CN103712735A - Pressure sensor protection device and assembly method thereof - Google Patents
Pressure sensor protection device and assembly method thereof Download PDFInfo
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- CN103712735A CN103712735A CN201310739575.0A CN201310739575A CN103712735A CN 103712735 A CN103712735 A CN 103712735A CN 201310739575 A CN201310739575 A CN 201310739575A CN 103712735 A CN103712735 A CN 103712735A
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- pressure sensor
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Abstract
The invention discloses a pressure sensor protection device. The pressure sensor protection device comprises a shell body and a cover plate fixedly connected to an opening of the shell body. The shell body is of a hollow cylindrical structure and used for containing a pressure sensor. The invention further discloses an assembly method of the pressure sensor protection device. Due to the interval between the pressure sensor and the shell body and the interval between the pressure sensor and an axial translational motion plate, influences on the measurement precision of the sensor caused by long-term or instantaneous mechanical disturbance are avoided, and influences on the pressure sensor caused by external temperature changes are delayed. The pressure sensor protection device overcomes the defect that an existing pressure sensor is prone to external mechanical disturbance and can be used in measurement work of air pressure and liquid pressure in complex load environments.
Description
Technical field
The present invention relates to art of pressure sensors, specifically, relate to a kind of pressure sensor protecting equipment and assemble method thereof, can eliminate the impact of mechanics disturbance on pressure transducer.
Background technology
Pressure transducer is a kind of pick-up unit, can experience measured information, and the information that detection can be experienced, be for conversion into according to certain rules the information output of electric signal or its desired form, to meet the requirements such as transmission, processing, storage, demonstration, record and control of information.
At present, pressure transducer of a great variety, and range of application is more extensive.Yet because the complexity of environment for use causes it to have defect.Traditional protector for sensor is just realized and is weakened mechanics disturbance by thickening casing size, but under long-term mechanics or environmental perturbation effect, effect is often also not near desirable.Meanwhile, under some particular surroundingss, the size of sensor is also had to corresponding demand.
Summary of the invention
Technical matters to be solved by this invention is that existing pressure sensor protecting equipment weakens that the method for mechanics disturbance is single and specific environment is poor for applicability.
Technical scheme of the present invention is as follows:
A pressure sensor protecting equipment, is characterized in that, comprises the cover plate being fixedly connected with of case body and opening part thereof, and the tubular construction that described case body is hollow, for hold pressure unit.
Further: in the tubular construction of described case body, to be provided with axial translatory plate, for limiting moving axially of described pressure transducer.
Further; described pressure sensor protecting equipment also comprises: a plurality of elastic bodys; be arranged on the inwall and described axial translatory plate of described case body, for supporting described pressure transducer, make to form interval between described pressure transducer and described case body, described axial translatory plate.
Further: the center of described cover plate is provided with cover plate through hole.
Further, described pressure sensor protecting equipment also comprises: axial advance bar, it,, through described cover plate through hole, moves vertically for promoting described axial translatory plate.
Further: described cover plate through hole is fixedly connected with described axial advance bar by screw thread, for the position of fixing described axial translatory plate.
Further: the center of described axial translatory plate is provided with translatory plate through hole, for making sensor conductor pass described translatory plate through hole, be connected with described pressure transducer.
Further: described axial advance bar is hollow structure, for holding described sensor conductor.
Further: the external diameter of described axial advance bar is greater than the external diameter of described translatory plate through hole.
Another technical matters to be solved by this invention is that the method that weakens mechanics disturbance of the pressure sensor protecting equipment that obtains of existing assemble method is single and specific environment is poor for applicability.
Another technical scheme of the present invention is as follows:
An assemble method for pressure sensor protecting equipment as above, comprising: a plurality of elastic bodys are arranged on the inwall and axial translatory plate of case body; Pressure transducer is put into described case body, make the sensor conductor of described pressure transducer successively through translatory plate through hole, cover plate through hole and axial advance bar; Described axial translatory plate is placed in described case body; The opening part of cover plate and described case body is fixedly connected with; Through described cover plate through hole, one end of described axial advance bar is contacted with described axial translatory plate axial advance bar; Rotation advances described axial advance bar, promote described axial translatory plate, make the inwall of described pressure transducer and described case body and the tight crimping of elastic body on described axial translatory plate, between described pressure transducer and described case body, described axial translatory plate, form interval; By the screw thread in described cover plate through hole, the position of described axial advance bar is locked, completes the assembling of described pressure sensor protecting equipment.
Technique effect of the present invention is as follows:
1, the interval between pressure transducer of the present invention and case body, axial translatory plate, has avoided long-term or instantaneous mechanics disturbance to impact the measuring accuracy of sensor.
2, the interval between pressure transducer of the present invention and case body, axial translatory plate has delayed the impact of ambient temperature variation on pressure transducer.
3, pressure sensor protecting equipment of the present invention has overcome the defect that existing pressure transducer is subject to extraneous mechanics disturbance, can be used in the surveying work of air pressure and hydraulic pressure under Complicated Loads environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of pressure sensor protecting equipment of the present invention.
Embodiment
As shown in Figure 1, be the structural representation of pressure sensor protecting equipment of the present invention.The structure of this pressure sensor protecting equipment comprises the cover plate being fixedly connected with 3 of case body 1 and opening part thereof.The tubular construction that case body 1 is hollow, for hold pressure unit 5.The internal diameter of case body 1 is greater than the external diameter of pressure transducer 5, to form gap between the medial surface of case body 1 and pressure transducer 5.This gap is chosen according to the material of case body 1 and mechanics disturbance type, size.This gap is generally greater than 0.1mm.Case body 1 can be fixedly connected with cover plate 3 by screw thread, also can be fixedly connected with by alternate manner.This case body 1 can be changed its material according to the requirement of complex environment.
In case body 1, be provided with axial translatory plate 2, for moving axially of limiter pressure sensor 5.This pressure sensor protecting equipment also comprises a plurality of elastic bodys 6.A plurality of elastic bodys 6 are arranged on the inwall and axial translatory plate 2 of case body 1, for abutment pressure sensor 5, make between pressure transducer 5 and case body 1, to flexibly connect and reach sealing effectiveness, and make pressure transducer 5 and case body 1, axially between translatory plate 2, form interval 7, to eliminate the impact of mechanics disturbance on pressure transducer 5.Due to the existence at interval 7, long-term or instantaneous mechanics disturbance can not impact the measuring accuracy of pressure transducer 5.Meanwhile, interval 7 changes ambient temperature and can not have influence on fast pressure transducer 5.Elastic body 6 can weaken the impact of axial mechanics disturbance on pressure transducer 5.Elastic body 6 can arrange according to the shape of case body 1, guarantees that mechanics disturbance is directly passed to pressure transducer 5 itself by elastic body 6 unaffected or affect minimum part.In a preferred embodiment of the present invention, elastic body 6 is arranged on the upper surface of inwall of case body 1 and axially on the upper surface of translatory plate 2.
The center of cover plate 3 is provided with cover plate through hole.This pressure sensor protecting equipment also comprises axial advance bar 4.Axial advance bar 4, through cover plate through hole, moves to translatory plate 2 vertically for impeller-hub.Cover plate through hole is fixedly connected with axial pushing ram 4, the position for stationary shaft to translatory plate 2 by screw thread.
Axially the center of translatory plate 2 is provided with translatory plate through hole, for making sensor conductor pass translatory plate through hole, is connected with pressure transducer 5.Axial advance bar 4 is hollow structure, for holding sensor conductor.The external diameter of axial advance bar 4 is greater than the external diameter of translatory plate through hole, to avoid axial advance bar 4 through translatory plate through hole.
While using above-mentioned pressure sensor protecting equipment, need to first assemble, the assemble method of this pressure sensor protecting equipment is as follows:
A plurality of elastic bodys 6 are arranged on the inwall and axial translatory plate 2 of case body 1; Pressure transducer 5 is put into case body 1, make the sensor conductor of pressure transducer 5 successively through translatory plate through hole, cover plate through hole and axial advance bar 4; Axial translatory plate 2 is placed in case body 1; Cover plate 3 is fixedly connected with the opening part of case body 1; Through cover plate through hole, one end of axial advance bar 4 is contacted with axial translatory plate 2 axial advance bar 4; Rotation cardan shaft is to pushing ram 4, and impeller-hub, to translatory plate 2, makes the inwall of pressure transducer 5 and case body 1 and the tight crimping of elastic body 6 on axial translatory plate 2, between pressure transducer 5 and case body 1, axial translatory plate 2, forms interval 7; By the screw thread in cover plate through hole, the position of axial advance bar 4 is locked, completes the assembling of pressure sensor protecting equipment.
The installation steps of pressure sensor protecting equipment of the present invention are simple, and can change flexibly according to particular surroundings, because sealing is better, can be used for the measurement of air pressure and hydraulic pressure under Complicated Loads environment.Sensor that this pressure sensor protecting equipment can also be applicable to be subject to mechanics disturbing influence is as piezoelectric sensor, piezoresistance sensor etc.
Claims (10)
1. a pressure sensor protecting equipment, is characterized in that, comprises the cover plate being fixedly connected with of case body and opening part thereof, and the tubular construction that described case body is hollow, for hold pressure unit.
2. pressure sensor protecting equipment as claimed in claim 1, is characterized in that: in the tubular construction of described case body, be provided with axial translatory plate, for limiting moving axially of described pressure transducer.
3. pressure sensor protecting equipment as claimed in claim 2; it is characterized in that; also comprise: a plurality of elastic bodys; be arranged on the inwall and described axial translatory plate of described case body; be used for supporting described pressure transducer, make to form interval between described pressure transducer and described case body, described axial translatory plate.
4. pressure sensor protecting equipment as claimed in claim 2, is characterized in that: the center of described cover plate is provided with cover plate through hole.
5. pressure sensor protecting equipment as claimed in claim 4, is characterized in that, also comprises: axial advance bar, it,, through described cover plate through hole, moves vertically for promoting described axial translatory plate.
6. pressure sensor protecting equipment as claimed in claim 5, is characterized in that: described cover plate through hole is fixedly connected with described axial advance bar by screw thread, for the position of fixing described axial translatory plate.
7. pressure sensor protecting equipment as claimed in claim 2, is characterized in that: the center of described axial translatory plate is provided with translatory plate through hole, for making sensor conductor pass described translatory plate through hole, is connected with described pressure transducer.
8. pressure sensor protecting equipment as claimed in claim 7, is characterized in that: described axial advance bar is hollow structure, for holding described sensor conductor.
9. pressure sensor protecting equipment as claimed in claim 8, is characterized in that: the external diameter of described axial advance bar is greater than the external diameter of described translatory plate through hole.
10. an assemble method for pressure sensor protecting equipment as claimed in claim 1, is characterized in that, comprising:
A plurality of elastic bodys are arranged on the inwall and axial translatory plate of case body;
Pressure transducer is put into described case body, make the sensor conductor of described pressure transducer successively through translatory plate through hole, cover plate through hole and axial advance bar;
Described axial translatory plate is placed in described case body;
The opening part of cover plate and described case body is fixedly connected with;
Through described cover plate through hole, one end of described axial advance bar is contacted with described axial translatory plate axial advance bar;
Rotation advances described axial advance bar, promote described axial translatory plate, make the inwall of described pressure transducer and described case body and the tight crimping of elastic body on described axial translatory plate, between described pressure transducer and described case body, described axial translatory plate, form interval;
By the screw thread in described cover plate through hole, the position of described axial advance bar is locked, completes the assembling of described pressure sensor protecting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739575.0A CN103712735A (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protection device and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739575.0A CN103712735A (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protection device and assembly method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103712735A true CN103712735A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310739575.0A Pending CN103712735A (en) | 2013-12-26 | 2013-12-26 | Pressure sensor protection device and assembly method thereof |
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| CN (1) | CN103712735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643142A (en) * | 2017-09-21 | 2018-01-30 | 重庆集元科技有限公司 | High stability set casing for tension force transmitter |
| CN108036891A (en) * | 2018-01-26 | 2018-05-15 | 上海歌尔泰克机器人有限公司 | A kind of baroceptor safeguard structure, barometer and unmanned plane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040297A (en) * | 1974-12-02 | 1977-08-09 | U.S. Philips Corporation | Pressure transducer |
| CN1147631A (en) * | 1995-08-28 | 1997-04-16 | 推进欧洲公司 | Architecture integrating sensing element into high pressure sensor |
| CN1829905A (en) * | 2003-07-29 | 2006-09-06 | 恩德莱斯和豪瑟尔两合公司 | Pressure sensor |
| CN103134631A (en) * | 2011-11-30 | 2013-06-05 | 通用电气公司 | Pressure sensor assembly |
| CN203629745U (en) * | 2013-12-26 | 2014-06-04 | 中国水利水电科学研究院 | Pressure sensor protecting device |
-
2013
- 2013-12-26 CN CN201310739575.0A patent/CN103712735A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040297A (en) * | 1974-12-02 | 1977-08-09 | U.S. Philips Corporation | Pressure transducer |
| CN1147631A (en) * | 1995-08-28 | 1997-04-16 | 推进欧洲公司 | Architecture integrating sensing element into high pressure sensor |
| CN1829905A (en) * | 2003-07-29 | 2006-09-06 | 恩德莱斯和豪瑟尔两合公司 | Pressure sensor |
| CN103134631A (en) * | 2011-11-30 | 2013-06-05 | 通用电气公司 | Pressure sensor assembly |
| CN203629745U (en) * | 2013-12-26 | 2014-06-04 | 中国水利水电科学研究院 | Pressure sensor protecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643142A (en) * | 2017-09-21 | 2018-01-30 | 重庆集元科技有限公司 | High stability set casing for tension force transmitter |
| CN108036891A (en) * | 2018-01-26 | 2018-05-15 | 上海歌尔泰克机器人有限公司 | A kind of baroceptor safeguard structure, barometer and unmanned plane |
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Application publication date: 20140409 |