CN106853614B - A kind of piezoelectric acceleration sensor piezoelectric system test fixture - Google Patents
A kind of piezoelectric acceleration sensor piezoelectric system test fixture Download PDFInfo
- Publication number
- CN106853614B CN106853614B CN201510905981.9A CN201510905981A CN106853614B CN 106853614 B CN106853614 B CN 106853614B CN 201510905981 A CN201510905981 A CN 201510905981A CN 106853614 B CN106853614 B CN 106853614B
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- China
- Prior art keywords
- piezoelectric
- slot
- fixed disk
- acceleration sensor
- piezoelectric system
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
Abstract
The present invention provides a kind of piezoelectric acceleration sensor piezoelectric system test fixtures, comprising: the installation chassis being fixed on shake table mounting surface；The fixed disk of piezoelectric system is installed；Bindiny mechanism for being slidably mounted on the fixed disk on the installation chassis；Be set to the fixed disk on to be electrically connected the electrode of the piezoelectric system and the wire interface of external test circuitry.Piezoelectric acceleration sensor piezoelectric system test fixture without the mode of fixed installation can be tested using the present invention, and the piezoelectric system of different outer dimensions can be tested.
Description
Technical field
The present invention relates to a kind of piezoelectric acceleration sensor piezoelectric system test fixtures.
Background technique
Piezoelectric acceleration sensor is a kind of sensor for vibrations such as measuring device, objects, is that application range is most wide
Vibration class sensor.Especially for the very high application of the environment temperatures such as Aeronautics and Astronautics, nuclear energy, piezoelectric acceleration
Sensor is irreplaceable selection.
When piezoelectric acceleration sensor assembles, piezoelectric element, mass block, nut etc. are fixed on the base first, formed
Quality-component of piezoelectric conversion system (hereinafter referred to as piezoelectric system) is then assembled into complete piezoelectric acceleration with shell again and passes
Sensor.Piezoelectric acceleration sensor can be tested for the property after assembling, if performance is unqualified, generally dismantle ressemble to
Qualification, the process for dismantling refitting in this way are time-consuming and laborious；Especially when between piezoelectric system and shell assembling mode be welding the case where
When, such as high-temperature piezoelectric acceleration transducer, performance parameter is numerous, and if a performance is unqualified, entire sensor will be judged to
Be set to it is unqualified, but due to metal welding can only be destructive dismantling, can not dismantle and ressemble, can only scrap, this
Sample will cause very big waste, and influence yield rate.
The performance of piezoelectric acceleration sensor is mainly to be determined by piezoelectric system, so if carrying out to piezoelectric system pre-
First performance test, it is qualified to carry out subsequent assembly again, yield rate thus can be improved, reduce manpower and material resources waste.But for
For piezoelectric system, lead and the subsequent detection circuit of output signal can not be directly connected to, and be not easy to detect；Especially without fixation
The piezoelectric system of mounting means can not be arranged on shaking platform at all and realize performance detection.
Summary of the invention
In view of the above problems, technical problem to be solved by the present invention lies in provide one kind to test no fixation
The piezoelectric acceleration sensor piezoelectric system test fixture of mounting means, and the piezoelectricity system of different outer dimensions can be tested
System.
In order to solve the above technical problem, the present invention provides piezoelectric acceleration sensor piezoelectric system test fixture packet
It includes: the installation chassis being fixed on shake table mounting surface；The fixed disk of piezoelectric system is installed；For the fixed disk is removable
The bindiny mechanism being installed on the installation chassis dynamicly；Be set to the fixed disk on to be electrically connected the piezoelectric system
The wire interface of electrode and external test circuitry.
According to the present invention, test fixture of the invention, it is simple and convenient, it can be realized outer to no fixed installation mode and difference
The test of the piezoelectric system of shape size, to improve the production efficiency of piezoelectric acceleration sensor.
Also, in the present invention, being also possible to the bindiny mechanism and including the through slot being set in the installation chassis, pass through
The fixed disk and the sliding bar slided in the through slot and fastening for being fixed on the sliding bar in the through slot
Component.
According to the present invention, sliding bar, which can be used to fixed fixed disk and piezoelectric system, the sliding bar, to slide in through slot, and
Fixed disk is driven to be moved to different positions.
Also, in the present invention, being also possible to the section that the through slot is formed as "convex" shaped.
According to the present invention, sliding and fixation of the sliding bar in the through slot can be conducive to.
Also, in the present invention, being also possible to the fastening member includes the nut in the through slot, the nut
Outer dia and the lower width of the through slot be same as or slightly smaller than the lower width of the through slot.
According to the present invention it is possible to effectively match nut with sliding bar, to fix fixed disk and piezoelectric system.
Also, in the present invention, it is also possible to the through slot and is formed with multiple, and battle array in a ring in the installation chassis
Column arrangement.
According to the present invention, can be conducive to that fixed disk is made to be moved to different positions.
Also, in the present invention, being also possible to the sliding bar and being formed as " T " font, " one " word in " T " font
Type portion is located at outside the fixed disk, and " I " the font portion in " T " font passes through the fixed disk and is located in the through slot.
According to the present invention, can be conducive to fixed disk is installed to installation chassis.
Also, in the present invention, being also possible to the wire interface includes inserting of being connected with the conducting wire of external test circuitry
Needle and the jack for being directly connected to contact pin and being connect with the electrode of the piezoelectric system.
According to the present invention it is possible to which piezoelectric system output signal is transmitted to external test circuitry.
Also, in the present invention, being also possible to the wire interface and being formed as the interface form to match with the conducting wire, institute
It states jack and is formed as cylinder type, and using the structure for splitting slot or necking.
According to the present invention, the lead of piezoelectric system can be affixed directly on wire interface, without welding, be completed directly
It takes out, it is convenient and simple.
Also, in the present invention, the material for being also possible to the fixed disk is the steel of high elastic modulus, the fixed disk
Be formed as being made of the monolithic of three pieces annular array, three pieces monolithic forms a closed annular.
According to the present invention, which is widely portable to the piezoelectric system of various outer diameter size (in a certain range), nothing
Various sizes of fixed disk need to be replaced according to piezoelectric element.
According to following specific embodiments and attached drawing is referred to, is better understood with above content of the invention and other mesh
, feature and advantage.
Detailed description of the invention
Fig. 1 is the perspective view according to the piezoelectric acceleration sensor piezoelectric system test fixture of an implementation form of the invention；
Fig. 2 is another view stereo figure of test fixture shown in FIG. 1；
Fig. 3 is the use state cross-sectional view of the through slot in test fixture shown in FIG. 1；
Fig. 4 is the use state diagram of test fixture shown in FIG. 1；
Appended drawing reference:
1 installation chassis；
2 fixed disks；
3 sliding bars；
4 nuts；
5 wire interfaces；
6 installation through-holes；
7 through slots；
8 contact pins；
9 jacks；
10 installation screws；
11 piezoelectric systems；
12 electrodes；
13 pedestals；
14 piezoelectricity groups.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In order to overcome the defects of the prior art, the present invention provides a kind of tests of piezoelectric acceleration sensor piezoelectric system
Fixture, comprising: the installation chassis being fixed on shake table mounting surface；The fixed disk of piezoelectric system is installed；For will be described solid
Price fixing is slidably mounted on the bindiny mechanism on the installation chassis；Be set to the fixed disk on to be electrically connected the pressure
The electrode of electric system and the wire interface of external test circuitry.
Test fixture of the invention, it is simple and convenient, it can be realized the pressure to no fixed installation mode and different outer dimensions
The test of electric system, to improve the production efficiency of piezoelectric acceleration sensor.
Specifically, piezoelectric acceleration sensor piezoelectric system test fixture of the invention, comprising: installation chassis 1, fixed disk
2, sliding bar 3, nut 4 and wire interface 5；Installation screw 10 or installation through-hole 6 are provided on the installation chassis 1, will pacify
Cartridge chassis 1 is fixed on shake table mounting surface；The through slot 7 of the "convex" shaped of annular array is also provided on the installation chassis 1；Institute
State that sliding bar 3 is T-shaped, " one " portion of T-shape is located at outside fixed disk 2, and the portion " I " of T-shape passes through fixed disk 2 and is located at installation
In the through slot 7 on chassis 1；There is screw thread in described 3 one end of sliding bar, cooperates with nut 4, to fixed fixed disk 2 and piezoelectric system 11；
The sliding bar 3 can slide in the through slot 7 of convex shape, and fixed disk 2 is driven to be moved to different positions；The wire interface
5, contact pin 8 can be connect with conducting wire, can be connect with the electrode 12 of piezoelectric system 11 with the jack 9 that contact pin 8 is directly connected to, and with it is outer
Shell insulation, i.e., be electrically connected with piezoelectric system 11 by binding post, the output signal of piezoelectric system 11 be transmitted to external testing
Circuit.
Preferably, there are three the through slots 7 of "convex" shaped for the lower surface annular array of the installation chassis 1 of the test fixture.
Preferably, the material of the fixed disk 2 is the steel of high elastic modulus, is that the monolithic of three pieces annular array forms,
Three pieces monolithic forms a closed annular.
Preferably, there is screw thread in one end of the sliding bar 3, cooperates with nut 4, using the fixed piezoelectricity system of rigid connection
System 11；The lower width of described its outer dia of nut 4 and through slot 7 is same as or slightly smaller than through slot lower width.
Preferably, the wire interface 5 can be Single-end output formula according to the structure type of sensor, can also be differential type,
And using the interface form to match with subsequent conducting wire；The wire interface 5 its contact pin 8, jack 9 are all made of highly elastic material, and
Surface is coated with high conductivity material (such as gold)；Its jack 9 of the wire interface 5 is cylinder type, and is tied using slot, necking etc. is split
Structure.
Due to above-mentioned technical proposal, compared with the prior art, the invention has the following advantages:
Test fixture of the invention in use can be with fixed disk 2, sliding bar 3, nut 4 by piezoelectric system 11
It is fixed on installation chassis 1, and is rigidly connected by installation chassis 1 and shake table mounting table, the output of piezoelectric system 11 is drawn
Line can directly by wire interface 5 and subsequent detection circuit connection, to realize the performance detection to piezoelectric system 11, installation with
Easy removal has installation fixed form without piezoelectric system；The sliding bar 3 of the test fixture can be in through slot 7 simultaneously
Free to slide, adjusting the size of fixed disk 2 to match needs piezoelectric system 11 to be tested, to realize to different outer dimensions
The test of piezoelectric system 11.
Below in conjunction with attached drawing, by specific embodiment, present invention be described in more detail.
As shown in Figure 1 and Figure 2, the piezoelectric acceleration sensor piezoelectric system test fixture, including installation chassis 1, fixed disk
2, sliding bar 3, nut 4 and wire interface 5；Installation screw 10 or installation through-hole 6 are provided on the installation chassis 1, will pacify
Cartridge chassis 1 is fixed on shake table mounting surface；The through slot 7 there are three "convex" shaped is also opened on the installation chassis 1；The sliding
There is screw thread in 3 one end of bar, is located in through slot 7 and cooperates with nut 4, to fixed fixed disk 2 and piezoelectric system 11；The nut 4 its
The lower width of outer dia and through slot 7 is same as or slightly smaller than 7 lower width of through slot；The sliding bar 3 can be slided in through slot 7
It is dynamic, and fixed disk 2 is driven to be moved to different positions；The wire interface 5, contact pin 8 can be connect with conducting wire, direct with contact pin
The jack 9 of 8 connections can be connect with the electrode 12 of piezoelectric system 11, and piezoelectric system output signal is transmitted to external test circuitry.
As shown in Figure 3, Figure 4, in use, unscrewing sliding bar 3 first, it is displaced outwardly fixed disk 2 upwards to suitable position, incites somebody to action
Piezoelectric system 11 is placed on the center position of installation chassis 1, moves inward fixed disk 2, blocks the inner circle of fixed disk 2 just
Or the outer diameter of the piezoelectricity group 14 slightly larger than piezoelectric system 11, sliding bar 3 is tightened still further below, and fixed disk 2 is made to be pressed on piezoelectric system
On 11 pedestal 13, finally the electrode 12 of piezoelectric system 11 is inserted at jack 9, that is, completes assembly.When test, by installing bottom
Mounted test fixture is fixed on shake table mounting surface by installation screw 10 or installation through-hole 6 on disk 1, by external testing
Circuit lead is connect with wire interface 5, can be tested.After completing test, electrode 12 need to only be extracted out from jack 9, be twisted
Loose sliding bar is displaced outwardly fixed disk upwards, that is, can be taken off piezoelectric system.
Under the objective for not departing from essential characteristic of the invention, the present invention can be presented as diversified forms, therefore in the present invention
Implementation form be to be illustrative rather than definitive thereof, limited since the scope of the present invention is defined by the claims rather than by specification,
And all changes fallen in the full scope of equivalents of the range that claim defines or the range that it is defined be understood to include
In detail in the claims.
Claims (8)
1. a kind of piezoelectric acceleration sensor piezoelectric system test fixture characterized by comprising
The installation chassis being fixed on shake table mounting surface；
The fixed disk of piezoelectric system is installed；
Bindiny mechanism for being slidably mounted on the fixed disk on the installation chassis；With
To be electrically connected the electrode of the piezoelectric system and the wire interface of external test circuitry in the fixed disk；
The bindiny mechanism includes through slot in the installation chassis, slides across the fixed disk and in the through slot
Sliding bar and fastening member for being fixed on the sliding bar in the through slot.
2. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 1, which is characterized in that the through slot
Be formed as the section of "convex" shaped.
3. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 2, which is characterized in that the fastening
Component includes the nut in the through slot, and the outer dia of the nut and the lower width of the through slot are identical or smaller
In the lower width of the through slot.
4. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 1, which is characterized in that the through slot
Be formed in the installation chassis it is multiple, and circular array arrange.
5. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 1, which is characterized in that the sliding
Rod becomes " T " font, and the line-styled portion in " T " font is located at outside the fixed disk, " I " in " T " font
Font portion passes through the fixed disk and is located in the through slot.
6. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 1, which is characterized in that the conducting wire
Interface includes the contact pin being connected with the conducting wire of external test circuitry and is directly connected to contact pin and the electricity with the piezoelectric system
The jack of pole connection.
7. piezoelectric acceleration sensor piezoelectric system test fixture according to claim 6, which is characterized in that the conducting wire
Interface is formed as the interface form to match with the conducting wire, and the jack is formed as cylinder type, and using the knot for splitting slot or necking
Structure.
8. piezoelectric acceleration sensor piezoelectric system test fixture according to any one of claim 1 to 7, feature exist
In the material of the fixed disk is the steel of high elastic modulus, and the fixed disk is formed as the monolithic group by three pieces annular array
At three pieces monolithic forms a closed annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905981.9A CN106853614B (en) | 2015-12-09 | 2015-12-09 | A kind of piezoelectric acceleration sensor piezoelectric system test fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905981.9A CN106853614B (en) | 2015-12-09 | 2015-12-09 | A kind of piezoelectric acceleration sensor piezoelectric system test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN106853614A CN106853614A (en) | 2017-06-16 |
| CN106853614B true CN106853614B (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510905981.9A Active CN106853614B (en) | 2015-12-09 | 2015-12-09 | A kind of piezoelectric acceleration sensor piezoelectric system test fixture |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551759A (en) * | 2020-04-13 | 2020-08-18 | 中国电子科技集团公司第四十九研究所 | Test fixture for hot film type wind speed sensor unit |
| CN113252264B (en) * | 2021-04-27 | 2023-09-29 | 广州市兴森电子有限公司 | Test fixture |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424577A (en) * | 2008-12-09 | 2009-05-06 | 沈阳仪表科学研究院 | Test fixture for preparing silicon capacitor differential pressure transducer |
| CN201998085U (en) * | 2010-12-06 | 2011-10-05 | 中国科学院上海硅酸盐研究所 | Clamp for assembling compression type piezoelectric transducer |
| CN102495299A (en) * | 2011-11-16 | 2012-06-13 | 中国科学院上海硅酸盐研究所 | System and method for automatically testing performances of piezoelectric materials |
| CN202985405U (en) * | 2012-11-26 | 2013-06-12 | 广州广电计量检测股份有限公司 | Switch fixing fixture |
| CN203282369U (en) * | 2012-12-29 | 2013-11-13 | 许伟伟 | Adjustable chuck type clamping device |
| CN204019396U (en) * | 2014-06-23 | 2014-12-17 | 苏州龙盛测试设备有限公司 | A kind of sensor test fast fixture |
| CN104678130A (en) * | 2015-03-11 | 2015-06-03 | 中国科学院上海硅酸盐研究所 | Fixture capable of being used for electrical performance test under high voltage |
| CN204585043U (en) * | 2015-04-25 | 2015-08-26 | 苏州凯雷特精密机械有限公司 | A kind of tool for clamp cylinders shape object |
| CN104924237A (en) * | 2015-06-10 | 2015-09-23 | 成都森绿家具有限公司 | Improved structure based on columnar wood clamping device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6104733B2 (en) * | 2013-06-25 | 2017-03-29 | 日置電機株式会社 | Clamp sensor and measuring device |
-
2015
- 2015-12-09 CN CN201510905981.9A patent/CN106853614B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424577A (en) * | 2008-12-09 | 2009-05-06 | 沈阳仪表科学研究院 | Test fixture for preparing silicon capacitor differential pressure transducer |
| CN201998085U (en) * | 2010-12-06 | 2011-10-05 | 中国科学院上海硅酸盐研究所 | Clamp for assembling compression type piezoelectric transducer |
| CN102495299A (en) * | 2011-11-16 | 2012-06-13 | 中国科学院上海硅酸盐研究所 | System and method for automatically testing performances of piezoelectric materials |
| CN202985405U (en) * | 2012-11-26 | 2013-06-12 | 广州广电计量检测股份有限公司 | Switch fixing fixture |
| CN203282369U (en) * | 2012-12-29 | 2013-11-13 | 许伟伟 | Adjustable chuck type clamping device |
| CN204019396U (en) * | 2014-06-23 | 2014-12-17 | 苏州龙盛测试设备有限公司 | A kind of sensor test fast fixture |
| CN104678130A (en) * | 2015-03-11 | 2015-06-03 | 中国科学院上海硅酸盐研究所 | Fixture capable of being used for electrical performance test under high voltage |
| CN204585043U (en) * | 2015-04-25 | 2015-08-26 | 苏州凯雷特精密机械有限公司 | A kind of tool for clamp cylinders shape object |
| CN104924237A (en) * | 2015-06-10 | 2015-09-23 | 成都森绿家具有限公司 | Improved structure based on columnar wood clamping device |
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| Publication number | Publication date |
|---|---|
| CN106853614A (en) | 2017-06-16 |
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