CN203037671U - Test tool used to test performance of acceleration sensors - Google Patents
Test tool used to test performance of acceleration sensors Download PDFInfo
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- CN203037671U CN203037671U CN 201320023261 CN201320023261U CN203037671U CN 203037671 U CN203037671 U CN 203037671U CN 201320023261 CN201320023261 CN 201320023261 CN 201320023261 U CN201320023261 U CN 201320023261U CN 203037671 U CN203037671 U CN 203037671U
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- temperature sensor
- test fixture
- octagon column
- test
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a test tool used to test performance of acceleration sensors comprising a multiple-dimensioned circular dividing table, an octahedral column is disposed on the multiple-dimensioned circular dividing table, a resistor heating sheet, and a temperature sensor connected with an external power supply. The octahedral column adopts a hollow structure, and the acceleration sensors are fixedly disposed on an outer side of a column surface of the octahedral column. The resistor heating sheet is fixedly disposed on an inner wall of the octahedral column, and the temperature sensor is hung on a geometric center of the octahedral column. The test tool adopts the octahedral column, and the temperature sensor is disposed on a geometric center of the octahedral column, therefore all of the acceleration sensors can be completely symmetrically disposed on a periphery of the temperature sensor, the data acquired by the temperature sensor can be more accurate, and the test of the performance of the acceleration sensors can be more accurate.
Description
Technical field
The utility model relates to a kind of test fixture for the testing acceleration sensor performance, belongs to the surveying instrument technical field.
Background technology
In the prior art, the frock of testing acceleration sensor performance comprises: the angular column of hollow, multiple dimensioned circular dividing table, resistance heated sheet and temperature sensor, wherein, angular column is fixed on the multiple dimensioned circular dividing table, each acceleration transducer is fixed on the cylinder of angular column by four screws, each face of angular column can be installed six acceleration transducers, and the resistance heated sheet is fixed on the inwall of angular column, and temperature sensor is installed in the hollow space of angular column.
In test process, a plurality of acceleration transducers are installed in the cylinder outside of angular column respectively, the resistance heated sheet that is used for to the acceleration transducer heating is sticked on the hollow wall of angular column inboard, and the temperature sensor of collecting temperature data is installed in the hollow space of angular column.Change the position of every acceleration transducer by rotating multiple dimensioned circular dividing table, thus the performance of testing acceleration sensor.
In this test fixture, each face of angular column can be installed six acceleration transducers, and each angular column can be installed 24 acceleration transducers simultaneously.And temperature sensor is installed in the hollow space of angular column, make 24 acceleration transducers different apart from the distance of temperature sensor, acceleration transducer can't be symmetrically distributed in temperature sensor around, thereby reduced the accuracy of the temperature value of the acceleration transducer that temperature sensor collects, finally caused testing the performance out of true of the acceleration transducer of acquisition.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of improved test fixture for the testing acceleration sensor performance.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of test fixture for the testing acceleration sensor performance comprises multiple dimensioned circular dividing table, is arranged on octagon column, resistance heated sheet and the temperature sensor that is connected with external power source on the described multiple dimensioned circular dividing table;
Wherein, described octagon column is the structure of hollow, and acceleration transducer is fixed on the cylinder outside of described octagon column, and described resistance heated sheet is fixed on the inwall of described octagon column, the unsettled geometric center place that is arranged on described octagon column of described temperature sensor.
Wherein more preferably, offer first mounting hole on relative at least two faces of described octagon column, described first mounting hole is used for the unsettled geometric center place that is arranged on described octagon column of described temperature sensor.
Wherein more preferably, offer four second mounting holes that are used for installing described acceleration transducer on each face of described octagon column, described first mounting hole site is in the center of four described second mounting holes.
Wherein more preferably, around each described second mounting hole, offer for the screw of fixing described acceleration transducer.
Wherein more preferably, described resistance heated sheet sticks on the inwall of described octagon column.
Wherein more preferably, the scale turntable that described multiple dimensioned circular dividing table comprises for the base that supports and is used for taking measurement of an angle, described scale turntable is arranged on the described base, and described octagon column is fixed on the described scale turntable.
The utility model is a kind of test fixture that can make acceleration transducer thermally equivalent, accurate collecting temperature data.This test fixture makes the quantity of simultaneously-measured acceleration transducer increase by adopting octagon column, and by with the unsettled geometric center that is arranged on octagon column of temperature sensor, make all acceleration transducers be installed in fully symmetrically temperature sensor around, thereby the data that temperature sensor is gathered are more accurate, make the test performance of acceleration transducer more accurate simultaneously.
Description of drawings
Fig. 1 is the structural representation of the test fixture for the testing acceleration sensor performance provided by the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Test fixture for the testing acceleration sensor performance provided by the utility model (below, be called for short test fixture), comprise multiple dimensioned circular dividing table 1, be arranged on octagon column 2, resistance heated sheet and the temperature sensor that is connected with external power source on the multiple dimensioned circular dividing table 1; Wherein, octagon column 2 is structures of hollow, and acceleration transducer is fixed on the cylinder outside of octagon column 2, and the resistance heated sheet is fixed on the inwall of octagon column 2, the unsettled geometric center place that is arranged on octagon column 2 of temperature sensor.
In conjunction with Fig. 1 as can be known, the scale turntable 12 that multiple dimensioned circular dividing table 1 comprises for the base 11 that supports and is used for taking measurement of an angle, scale turntable 12 is arranged on the base 11, and octagon column 2 is fixed on the scale turntable 12.In test process, scale turntable 12 can drive octagon column 2 rotations.
As can be seen from Figure 1, octagon column 2 is structures of hollow, and eight faces are enclosed regular octahedron around central shaft.On each face of octagon column 2, offer four mounting holes 21 that are used for installing acceleration transducer respectively, and offer four and be used for the fixedly screw 22 of acceleration transducer around each mounting hole 21, acceleration transducer is fixed on the octagon column 2 by screw 22.For temperature sensor being arranged on the geometric center of octagon column 2, on two relative faces of octagon column 2, to offer one respectively at least and be used for temperature sensor mounted mounting hole 23, mounting hole 23 is positioned at the center of four mounting holes 21.Thereby temperature sensor can unsettledly be arranged at the geometric center place of octagon column 2 by being arranged at two mounting holes 23 on the opposite face.Certainly, also can offer paired mounting hole 23 at octagon column 2 other relative faces, can make the setting of temperature sensor more stable by a plurality of mounting holes 23.The resistance heated sheet is sticked on the inwall 24 of octagon column 2, this resistance heated sheet is used for the temperature of test process testing acceleration sensor.
In this embodiment, by each face at octagon column 24 mounting holes 21 are set, and will be arranged on the center of four mounting holes 21 for the unsettled mounting hole 23 that temperature sensor is set.Make that the temperature sensor that is suspended on octagon column 2 geometric center places is equal apart from the distance of each acceleration transducer, thereby increased the measuring accuracy of temperature in the test process.For angular column, octagon column 2 can simultaneously-measured acceleration transducer quantity increase to 32, has increased by eight, thereby has saved in a large amount of sensor measurement processes simultaneously, heats up and the time of testing, and has improved work efficiency.
Use the performance of this test fixture testing acceleration sensor, in test process, connect after the power supply, the resistance heated sheet heats to acceleration transducer, and temperature sensor passes to client in real time with temperature; When temperature reached preset temperature, client began the performance of testing acceleration sensor; When all acceleration transducers after the Performance Detection of current location finishes, rotate multiple dimensioned index table, the performance of sense acceleration sensor is continued in the position of adjusting each acceleration transducer.
Measuring accuracy to octahedra test fixture and tetrahedron test fixture compares experiment below.Wherein, in every kind of frock, the displays temperature that records temperature sensor respectively is fixed in the probe temperature of each the piece acceleration transducer on the octagon column with all, and the result respectively as shown in Table 1 and Table 2.Table 1 is depicted as the temperature test result of regular octahedron test fixture, and table 2 is depicted as the temperature test result of positive tetrahedron test fixture.Contrast as can be known: the relative positive tetrahedron test fixture of data that the regular octahedron test fixture obtains, temperature error values is less, and the result is more accurate, thereby, adopt the regular octahedron test fixture to carry out the performance test of acceleration transducer, parameters such as the temperature coefficient of acquisition are more accurate.
The temperature test result of table 1 regular octahedron test fixture
The temperature test result of table 2 positive tetrahedron test fixture
In sum, the test fixture that the utility model provides is by adopting octagon column, and temperature sensor is arranged on the geometric center of octagon column, make all acceleration transducers be installed in fully symmetrically temperature sensor around, can make polylith acceleration transducer thermally equivalent, it is more accurate to the test of acceleration transducer performance to make.For angular column, the acceleration transducer quantity that octagon column can be surveyed has simultaneously increased by eight simultaneously, thereby has saved the time of heating up with test, has improved work efficiency.
Above the test fixture for the testing acceleration sensor performance provided by the utility model is had been described in detail.For one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from the utility model connotation it being done all will constitute to the utility model infringement of patent right, with corresponding legal responsibilities.
Claims (6)
1. test fixture that is used for the testing acceleration sensor performance is characterized in that:
Described test fixture comprises multiple dimensioned circular dividing table, is arranged on octagon column, resistance heated sheet and the temperature sensor that is connected with external power source on the described multiple dimensioned circular dividing table;
Wherein, described octagon column is the structure of hollow, and acceleration transducer is fixed on the cylinder outside of described octagon column, and described resistance heated sheet is fixed on the inwall of described octagon column, the unsettled geometric center place that is arranged on described octagon column of described temperature sensor.
2. test fixture as claimed in claim 1 is characterized in that:
Offer first mounting hole on relative at least two faces of described octagon column, described first mounting hole is used for the unsettled geometric center place that is arranged on described octagon column of described temperature sensor.
3. test fixture as claimed in claim 2 is characterized in that:
Offer four second mounting holes that are used for installing described acceleration transducer on each face of described octagon column, the center of described first mounting hole site four described second mounting holes on cylinder.
4. test fixture as claimed in claim 3 is characterized in that:
Around each described second mounting hole, offer the screw for fixing described acceleration transducer.
5. test fixture as claimed in claim 1 is characterized in that:
Described resistance heated sheet sticks on the inwall of described octagon column.
6. test fixture as claimed in claim 1 is characterized in that:
The scale turntable that described multiple dimensioned circular dividing table comprises for the base that supports and is used for taking measurement of an angle, described scale turntable is arranged on the described base, and described octagon column is fixed on the described scale turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023261 CN203037671U (en) | 2013-01-16 | 2013-01-16 | Test tool used to test performance of acceleration sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023261 CN203037671U (en) | 2013-01-16 | 2013-01-16 | Test tool used to test performance of acceleration sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037671U true CN203037671U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320023261 Expired - Fee Related CN203037671U (en) | 2013-01-16 | 2013-01-16 | Test tool used to test performance of acceleration sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037671U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954796A (en) * | 2014-04-22 | 2014-07-30 | 北京兴华机械厂 | Device for testing and measuring three-floated gyroscope accelerometer power transmission device |
| CN104597288A (en) * | 2013-10-30 | 2015-05-06 | 北京强度环境研究所 | Calibration device for high-temperature acceleration senor |
| CN108037316A (en) * | 2017-12-01 | 2018-05-15 | 中国电子产品可靠性与环境试验研究所 | Device and method based on performance indicator test and appraisal accelerometer reliability |
| CN116223849A (en) * | 2022-12-02 | 2023-06-06 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
-
2013
- 2013-01-16 CN CN 201320023261 patent/CN203037671U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597288A (en) * | 2013-10-30 | 2015-05-06 | 北京强度环境研究所 | Calibration device for high-temperature acceleration senor |
| CN103954796A (en) * | 2014-04-22 | 2014-07-30 | 北京兴华机械厂 | Device for testing and measuring three-floated gyroscope accelerometer power transmission device |
| CN103954796B (en) * | 2014-04-22 | 2016-05-04 | 北京兴华机械厂 | For the device that three floating gyroaccelerometer power transmitting devices are tested and tested |
| CN108037316A (en) * | 2017-12-01 | 2018-05-15 | 中国电子产品可靠性与环境试验研究所 | Device and method based on performance indicator test and appraisal accelerometer reliability |
| CN116223849A (en) * | 2022-12-02 | 2023-06-06 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
| CN116223849B (en) * | 2022-12-02 | 2023-10-20 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20190116 |