CN208888275U - A kind of device for the test of quartz flexible accelerometer long term repeatability - Google Patents
A kind of device for the test of quartz flexible accelerometer long term repeatability Download PDFInfo
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- CN208888275U CN208888275U CN201821527653.5U CN201821527653U CN208888275U CN 208888275 U CN208888275 U CN 208888275U CN 201821527653 U CN201821527653 U CN 201821527653U CN 208888275 U CN208888275 U CN 208888275U
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Abstract
The utility model relates to a kind of devices for the test of quartz flexible accelerometer long term repeatability, including tetrahedron test fixture, transition plates, positioning pin and positioning screw, wherein four faces of tetrahedron test fixture are respectively index face, a transition plates is respectively mounted in the lateral wall of each index face, location hole is produced in tetrahedron test fixture and the corresponding position of transition plates, by inserting positioning pin for tetrahedron test fixture and transition plates locking positioning in positioning hole, the corner location of transition plates passes through positioning screw and is fixedly mounted on tetrahedron test fixture.The present apparatus realizes the test method of the repeatable dismounting of accelerometer in quartz flexible accelerometer long term repeatability test process, effectively increases the utilization rate of test macro, reduces test capital input, improves tooling efficiency.
Description
Technical field
The utility model relates to accelerometers to test technical field, especially a kind of long-term for quartz flexible accelerometer
The device of reperformance test.
Background technique
According to navigation system to the technical requirements of accelerometer Repeatability, long term repeatability survey need to be carried out to accelerometer
Examination.Existing test method is to be fixed on accelerometer on the test fixture connecting with turntable by screw, is wanted according to the time
Ask the retest for carrying out constant duration.It is found through experiment that when accelerometer is repeated to be installed on test fixture, because of installation
The change of position will cause the variation of accelerometer various parameter values and variable quantity has exceeded Repeatability index request.To avoid
The influence of dismounting is repeated, accelerometer is fixed in tooling always in existing test process.This kind of test method is excessive to be occupied
Test resource reduces the utilization rate and working efficiency of test macro.
Utility model content
The purpose of this utility model is that being provided a kind of for quartz flexible acceleration in place of making up the deficiencies in the prior art
The device for counting long term repeatability test can effectively reduce installation when accelerometer repeats to install by precision machined positioning device
The change of position, and then realize that long term repeatability test brief acceleration counts weight the feasibility dismounted again.
The purpose of this utility model is realized by following technological means:
A kind of device for the test of quartz flexible accelerometer long term repeatability, it is characterised in that: surveyed including tetrahedron
Wherein four faces of trial work dress, transition plates, positioning pin and positioning screw, tetrahedron test fixture are respectively index face, each
The lateral wall of index face is respectively mounted a transition plates, produces positioning in tetrahedron test fixture and the corresponding position of transition plates
Hole, by inserting positioning pin for tetrahedron test fixture and transition plates locking positioning, the corner location of transition plates in positioning hole
It is fixedly mounted on tetrahedron test fixture by positioning screw.
Moreover, producing two location holes in each transition plates, which is located at the middle line of transition plates
On, and setting symmetrical above and below, the position of positioning hole and shape of made location hole and transition plates match on tetrahedron test fixture
It closes.
Moreover, producing the mounting hole for installing accelerometer in the transition plates.
The advantages and positive effects of the utility model are as follows:
1, the present apparatus is mainly made of tetrahedron test fixture, transition plates, positioning pin and positioning screw, transition plates and four sides
Body test fixture uses positioning pin locking positioning, and is fastenedly connected using positioning screw, and it is long to realize quartz flexible accelerometer
The test method of the repeatable dismounting of accelerometer, effectively increases the utilization rate of test macro, drops during phase reperformance test
Low test capital input, improves tooling efficiency.
2, the present apparatus tests required technical requirement experiment proves that meeting quartz flexible accelerometer long term repeatability,
It has been applied in actual test work at present.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model device.
Fig. 2 is the sectional view along A-A of utility model device.
Specific embodiment
Embodiment of the utility model will be described in detail below with reference to the attached drawings, it should be noted that the present embodiment is narrative
, it is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of device for the test of quartz flexible accelerometer long term repeatability, including it is detachable and two non-dismountable
Point, detachable part is divided into transition plates 2, positioning pin 3 and positioning screw 4, and non-dismountable part is tetrahedron test fixture 1.On four sides
Wherein four faces of body test fixture are respectively index face (tetra- index faces of A, B, C, D), and transition plates is four, respectively with A, B,
C, D label is distinguished, and each transition plates is corresponding with tetra- index face matchings of A, B, C, D of test fixture respectively, cannot exchange.
A transition plates, specific structure are respectively mounted in the lateral wall of each index face of tetrahedron test fixture are as follows:
Location hole 5 is produced in tetrahedron test fixture and the corresponding position of transition plates, by inserting positioning pin for four in positioning hole
Face body test fixture and transition plates locking positioning.In the present embodiment, two location holes are produced in each transition plates, this two
Location hole is located on the middle line of transition plates, and setting symmetrical above and below, made location hole and transition plates on tetrahedron test fixture
Position of positioning hole and shape match.The corner location of transition plates passes through positioning screw and is fixedly mounted on tetrahedron test work
It loads onto.The mounting hole 6 for installing accelerometer is produced in every piece of above-mentioned transition plates.
The application method of the utility model are as follows:
As shown in Figure 1 and Figure 2, accelerometer is fixed on transition plates position of mounting hole by screw, will install accelerometer
Transition plates is placed in the index face of corresponding test fixture, then positioning pin is inserted into transition plates and test fixture and is determined
Position hole locks transition Board position, is connected and fixed transition plates and test fixture by positioning screw.
Test terminates, and removes positioning screw, and transition plates is separated with test fixture, and the above installation step is repeated when testing again
It is rapid to carry out location and installation.
Claims (3)
1. a kind of device for the test of quartz flexible accelerometer long term repeatability, it is characterised in that: tested including tetrahedron
Wherein four faces of tooling, transition plates, positioning pin and positioning screw, tetrahedron test fixture are respectively index face, in each mark
The lateral wall in note face is respectively mounted a transition plates, produces positioning in tetrahedron test fixture and the corresponding position of transition plates
Hole, by inserting positioning pin for tetrahedron test fixture and transition plates locking positioning, the corner location of transition plates in positioning hole
It is fixedly mounted on tetrahedron test fixture by positioning screw.
2. a kind of device for the test of quartz flexible accelerometer long term repeatability according to claim 1, feature
It is: produces two location holes in each transition plates, which is located on the middle line of transition plates, and up and down
It is symmetrical arranged, made location hole is matched with the position of positioning hole of transition plates and shape on tetrahedron test fixture.
3. a kind of device for the test of quartz flexible accelerometer long term repeatability according to claim 1, feature
It is: produces the mounting hole for installing accelerometer in the transition plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527653.5U CN208888275U (en) | 2018-09-19 | 2018-09-19 | A kind of device for the test of quartz flexible accelerometer long term repeatability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821527653.5U CN208888275U (en) | 2018-09-19 | 2018-09-19 | A kind of device for the test of quartz flexible accelerometer long term repeatability |
Publications (1)
| Publication Number | Publication Date |
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| CN208888275U true CN208888275U (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821527653.5U Active CN208888275U (en) | 2018-09-19 | 2018-09-19 | A kind of device for the test of quartz flexible accelerometer long term repeatability |
Country Status (1)
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| CN (1) | CN208888275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067845A (en) * | 2020-09-04 | 2020-12-11 | 中国船舶重工集团公司第七0七研究所 | Quartz pendulum accelerometer long-term stability testing tool and testing method |
-
2018
- 2018-09-19 CN CN201821527653.5U patent/CN208888275U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067845A (en) * | 2020-09-04 | 2020-12-11 | 中国船舶重工集团公司第七0七研究所 | Quartz pendulum accelerometer long-term stability testing tool and testing method |
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