CN201392258Y - Strain side sealing pressure sensor core - Google Patents
Strain side sealing pressure sensor core Download PDFInfo
- Publication number
- CN201392258Y CN201392258Y CN200920032932U CN200920032932U CN201392258Y CN 201392258 Y CN201392258 Y CN 201392258Y CN 200920032932 U CN200920032932 U CN 200920032932U CN 200920032932 U CN200920032932 U CN 200920032932U CN 201392258 Y CN201392258 Y CN 201392258Y
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- CN
- China
- Prior art keywords
- elastic body
- strain
- stuck
- groove
- pressure sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a strain side sealing pressure sensor core, which comprises a cylindrical elastic body 3, wherein the top end of the elastic body 3 is stuck with a strain film 2; a strain meter 1 is stuck on the strain film 2; a locking ring 4 is arranged at the outer surface of the upper end of the elastic body 3; a groove 5 is arranged outside the lower end of the elastic body 3; a sealing ring 6 is wound on the groove 5; the elastic body 3 can cause elastic deformation under the external force, so that the strain film 2 and the strain meter 1 that are stuck at the surface of the elastic body 3 can be deformed, and the generated resistance due to the change can be changed into an electrical signal by a corresponding measuring circuit; the elastic body 3 is in a suspension state in an application base sensor shell and is not stressed at the periphery, thereby avoiding the measuring error due to the metal stress caused in the installation and using processes by adopting other methods.
Description
Technical field
The utility model relates to the electronic measurement and control instrument and makes field, particularly a kind of strain-type side seal pressure transducer core body.
Background technology:
At present existing strain pressure transducer core body is very tight to machining precision and process Installation quality requirements, and the big erection stress that produces all can affact on the strain films, the multinomial precision index of sensor and long-time stability is produced have a strong impact on.
Summary of the invention:
In order to overcome the defective of prior art, the purpose of this utility model is to provide a kind of strain-type side seal pressure transducer core body, use retaining ring to be placed in the applied environment pedestal, by the perception medium pressure signal and be converted to electric signal output, realize test the pressure medium parameter.The utility model has overcome the influence of sensing erection stress to strain films, has improved the precision and the stability of sensor.
In order to achieve the above object, the technical solution of the utility model is:
Strain-type side seal pressure transducer core body, comprise an Elastic Cylindrical body 3, be pasted with strain films 2 on the top of elastic body 3, be pasted with strainometer 1 on the strain films 2, it is characterized in that, the upper end outside surface of elastic body 3 is provided with retaining ring 4, and the outside, lower end of elastic body 3 has groove 5, is wound with O-ring seal 6 on the groove 5.
The diameter of described O-ring seal is greater than the diameter of elastic body 3.
Because the arranged outside of elastic body 3 has O-ring seal, in actual the use, when the utility model placed the application pedestal, elastic body 3 did not contact with the application pedestal and has also realized sealing by O-ring seal; Owing to be provided with retaining ring 4, when the utility model placed the application pedestal, available retaining ring 4 was locked, and it is fixing to need not welding.
Description of drawings
Accompanying drawing is a structural principle cut-open view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in detail.
With reference to accompanying drawing, strain-type side seal pressure transducer core body, comprise an Elastic Cylindrical body 3, be pasted with strain films 2 on the top of elastic body 3, be pasted with strainometer 1 on the strain films 2, it is characterized in that, the upper end outside surface of elastic body 3 is provided with retaining ring 4, the outside, lower end of elastic body 3 has groove 5, is wound with O-ring seal 6 on the groove 5, and the diameter of O-ring seal is greater than the diameter of elastic body 3.
Principle of work of the present utility model is: the utility model is placed use pedestal, elastic body 3 does not contact with using pedestal, but O-ring seal does not contact and realized sealing with the application pedestal; Be locked with retaining ring 4 and application pedestal, elastic body 3 produces elastic deformation under external force, the strain films 2, the strainometer 1 that stick on his surface also are out of shape in company with producing, be the resistance conversion that this variation produces electric signal through corresponding metering circuit again, thereby finished the process that external force is transformed to electric signal.
Claims (2)
1, strain-type side seal pressure transducer core body, comprise an Elastic Cylindrical body (3), be pasted with strain films (2) on the top of elastic body (3), be pasted with strainometer (1) on the strain films (2), it is characterized in that, the upper end outside surface of elastic body (3) is provided with retaining ring (4), and the outside, lower end of elastic body (3) has groove (5), is wound with O-ring seal (6) on the groove (5).
2, strain-type side seal pressure transducer core body according to claim 1 is characterized in that the diameter of described O-ring seal (6) is greater than the diameter of elastic body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032932U CN201392258Y (en) | 2009-05-04 | 2009-05-04 | Strain side sealing pressure sensor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920032932U CN201392258Y (en) | 2009-05-04 | 2009-05-04 | Strain side sealing pressure sensor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392258Y true CN201392258Y (en) | 2010-01-27 |
Family
ID=41599079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920032932U Expired - Fee Related CN201392258Y (en) | 2009-05-04 | 2009-05-04 | Strain side sealing pressure sensor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392258Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117490910A (en) * | 2024-01-03 | 2024-02-02 | 西安中星测控有限公司 | High-precision MCS pressure sensor and manufacturing method |
-
2009
- 2009-05-04 CN CN200920032932U patent/CN201392258Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117490910A (en) * | 2024-01-03 | 2024-02-02 | 西安中星测控有限公司 | High-precision MCS pressure sensor and manufacturing method |
| CN117490910B (en) * | 2024-01-03 | 2024-04-12 | 西安中星测控有限公司 | High-precision MCS pressure sensor and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20110504 |