20 is provided with three support bars 21 being in triangular distribution, Spherical contact 22 is fixed with the rod end of every support bar, the top surface of main body 20 is provided with level crossing 23, and level crossing 23 is provided with What the mutual alignment relation of three specific identification points, three identification points and three spherical centre ofs sphere of contact 22 was to determine.In use, The spherical contact 22 that target is on artillery barrel bore, its three support bars 21 is against on artillery barrel bore wall.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure a secondary observation Angle between line 7-1a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, a main observation device 6-1 and a secondary observation device 7-1 can synchronous water Flat revolution.An a number subjectivity survey line 6-1a and pair line of observation 7-1a is in same vertical rotation in surface, thus, a subjective survey line 6-1a and pair line of observation 7-1a can be intersected in measured point.

The present embodiment also has power unit, data processing section, communication interface and display screen, keyboard etc..

The application method and detection process of the present embodiment are as follows：Target is placed in artillery barrel bore somewhere, three Spherical contact 22 on support bar 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.Surveyor operates a main observation device 6-1, artificial to aim at first identification point of level crossing in cooperative target so that first Individual identification point is located on a subjective survey line 6-1a, and horizontal limb 3 provides the angle of revolution of horizontal rotation platform 2, main dial 11 Provide main angle of pitch α value.Surveyor adjusts a secondary observation device 7-1 again afterwards, artificial to aim at level crossing in cooperative target First identification point so that first identification point is located on a secondary line of observation 7-1a, now, a subjectivity survey line 6-1a and one Number pair line of observation 7-1a intersects at first identification point, and secondary scale 12 provides secondary angle of pitch β value, completes point measurement.Root According to main angle of pitch α, secondary angle of pitch β value, a known subjectivity survey line 6-1a and connecting rod 13 axial line 13a intersection point to one Number pair line of observation 7-1a and the axial line 13a of connecting rod 13 the intersection point value and main position of intersecting point apart from h, finally by number First identification point and main intersection point are obtained apart from S value and the vertical angle of the relative main intersection point of first identification point according to process part γ.In conjunction with the rotational angle of horizontal rotation platform 2, you can determine the coordinate of the relatively main intersection point of first identification point.With such Push away, determine the coordinate position of second identification point, the 3rd identification point.Thus, now tangent with artillery barrel bore wall three The coordinate position of the individual centre of sphere of spherical contact 22 is determined.Target is moved to artillery barrel bore some place positions in addition Put, said process is repeated, it is possible thereby to obtain the coordinate bit of the centre of sphere of spherical contact 22 tangent with artillery barrel bore wall everywhere Put, artillery barrel bore linearity can determine that by data processing section.

Embodiment 2

See Fig. 4 to Fig. 6, embodiment 2 includes detection means and target.There is the detection means pedestal 1, level to return Turn platform 2, support 4 and vertical pivot 9, support 4 is fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, horizontal rotation Platform 2 is on pedestal 1 and rotated around the axial line 9a of vertical pivot 9, and support 4 is provided with horizontal and can surround Pivot Point Center line The main transverse axis 5 rotated.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.In main transverse axis 5 On be fixed with connecting rod 13, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 One end is fixed with No. two main observation device 6-2, and No. two main observation device 6-2 are a telescope, and its collimation axis is referred to as No. two subjectivities Survey line 6-2a.No. two subjectivity survey line 6-2a intersect with the axial line 13a of connecting rod 13, and both perpendicular to the axial line of main transverse axis 5 5a and connecting rod 13 axial line 13a.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10 is provided with around Pivot Point Center line to enter The secondary transverse axis 8 of row rotation, the axial line 8a of secondary transverse axis 8 parallel to main transverse axis 5 axial line 5a, and with the axial line of connecting rod 13 13a intersects vertically, and forms auxiliary intersection point.No. two pairs observation device 7-2, No. two pair observation device 7-2 are fixed with secondary transverse axis 8 is The telescope of one in-built CCD digital camera, its collimation axis is referred to as No. two secondary line of observation 7-2a.No. two pair line of observation 7-2a pass through pair Intersection point and perpendicular to the axial line 8a of secondary transverse axis 8.No. two subjectivity survey line 6-2a and No. two secondary line of observation 7-2a are in same vertical Face.Horizontal limb 3 is installed between vertical pivot 9 and horizontal rotation platform 2, master is installed between main transverse axis 5 and the corresponding site of support 4 Scale 11, installs secondary scale 12 between secondary transverse axis 8 and the corresponding site of pedestal 10.Above-mentioned horizontal rotation platform 2 and main transverse axis 5 Rotate to be manually, the rotation of secondary transverse axis 8 is driven by motor, motor servomotor or ultrasound electric machine.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure No. two secondary observations Angle between line 7-2a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, No. two main observation device 6-2 and No. two secondary observation device 7-2 can synchronous water Flat revolution.No. two subjectivity survey line 6-2a and No. two pair line of observation 7-2a are in same vertical rotation in surface, thus, No. two subjective surveys line 6-2a and No. two pair line of observation 7-2a can be intersected in measured point.

The application method and detection process of the present embodiment are as follows：Target is placed in artillery barrel bore somewhere, three Spherical contact 22 on support bar 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.Surveyor operates No. two main observation device 6-2, artificial to aim at first identification point of level crossing in cooperative target so that first Individual identification point is located on No. two subjective survey line 6-2a, and horizontal limb 3 provides the angle of revolution of horizontal rotation platform 2, main dial 11 Provide main angle of pitch α value.Afterwards, No. two pair observation device 7-2 are driven by motor, built in No. two secondary observation device 7-2 Under the control of CCD digital cameras feedback signal, first identification point of level crossing in automatic aiming cooperative target so that first mark Point is located on a secondary line of observation 7-2a, now, No. two subjectivity survey line 6-2a and No. two pair line of observation 7-2a intersect at this first Individual identification point, secondary scale 12 provides secondary angle of pitch β value, completes point measurement.According to main angle of pitch α, secondary angle of pitch β value, The axial line 13a of known No. two subjectivity survey line 6-2a and connecting rod 13 intersection point is to No. two pair line of observation 7-2a and the axle of connecting rod 13 The value and main position of intersecting point apart from h of heart line 13a intersection point, first identification point is obtained finally by data processing section With main intersection point apart from S value and the vertical angle γ of the relative main intersection point of first identification point.In conjunction with the rotation of horizontal rotation platform 2 Angle, you can determine the coordinate of the relatively main intersection point of first identification point.By that analogy, second identification point, the 3rd mark are determined Know the coordinate position of point.Thus, the coordinate position of three spherical centre ofs sphere of contact 22 now tangent with artillery barrel bore wall is obtained To determine.Target is moved to artillery barrel bore some place positions in addition, said process is repeated, it is possible thereby to obtain each Place and the coordinate position of the tangent centre of sphere of spherical contact 22 of artillery barrel bore wall, cannon body is can determine that by data processing section Thorax linearity in pipe.

Embodiment 3

See Fig. 7 to Fig. 9, embodiment 3 includes detection means and target.There is the detection means pedestal 1, level to return Turn platform 2, support 4 and vertical pivot 9, support 4 is fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, horizontal rotation Platform 2 is on pedestal 1 and rotated around the axial line 9a of vertical pivot 9, and support 4 is provided with horizontal and can surround Pivot Point Center line The main transverse axis 5 rotated.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.In main transverse axis 5 On be fixed with connecting rod 13, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 One end is fixed with No. three main observation device 6-3, and No. three main observation device 6-3 are the telescope of an in-built CCD digital camera, and it is regarded Fiducial axis is referred to as No. three subjective survey line 6-3a.No. three subjectivity survey line 6-3a intersect with the axial line 13a of connecting rod 13, and both perpendicular to The axial line 5a of the main transverse axis 5 and axial line 13a of connecting rod 13.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10 is provided with energy The secondary transverse axis 8 rotated around Pivot Point Center line, the axial line 8a of secondary transverse axis 8 parallel to main transverse axis 5 axial line 5a, and with The axial line 13a of connecting rod 13 intersects vertically, and forms auxiliary intersection point.It is fixed with secondary transverse axis 8, No. three secondary observation device 7-3 are one The telescope of in-built CCD digital camera, its collimation axis is referred to as No. three secondary line of observation 7-3a.No. three pair line of observation 7-3a are handed over by pair Put and perpendicular to the axial line 8a of secondary transverse axis 8.No. three subjectivity survey line 6-3a and No. three secondary line of observation 7-3a are in same vertical guide. Horizontal limb 3 is installed between vertical pivot 9 and horizontal rotation platform 2, main degree is installed between main transverse axis 5 and the corresponding site of support 4 Disk 11, installs secondary scale 12 between secondary transverse axis 8 and the corresponding site of pedestal 10.Above-mentioned horizontal rotation platform 2, main transverse axis 5 and pair The rotation of transverse axis 8 is respectively driven by motor, and motor is servomotor or ultrasound electric machine.The rotation of main transverse axis 5 drives No. three subjective surveys Device 6-3 rotates, and the rotation of secondary transverse axis 8 drives No. three secondary observation device 7-3 rotations.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure No. three secondary observations Angle between line 7-3a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, No. three main observation device 6-3 and No. three secondary observation device 7-3 can synchronous water Flat revolution.No. three subjectivity survey line 6-3a and No. three pair line of observation 7-3a are in same vertical rotation in surface, thus, No. three subjective surveys line 6-3a and No. three pair line of observation 7-3a can be intersected in measured point.

The application method and detection process of the present embodiment are as follows：Target is placed in somewhere in gun barrel, three branch Spherical contact 22 on strut 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.Horizontal rotation platform 2 is driven by its motor, and main transverse axis 5 is driven by its motor, in the CCD built in No. three main observation device 6-3 Under the control of digital camera feedback signal, first identification point of level crossing in No. three main observation device 6-3 automatic aiming cooperative targets, So that first identification point is located on No. three subjective survey line 6-3a, horizontal limb 3 provides the angle of revolution of horizontal rotation platform 2, Main dial 11 provides main angle of pitch α value.Secondary transverse axis 8 is driven by its motor afterwards, built in No. three secondary observation device 7-3 Under the control of CCD digital cameras feedback signal, first mark of level crossing in No. three secondary observation device 7-3 automatic aiming cooperative targets Point so that first identification point is located on No. three secondary line of observation 7-3a, now, No. three subjectivity survey line 6-3a and No. three secondary lines of observation 7-3a intersects at first identification point, and secondary scale 12 provides secondary angle of pitch β value, completes point measurement.According to the main angle of pitch α, secondary angle of pitch β value, the axial line 13a of known No. three subjectivity survey line 6-3a and connecting rod 13 intersection point are to No. three pair lines of observation 7-3a and the axial line 13a of connecting rod 13 the intersection point value and main position of intersecting point apart from h, finally by data processing section First identification point and main intersection point are obtained apart from S value and the vertical angle γ of the relative main intersection point of first identification point.In conjunction with water The rotational angle of flat revolving dial 2, you can determine the coordinate of the relatively main intersection point of first identification point.By that analogy, second is determined The coordinate position of individual identification point, the 3rd identification point.Thus, three now tangent with artillery barrel bore wall spherical contacts 22 The coordinate position of the centre of sphere is determined.Target is moved to artillery barrel bore some place positions in addition, above-mentioned mistake is repeated Journey, it is possible thereby to the coordinate position of the centre of sphere of spherical contact 22 tangent with artillery barrel bore wall everywhere be obtained, at data Reason part can determine that artillery barrel bore linearity.

Embodiment 4

See Figure 10 to Figure 12, embodiment 4 includes detection means and target.The detection means has pedestal 1, level Revolving dial 2, support 4 and vertical pivot 9, support 4 are fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, and level is returned Turn platform 2 to be on pedestal 1 and rotate around the axial line 9a of vertical pivot 9, support 4 is provided with horizontal and can surround Pivot Point Center The main transverse axis 5 that line is rotated.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.In main horizontal stroke Connecting rod 13 is fixed with axle 5, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 one end are fixed with No. four main observation device 6-4, and No. four main observation device 6-4 are a laser, and its optical axis is referred to as No. four subjectivities Survey line 6-4a.No. four subjectivity survey line 6-4a intersect with the axial line 13a of connecting rod 13, and both perpendicular to the axial line of main transverse axis 5 5a and connecting rod 13 axial line 13a.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10 is provided with around Pivot Point Center line to enter The secondary transverse axis 8 of row rotation, the axial line 8a of secondary transverse axis 8 parallel to main transverse axis 5 axial line 5a, and with the axial line of connecting rod 13 13a intersects vertically, and forms auxiliary intersection point.No. four pairs observation device 7-4, No. four pair observation device 7-4 are fixed with secondary transverse axis 8 is One laser, its optical axis is referred to as No. four secondary line of observation 7-4a.No. four pair line of observation 7-4a are by auxiliary intersection point and perpendicular to secondary transverse axis 8 Axial line 8a.No. four subjectivity survey line 6-4a and No. four secondary line of observation 7-4a are in same vertical guide.Vertical pivot 9 is put down with horizontal rotation Horizontal limb 3 is installed between platform 2, main dial 11 is installed between main transverse axis 5 and the corresponding site of support 4, in secondary transverse axis 8 and axle Secondary scale 12 is installed between the corresponding site of frame 10.Above-mentioned horizontal rotation platform 2, the rotation of main transverse axis 5 and secondary transverse axis 8 are hand It is dynamic.

The target has main body 20, and the bottom surface of main body 20 is provided with three support bars 21 being in triangular distribution, Spherical contact 22 is fixed with the rod end of every support bar, the top surface of main body 20 is provided with three PSD sensors 24, all PSD The photosurface of sensor is generally aligned in the same plane M, and the photosurface of each PSD sensors 24 is provided with a specified point, and three are specified What the mutual alignment relation of point and three spherical centre ofs sphere of contact 22 was to determine.In use, target is in artillery barrel bore, Spherical contact 22 on its three support bars 21 is against on artillery barrel bore wall.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure No. four secondary observations Angle between line 7-4a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, No. four main observation device 6-4 and No. four secondary observation device 7-4 can synchronous water Flat revolution.No. four subjectivity survey line 6-4a and No. four pair line of observation 7-4a are in same vertical rotation in surface, thus, No. four subjective surveys line 6-4a and No. four pair line of observation 7-4a can be intersected in measured point.

The application method and detection process of the present embodiment are as follows：Target is placed in somewhere in gun barrel, three branch Spherical contact 22 on strut 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.During measurement, No. four main observation device 6-4 are opened, No. four secondary observation device 7-4 are closed.Surveyor operates No. four subjective survey to fill 6-4 is put, it is artificial to aim at PSD first specified point of sensor so that first specified point according to PSD sensor feedback signals On No. four subjective survey line 6-4a, horizontal limb 3 provides the angle of revolution of horizontal rotation platform 2, and main dial 11 provides master and bowed The value of angle of elevation alpha.Afterwards, No. four main observation device 6-4 are closed, No. four secondary observation device 7-4 are opened.Surveyor adjusts No. four pairs again Observation device 7-4, it is artificial to aim at PSD first specified point of sensor so that this first according to PSD sensor feedback signals Specified point is located on No. four secondary line of observation 7-4a, and now, No. four subjectivity survey line 6-4a and No. four pair line of observation 7-4a intersect at this First specified point, secondary scale 12 provides secondary angle of pitch β value, completes point measurement.According to main angle of pitch α, secondary angle of pitch β Value, the axial line 13a of known No. four subjectivity survey line 6-4a and connecting rod 13 intersection point are to No. four pair line of observation 7-4a and connecting rod 13 Axial line 13a intersection point the value and main position of intersecting point apart from h, finally by data processing section obtain first finger Pinpoint with main intersection point apart from S value and the vertical angle γ of the relative main intersection point of first specified point.In conjunction with horizontal rotation platform 2 Rotational angle, you can determine the coordinate of the relatively main intersection point of first specified point.By that analogy, second specified point, the 3rd are determined The coordinate position of individual specified point.Thus, the coordinate bit of three spherical centre ofs sphere of contact 22 now tangent with artillery barrel bore wall Put and determined.Target is moved to artillery barrel bore some place positions in addition, said process is repeated, it is possible thereby to obtain The coordinate position of the centre of sphere of spherical contact 22 tangent with artillery barrel bore wall everywhere is obtained, fire can determine that by data processing section Thorax linearity in barrel pipe.

Embodiment 5

See Figure 13 to Figure 15, embodiment 5 includes detection means and target.Detection means has pedestal 1, horizontal rotation Platform 2, support 4 and vertical pivot 9, support 4 are fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, and horizontal rotation is put down Platform 2 is on pedestal 1 and rotated around the axial line 9a of vertical pivot 9, and support 4 is provided with horizontal and can entered around Pivot Point Center line The main transverse axis 5 of row rotation.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.On main transverse axis 5 Connecting rod 13 is fixed with, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 1 End is fixed with No. five main observation device 6-5, and No. five main observation device 6-5 are a laser, and its optical axis is referred to as No. five subjective surveys line 6-5a.No. five subjectivity survey line 6-5a intersect with the axial line 13a of connecting rod 13, and axial line 5a both perpendicular to main transverse axis 5 and The axial line 13a of connecting rod 13.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10, which is provided with, to be revolved around Pivot Point Center line The secondary transverse axis 8 turned, the axial line 8a of secondary transverse axis 8 and hangs down parallel to the axial line 5a of main transverse axis 5 with the axial line 13a of connecting rod 13 It is straight intersecting, form auxiliary intersection point.No. five secondary observation device 7-5 are fixed with secondary transverse axis 8, No. five secondary observation device 7-5 are one sharp Light device, its optical axis is referred to as No. five secondary line of observation 7-5a.No. five pair line of observation 7-5a are by auxiliary intersection point and perpendicular to the axle of secondary transverse axis 8 Heart line 8a.No. five subjectivity survey line 6-5a and No. five secondary line of observation 7-5a are in same vertical guide.Vertical pivot 9 and horizontal rotation platform 2 Between horizontal limb 3 is installed, between main transverse axis 5 and the corresponding site of support 4 install main dial 11, in secondary transverse axis 8 and pedestal Secondary scale 12 is installed between 10 corresponding sites.Rotating to be for above-mentioned horizontal rotation platform 2 and main transverse axis 5 is manual, the rotation of secondary transverse axis 8 Turn to be driven by motor, motor is servomotor or ultrasound electric machine.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure No. five secondary observations Angle between line 7-5a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, No. five main observation device 6-5 and No. five secondary observation device 7-5 can synchronous water Flat revolution.No. five subjectivity survey line 6-5a and No. five pair line of observation 7-5a are in same vertical rotation in surface, thus, No. five subjective surveys line 6-5a and No. five pair line of observation 7-5a can be intersected in measured point.

The application method and detection process of the present embodiment are as follows：Target is placed in somewhere in gun barrel, three branch Spherical contact 22 on strut 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.During measurement, No. five main observation device 6-5 are opened, No. five secondary observation device 7-5 are closed.Surveyor operates No. five subjective survey to fill 6-5 is put, it is artificial to aim at PSD first specified point of sensor so that first specified point according to PSD sensor feedback signals On No. five subjective survey line 6-5a, horizontal limb 3 provides the angle of revolution of horizontal rotation platform 2, and main dial 11 provides master and bowed The value of angle of elevation alpha.Afterwards, No. five main observation device 6-5 are closed, No. five secondary observation device 7-5 are opened.No. five secondary observation device 7-5 Driven by motor, under the control of PSD sensor feedback signals, first specified point of automatic aiming PSD sensors so that this first Individual specified point is located on No. five secondary line of observation 7-5a, and now, No. five subjectivity survey line 6-5a and No. five pair line of observation 7-5a are intersected at First specified point, secondary scale 12 provides secondary angle of pitch β value, completes point measurement.According to main angle of pitch α, secondary angle of pitch β Value, the axial line 13a of known No. five subjectivity survey line 6-5a and connecting rod 13 intersection point is to No. five pair line of observation 7-5a and connecting rod The value and main position of intersecting point apart from h of 13 axial line 13a intersection point, first is obtained finally by data processing section Specified point and main intersection point are apart from S value and the vertical angle γ of the relative main intersection point of first specified point.In conjunction with horizontal rotation platform 2 Rotational angle, you can determine the coordinate of the relatively main intersection point of first specified point.By that analogy, second specified point, are determined The coordinate position of three specified points.Thus, the coordinate of three spherical centre ofs sphere of contact 22 now tangent with artillery barrel bore wall Position is determined.Target is moved to artillery barrel bore some place positions in addition, said process is repeated, it is possible thereby to The coordinate position of the centre of sphere of spherical contact 22 tangent with artillery barrel bore wall everywhere is obtained, be can determine that by data processing section Artillery barrel bore linearity.

Embodiment 6

See Figure 16 to Figure 18, embodiment 6 includes detection means and target.Detection means has pedestal 1, horizontal rotation Platform 2, support 4 and vertical pivot 9, support 4 are fixed on horizontal rotation platform 2, and vertical pivot 9 is fixedly connected with pedestal 1, and horizontal rotation is put down Platform 2 is on pedestal 1 and rotated around the axial line 9a of vertical pivot 9, and support 4 is provided with horizontal and can entered around Pivot Point Center line The main transverse axis 5 of row rotation.The axial line 5a of main transverse axis 5 intersects with the axial line 9a of vertical pivot 9, forms main intersection point.On main transverse axis 5 Connecting rod 13 is fixed with, the axial line 13a of connecting rod 13 is by main intersection point and perpendicular to the axial line 5a of main transverse axis 5.In connecting rod 13 1 End is fixed with No. six main observation device 6-6, and No. six main observation device 6-6 are a laser, and its optical axis is referred to as No. six subjective surveys line 6-6a.No. six subjectivity survey line 6-6a intersect with the axial line 13a of connecting rod 13, and axial line 5a both perpendicular to main transverse axis 5 and The axial line 13a of connecting rod 13.Pedestal 10 is provided with the other end of connecting rod 13, pedestal 10, which is provided with, to be revolved around Pivot Point Center line The secondary transverse axis 8 turned, the axial line 8a of secondary transverse axis 8 and hangs down parallel to the axial line 5a of main transverse axis 5 with the axial line 13a of connecting rod 13 It is straight intersecting, form auxiliary intersection point.No. six secondary observation device 7-6 are fixed with secondary transverse axis 8, No. six secondary observation device 7-6 are one sharp Light device, its optical axis is referred to as No. six secondary line of observation 7-6a.No. six pair line of observation 7-6a are by auxiliary intersection point and perpendicular to the axle of secondary transverse axis 8 Heart line 8a.No. six subjectivity survey line 6-6a and No. six secondary line of observation 7-6a are in same vertical guide.Vertical pivot 9 and horizontal rotation platform 2 Between horizontal limb 3 is installed, between main transverse axis 5 and the corresponding site of support 4 install main dial 11, in secondary transverse axis 8 and pedestal Secondary scale 12 is installed between 10 corresponding sites.The rotation of above-mentioned horizontal rotation platform 2, main transverse axis 5 and secondary transverse axis 8 is respectively by respective Motor drives, and motor is servomotor or ultrasound electric machine.

Horizontal limb 3 is used for the angle of revolution for measuring horizontal rotation platform 2, and main dial 11 is used for the axle center for measuring connecting rod 13 Angle between line 13a and the axial line 9a of vertical pivot 9 is main angle of pitch α size, and secondary scale 12 is used to measure No. six secondary observations Angle between line 7-6a and the axial line 13a of connecting rod 13 is secondary angle of pitch β size.

In the presence of horizontal rotation platform 2, No. six main observation device 6-6 and No. six secondary observation device 7-6 can synchronous water Flat revolution.No. six subjectivity survey line 6-6a and No. six pair line of observation 7-6a are in same vertical rotation in surface, thus, No. six subjective surveys line 6-6a and No. six pair line of observation 7-6a can be intersected in measured point.

The application method and detection process of the present embodiment are as follows：Target is placed in somewhere in gun barrel, three branch Spherical contact 22 on strut 21 is against on artillery barrel bore wall into tangent shape.Detection means is placed in outside gun barrel 19 Portion.During measurement, No. six main observation device 6-6 are opened, No. six secondary observation device 7-6 are closed.Horizontal rotation platform is driven by its motor Dynamic, main transverse axis 5 is driven by its motor, under the control of PSD sensor feedback signals, No. six main observation device 6-6 automatic aimings PSD First specified point of sensor so that first specified point is located on subjective survey line 6-6a, and horizontal limb 3 provides horizontal rotation The angle of revolution of platform 2, main dial 11 provides main angle of pitch α value.Afterwards, No. six main observation device 6-6 are closed, No. six are opened Secondary observation device 7-6.No. six pair observation device 7-6 are driven by motor, under the control of PSD sensor feedback signals, automatic aiming First specified point of PSD sensors so that first specified point is located on secondary line of observation 7-6a, now, No. six subjective surveys line 6-6a and No. six pair line of observation 7-6a intersects at first specified point, and secondary scale 12 provides secondary angle of pitch β value, completes the point Measurement.According to the axial line 13a's of main angle of pitch α, secondary angle of pitch β value, known No. six subjectivity survey line 6-6a and connecting rod 13 Intersection point to No. six pair line of observation 7-6a and the axial line 13a of connecting rod 13 intersection point the value and main position of intersecting point apart from h, most First specified point and main intersection point are obtained apart from S value and the relative main intersection point of first specified point by data processing section afterwards Vertical angle γ.In conjunction with the rotational angle of horizontal rotation platform 2, you can determine the coordinate of the relatively main intersection point of first specified point. By that analogy, the coordinate position of second specified point, the 3rd specified point is determined.Thus, now with artillery barrel bore wall phase The coordinate position for the three spherical centre ofs sphere of contact 22 cut is determined.Target is moved to artillery barrel bore some in addition Locate position, said process is repeated, it is possible thereby to obtain the seat of the centre of sphere of spherical contact 22 tangent with artillery barrel bore wall everywhere Cursor position, artillery barrel bore linearity is can determine that by data processing section.

In-built CCD digital camera telescope is mentioned in above-described embodiment, it is seen that He Baoxi is edited, the Yellow River water conservancy publishing house In August, 2005 publishes it《Total station survey technology》Chapter 2.See also plum text victory, Yang Hongzhu, publishing house of Wuhan University 2011 November publishes it《Robot measurement is developed and application》2nd chapter.

Claims

1. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with a main observation device（6-1）, a main observation device（6-1）For a telescope, its collimation axis is referred to as No. one Subjective survey line（6-1a）, a subjective survey line（6-1a）With connecting rod（13）Axial line（13a）It is intersecting, and both perpendicular to main horizontal stroke Axle（5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with pedestal（10）, pedestal （10）Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line（8a）Parallel to main horizontal stroke Axle（5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, auxiliary intersection point is formed, in secondary transverse axis（8）On It is fixed with a secondary observation device（7-1）, a secondary observation device（7-1）For a telescope, its collimation axis is referred to as a secondary sight Survey line（7-1a）, a secondary line of observation（7-1a）By auxiliary intersection point and perpendicular to secondary transverse axis（8）Axial line（8a）, a subjectivity Survey line（6-1a）With a secondary line of observation（7-1a）In same vertical guide；Vertical pivot（9）With horizontal rotation platform（2）Between install There is horizontal limb（3）, in main transverse axis（5）And support（4）Main dial is installed between corresponding site（11）, in secondary transverse axis（8）And axle Frame（10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation platform（2）, main transverse axis（5）With secondary transverse axis（8）Rotation It is manual to turn；The target has main body（20）, main body（20）Bottom surface be provided with three branch being in triangular distribution Strut（21）, spherical contact is fixed with the rod end of every support bar（22）, main body（20）Top surface be provided with level crossing（23）, Level crossing（23）Provided with three specific identification points, three identification points and three spherical contacts（22）Close the mutual alignment of the centre of sphere What system was to determine；In use, target is in artillery barrel bore, its three support bars（21）On spherical contact（22）Support On artillery barrel bore wall.

2. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with No. two main observation devices（6-2）, No. two main observation devices（6-2）For a telescope, its collimation axis is referred to as No. two Subjective survey line（6-2a）, No. two subjective surveys line（6-2a）With connecting rod（13）Axial line（13a）It is intersecting, and both perpendicular to main horizontal stroke Axle（5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with pedestal（10）, pedestal （10）Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line（8a）Parallel to main horizontal stroke Axle（5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, auxiliary intersection point is formed, in secondary transverse axis（8）On It is fixed with No. two secondary observation devices（7-2）, No. two secondary observation devices（7-2）For the telescope of an in-built CCD digital camera, it is regarded Fiducial axis is referred to as No. two secondary lines of observation（7-2a）, No. two secondary lines of observation（7-2a）By auxiliary intersection point and perpendicular to secondary transverse axis（8）Axle Heart line（8a）, No. two subjective surveys line（6-2a）With No. two secondary lines of observation（7-2a）In same vertical guide；Vertical pivot（9）Returned with level Turn platform（2）Between horizontal limb is installed（3）, in main transverse axis（5）And support（4）Main dial is installed between corresponding site （11）, in secondary transverse axis（8）And pedestal（10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation platform（2）And master Transverse axis（5）Rotate to be manually, secondary transverse axis（8）Rotate to be it is electronic；The target has main body（20）, main body（20）'s Bottom surface is provided with three support bars being in triangular distribution（21）, spherical contact is fixed with the rod end of every support bar（22）, Main body（20）Top surface be provided with level crossing（23）, level crossing（23）Provided with three specific identification points, three identification points and Three spherical contacts（22）What the mutual alignment relation of the centre of sphere was to determine；In use, target is in artillery barrel bore, its Three support bars（21）On spherical contact（22）It is against on artillery barrel bore wall.

3. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with No. three main observation devices（6-3）, No. three main observation devices（6-3）For the telescope of an in-built CCD digital camera, Its collimation axis is referred to as No. three subjective surveys line（6-3a）, No. three subjective surveys line（6-3a）With connecting rod（13）Axial line（13a）It is intersecting, And both perpendicular to main transverse axis（5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with Pedestal（10）, pedestal（10）Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line （8a）Parallel to main transverse axis（5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, form auxiliary intersection point, In secondary transverse axis（8）On be fixed with No. three secondary observation devices（7-3）, No. three secondary observation devices（7-3）For an in-built CCD digital camera Telescope, its collimation axis is referred to as No. three secondary lines of observation（7-3a）, No. three secondary lines of observation（7-3a）By auxiliary intersection point and perpendicular to Secondary transverse axis（8）Axial line（8a）, No. three subjective surveys line（6-3a）With No. three secondary lines of observation（7-3a）In same vertical guide；It is perpendicular Axle（9）With horizontal rotation platform（2）Between horizontal limb is installed（3）, in main transverse axis（5）And support（4）Between corresponding site Main dial is installed（11）, in secondary transverse axis（8）And pedestal（10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation is put down Platform（2）, main transverse axis（5）With secondary transverse axis（8）Rotation be electronic；The target has main body（20）, main body（20）'s Bottom surface is provided with three support bars being in triangular distribution（21）, spherical contact is fixed with the rod end of every support bar（22）, Main body（20）Top surface be provided with level crossing（23）, level crossing（23）Provided with three specific identification points, three identification points and Three spherical contacts（22）What the mutual alignment relation of the centre of sphere was to determine；In use, target is in artillery barrel bore, its Three support bars（21）On spherical contact（22）It is against on artillery barrel bore wall.

4. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with No. four main observation devices（6-4）, No. four main observation devices（6-4）For a laser, its optical axis is referred to as No. four masters The line of observation（6-4a）, No. four subjective surveys line（6-4a）With connecting rod（13）Axial line（13a）It is intersecting, and both perpendicular to main transverse axis （5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with pedestal（10）, pedestal（10） Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line（8a）Parallel to main transverse axis （5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, auxiliary intersection point is formed, in secondary transverse axis（8）It is upper solid Surely there are No. four secondary observation devices（7-4）, No. four secondary observation devices（7-4）For a laser, its optical axis is referred to as No. four secondary lines of observation （7-4a）, No. four secondary lines of observation（7-4a）By auxiliary intersection point and perpendicular to secondary transverse axis（8）Axial line（8a）, No. four subjective surveys line （6-4a）With No. four secondary lines of observation（7-4a）In same vertical guide；Vertical pivot（9）With horizontal rotation platform（2）Between water is installed Pingdu disk（3）, in main transverse axis（5）And support（4）Main dial is installed between corresponding site（11）, in secondary transverse axis（8）And pedestal （10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation platform（2）, main transverse axis（5）With secondary transverse axis（8）Rotation It is manual；The target has main body（20）, main body（20）Bottom surface be provided be in triangular distribution three supports Bar（21）, spherical contact is fixed with the rod end of every support bar（22）, main body（20）Top surface provided with three PSD sensors （24）, the photosurface of all PSD sensors is generally aligned in the same plane（M）, each PSD sensors（24）Photosurface be provided with one Specified point, three specified points and three spherical contacts（22）What the mutual alignment relation of the centre of sphere was to determine；In use, target In artillery barrel bore, its three support bars（21）On spherical contact（22）It is against on artillery barrel bore wall.

5. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with No. five main observation devices（6-5）, No. five main observation devices（6-5）For a laser, its optical axis is referred to as No. five masters The line of observation（6-5a）, No. five subjective surveys line（6-5a）With connecting rod（13）Axial line（13a）It is intersecting, and both perpendicular to main transverse axis （5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with pedestal（10）, pedestal（10） Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line（8a）Parallel to main transverse axis （5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, auxiliary intersection point is formed, in secondary transverse axis（8）It is upper solid Surely there are No. five secondary observation devices（7-5）, No. five secondary observation devices（7-5）For a laser, its optical axis is referred to as No. five secondary lines of observation （7-5a）, No. five secondary lines of observation（7-5a）By auxiliary intersection point and perpendicular to secondary transverse axis（8）Axial line（8a）, No. five subjective surveys line （6-5a）With No. five secondary lines of observation（7-5a）In same vertical guide；Vertical pivot（9）With horizontal rotation platform（2）Between water is installed Pingdu disk（3）, in main transverse axis（5）And support（4）Main dial is installed between corresponding site（11）, in secondary transverse axis（8）And pedestal （10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation platform（2）With main transverse axis（5）Rotate to be manually, it is secondary Transverse axis（8）Rotate to be it is electronic；The target has main body（20）, main body（20）Bottom surface provided with being in triangular distribution Three support bars（21）, spherical contact is fixed with the rod end of every support bar（22）, main body（20）Top surface be provided with three Individual PSD sensors（24）, the photosurface of all PSD sensors is generally aligned in the same plane（M）, each PSD sensors（24）It is photosensitive Face is provided with a specified point, three specified points and three spherical contacts（22）What the mutual alignment relation of the centre of sphere was to determine；Make Used time, target is in artillery barrel bore, its three support bars（21）On spherical contact（22）It is against in gun barrel In bore wall.

6. a kind of artillery barrel bore Linearity surveying equipment, it is characterised in that：Including detection means and target；The inspection Surveying device has pedestal（1）, horizontal rotation platform（2）, support（4）And vertical pivot（9）, support（4）It is fixed on horizontal rotation platform （2）On, vertical pivot（9）With pedestal（1）It is fixedly connected, horizontal rotation platform（2）In pedestal（1）Above and around vertical pivot（9）Axle Heart line（9a）Rotation, support（4）Provided with main transverse axis that is horizontal and being rotated around Pivot Point Center line（5）, main transverse axis （5）Axial line（5a）With vertical pivot（9）Axial line（9a）It is intersecting, main intersection point is formed, in main transverse axis（5）On be fixed with connecting rod （13）, connecting rod（13）Axial line（13a）By main intersection point and perpendicular to main transverse axis（5）Axial line（5a）, in connecting rod（13） One end is fixed with No. six main observation devices（6-6）, No. six main observation devices（6-6）For a laser, its optical axis is referred to as No. six masters The line of observation（6-6a）, No. six subjective surveys line（6-6a）With connecting rod（13）Axial line（13a）It is intersecting, and both perpendicular to main transverse axis （5）Axial line（5a）And connecting rod（13）Axial line（13a）, in connecting rod（13）The other end is provided with pedestal（10）, pedestal（10） Provided with the secondary transverse axis that can be rotated around Pivot Point Center line（8）, secondary transverse axis（8）Axial line（8a）Parallel to main transverse axis （5）Axial line（5a）, and and connecting rod（13）Axial line（13a）Intersect vertically, auxiliary intersection point is formed, in secondary transverse axis（8）It is upper solid Surely there are No. six secondary observation devices（7-6）, No. six secondary observation devices（7-6）For a laser, its optical axis is referred to as No. six secondary lines of observation （7-6a）, No. six secondary lines of observation（7-6a）By auxiliary intersection point and perpendicular to secondary transverse axis（8）Axial line（8a）, No. six subjective surveys line （6-6a）With No. six secondary lines of observation（7-6a）In same vertical guide；Vertical pivot（9）With horizontal rotation platform（2）Between water is installed Pingdu disk（3）, in main transverse axis（5）And support（4）Main dial is installed between corresponding site（11）, in secondary transverse axis（8）And pedestal （10）Secondary scale is installed between corresponding site（12）；Above-mentioned horizontal rotation platform（2）, main transverse axis（5）With secondary transverse axis（8）Rotation It is electronic；The target has main body（20）, main body（20）Bottom surface be provided be in triangular distribution three supports Bar（21）, spherical contact is fixed with the rod end of every support bar（22）, main body（20）Top surface provided with three PSD sensors （24）, the photosurface of all PSD sensors is generally aligned in the same plane（M）, each PSD sensors（24）Photosurface be provided with one Specified point, three specified points and three spherical contacts（22）What the mutual alignment relation of the centre of sphere was to determine；In use, target In artillery barrel bore, its three support bars（21）On spherical contact（22）It is against on artillery barrel bore wall.