CN106872106A - Suitable for the thrust balancing device of sloping platform Continuous Compensation - Google Patents
Suitable for the thrust balancing device of sloping platform Continuous Compensation Download PDFInfo
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- CN106872106A CN106872106A CN201710234930.7A CN201710234930A CN106872106A CN 106872106 A CN106872106 A CN 106872106A CN 201710234930 A CN201710234930 A CN 201710234930A CN 106872106 A CN106872106 A CN 106872106A
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- 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 abstract description 37
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 11
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Testing Of Balance (AREA)
Abstract
The invention discloses a kind of thrust balancing device suitable for sloping platform Continuous Compensation, the inclining test platform of instrument is learned with being related to.The present apparatus includes load support structure and balanced controls；Load support structure includes load axle（1）, axle sleeve（2）Bar is guided with load（3）；Balanced controls include guide rod transverse axis（4）, column transverse axis（5）, column（6）, lateral balance lever（7）, balancing weight（8）, counterweight locating rack（9）, counterweight locating piece（10）, adjusting screw rod（11）, counterweight adjuster（12）, pedestal（13）And level ground（14）.The present apparatus can be suitably used for the dynamic force that the static force that counterbalancing tiit platform load quality causes and quality of loads vibration cause；The big quality load of balancing weight counterbalancing tiit platform of small quality；Compensation point is set to can be placed in any space of platform；Can many thrust balancing device parallel operations；In same gravitational field, remove the different influence in absolute gravity value various regions from.
Description
Technical field
It is the present invention relates to the inclining test platform of ground instrument more particularly to a kind of suitable for sloping platform Continuous Compensation
Thrust balancing device.
Background technology
In ground instrument field, ground tilt measurement instrument test technology is a problem for focus.At present, inclined with existing
Sloping platform measuring technology is difficult to trace to the source, it is impossible to complete detection and the calibration operation of instrument very well.In order that the observation number of its output
According to continuous-stable, accurate, before instrument comes into operation, it is necessary to which its lattice value is calibrated, produced using inclining test platform micro-
Deformation is inclined to simulate actual miniature deformation.
The tiltmeter test platform of development of new helps to meet tracing to the source for standard requirement, and reality is carried out to tested dipmeter
Test the taste of room, static and dynamic to test, there is provided the correction and standard uncertainty of tested instrument, be conducive to seismic industry
The calibration of unified tiltmeter device, factory testing, the technical regulation of operation detection, it is ensured that the confidence level of test data, make to be tested
The actual measurement data of instrument turns into useful historical summary and is saved.
Because sloping platform is by 3 dot points, wherein 2 points constitute a rotating shaft, the 3rd point A is used to determine flat surface
Tilt quantity, the stress can be divided into two parts：The static force that platform and quality of loads cause；Draw platform and quality of loads vibration
The dynamic force for rising.The power that lifting declines during to vibrate actuator is the same, it is necessary to one can balance the flat of static force in vibration
Weighing apparatus mechanism.
The content of the invention
The purpose of the present invention is that a kind of thrust balancing device suitable for sloping platform Continuous Compensation of offer, makes thereon
When the sloping platform of side vibrates, the requirement of the static force that its platform load quality causes ensure that the load arm of force and counterweight forces
Arm ratio coefficient is constant.
The object of the present invention is achieved like this：
When single assembly balancing force is less than load, can multiple devices it is used in parallel, this case is with two force equalizers works in parallel
Make；Thrust balancing device has the ability for continuously adjusting compensation rate, the thrust balancing device load arm of force and counterweight forces arm ratio during work
Coefficient is constant, it is ensured that keep compensation rate constant in platform surface vibration.It is of the present invention suitable for sloping platform Continuous Compensation
Thrust balancing device ensure that sloping platform successive dynamic measuring.
Specifically, the present apparatus includes load support structure and balanced controls；
Load support structure includes load axle, axle sleeve and load guiding bar；
Balanced controls include guide rod transverse axis, column transverse axis, column, lateral balance lever, balancing weight, counterweight locating rack 9, with reorientation
Block, adjusting screw rod, counterweight adjuster, pedestal and level ground；
Its position and annexation are：
Pedestal is arranged on level ground；
In location hole on the left of the lower end insertion pedestal of load guiding bar, load guides the upper end mounting sleeve of bar, axle sleeve upper end
Installed load axle；
Load guiding bar connects the left end of lateral balance lever by guide rod transverse axis；
Column is arranged on the pedestal on the right side of load guiding bar, and column and lateral balance lever are connected by column transverse axis；
Right side on pedestal, from right to left, is disposed with counterweight adjuster and counterweight locating piece；
Adjusting screw rod is installed in counterweight locating piece side, in counterweight locating rack lower section insertion counterweight locating piece, counterweight locating rack
Balancing weight is installed in top, in lateral balance lever insertion balancing weight.
Compared with prior art, the present invention has following advantages and good effect：
1. the static force that counterbalancing tiit platform load quality causes and the dynamic force that quality of loads vibration causes be can be suitably used for；
2. the big quality load of balancing weight counterbalancing tiit platform of small quality；
3. compensation point is made to can be placed in any space of platform；
4. can many thrust balancing device parallel operations；
5. in same gravitational field, the different influence in absolute gravity value various regions is removed from.
Brief description of the drawings
Fig. 1 is the structural representation of the present apparatus（It is three-dimensional）；
Fig. 2 is the structural representation of the present apparatus（Main view）；
Fig. 3 is the mechanics explanatory diagram of the present apparatus；
Fig. 4 is the dual force bascule parallel configurations schematic diagram of the embodiment of the present invention.
In figure：
I-the 1 thrust balancing device；
II-the 2 thrust balancing device；
1-load axle；
2-axle sleeve hole；
3-load guides bar；
4-guide rod transverse axis；
5-column transverse axis；
6-column；
7-lateral balance lever；
8-balancing weight；
9-counterweight locating rack；
10-counterweight locating piece；
11-adjusting screw rod；
12-counterweight adjuster；
13-pedestal；
14-level ground.
Specific embodiment
Describe in detail with reference to the accompanying drawings and examples：
First, it is overall
Such as Fig. 1, the present apparatus includes load support structure and balanced controls；
Load support structure includes load axle 1, axle sleeve 2 and load guiding bar 3；
Balanced controls include guide rod transverse axis 4, column transverse axis 5, column 6, lateral balance lever 7, balancing weight 8, counterweight locating rack 9, match somebody with somebody
Reorientation block 10, adjusting screw rod 11, counterweight adjuster 12, pedestal 13 and level ground 14；
Its position and annexation are：
Pedestal 13 is arranged on level ground 14；
In the location hole in the left side of lower end insertion pedestal 13 of load guiding bar 3, load guides the upper end mounting sleeve 2 of bar 3, axle sleeve
2 upper end installed load axles 1；
Load guiding bar 3 connects the left end of lateral balance lever 7 by guide rod transverse axis 4；
Column 6 is arranged on the pedestal 13 on the right side of load guiding bar 3, and column 6 and lateral balance lever 7 are connected by column transverse axis 5；
Right side on pedestal 13, from right to left, is disposed with counterweight adjuster 12 and counterweight locating piece 10；
Adjusting screw rod 11 is installed in the side of counterweight locating piece 10, the lower section of counterweight locating rack 9 is inserted in counterweight locating piece 10, counterweight
Balancing weight 8 is installed in the top of locating rack 9, in the insertion balancing weight 8 of lateral balance lever 7.
2nd, functional part
01）Load axle 1
Load axle 1 is a kind of round bar long of horizontal positioned（Y-direction）；
Its function is connecting bushing 2, in many thrust balancing device parallel operations, can connect and lock many thrust balancing devices
Axle sleeve 2.
02）Axle sleeve 2
Axle sleeve 2 is the cylinder that a kind of its lower end is provided with boss, its upper end be provided with level to（Y-direction）It is adapted to load axle 1
Sliding eye.
Its working mechanism is：
Because the upper end of axle sleeve 2 is provided that a sliding eye, load axle 1 can make payload segment in the upper end Small-angle Rotation of axle sleeve 2
In slidably state, when the load axle 1 from multiple thrust balancing devices is coaxial, just enable many parallel connections of this thrust balancing device
Work.
Its function is subject to load, by the load transmission of load axle 1 to load guiding bar 3.
03）Load guides bar 3；
Load guiding bar 3 be it is a kind of it is vertical to stock, plain radial bearing is cased with thereon；
The top of load guiding bar 3 is connected with axle sleeve 2, in the location hole on the bottom insertion pedestal 13 of load guiding bar 3.
Its working mechanism is：
Load guides bar 3 and plain radial bearing coaxially concentric, and bar 3 is guided by load, load axle 1 can be applied into axle sleeve 2
On loading force vertical transmission to the lower section optional position of load axle 1；Location hole on the bottom insertion pedestal 13 of load guiding bar 3
In, make load guide bar 3 lower in vertical direction can move, that is, ensure that load torque arm length is constant.
Its function is to transmit the load of load axle 1 to the underface of load axle 1, i.e. guide rod transverse axis 4.
04）Guide rod transverse axis 4
Guide rod transverse axis 4 is a kind of short round bar of horizontal positioned（Y-direction）；
Insertion lateral balance lever 7 left end of guide rod transverse axis 4 slides laterally hole（Y-direction）It is interior, the connection load guiding bar of guide rod transverse axis 4
3 and the left end of lateral balance lever 7.
Its function is lateral balance lever 7 is rotated in the axle center face of load guiding bar 3 around guide rod transverse axis 4, keeps horizontal
To the direction of motion that balancing pole 7 is fixed.
05）Column transverse axis 5
Column transverse axis 5 is a kind of short round bar of horizontal positioned（Y-direction）；
The insertion column 6 of column transverse axis 5 slides laterally hole（Y-direction）It is interior.
Its function is to ensure that lateral balance lever 7 can be rotated around column transverse axis 5.
06）Column 6
Column 6 is a kind of cylinder being vertically disposed in the leghole of pedestal 13, its level to（Y-direction）It is provided with slip through hole
Coordinate with column transverse axis 5.
Its working mechanism is：
Column transverse axis 5 can be rotated in the upper end of column 6, and the lateral balance lever 7 installed in column transverse axis 5 can be rotated in the upper end of column 6；
Its function is, as the fulcrum of balanced controls, to support lateral balance lever 7.
07）Lateral balance lever 7
Lateral balance lever 7 is a kind of round bar long of horizontal positioned（X-direction）；
The left end of lateral balance lever 7 coordinates with guide rod transverse axis 4, the middle part of lateral balance lever 7 and the column transverse axis in the upper end of column 6
5 coordinate, and 7 right-hand members and the balancing weight 8 of lateral balance lever coordinate.
Its function is as the lever of balanced controls, the load and balancing weight 8 of balancing load guiding bar 3.
08）Balancing weight 8
Balancing weight 8 is a kind of solid square metal block, the middle setting of balancing weight 8 have X to two through holes of Y-direction, two through holes
By the barycenter of balancing weight 8；
Balancing weight 8 is enclosed within the right side of lateral balance lever 7 by X to through hole, Y-direction through hole and the top of counterweight locating rack 9 on balancing weight 8
Support be connected；Balancing weight 8 can be in the top of counterweight locating rack 9 on balancing weight 8 Y-direction through hole Small-angle Rotation.
Its working mechanism is：
X on balancing weight 8 is enclosed within determination balanced controls counterweight torque arm length on lateral balance lever 7 to through hole；
Its function is to determine balanced controls counterweight torque arm length, and ensures the torque arm length of operationally balanced controls balancing weight 8
It is constant.
09）Counterweight locating rack 9
A kind of support of Y types of counterweight locating rack 9, lower end is that cylinder insertion is arranged in the counterweight locating piece 10 of pedestal, and upper end is used
In installation balancing weight 8.
Its working mechanism is：
, installed in the counterweight locating piece 10 of pedestal, counterweight locating piece 10 is perpendicular to the face of pedestal 13 for the insertion of counterweight locating rack 9, it is ensured that
When lateral balance lever 7 around column transverse axis 5 when rotating, the barycenter of balancing weight 8 moves up and down, the barycenter of balancing weight 8 and lateral balance lever 7
The distance of center of rotation is constant, i.e. the torque arm length of the balancing weight 8 of dynamic balance mechanism is constant.
Its function is fixed weight locating piece 10 in the position of X-direction, and locating piece 10 can lower motion in vertical direction.
10）Counterweight locating piece 10
Counterweight locating piece 10 is a kind of square slider on pedestal 13；Be provided with counterweight locating piece 10 with reorientation
The vertical direction that the lower end round bar of frame 9 coordinates slides through hole；
Counterweight locating piece 10 is perpendicular to the upper surface of pedestal 13.
Its working mechanism is：
After the position of counterweight locating piece 10 being regulated with adjusting screw rod 11, the lock screw on locking counterweight locating piece 10, counterweight
The balancing weight 8 of the connection of locating rack 9 lower can only be moved in vertical direction, make the load arm of force for having set and counterweight forces arm ratio
Coefficient keeps constant.
Its function is ensured when lateral balance lever 7 around column transverse axis 5 when rotating, and the barycenter of balancing weight 8 moves up and down, counterweight
The barycenter of block 8 is constant with the distance of center of rotation, i.e. the torque arm length of dynamic balance mechanism balancing weight 8 is constant.
11）Adjusting screw rod 11
Adjusting screw rod 11 is a standard component；
Adjusting screw rod 11 is arranged on the side of counterweight locating piece 10；
Its function is 10 position on pedestal 13 of regulation fixed weight locating piece.
12）Counterweight adjuster 12
Counterweight adjuster 12 is a kind of square slider；
Counterweight adjuster 12 be arranged on pedestal 13 on, can on the face of pedestal 13 X to slip.
Its working mechanism is：
It is smaller value by the adjustment work condition loads arm of force and counterweight forces arm ratio coefficient, and uses many thrust balancing devices
Operational version in parallel, can use the big quality load of counterbalancing tiit platform of balancing weight 8 of small quality；Due to the work in same gravitational field
Make, offset is unrelated with the change of gravity value.
Its function is regulation counterweight locating piece 10 in the horizontal direction of pedestal 13（X to）Position.
13）Pedestal 13
Pedestal 13 is a kind of metal plate, and the left side is provided with the excitation equivalence hole of vertical direction and load guiding bar 3 coordinates, pedestal
13 middle parts are provided with leghole for installing column 6, and the right is provided with guide rail and coordinates with counterweight locating piece 10.
Its working mechanism is：
The leghole of pedestal 13 is exactly balanced controls load torque arm length to the distance in excitation equivalence hole, and the leghole of pedestal 13 is arrived
The distance of the counterweight locating piece 10 after regulating is exactly counterweight torque arm length.
Its function is that other parts are fixed in support, it is ensured that present apparatus work makes the load arm of force and counterweight forces arm ratio coefficient
It is constant.
14）Level ground 14
Level ground 14 is required work foundation pier of testing or work.
3rd, the operation principle of the present apparatus：
If Fig. 1,2,3, Fig. 3 are the mechanics explanatory diagrams of the present apparatus, OA is the Long baselines of the table top of inclining test platform, if：OA=L=
1000mm, quality of loads is by O axles and A dot points；B is balancing weight application point, and when sloping platform is inclined, point A is with radius L around O axles
Point R1 is turned to, point B turns to B1, there is OA=OR1=OR2=L, if inclination angle ∠ R1OA=α, range is ± α；Draw straight by point A
Line AA1 ⊥ OA, because A1 points are on AA1 lines, so the point in supporting platform is slid onto A1 by R1；But, due to α angles very
Small, R1 and A1 can be approximated to be a point；R2 and A2 can also be approximately a point.
Guide bar 3 coaxial with axle sleeve 2 concentric by load, load guiding bar 3 bottom is arranged on the excitation equivalence of pedestal 13
In hole, two axles are concentric；Load guiding bar 3 moves down the stress point of payload segment, i.e. balanced line AB is parallel to move down into line A0B0, then
A1A2 moves down into A3A4, and B2B1 moves down into B4B3；Then there is CC0=AA0, thrust balancing device can move down into working face lower section.
C0 points are the central points of this thrust balancing device column transverse axis 5, and B0 points are the mass centres of balancing weight 8, and A0 points are power
The central point of bascule load axle 1；K is the load arm of force and counterweight forces arm ratio coefficient k=AC/BC, due to AC（Loading force
Arm）It has been fixed that, adjusted BC（The balancing weight arm of force）Length meets the size of balancing force.
As regulation BC（The balancing weight arm of force）After length, locking counterweight locating piece 10 and counterweight adjuster 12 each install lock
Tight screw, it is ensured that the load arm of force is constant with counterweight forces arm ratio coefficient k=AC/BC in working order.It is of the present invention to be applicable
Sloping platform successive dynamic measuring is ensure that in the thrust balancing device of sloping platform Continuous Compensation.
4th, the application process of the present apparatus
Present apparatus effect is most load of counterbalancing tiit platform, when motion exports tilt quantity to sloping platform,
Motion provides smaller power output and can drive sloping platform.Sloping platform lower section is arranged on by by the present apparatus, load is used
The connection sloping platform of axle 1 lower end, the loading force of the counterbalancing tiit platform of balancing weight 8 overwhelming majority is that sloping platform dynamic is continuous to be surveyed
Amount provides support.
1st, separate unit
Such as Fig. 1 and Fig. 2, Fig. 1, Fig. 2 are single thrust balancing device configuration diagrams of the embodiment of the present invention.The hole of axle sleeve 2 is one
Sliding eye, the payload segment for making to act on load axle 1 using the Small-angle Rotation of load axle 1 is in free rotary state.When
When load is little, worked by separate unit thrust balancing device, single balancing weight 8 is used for the load of counterbalancing tiit platform.
2nd, many
If Fig. 1,2,3, Fig. 3 are the dual force bascule parallel configurations schematic diagrames of the embodiment of the present invention.The hole of axle sleeve 2 is a cunning
Dynamic hole, the payload segment for making to act on load axle 1 using the Small-angle Rotation of load axle 1 is in free rotary state, when two
Individual thrust balancing device（1st thrust balancing device I and the 2nd thrust balancing device II）A public load axle 1, just makes this thrust balancing device
Can many parallel operations；The application scheme of this sloping platform is exactly using dual force bascule（1st thrust balancing device I and the 2nd power
Bascule II）Parallel operation, can use two（Or it is multiple）The balancing weight 8 of smaller quality balances larger sloping platform and carries
Load forces.
Claims (4)
1. a kind of thrust balancing device suitable for sloping platform Continuous Compensation, it is characterised in that：
Including load support structure and balanced controls；
Load support structure includes load axle（1）, axle sleeve（2）Bar is guided with load（3）；
Balanced controls include guide rod transverse axis（4）, column transverse axis（5）, column（6）, lateral balance lever（7）, balancing weight（8）, counterweight
Locating rack（9）, counterweight locating piece（10）, adjusting screw rod（11）, counterweight adjuster（12）, pedestal（13）And level ground（14）；
Its position and annexation are：
Pedestal（13）Installed in level ground（14）On；
Load guides bar（3）Lower end insertion pedestal（13）In the location hole in left side, load guiding bar（3）Upper end mounting sleeve
（2）, axle sleeve（2）Upper end installed load axle（1）；
Load guides bar（3）By guide rod transverse axis（4）Connection lateral balance lever（7）Left end；
Column（6）Bar is guided installed in load（3）The pedestal on right side（13）On, by column transverse axis（5）Connection column（6）And horizontal stroke
To balancing pole（7）；
In pedestal（13）On right side, from right to left, be disposed with counterweight adjuster（12）With counterweight locating piece（10）；
In counterweight locating piece（10）Side is provided with adjusting screw rod（11）, counterweight locating rack（9）Insert counterweight locating piece in lower section
（10）In, counterweight locating rack（9）Top is installed by balancing weight（8）, lateral balance lever（7）Insertion balancing weight（8）In.
2. the balancing weight of thrust balancing device described in claim 1（8）, it is characterised in that：
Balancing weight（8）It is a kind of solid square metal block, balancing weight（8）Middle setting have X to two through holes of Y-direction, two
Through hole passes through balancing weight（8）Barycenter；
Balancing weight（8）Lateral balance lever is enclosed within to through hole by X（7）Right side, balancing weight（8）On Y-direction through hole with reorientation
Frame（9）The support of top is connected；Balancing weight（8）Can be in counterweight locating rack（9）Top is around balancing weight（8）On the small angle of Y-direction through hole
Degree is rotated.
3. the pedestal of thrust balancing device described in claim 1 is based on（13）, it is characterised in that：
Pedestal（13）It is a kind of metal plate, the left side is provided with the excitation equivalence hole of vertical direction and load guides bar（3）Coordinate,
Pedestal（13）Middle part is provided with leghole for installing column（6）, the right is provided with guide rail and counterweight locating piece（10）Coordinate.
4. the dual force bascule of thrust balancing device described in claim 1 is based on, it is characterised in that：
In level ground（14）On, the 1st thrust balancing device（Ⅰ）With the 2nd thrust balancing device（Ⅱ）Parallel connection, shares load axle（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234930.7A CN106872106A (en) | 2017-04-12 | 2017-04-12 | Suitable for the thrust balancing device of sloping platform Continuous Compensation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234930.7A CN106872106A (en) | 2017-04-12 | 2017-04-12 | Suitable for the thrust balancing device of sloping platform Continuous Compensation |
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| CN106872106A true CN106872106A (en) | 2017-06-20 |
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| CN201710234930.7A Pending CN106872106A (en) | 2017-04-12 | 2017-04-12 | Suitable for the thrust balancing device of sloping platform Continuous Compensation |
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Cited By (3)
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| CN107340535A (en) * | 2017-06-27 | 2017-11-10 | 中国地震局工程力学研究所 | Two fraction downhole sensor leveling devices |
| CN114441024A (en) * | 2022-01-27 | 2022-05-06 | 中国计量大学 | Compensation method for whole-circle tilting weighing error of double-hole cantilever beam sensor electronic scale |
| CN115683555A (en) * | 2022-09-07 | 2023-02-03 | 武汉恒新动力科技有限公司 | Gravity center self-adaptive adjusting device |
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| 曲景权 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107340535A (en) * | 2017-06-27 | 2017-11-10 | 中国地震局工程力学研究所 | Two fraction downhole sensor leveling devices |
| CN107340535B (en) * | 2017-06-27 | 2023-08-22 | 中国地震局工程力学研究所 | Two-part type underground sensor horizontal adjusting device |
| CN114441024A (en) * | 2022-01-27 | 2022-05-06 | 中国计量大学 | Compensation method for whole-circle tilting weighing error of double-hole cantilever beam sensor electronic scale |
| CN115683555A (en) * | 2022-09-07 | 2023-02-03 | 武汉恒新动力科技有限公司 | Gravity center self-adaptive adjusting device |
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Application publication date: 20170620 |