CN106197518B - It is a kind of to be displaced and traveling time synchronous calibration method and device - Google Patents
It is a kind of to be displaced and traveling time synchronous calibration method and device Download PDFInfo
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- CN106197518B CN106197518B CN201610757893.3A CN201610757893A CN106197518B CN 106197518 B CN106197518 B CN 106197518B CN 201610757893 A CN201610757893 A CN 201610757893A CN 106197518 B CN106197518 B CN 106197518B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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Abstract
It is a kind of displacement and traveling time synchronous calibration method and device belong to road and bridge and tunnel construction construction field.It is characterized by comprising for display, motor, motor driven, host, slide unit follows module, sliding rail, lead screw, rotary encoder, bracket;Fixed heel is placed on lead screw with module, slide unit on slide unit, and lead screw is arranged on the slide rail, and one end of lead screw is arranged in rotary encoder, and the other end of lead screw is arranged in motor;Sliding rail is arranged on bracket;Host connection follows module, motor driven, rotary encoder and display.The present invention realizes the synchronous calibration of displacement and traveling time, ensure that the accurate of calibration result, has fabulous applicability.
Description
Technical field
It is a kind of displacement and traveling time synchronous calibration method and device belong to road and bridge and tunnel construction construction field.
Background technique
With the rapid development of China's economic, road and bridge and tunnel construction construction volume are growing day by day, road and bridge work
Journey detection device type is also increasing, and equipment Alignment demand is very big.Carrying out road and the calibration of science of bridge building detection device
Find there are many equipment to need to calibrate displacement and mobile time, such as the calibration of bitumen needle forcemeter, deflection of bridge span instrument in the process
Device, asphalt softening point instrument etc..Currently, existing calibration method is to displacement and the means calibrated of traveling time and disunity,
The problems such as generally existing poor for applicability, cost is high, it is difficult to trace to the source, accuracy is low, it is therefore necessary to develop a set of displacement and it is mobile when
Between the method and apparatus of joint calibration meet the needs of instrument calibration to use unit to provide guaranteed measurement technology.
1) calibration being displaced
Grating scale or laser interferometer are generallyd use to the calibration of displacement at present.
When carrying out displacement calibration using grating scale, needs to design corresponding fixture for the read head of grating scale and be fixed on tested set
Standby mobile terminal, while keeping the main scale of grating scale consistent with moving direction.
The mobile terminal for needing for microscope group to be mounted on fixing end and tested equipment when displacement calibration is carried out using laser interferometer,
Displacement is measured by the variation of mirror group distance.
2) calibration of time
It generallys use stopwatch or electronic counter carries out time calibration.
Present technology has the disadvantage in that
1) cost is high.The higher cost of displacement calibration is carried out using high-precision grating scale or laser interferometer.
2) synchronous calibration of displacement and time can not be carried out.The prior art be only capable of separately to displacement detection function and
Clocking capability is calibrated, and can not be calibrated to the synchronism of displacement detection function and clocking capability, be increased calibration difficulty,
And the accuracy of calibration is not can guarantee.
3) applicability is poor.Existing collimation technique is needed for the specific calibrating installation of specific equipment development and connection folder
Tool etc..
Summary of the invention
It is actively displaced: generating displacement by gravity and because of the frictional force effect that gravity generates.
Passive displacement: the external force other than by gravity and the frictional force generated by gravity generates displacement.
A kind of displacement and traveling time synchronous calibration device, it is characterised in that: including for display, motor, motor driven,
Host, slide unit follow module, sliding rail, lead screw, rotary encoder, bracket;
Fixed heel is placed on lead screw with module, slide unit on slide unit, and lead screw is arranged on the slide rail, and rotary encoder setting exists
The other end of lead screw is arranged in one end of lead screw, motor;Sliding rail is arranged on bracket;Host connection follow module, motor driven,
Rotary encoder and display.
Using the method for described device, it is characterised in that:
Being chosen according to different tested equipment different follows module specific as follows: when the movement of tested equipment is unidirectionally to move
When dynamic, may be selected first and follow module, when the movement of tested equipment is reciprocating type mobile, select second follow module or
Third follows module;Wherein, it second follows module application to be equipped with groove structure in movable part and there is the tested of reciprocating motion
Equipment, such as mechanical arm clamper.Second follows module to be placed in groove structure, and third follows module for movable part cube
The structure of body, the movable part are placed in the frame that two thirds follow module to surround;2 second follow module or third with
It is applied to the tested equipment to move up and down with module composition, such as horizontal and vertical vibration can be reappeared simultaneously for certain
Deflection of bridge span instrument calibrating apparatus;
First to follow module be exactly that connector side has pressure detector;
Second to follow module be exactly that connector two sides have pressure detector;
It is exactly that connector is two horizontal lines and surrounds with the line of horizontal line that third, which follows module,Shape,
There is pressure detector in two inside of two lines being parallel to each other;
Calibrating installation is placed, and the pressure detector of module and the movable part of tested equipment will be followed to contact;When tested
The direction of displacement of equipment is horizontal direction, is placed as being horizontally arranged;When the direction of displacement of tested equipment is vertical direction, put
It is set to vertical direction placement;
(1) calibrating installation powers on, device startup self-detection;
(2) start tested equipment, displacement takes place in the movable part of tested equipment;
(3) movable part of equipment is detected to following module to generate pressure, and calibrating installation measures pressure value size and direction;
(4) if measuring pressure for the first time after calibrating installation starting, start the laggard scanning frequency degree of timing and calculate, it is on the contrary then direct
Carry out speed calculating;
(5) motor rotational parameters are calculated by speed, is operated by motor driven driving motor, drive slide unit mobile;
(6) above-mentioned (3)~(5) are repeated, until stopping calibration;
(7) stop calibration, slide unit position zero;
(8) displacement and traveling time synchronous calibration device are closed.
The present invention realizes the synchronous calibration of displacement and traveling time, ensure that the accurate of calibration result.With fabulous
Applicability, can be applied to the various roads such as bitumen needle forcemeter, asphalt softening point instrument, bitumen ductility instrument, deflection of bridge span instrument with
The calibration of science of bridge building detection device.The movement speed of actively displacement can be controlled, realizes accurate alignment.Quilt can actively be adapted to
The movement speed of dynamic displacement, realizes accurate alignment.
Detailed description of the invention
Fig. 1 displacement and traveling time synchronous calibration device hardware connection diagram
In Fig. 1,1 is display, and 2 be motor, and 3 be motor driven, and 4 be host, and 5 be slide unit, and 6 is follow module, and 7 be cunning
Rail, 8 be lead screw, and 9 be rotary encoder, and 10 be bracket.The present invention can work as shown in Figure 1 (as shown to be and puts vertically
Set), the displacement calibration for carrying out horizontal direction can also be rotated by 90 °.
Fig. 2 follows module first structure
In Fig. 2,6-1-1 is connector, and to connect slide unit and 6-1-2,6-1-2 is pressure detector.
Fig. 3 follows the second structure of module
In Fig. 3,6-2-1 is connector, and to connect slide unit and 6-2-2,6-2-3,6-2-2 and 6-2-3 are pressure detecting
Device.
Fig. 4 follows module third structure
In Fig. 4,6-3-2 is length-adjustable connector, can be fixed on slide unit, and 6-3-1 and 6-3-3 are connector, can
Fixed 6-3-4 and 6-3-5,6-3-4 and 6-3-5 is pressure detector.
The technical solution flow chart of Fig. 5 displacement and traveling time synchronous calibration device
The technical solution flow chart of Fig. 6 specific example 1
The technical solution flow chart of Fig. 7 specific example 2
Specific embodiment
It is of the present invention displacement and traveling time synchronous calibration device mainly by measurement host, motor, lead screw, slide unit, with
It is formed with the part such as module, hardware connection figure is as shown in Figure 1.
Fig. 1 displacement and traveling time synchronous calibration device hardware connection diagram
In Fig. 1,1 is display, and 2 be motor, and 3 be motor driven, and 4 be host, and 5 be slide unit, and 6 is follow module, and 7 be cunning
Rail, 8 be lead screw, and 9 be rotary encoder, and 10 be bracket.The present invention can work as shown in Figure 1, can also be rotated by 90 ° progress
The displacement of vertical direction is calibrated.
Fixed heel is placed on lead screw with module, slide unit on slide unit, and lead screw is arranged on the slide rail, and rotary encoder setting exists
The other end of lead screw is arranged in one end of lead screw, motor;Sliding rail is arranged on bracket;Host connection follow module, motor driven,
Rotary encoder and display.
Wherein, 6 module is followed to share 3 kinds of structures, adaptation is different by school instrument, and structure is respectively such as Fig. 2, Fig. 3, Fig. 4 institute
Show.
The technical solution flow chart of displacement of the present invention and traveling time synchronous calibration device is as shown in Figure 5.
The host major function of displacement of the present invention and traveling time synchronous calibration device is to read pressure detector to survey
The pressure value obtained, calculates the moving direction of tested equipment;Start clocking capability when measuring pressure for the first time, realizes synchronous school
It is quasi-;Substitution pressure value, which calculates, follows module rate travel;The due rate travel of module will be followed to be converted into motor rotation ginseng
Number, is rotated by motor driver driving motor;In motor rotation, by reading the rotary speed information of encoder feedback to motor
Rotational parameters are modified.
Displacement of the present invention follows module by connector and pressure detector structure with traveling time synchronous calibration device
At.Following module to may be mounted on slide unit follows slide unit mobile, follows module that can also be overlapped when necessary, such as follow
Module 2 can be superimposed as four sides up and down and carry out pressure detecting.
It is of the present invention displacement and traveling time synchronous calibration device by measurement host, motor, lead screw, slide unit, follow mould
The part such as block forms.
Overall technological scheme realizes that process is as follows:
Calibrating installation is placed according to the direction of displacement (laterally or longitudinally) of tested equipment, and module and tested equipment will be followed
Movable part connect (pressure detector of module and the movable part of tested equipment is followed to contact).
(1) calibrating installation powers on, device startup self-detection.
(2) start tested equipment, displacement takes place in the movable part of tested equipment.
(3) movable part of equipment is detected to following module to generate pressure, and calibrating installation measures pressure value size and direction.
(4) if measuring pressure for the first time after calibrating installation starting, start the laggard scanning frequency degree of timing and calculate, it is on the contrary then direct
Carry out speed calculating.
(5) motor rotational parameters are calculated by speed, is operated by motor driven driving motor, drive slide unit mobile.
(6) above-mentioned (3)~(5) are repeated, until stopping calibration.
(7) stop calibration, slide unit position zero zero.
(8) displacement and traveling time synchronous calibration device are closed.
1 hardware connection diagram of example, flow chart
The present invention can be used for calibrating the needle penetration of bitumen needle forcemeter, and flow chart is as follows:
1 flow chart of example with reference to shown in Fig. 6,1 technical solution of example realize that process is as follows:
(1) calibrating installation is rotated by 90 ° placement.
(2) calibrating installation startup power on self detection.
(3) module 1 will be followed to be mounted on calibrating installation, and the data line of module will be followed to be connected on host.
(4) adjustment bitumen needle forcemeter makes its needle bottom end and follows the top (i.e. pressure detector upper surface) of module 1
Perpendicular contact.
(5) start calibrating installation calibration.
(6) start bitumen needle forcemeter, bitumen needle forcemeter is started to work.
(7) the pressure detector real-time detection in module is followed to be directed to its pressure applied.If measuring pressure value is 0, when
Front motor motor if in operating condition stops working, and continues to test pressure.
(8) it is not zero if measuring pressure value, and is to measure for the first time, then start calibrating installation clocking capability, if not the
It once measures, is then directly entered in next step.
(9) the due movement speed of module is followed by calculation of pressure.It is wanted according to the vertification regulation of bitumen needle forcemeter
It asks, velocity amplitude, which should meet, makes needle fall time not less than 5 seconds.
(10) rotational parameters that the velocity amplitude being calculated is resolved into motor, are rotated by motor driven driving motor.
(11) slide unit is moved down according to output parameter.
(12) if slide unit traveling time was less than 5 seconds, above-mentioned (7)-(11) are repeated.
(13) if slide unit traveling time is equal to 5 seconds, displacement at this time and at this time pressure value are recorded.
(14) slide unit continues to be moved downwardly until that pressure value is 0 if pressure value at this time is not 0, if pressure value is 0 at this time
Then stop moving, record time and displacement at this time, is prover time and calibration displacement.
(15) time shown the prover time of calibrating installation record and calibration displacement and bitumen needle forcemeter and position
Shifting amount is compared, and calibration result is obtained by calculation.
Example 2
1) hardware connection figure of embodiment 2, techniqueflow chart
The present invention can be used for calibrating deflection of bridge span instrument calibrating installation, and flow chart is as shown in Figure 7:
2) above-mentioned attached drawing is combined, the detailed realization process of 2 technical solution of embodiment is described.
2 technical solution of example realizes that process is as follows:
(1) present apparatus is rotated by 90 ° placement.
(2) present apparatus startup power on self detection.
(3) module 3 will be followed to be mounted on calibrating installation, and the data line of module will be followed to be connected on host.
(4) connector for following module 3 is adjusted, two pressure detector spacing for following module 3 are adjusted, so that bridge is scratched
The sliding block of degree instrument calibrating installation is embedded into the groove for following module 3, the two contact.
(5) the starting present apparatus starts calibration.
(6) start deflection of bridge span instrument calibrating installation and start to work.
(7) pressure for following the sliding block of the pressure detector real-time detection deflection of bridge span instrument calibrating installation in module to apply it
Power.If measuring pressure value is 0, if current motor is in operating condition motor and stops working, pressure is continued to test.
(8) it is not zero if measuring pressure value, and is to measure for the first time, then start present apparatus clocking capability, if not first
It is secondary to measure, then it is directly entered in next step.
(9) the due rate travel and moving direction of module are followed by calculation of pressure.
(10) rotational parameters that the rate being calculated and moving direction are resolved into motor drive electricity by motor driven
Machine rotation.
(11) slide unit is mobile according to output parameter.
(12) present apparatus records displacement and time in real time.
(13) if not stopping calibrating, above-mentioned (7)-(12) are repeated.
(14) if stopping calibration, the slide unit of the present apparatus stops movement.
(15) obtaining horizontal axis is the curve that the time shaft longitudinal axis is displacement.
(16) curve of acquisition is compared with the moving curve of deflection of bridge span instrument calibrating installation, obtains calibration result.
The present invention realizes the synchronous calibration of displacement and traveling time, ensure that the accurate of calibration result, is a variety of bridges
The calibration of engineering detecting equipment provides technical support.
The present invention has fabulous applicability, can be applied to bitumen needle forcemeter, asphalt softening point instrument, bitumen ductility
The calibration of the various roads and science of bridge building detection device such as instrument, deflection of bridge span instrument.
The present invention can control the movement speed of actively displacement, realize accurate alignment.
See example 1.It is required according to the vertification regulation of bitumen needle forcemeter, velocity amplitude, which should meet, is not less than needle fall time
5 seconds.Therefore artificial control is needed so that the needle of the bitumen needle forcemeter in free falling body state is reduced in verification process originally
Movement speed reaches traveling time 5 seconds.Therefore the present invention is by the control of itself movement speed so that being detected the movement of needle
Speed slows down, and realizes that the movement speed of tested object is controllable, thus reach required in the vertification regulation of bitumen needle forcemeter " under
The time is fallen not less than 5 seconds ", it accurately detects the distance to fall 5 seconds, passes through the distance of fall shown with bitumen needle forcemeter itself
It is compared with the time, to realize the demand of distance of fall in calibration bitumen needle forcemeter 5 seconds.
The present invention can actively adapt to the movement speed being passively displaced, and realize accurate alignment.
See example 2.Unlike example 1, during such equipment Alignment, tested device rate can't be too fast,
Therefore the present invention does not hinder tested object to move, i.e., will not slow down the movement speed of tested object, but follow tested
Object is mobile, and movement speed is consistent with the speed of tested object.The movement speed of deflection of bridge span instrument calibrating installation can't be because
It is affected for the present invention, what the present invention can be precisely consistent follows deflection of bridge span instrument calibrating installation mobile.
The more currently used method of cost of the present invention is cheap.
1. the present invention is calibrated the situation of movement of equipment using pressure detector detection, when pressure detector detects for the first time
Starting timing when to pressure value, the pressure value situation measured by pressure detector, which can calculate, follows module movement speed, and
Mobile follow is carried out using the combination of screw rod and motor.The present invention can accurately synchronous calibration displacement and traveling time, letter
Instrument type needed for having changed calibration.
2. the present invention can control traveling time when being calibrated equipment is passive displacement, to reduce calibration difficulty, improve
Accuracy.
3. the present invention can actively adapt to the movement speed being passively displaced when being calibrated equipment is actively to be displaced.
4. the present invention uses hollow frame structure, allow the invention to be suitable for position horizontally and vertically
Move calibration.
Module that 5. the present invention designed follow include it is above-mentioned follow module 1, follow module 2, follow the structures such as module 3, fit
Calibration for unidirectionally moving, moving back and forth, the calibration suitable for external clamping and embedded mobile object.
6. the device that the present invention can be made up of calibration two-dimensional surface displacement and traveling time superposition.
Asphalt Penetration is to indicate the soft or hard degree of pitch and consistency, the ability for resisting failure by shear, is reflected in certain condition
The index of the relative viscosity of lower pitch.According to needle penetration stage division, the detection data of Asphalt Penetration is most important.Pitch needle
In-degree instrument realizes the detection to Asphalt Penetration by definition, provides in vertification regulation JJG (traffic) 067, with standard needle and needle
Connecting rod adds counterbalance mass 100g, 25 DEG C of temperature of control, needle connecting rod release time 5s to be that standard test operating condition carries out calibrating and result
Processing.Cause is at present for Main Measuring Indices needle penetration without measure, therefore existing bitumen needle forcemeter vertification regulation uses and divides
It Yan Zheng not be displaced and the method for traveling time measures needle penetration index, method particularly includes:
Displacement: placing a gauge block as measuring basis on penetrometer base platform, needle connecting rod and benchmark gauge block it
Between be respectively put into five kinds of gauge blocks of 1.00mm, 5.00mm, 10.00mm, 20.00mm, 40.00mm and make by knit stitch connecting rod release button
Needle connecting rod is free to drop down to gauge block, and record display indicating value, repeats three times, to be averaged respectively respectively, calculates maximum allowable
Error.
Traveling time: the error of indication carries out 60s measurement with Stopwatch Calibration instrument, starts timing when starting Stopwatch Calibration instrument simultaneously
System, timekeeping system record the Stopwatch Calibration instrument time when reaching 60s, calculate the error of indication, repeat three times, to take wherein maximum
Value.Needle connecting rod release time electronics Stopwatch Calibration is controlled, starts control button while starting electronic stopclock, arrives needle connecting rod
The time for recording electronic stopclock when release, repeat three times, to be averaged.
Currently, the calibration means for penetrometer mainly use and examine and determine consistent method, the reason is that not finding one
The more reasonable calibration means of kind are accurately calibrated.The study found that using side described in vertification regulation JJG (traffic) 067
Method is unable to satisfy described in vertification regulation and " adds counterbalance mass 100g, 25 DEG C of temperature of control, needle connecting rod to release with standard needle and needle connecting rod
Putting time 5s is that standard test operating condition carries out calibrating and result treatment." requirement, can only will displacement and traveling time school respectively
Standard, there is no the accuracys and synchronism of shift value and traveling time in view of measuring, can not verify vertification regulation itself
Requirement.Meanwhile the above method carries out time calibration using stopwatch, needs " when starting Stopwatch Calibration instrument while to start timing system
System ", there are biggish manual operation errors, and not can guarantee calibration personnel can start timing in starting table second calibrating instrument simultaneously
System.Pointed out in China's relevant criterion, when the selection reaction of 20-39 years old adult (stimulation is presented, it is desirable that subject from
To or hear stimulation to this time interval reacted immediately.) it is under outstanding level condition, value is 0.39 second, is accounted for
5 seconds ratios of fall time of actual requirement are 7.8%, it is clear that general calibration personnel is because manual operation bring error will be remote
Greater than 7.8%, therefore this numerical value will cause large effect to result in calibration.
And review the present invention, invention uses Full-automatic calibration technology, by the mobile beginning of pressure detecting judgement, i.e., due to
Follow the pressure-detecting device of module due to being in contactless state, and gap pole with standard needle needle point position in the initial state
It is small, it can be estimated as, since the standard needle and needle connecting rod of penetrometer add counterbalance mass to be 100g, freely falling no more than 0.2mm
The acceleration of body is 9.8m/s2, calculate known to fall under standard needle and be less than or equal to the time required to module pressure testing to following
0.006s.The study found that the present invention calibration error of time is essentially consisted in follow between module and standard needle there may be
The response time of traveling time needed for slight distance and motor.Paper " response of two-phase hybrid stepping motor and revolving speed
Fluctuation " in demonstrate, in 64 high-subdividing number, the corresponding time of stepper motor is only 0.04s.Obviously, the present invention may deposit
Time calibration error be about 0.046s, account for 5s fall time ratio be 0.9%, much smaller than the 7.8% of original technology,
Calibration error reduces 8 times.Therefore, the present invention has preferable synchronism, can satisfy actual demand, and it is accurate to improve calibration
Degree reduces human error interference.
Highway transportation provides very high requirement to the structural behaviour of bridge and using quality, in order to examine newly building bridge
Quality, it is ensured that bridge security needs to carry out health monitoring to bridge under normal circumstances, wherein it is essential that deflection of bridge span is supervised
It surveys.Photo-electric deflection of bridge span instrument is generallyd use in bridge deflection monitoring and detection, therefore to the school of photo-electric deflection of bridge span instrument
Standard is related to the accuracy and reliability of bridge deflection monitoring.The prior art devises a kind of mobile device to reappear the position of bridge
It moves, and for the calibration of displacement, grating scale is generallyd use at present or laser interferometer carries out: displacement calibration is carried out using grating scale
When, need to design the mobile terminal that the read head of grating scale is fixed on tested equipment by corresponding fixture, while making the main scale of grating scale
It is consistent with moving direction, need to determine the consistency in direction using devices such as laser interferometer, and the purchase of laser interferometer at
This is higher, what not all mechanism can be bought, therefore carries out displacement calibration and infeasible using grating scale.It is dry using laser
Interferometer carries out the mobile terminal for needing for microscope group to be mounted on fixing end and tested equipment when displacement calibration, passes through the change of mirror group distance
Change to measure displacement, this scheme proposes requirement to the installation of microscope group, needs individually designed link block, and laser is dry
Interferometer higher cost is not suitable for generally using, is unfavorable for the development of calibration.
The calibration of displacement has been only taken into account to the calibration of deflection of bridge span reproducing apparatus at present, and there is no effective to the time
Means carry out, and error existing for the mode of traditional manual time-keeping proved above.
Claims (2)
1. it is a kind of displacement and traveling time synchronous calibration device, it is characterised in that: including be display, motor, motor driven, lead
Machine, slide unit follow module, sliding rail, lead screw, rotary encoder, bracket;
Fixed heel is placed on lead screw with module, slide unit on slide unit, and lead screw is arranged on the slide rail, and rotary encoder is arranged in lead screw
One end, the other end of lead screw is arranged in motor;Sliding rail is arranged on bracket;Host connection follows module, motor driven, rotation
Encoder and display;
Being chosen according to different tested equipment different follows module specific as follows: when the movement of tested equipment is unidirectional movement
When, it may be selected first and follow module, when the movement of tested equipment is reciprocating type mobile, select second to follow module or third
Follow module;Wherein, it second follows module application to be equipped with groove structure in movable part and there is the tested equipment moved back and forth,
Second follows module to be placed in groove structure, and third follows structure of the module for movable part cube, which puts
In the frame that two thirds follow module to surround;2 second follow module or third that module composition is followed to be applied to up and down
The tested equipment moved left and right, such as certain deflection of bridge span instrument assay calibrations that can reappear horizontal and vertical vibration simultaneously
Device;
First to follow module be exactly that connector side has pressure detector;
Second to follow module be exactly that connector two sides have pressure detector;
It is exactly that connector is two horizontal lines and surrounds with the line of horizontal line that third, which follows module,Shape, mutually
There is pressure detector in parallel two inside of two lines;
Calibrating installation is placed, and the pressure detector of module and the movable part of tested equipment will be followed to contact;When tested equipment
Direction of displacement be horizontal direction, be placed as being horizontally arranged;When the direction of displacement of tested equipment is vertical direction, it is placed as
Vertical direction is placed.
2. the method for application device as described in claim 1, it is characterised in that:
(1) calibrating installation powers on, device startup self-detection;
(2) start tested equipment, displacement takes place in the movable part of tested equipment;
(3) movable part of equipment is detected to following module to generate pressure, and calibrating installation measures pressure value size and direction;
(4) if measuring pressure for the first time after calibrating installation starting, start the laggard scanning frequency degree of timing and calculate, on the contrary then directly progress
Speed calculates;
(5) motor rotational parameters are calculated by speed, is operated by motor driven driving motor, drive slide unit mobile;
(6) above-mentioned (3)~(5) are repeated, until stopping calibration;
(7) stop calibration, slide unit position zero;
(8) displacement and traveling time synchronous calibration device are closed.
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CN106895953B (en) * | 2017-01-25 | 2019-04-12 | 浙江大学 | The method for synchronizing time of a variety of measuring instruments in dam break experiment |
CN107462160B (en) * | 2017-06-15 | 2023-11-17 | 交通运输部公路科学研究所 | Method and device for calibrating image displacement measuring instrument |
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