CN104567934B - Jig for vibration test of fiber-optic gyroscope and testing method - Google Patents
Jig for vibration test of fiber-optic gyroscope and testing method Download PDFInfo
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- CN104567934B CN104567934B CN201510032789.3A CN201510032789A CN104567934B CN 104567934 B CN104567934 B CN 104567934B CN 201510032789 A CN201510032789 A CN 201510032789A CN 104567934 B CN104567934 B CN 104567934B
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- 238000012360 testing method Methods 0.000 title claims abstract description 87
- 238000009434 installation Methods 0.000 claims abstract description 41
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 36
- 239000013307 optical fiber Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract 3
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
The invention discloses a jig for a vibration test of a fiber-optic gyroscope and a testing method of the vibration test. The jig comprises a jig body, wherein two vertical planes of the jig are respectively provided with a handle; the side opposite to the handle is provided with a jig fixing substrate, and other sides are respectively provided with a gyroscope substrate and a gyroscope installation location mark; two adjacent vertical sides on the jig body are regarded as installation fixing sides, and other sides are provided with the gyroscope through the gyroscope substrate; during vibration test, the two installation fixing sides are respectively regarded as installation bases to be twice tested; after second round of test is executed, the jig rotates by 90 degrees in a horizontal plane along an anticlockwise or clockwise direction, and then third round of test is executed. The jig is specifically designed, so that the gyroscope can be fixed to the jig without using changeover measures, the installing position of the gyroscope on the jig is constant, the stability of the gyroscope is increased, the gyroscope can not loosen during vibration and the test accuracy is improved.
Description
Technical field
The invention belongs to optical fibre gyro and the technical field of measurement and test of Fibre Optical Sensor, more particularly in optical fibre gyro environmental test
A kind of frock that vibration test is used.
Background technology
At present, middle low-precision optical fiber gyro strap-down inertial measurement system has moved towards the practical stage from laboratory, but high
Precision optical fiber gyro strap-down inertial measurement systematic difference is still limited by the influence of environmental condition, especially vibration condition.From reason
For upper, compared with mechanical gyro, the structure of whole solid state of optical fibre gyro, without spin movable part the features such as determine that it has
Shock resistance, anti-vibration, high reliability.But fiber optic loop STRESS VARIATION, device that in actual applications, shock and vibration causes
Part tail optical fiber vibrates and mesomerism may all bring gyro output error, causes the dynamic error increasing of gyro under vibrational state
Plus, so as to cause the reduction of fibre optic gyroscope precision.
Frock used by existing optical fibre gyro vibration test is the combination with pinboard between frock main body and gyro
Structure.This tool structure has several drawbacks in that：1st, need the screw of fastening many, thus cause screw fasten not enough probability compared with
Greatly；2nd, frock movement is inconvenient, and operation is unfavorable for when gyroscopic vibration direction is changed；3rd, gyro riding position is more random, top
Spiral shell is laid orientation and is not known, and does not have retrospective in follow-up data inquiry.
The content of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of vibration test recruitment for optical fibre gyro in environmental test
Dress and test method, make to ensure that gyro data uniformity and retrospective in gyroscope vibration-testing, are used to improve work effect
Rate and the stability and reliability of increase experiment.
The present invention is mainly achieved through the following technical solutions：One kind is directed to optical fibre gyro vibration test frock, bag
A frock body is included, handle, gyro pedestal, gyro fixing screw hole, frock fixing screw hole, work are provided with frock body
Dress fixed pedestal, gyro installation azimuth mark；Two adjacent faces vertical each other are taken on frock body to install stationary plane,
Its lap installs gyro by gyro pedestal；Stationary plane is installed as installation foundation is surveyed twice with two respectively during vibration-testing
Examination；The gyro installation azimuth mark is set beside gyro pedestal.
Further, the frock body is square build or cuboid-type, and it is vertical to install adjacent two face of gyro
Face directly, two relative faces are parallel surface.
Further, the handle has two groups, is respectively arranged at two opposites for installing stationary plane.
Further, the gyro pedestal, is the shape according to gyro base, based on frock body, in frock sheet
The square-outside and round-inside opened up out on body is dispersed with the gyro on the edge of the caulking groove and fixes into the caulking groove of domatic gradual transition
Screw hole, the hole position of the gyro fixing screw hole is corresponding with the fixing hole hole position of the gyro installed.
Further, the caulking groove meets following installation dimension condition with gyro：
Y=y
d1+d2=D
Wherein：Y is the pitch-row of gyro fixing screw hole in frock, and y is the fixing hole on gyro base away from d1It is gyro bottom
Seat thickness, d2It is gyro outer cover thickness, D is the depth of gyro pedestal.
Further, the outward flange of the gyro pedestal is provided with gyro installation azimuth mark, the gyro installation side
Bit flag is in same direction with the data line interface of gyro.
Further, it is described two that the rib that stationary plane is mutually connected is installed, it is the chamfering rib with chamfering.
Further, from described installation stationary plane to its opposite, the frock fixing screw hole of several break-through is offered,
The fixing screw hole is shoulder hole.
Further, in the position where frock fixing screw hole on the installation stationary plane, it is provided with frock fixed base
Seat, the same break-through frock fixed pedestal of frock fixing screw hole.
The present invention also provides a kind of method tested using the frock, and its step is：
1) gyroscope is separately fixed at any orthogonal face for removing and installing outside stationary plane using screw first
On, data wire from gyro top cover out, according to cabling at gyro installation azimuth mark；
2) it is contact surface according to one of stationary plane of installing, frock is installed on workbench, with screw from frock top
Portion pierces into tightens fixation；
3) after having fixed gyroscope and frock, first round vibration-testing is started；
4) after completing first round vibration-testing, the screw that frock is connected with workbench is unloaded, gyro is utilized without unloading
Frock is overturn 90 ° by handle, another frock stationary plane is contacted with work top, is then fixed again, starts the second wheel vibration
Test；
5) after completing the second wheel vibration-testing, the screw that frock is connected with workbench is unloaded, frock is existed using handle
In horizontal plane along 90 ° counterclockwise or rotationally clockwise after, then fix, then start third round vibration-testing.
In first round test and the second wheel test, Orientation differences test of the gyroscope in vertical plane is completed, the 3rd
Gyroscope Orientation differences test in the horizontal plane is completed in wheel test
The present invention compared to existing frock protrude advantage be：
1st, the peculiar design that the present invention passes through the gyro installation pedestal to frock, just can be top without using switching measure
Spiral shell is fixed in frock oneself so that gyroscope installation site in frock can be fixed, and increased the steadiness of gyro, it is to avoid
Loosening of the gyro in vibration processes, improves the accuracy of test.
2nd, the present invention can disposably test multiple gyros by the design of multiple mounting surfaces in frock, improve work effect
Rate.
3rd, unified adjustment notch is determined on gyro installation position so that gyro installation orientation is consistent, and ensures axial direction
Unanimously, it is ensured that the uniformity and trackability in test data correspondence gyroscopic vibration direction, this pacifies with gyroscope in existing test
Axial direction not fixing phase ratio is filled, test data is regular and correspondence is guaranteed.
4th, the present invention utilizes tool structure body own characteristic, no longer needs to lay down the spiral shell of fastening gyro in whole test
Nail；In rotary fixture, cambered angle and handle are convenient to provide, great improve production efficiency, and simplifying for manual operation is improved
The uniformity and reliability of test data, and remove pinboard operation, reduce the illusive factor of connection.
5th, in method of testing, be only pull, rotary fixture respectively once, it is possible to while completing all gyro X, Y, Z
The test in upper direction, it is simple to operation.
Other features and advantages of the present invention will in the following description illustrate that the purpose of the present invention and other advantages can
Embody and obtain by specifically noted structure in the specification, claims and accompanying drawing write.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing
In, identical reference symbol represents identical part.
Fig. 1 is frock shaft side figure one, it is seen that the top surface of frock, above and right flank；
Fig. 2 is the structural representation that gyro is installed in frock；
Fig. 3 is frock shaft side figure two, is that 180 degree has been overturn on the basis of Fig. 1；
Fig. 4 is the sectional view of frock fixing screw hole；
Fig. 5 is the frock bearing change figure of first round test and the second wheel test；
Fig. 6 is frock bearing change figure of the second wheel test to third round test.
Specific embodiment
The present invention program is described in detail with reference to the accompanying drawings and examples.Wherein, accompanying drawing constitutes the application one
Part, for supplementary explanation technical solution of the present invention.
The present invention designs a effective vibration work for used by vibration-testing in interferometric fiber optic gyroscope environmental test
The operational procedure of science is filled and sets up, to reduce the influence that ambient vibration is caused to Gyro Precision to greatest extent, and simultaneously
Improve the operating efficiency in testing experiment.
The vibration test frock that the present invention is provided, as shown in figure 1, the frock sheet including a square build or cuboid-type
Body 1, i.e., per all vertical each other hexahedron of two adjacent surfaces.The no electromagnetic shielding requirements of the frock body 1, so can be closed using aluminium
Golden material (2Al2-T4), in order to make the resonant frequency of frock qualified, does not influence gyroscopic vibration, and frock body is solid；Frock
Appearance and size is not strict with, but unsuitable too small, and otherwise resonance can not be up to standard.Test tool based on frock body 1,
Handle 2, gyro pedestal 3, gyro fixing screw hole 4, frock fixing screw hole 5, frock fixed pedestal are provided with frock body 1
6th, gyro installation azimuth mark 7 etc..
The handle 2 has two groups, is respectively arranged on adjacent two faces vertical each other in frock reverses direction, and
And two stationary planes respectively with frock are relative, in such as Fig. 1 on set top surface and front, two groups of setting positions of handle with
Tool pedestal is related to the position of frock upset chamfering.
On six faces of frock body, removing two faces therein is used for outside fixed, and remaining 4 face can set top
Tap bolt seat 3, quantity is not limited, if area is sufficiently large can to set two, area is small, can set one.Gyro pedestal 3 is such as
Shown in figure, according to the shape of gyro, by the thickness of frock body, gyro pedestal 3 is square-outside and round-inside domatic gradual transition
Caulking groove, caulking groove is the place for placing gyro, and its outside dimension is similar with gyro, and bigger than gyro appearance and size, inner circle is to be trapped into
The part gone, is to ensure that gyro reference face keeps a horizontal plane.4 gyros are dispersed with the edge of caulking groove to fix
Screw hole 4, this 4 positions of screw hole are consistent with the position of mounting hole on the gyro installed, and gyro is fixed by 4 screws
On installation position, gyro is no longer installed repeatedly in whole experiment.The pedestal of square-outside and round-inside caulking groove shape and the base shape phase of gyro
Match somebody with somebody, gyro can so be firmly fitted on flute profile pedestal, increase the stability of gyro, as shown in Figure 1.
In embodiment, the size of the caulking groove of square-outside and round-inside domatic gradual transition is that the outer square length of side is 130 × 130mm,
The depth of domatic gradual transition is 9.5mm, and away from being 94mm, the square length of side is 4 fixing holes of screw outside gyro joined together
120 × 120mm, gyro base thickness is 7mm, and outer cover wall thickness is 2.5mm, and fixing hole is away from being 94mm.
Thus the gyro pedestal in vibration tool meets following installation dimension condition with gyro：
Y=y
d1+d2=D
Wherein：Y is the pitch-row of gyro fixing screw hole 4 in frock, and y is the fixing hole on gyro base away from d1It is gyro
Base thickness, d2It is gyro outer cover thickness, D is the depth of gyro pedestal 3.
In addition, on each side of gyro pedestal 3, a gyro installation azimuth mark 7 is provided with, such as the caulking groove edge in figure
A small corner block.This mark determines the installation position of gyro, and it is in same direction with the data line interface 9 of gyro
On, as long as the data line interface 9 of gyro is towards the direction of gyro installation azimuth mark 7 during installation, the orientation of gyro is just true at last
Fixed, gyro installation is as shown in Figure 2.Orientation is consistent when mounted for each gyro, so contributes to each in test process
The uniformity of individual gyro test.Triangular orientation mark is taken in embodiment, other modes can also be taken in practice.Gyro installation side
Bit flag 7 is exactly to walk line index in frock, embodies gyroscope test data and the one of each direction of vibration in vibration test
Cause property, because the direction of test gyroscopic vibration is certain every time, if being fixed according to cabling mode, three vibrations of gyro
Corresponding axial direction is exactly known, and thus data are consistent with direction.If the installation beside each gyro base position
The position of azimuth mark 7 is all consistent, then cause that the installation position of all gyros all achieves uniformity.
Two adjacent vertical planes are used as installation stationary plane, stationary plane a and stationary plane in such as Fig. 3 on selection frock body
b.According to foregoing, the two stationary planes are each relative with one group of handle, such as stationary plane a and plane where first group of handle to oppose
Face, stationary plane b and plane where second group of handle are opposite.When pulling handle, corresponding stationary plane will overturn
Come.
Further, the rib the two stationary planes being mutually connected, is processed into the chamfering rib c with certain chamfering, should fall
Angle can be right angle chamfering, but preferably circular arc chamfering.The benefit for making chamfering rib is can so to avoid being turned in frock
Gouge is caused to workbench during turning, also easily upset, otherwise right-angle surface is easily skidded, circular arc chamfering has rounding certainly
Right transition, the damage to work top can be smaller, and circular arc chamfering R is 10mm.
Be respectively arranged with frock fixing screw hole 5 at four angles on the two stationary planes, fixing hole away from for
176.78mm.All screw holes all break-through opposite faces (face where handle), this is in order to the face where screw from handle (is grasped
Top surface in work) bottom hole is sunk to, then pass through bottom surface and be fastened on workbench.Further say, 4 screws on stationary plane
Position where hole, sets 4 pieces of frock fixed pedestals 6, sets the purpose of pedestal, and one is to avoid frock stationary plane and work top
Directly contact, so as to cause frock to fix surface wear, causes frock uneven surface, and then make test data inaccurate；The opposing party
Face, because the gross area of frock fixed pedestal 6 for installing additional is less than former stationary plane area, thus it is small with the contact area of workbench, this
Sample also reduces frictional resistance in upset, upset is become easy.Frock fixing screw hole 5 passes through the frock fixed pedestal
6.4 screws are pierced into from the top of frock fixing screw hole 5, are then tightened in the screwed hole on workbench, just can be consolidated frock
Due on workbench.Further, the sectional view of frock fixing screw hole 5 is as shown in figure 4, be a shoulder hole, two ends aperture point
It is not：Φ1It is 18mm, length 240mm；Φ2It is 11mm, length 10mm, screw can be sunken in shoulder hole, so can not be used
Screw long, short and small screw also reduces the possibility that screw fractures.
Installing gyro on this basis just can carry out vibration test.Gyro can be all installed in 4 faces, so test every time
With regard to increase gyro quantity as much as possible, making once to test can test the vibration data of multiple gyro axial directions, improve efficiency.
Here is the method for installing gyroscopic vibration experiment：
1) 4 gyroscopes first, are taken to be separately fixed at using the screw of M6 on 4 faces for removing and installing outside stationary plane,
Top surface, front and left and right side such as in figure, data wire from gyro top cover out, according to cabling at triangle mark, triangle mark
Positional distance and angle can specify according to cabling.Because the data cabling of every gyro is all unified technique, such as
Really the gyro installation azimuth mark position on each side of gyro pedestal 3 is consistent, and axial direction of the gyroscope in frock is also united therewith
One.
2) it is contact surface to install stationary plane with one of them according to Fig. 1, and frock is installed on workbench, and 4 are used at 4 angles
Individual M10 screws are pierced into from top tightens fixation.
3) after gyroscope and frock has been fixed, first round vibration-testing can just be started.The test position of first round test
It is exactly the position based on one of installation stationary plane as shown in Figure 1.Different frequency and amplitude are used by shake table
Vibration measure gyro output-index under vibration and working condition.
4) after completing first round vibration-testing, the screw being connected with workbench on 4 angles of frock is unloaded, notes gyro not
With unloading, frock is overturn 90 ° using handle, another frock stationary plane is contacted with work top, that is, will be original
The back side of frock becomes bottom surface, and front becomes top surface, then 4 angles of frock are fixed on work top using M10 screws, just may be used
Vibration-testing is taken turns to start second.
The first round tests and the frock bearing change of the second wheel test is as shown in Figure 5.
5) after completing the second wheel vibration-testing, equivalent to test of the gyro in vertical plane is completed, then by frock 4
The screw at individual angle is unloaded, and utilizes handle by frock in the horizontal plane along the inverse time using frock top surface (front when initial) now
Pin (or clockwise can also) rotates 90 °, then 4 angles of frock are fixed on workbench using M10 screws, just can start the
Three-wheel vibration-testing.
The frock bearing change of the second wheel test to third round test is as shown in Figure 6.
Third round test essence is to complete gyro test in the horizontal plane, after completing third round vibration-testing, 4 tops
The X of spiral shell instrument, Y, Z-direction all have passed through vibration-testing, and the direction of vibration of often wheel test every gyro of correspondence is also fixed.
It is of the invention to it is critical only that rule define installation site of the gyroscope in frock, and gyroscope is fastened directly to
In tool assembly.Designed by unique mechanical outline, just ensure that gyroscope test data and each vibration side in vibration test
To correspondence and uniformity.So as to realize trackability of the gyroscope test data for gyroscopic vibration direction.Frock of the present invention
Not only improve production efficiency, also reduces production cost, it is ensured that the reliability tested every time.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.
Claims (8)
- It is 1. a kind of to be directed to optical fibre gyro vibration test frock, it is characterised in that：Including a frock body (1), handle (2), gyro pedestal (3), gyro fixing screw hole are provided with frock body (1) (4), frock fixing screw hole (5), frock fixed pedestal (6), gyro installation azimuth mark (7)；Two adjacent faces vertical each other are taken on frock body (1) to install stationary plane, its lap passes through gyro pedestal (3) Gyro is installed；Stationary plane is installed as installation foundation is tested twice with two respectively during vibration-testing；On gyro pedestal (3) side, the gyro installation azimuth mark (7) is set；The frock body (1) is solid；Position where frock fixing screw hole (5) on the installation stationary plane, is provided with frock fixed pedestal (6), described Same break-through frock fixed pedestal (6) of frock fixing screw hole (5)；The handle (2) has two groups, is respectively arranged at two opposites for installing stationary plane.
- 2. frock according to claim 1, it is characterised in that：The frock body (1) is square build or cuboid-type, Adjacent two face for installing gyro is vertical plane, and two relative faces are parallel surface.
- 3. frock according to claim 1, it is characterised in that：The gyro pedestal (3), is the shape according to gyro base Shape, based on frock body (1), the square-outside and round-inside opened up out on frock body (1) into domatic gradual transition caulking groove, Be dispersed with the gyro fixing screw hole (4) on the edge of the caulking groove, the hole position of the gyro fixing screw hole (4) with pacified The fixing hole hole position correspondence of the gyro of dress,The caulking groove meets following installation dimension condition with gyro：Y=yd1+d2=DWherein：Y is the pitch-row of gyro fixing screw hole (4) in frock, and y is the fixing hole on gyro base away from d1It is gyro base Thickness, d2It is gyro outer cover thickness, D is the depth of gyro pedestal (3).
- 4. the frock according to claim 1 or 3, it is characterised in that：The outward flange of the gyro pedestal (3) is provided with top Spiral shell installation position mark (7), the gyro installation azimuth mark (7) is in same direction with the data line interface of gyro.
- 5. frock according to claim 1, it is characterised in that：It is described two that the rib that is mutually connected of stationary planes is installed, be with The chamfering rib of chamfering.
- 6. frock according to claim 1 or 5, it is characterised in that：From described installation stationary plane to its opposite, open up There is the frock fixing screw hole (5) of several break-through, the frock fixing screw hole (5) is shoulder hole.
- 7. a kind of method tested using one of claim 1 to 6 frock, it is characterized in that：1) first, gyroscope is separately fixed on any orthogonal face for removing and installing outside stationary plane using screw, Data wire from gyro top cover out, according to cabling at gyro installation azimuth mark；2) it is contact surface according to one of stationary plane of installing, frock is installed on workbench, is worn from frock top with screw Enter to tighten fixation；3) after having fixed gyroscope and frock, first round vibration-testing is started；4) complete first round vibration-testing after, the screw that frock is connected with workbench is unloaded, gyro without unloading, using handle Frock is overturn 90 °, another frock stationary plane is contacted with work top, then fixed again, started second and take turns vibration-testing；5) after completing the second wheel vibration-testing, the screw that frock is connected with workbench is unloaded, using handle by frock in level Along counterclockwise or rotationally clockwise after 90 ° in face, then fix, then start third round vibration-testing.
- 8. test method according to claim 7, it is characterized in that：In first round test and the second wheel test, top is completed Orientation differences test of the spiral shell instrument in vertical plane, gyroscope Orientation differences in the horizontal plane is completed in third round test and is surveyed Examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032789.3A CN104567934B (en) | 2015-01-22 | 2015-01-22 | Jig for vibration test of fiber-optic gyroscope and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032789.3A CN104567934B (en) | 2015-01-22 | 2015-01-22 | Jig for vibration test of fiber-optic gyroscope and testing method |
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| CN104567934A CN104567934A (en) | 2015-04-29 |
| CN104567934B true CN104567934B (en) | 2017-05-24 |
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| CN114166450A (en) * | 2021-10-25 | 2022-03-11 | 河北汉光重工有限责任公司 | Vibration tool and method for improving screening test efficiency of to-be-tested object |
| CN114894188A (en) * | 2022-07-14 | 2022-08-12 | 中国船舶重工集团公司第七0七研究所 | Table body for hemispherical resonator gyroscope inertial navigation system and processing method thereof |
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| US20100284018A1 (en) * | 2009-05-11 | 2010-11-11 | Honeywell International Inc. | Systems and methods for effective relative intensity noise (rin) subtraction in depolarized gyros |
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| CN1821722A (en) * | 2006-03-27 | 2006-08-23 | 北京航空航天大学 | Decoupling detecting device for gyroscope scale factor and input shaft default angle |
| CN101545790A (en) * | 2009-04-27 | 2009-09-30 | 浙江大学 | System for testing rotation and vibration performance of inertia device |
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