CN105510634B - A kind of detection platform for acceleration transducer performance - Google Patents
A kind of detection platform for acceleration transducer performance Download PDFInfo
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- CN105510634B CN105510634B CN201610078995.2A CN201610078995A CN105510634B CN 105510634 B CN105510634 B CN 105510634B CN 201610078995 A CN201610078995 A CN 201610078995A CN 105510634 B CN105510634 B CN 105510634B
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- 230000001133 acceleration Effects 0.000 title claims abstract description 70
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims 1
- 239000011295 pitch Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of detection platform for acceleration transducer performance, including sensor attachment mechanism, Level-adjusting mechanism and grade adjustment mechanism.Sensor attachment mechanism includes a rectangular mounting plate and the first to the 5th sensor mounting hole being opened on the installing plate.Level-adjusting mechanism includes the first to the 3rd screwed hole, a fixation support column and two horizontal adjusting bolts being opened on the installing plate.Grade adjustment mechanism includes a upper surface and skewback of the bottom surface in 45 ° and some mounting posts.One kind of the present invention is used for acceleration transducer performance detecting platform.The detection platform of the present invention, being capable of quick and convenient fixed acceleration transducer, and the output performance of acceleration transducer can be quickly measured, a kind of quick, flexible scheme is provided to detect the mounting plane levelness of acceleration transducer and its output characteristics and its residing plane gradient relation correctness.
Description
Technical Field
The invention relates to a detection platform for performance of an acceleration sensor.
Background
An acceleration sensor is an electronic device capable of measuring acceleration forces. Acceleration force is the force that an object exerts on an object during acceleration and may be constant or variable. In general, an acceleration sensor operates based on the principle of the piezoelectric effect, and the acceleration sensor generates a voltage by using a crystal deformation caused by acceleration in the acceleration sensor, and converts the acceleration into a voltage output by calculating a relationship between the generated voltage and the applied acceleration. There are many other methods to make acceleration sensor, such as capacitance effect, thermal bubble effect, and optical effect, but the most basic principle is that some medium is deformed by acceleration, and the deformation is measured and converted into voltage output by related circuit. Therefore, from the analysis of the working principle of the accelerometer, the performance of the acceleration sensor has a great relationship with the plane, and when the output performance of the accelerometer is measured, a measuring instrument is required to be positioned in an occasion with a very high requirement on levelness. At present, the acceleration sensor measuring tool used on the rail transit train is manually adjusted by adding a gasket to adjust the flatness of the mounting plate, and the adjustment efficiency and the adjustment precision are greatly reduced by manual work without depending on tools.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a detection platform for the performance of an acceleration sensor, which can quickly and conveniently fix the acceleration sensor and quickly measure the output performance of the acceleration sensor.
The purpose of the invention is realized as follows: a detection platform for performance of an acceleration sensor comprises a sensor mounting mechanism, a levelness adjusting mechanism and a gradient adjusting mechanism; wherein,
the sensor mounting mechanism comprises a rectangular mounting plate and first to fifth sensor mounting holes formed in the mounting plate; the first sensor mounting hole, the second sensor mounting hole, the third sensor mounting hole and the fourth sensor mounting hole are all close to one short edge of the mounting plate, and the centers of the first sensor mounting hole, the second sensor mounting hole and the fourth sensor mounting hole are all located on the same connecting line parallel to the short edge of the mounting plate; the distance between the first sensor mounting hole and the second sensor mounting hole is the same as the distance between the second sensor mounting hole and the third sensor mounting hole; the central connecting line of the fifth sensor mounting hole and the third sensor mounting hole is parallel to the long edge of the mounting plate, and the central connecting lines of the fifth sensor mounting hole, the first sensor mounting hole and the fourth sensor mounting hole form an isosceles triangle;
the levelness adjusting mechanism comprises first to third threaded holes, a fixed support column and two horizontal adjusting bolts, wherein the first to third threaded holes are formed in the mounting plate; the first threaded hole and the second threaded hole are close to one short edge of the mounting plate, and the central connecting line of the first threaded hole and the second threaded hole is parallel to the short edge of the mounting plate; the third threaded hole is close to the other short side of the mounting plate, and the central connecting line of the first threaded hole, the second threaded hole and the third threaded hole forms an isosceles triangle; the second threaded hole is provided with a second bolt sleeve with internal and external threads; the third threaded hole is provided with a third bolt sleeve with internal and external threads; the fixed support column is arranged in the first threaded hole, and the lower end of the fixed support column is a conical end with an angle of 45 degrees; the two horizontal adjusting bolts are arranged in the second bolt sleeve and the third bolt sleeve in a one-to-one correspondence mode, and the lower ends of the two horizontal adjusting bolts are conical ends with the angle of 45 degrees;
the slope adjusting mechanism comprises an inclined block and a plurality of mounting columns, wherein the upper surface of the inclined block and the bottom surface of the inclined block form an angle of 45 degrees, and the inclined block is fixed on the upper surface of the mounting plate and is close to the other short side and the long side of the mounting plate; the mounting column is vertically mounted on the upper surface of the inclined block;
the detection platform for the performance of the acceleration sensor is characterized in that the levelness adjusting mechanism further comprises a levelness indicator embedded on the mounting plate.
The detection platform for the performance of the acceleration sensor is characterized in that the internal thread of the second bolt sleeve is a fine-pitch 60-degree triangular thread, and the thread pitch is 0.05 mm; the internal thread of the third bolt sleeve is a fine-pitch 60-degree triangular thread and the thread pitch is 0.2 mm.
In the above platform for detecting the performance of the acceleration sensor, the two horizontal adjusting bolts are respectively provided with the corresponding nuts.
The above platform for detecting the performance of the acceleration sensor, wherein the inclined block and the mounting plate are integrally formed.
The technical scheme of the detection platform for the performance of the acceleration sensor can quickly and conveniently fix the acceleration sensor, can quickly measure the output performance of the acceleration sensor, provides a quick and flexible scheme for detecting the levelness of the installation plane of the acceleration sensor and the correctness of the relation between the output characteristic of the acceleration sensor and the slope of the plane where the acceleration sensor is located, and provides an accurate, quick and convenient diagnosis device for the performance of a precise test device of a rail transit signal system. Compared with the prior art, the invention has the following characteristics: the acceleration sensors of different installation types can be tested; by utilizing the principle that three points determine one plane, the plane levelness of the mounting plate can be accurately and quickly adjusted, and reference is provided for the test performance of the acceleration sensor; the levelness of the plane where the sensor is located can be judged visually through a horizontal display meter; the installation platform with a certain gradient is further provided, so that the accuracy of the output performance of the acceleration sensor can be conveniently and accurately tested.
Drawings
FIG. 1 is a top view of the test platform for acceleration sensor performance of the present invention;
FIG. 2 is a view taken along line A-A of FIG. 1;
FIG. 3a is a schematic view of a horizontal adjusting bolt in the testing platform of the present invention;
FIG. 3b is a schematic view of a third bolt sleeve in the inspection platform of the present invention;
FIG. 3c is a schematic view of another horizontal adjusting bolt in the testing platform of the present invention;
FIG. 3d is a schematic diagram of the second bolt sleeve of the inspection platform of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1 to fig. 3d, the testing platform for performance of an acceleration sensor of the present invention includes a sensor mounting mechanism, a levelness adjusting mechanism and a gradient adjusting mechanism.
The sensor mounting mechanism comprises a mounting plate 1, first to fifth sensor mounting holes 13-17 formed in the mounting plate 10 and a levelness indicator 18; wherein: the mounting plate 10 is rectangular including parallel left and right short sides 11, 11 'and parallel front and rear long sides 12, 12'; the first to fourth sensor mounting holes 13 to 16 are all close to the right short side 11 'of the mounting plate 10, and the centers of the first to fourth sensor mounting holes 13 to 16 are all located on the same connecting line parallel to the right short side 11' of the mounting plate 10; the distance between the first sensor mounting hole 13 and the second sensor mounting hole 14 is the same as the distance between the second sensor mounting hole 14 and the third sensor mounting hole 15; the fifth sensor mounting hole 17 is positioned at the middle right part of the mounting plate 10, and the central connecting line of the fifth sensor mounting hole 17 and the third sensor mounting hole 15 is parallel to the rear long edge 12' of the mounting plate 10; the center connecting lines of the fifth sensor mounting hole 17, the first sensor mounting hole 13 and the fourth sensor mounting hole 16 form an isosceles triangle; a levelness indicator 18 is embedded in the mounting plate 10 adjacent the rear long side 12'.
The levelness adjusting mechanism comprises first to third threaded holes 21 to 23 formed in the mounting plate 10, a fixed support column 24 and two horizontal adjusting bolts 25 and 26; wherein: the first threaded hole 21 and the second threaded hole 22 are both close to the right short side 11 'of the mounting plate 10, and the central connecting line of the first threaded hole 21 and the second threaded hole 22 is parallel to the right short side 11' of the mounting plate 10; the third threaded hole 23 is close to the left short side 11 of the mounting plate 10, and the central connecting lines of the first threaded hole 21 to the third threaded hole 23 form an isosceles triangle; the second threaded hole 22 is provided with a second bolt sleeve 220 (see fig. 3d) with internal and external threads, the internal thread of the second bolt sleeve 220 is a fine 60-degree triangular thread and the thread pitch is 0.05 mm; the third threaded hole 23 is provided with a third bolt sleeve 230 (see fig. 3b) having an internal thread and an external thread, the internal thread of the third bolt sleeve 230 is a fine 60-degree triangular thread and has a thread pitch of 0.2 mm; a fixed support column 24 is arranged in the first threaded hole 21, and the lower end of the fixed support column 24 is a conical end with an angle of 45 degrees; two horizontal adjustment bolts 25, 26 are mounted in the second bolt sleeve 220 and the third bolt sleeve 230 in a one-to-one correspondence, the lower ends of the two horizontal adjustment bolts 25, 26 are both conical ends of 45 °, and the two horizontal adjustment bolts 25, 26 are respectively provided with corresponding nuts 250, 260 (see fig. 3a and 3 c).
The slope adjusting mechanism comprises an inclined block 31 and a plurality of mounting columns 32, wherein the upper surface of the inclined block 31 and the bottom surface of the inclined block form an angle of 45 degrees, the inclined block 31 is fixed on the upper surface of the mounting plate 10 and is close to the left short side 11 and the front long side 12 of the mounting plate 10, and the inclined block 31 and the mounting plate 10 can be integrally formed; the mounting post 32 is vertically mounted on the upper surface of the inclined block 31;
because the acceleration sensor is a high-precision sensitive element, the detection platform is suitable for measuring acceleration sensors with different precisions, and the precisions of the acceleration sensors respectively reach 0.1g to 1g, so that the requirement on the flatness of an installation plane is very high. The mounting plate 4 in the sensor mounting mechanism is a high-precision mounting plate and a supporting frame, is made of stainless steel materials, is corrosion-resistant, easy to machine and formed by machining through a milling machine, is convenient to machine, can meet the requirement of an acceleration sensor on a mounting plane, and meets the flatness of 0.2. The mounting mechanism of the sensor provides three different types of mounting modes, is suitable for the acceleration sensors with three fixing modes, and can facilitate testing. The direction of acceleration sensor confirms very important, has three kinds of acceleration sensor mounting means that are applicable to the rail transit trade in the market at present, and one is three hole fixed: the first sensor mounting hole 13, the fourth sensor mounting hole 16, and the fifth sensor mounting hole 17. The second type is a staggered fixing type, that is, the central connecting line of the two mounting holes is not parallel to the short side or the long side of the mounting plate 10, and the fixing mode is used for preventing the mounting direction error and is composed of a fifth sensor mounting hole 17 and a second sensor mounting hole 14. And the other one is a two-point fixed type, and the forward direction of the acceleration sensor can be judged according to the position of the joint of the accelerometer, and the acceleration sensor is composed of a fifth sensor mounting hole 17 and a third sensor mounting hole 15.
The levelness adjusting mechanism is an important part of the invention, the levelness adjustment of the mounting plate 10 adopts bolt three-point positioning adjustment, the principle that three points determine a plane is utilized, the adjustment precision is embodied by utilizing the precision of the thread pitch of the bolt, and the levelness display meter 18 is arranged on the mounting plate 10, so that the levelness of the mounting plate 10 can be quickly judged. The second bolt sleeve 220 and the third bolt sleeve 230 are both internally and externally threaded sleeves, the external threads are common coarse threads and are matched with the threaded holes of the mounting plate 10, the internal threads are fine triangular threads, and the thread pitches are 0.05mm and 0.2mm respectively. The two horizontal adjusting bolts 25 and 26 are also bolts with fine-teeth triangular threads, the thread pitches of the two horizontal adjusting bolts 25 and 26 are required to be 0.05mm and 0.2mm respectively, the horizontal adjusting bolt 25 is matched with the second bolt sleeve 220, the horizontal adjusting bolt 26 is matched with the third bolt sleeve 230, the lower ends of the two horizontal adjusting bolts 25 and 26 are processed by 45-degree reverse R circles, and the landed position is ensured to be a dotted position. The fixed supporting column 24 is designed in a stainless steel conical shape, the fixed supporting column 24 and the mounting plate 10 are also in a bolt fit mounting mode, the lower end of the fixed supporting column 24 is in a conical point type design, the conical degree is 45 degrees, the fixed supporting column 24 can be ensured to be grounded in a point type manner, the grounding manner of the fixed supporting column 24 and the point type grounding of the two horizontal adjusting bolts 25 and 26 enable the mounting plate 10 to form a real three-point supporting plane, and therefore an accurate supporting surface can be provided; the levelness indicator 18 is a mini-bubble level and is embedded in the mounting plate 10, with a sensitivity that can reach a high accuracy of 0.01 mm/m.
The slope adjusting module provides a 45-degree slope for the acceleration sensor, adopts the single-point fixed acceleration sensor and can simply and quickly measure the output performance parameters of the acceleration sensor at a specific slope. The inclined block 31 is provided with a fixed position corresponding to the fixed hole of the acceleration sensor, namely, the inclined surface of the inclined block 31 is provided with a mounting hole of the mounting column 32, and the mounting hole is matched with the mounting column 32 and used for simply mounting the acceleration sensor, so that the acceleration sensor can be quickly and conveniently fixed, and the output performance of the acceleration sensor at the 45-degree position can be quickly measured.
The detection platform for the performance of the acceleration sensor can quickly and conveniently fix the acceleration sensor, can quickly measure the output performance of the acceleration sensor, provides a quick and flexible scheme for detecting the levelness of the installation plane of the acceleration sensor and the correctness of the relation between the output characteristic and the slope of the plane where the acceleration sensor is located, and provides an accurate, quick and convenient diagnosis device for the performance of a precise test device of a rail transit signal system. Compared with the prior art, the invention has the following characteristics: the acceleration sensors of different installation types can be tested; by utilizing the principle that three points determine one plane, the plane levelness of the mounting plate can be accurately and quickly adjusted, and reference is provided for the test performance of the acceleration sensor; the levelness of the plane where the sensor is located can be judged visually through a horizontal display meter; the installation platform with a certain gradient is further provided, so that the accuracy of the output performance of the acceleration sensor can be conveniently and accurately tested.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (5)
1. A detection platform for performance of an acceleration sensor comprises a sensor mounting mechanism, a levelness adjusting mechanism and a gradient adjusting mechanism; it is characterized in that the preparation method is characterized in that,
the sensor mounting mechanism comprises a rectangular mounting plate and first to fifth sensor mounting holes formed in the mounting plate; the first sensor mounting hole, the second sensor mounting hole, the third sensor mounting hole and the fourth sensor mounting hole are all close to one short edge of the mounting plate, and the centers of the first sensor mounting hole, the second sensor mounting hole and the fourth sensor mounting hole are all located on the same connecting line parallel to the short edge of the mounting plate; the distance between the first sensor mounting hole and the second sensor mounting hole is the same as the distance between the second sensor mounting hole and the third sensor mounting hole; the central connecting line of the fifth sensor mounting hole and the third sensor mounting hole is parallel to the long edge of the mounting plate, and the central connecting lines of the fifth sensor mounting hole, the first sensor mounting hole and the fourth sensor mounting hole form an isosceles triangle;
the levelness adjusting mechanism comprises first to third threaded holes, a fixed support column and two horizontal adjusting bolts, wherein the first to third threaded holes are formed in the mounting plate; the first threaded hole and the second threaded hole are close to one short edge of the mounting plate, and the central connecting line of the first threaded hole and the second threaded hole is parallel to the short edge of the mounting plate; the third threaded hole is close to the other short side of the mounting plate, and the central connecting line of the first threaded hole, the second threaded hole and the third threaded hole forms an isosceles triangle; the second threaded hole is provided with a second bolt sleeve with internal and external threads; the third threaded hole is provided with a third bolt sleeve with internal and external threads; the fixed support column is arranged in the first threaded hole, and the lower end of the fixed support column is a conical end with an angle of 45 degrees; the two horizontal adjusting bolts are arranged in the second bolt sleeve and the third bolt sleeve in a one-to-one correspondence mode, and the lower ends of the two horizontal adjusting bolts are conical ends with the angle of 45 degrees;
the slope adjusting mechanism comprises an inclined block and a plurality of mounting columns, wherein the upper surface of the inclined block and the bottom surface of the inclined block form an angle of 45 degrees, and the inclined block is fixed on the upper surface of the mounting plate and is close to the other short side and the long side of the mounting plate; the mounting post is vertically mounted on the upper surface of the swash block.
2. The testing platform for the performance of acceleration sensors according to claim 1, characterized by, that the levelness adjusting mechanism further comprises a levelness indicator embedded on the mounting plate.
3. The test platform for the performance of acceleration sensors according to claim 1, characterized by, that the internal thread of the second bolt sleeve is a fine pitch 60 ° triangular thread and the pitch is 0.05 mm; the internal thread of the third bolt sleeve is a fine-pitch 60-degree triangular thread and the thread pitch is 0.2 mm.
4. The testing platform for the performance of acceleration sensors according to claim 1, characterized by, that two said horizontal adjusting bolts are equipped with corresponding nuts, respectively.
5. The test platform for the performance of acceleration sensors of claim 1, characterized by, that the sloping block is integrated with the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078995.2A CN105510634B (en) | 2016-02-03 | 2016-02-03 | A kind of detection platform for acceleration transducer performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078995.2A CN105510634B (en) | 2016-02-03 | 2016-02-03 | A kind of detection platform for acceleration transducer performance |
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| Publication Number | Publication Date |
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| CN105510634A CN105510634A (en) | 2016-04-20 |
| CN105510634B true CN105510634B (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610078995.2A Active CN105510634B (en) | 2016-02-03 | 2016-02-03 | A kind of detection platform for acceleration transducer performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113189367A (en) * | 2021-04-01 | 2021-07-30 | 中国第一汽车股份有限公司 | Acceleration sensor detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201819838U (en) * | 2010-10-14 | 2011-05-04 | 株洲时代新材料科技股份有限公司 | Adjustable clamp of displacement sensor |
| CN202372196U (en) * | 2011-12-16 | 2012-08-08 | 江西洪都航空工业集团有限责任公司 | Adjustable sensor installation support |
| CN104215380A (en) * | 2014-09-12 | 2014-12-17 | 广西师范大学 | Force measuring device for precisely measuring three-dimensional dynamic forces externally applied to fixed force body |
| CN205353122U (en) * | 2016-02-03 | 2016-06-29 | 上海自仪泰雷兹交通自动化系统有限公司 | A testing platform for acceleration sensor performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7273994B2 (en) * | 2004-11-03 | 2007-09-25 | Castek Mechatron Industry Co., Ltd. | Electrical discharge machine for improving the guide alignment base structure |
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- 2016-02-03 CN CN201610078995.2A patent/CN105510634B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201819838U (en) * | 2010-10-14 | 2011-05-04 | 株洲时代新材料科技股份有限公司 | Adjustable clamp of displacement sensor |
| CN202372196U (en) * | 2011-12-16 | 2012-08-08 | 江西洪都航空工业集团有限责任公司 | Adjustable sensor installation support |
| CN104215380A (en) * | 2014-09-12 | 2014-12-17 | 广西师范大学 | Force measuring device for precisely measuring three-dimensional dynamic forces externally applied to fixed force body |
| CN205353122U (en) * | 2016-02-03 | 2016-06-29 | 上海自仪泰雷兹交通自动化系统有限公司 | A testing platform for acceleration sensor performance |
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Address after: 201206 Shanghai City, Pudong New Area Jinhai Road No. 1000 Building No. 28 Applicant after: Shanghai electric traffic automation system Co., Ltd. Address before: 201206 Shanghai City, Pudong New Area Jinhai Road No. 1000 Building No. 28 Applicant before: Shanghai is from instrument Tai Leizi traffic automation System Co., Ltd |
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