CN201392258Y - Strain side sealing pressure sensor core - Google Patents

Strain side sealing pressure sensor core Download PDF

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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
Authority
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
Application number
CN200920032932U
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Chinese (zh)
Inventor
苗瑞峰
张科选
刘兴哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoji Saisuo Electronic Technology Co Ltd
Original Assignee
Baoji Saisuo Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoji Saisuo Electronic Technology Co Ltd filed Critical Baoji Saisuo Electronic Technology Co Ltd
Priority to CN200920032932U priority Critical patent/CN201392258Y/en
Application granted granted Critical
Publication of CN201392258Y publication Critical patent/CN201392258Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Strain-type side seal pressure transducer core body
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.
Elastic body 3 is a suspended state in using the pedestal sensor housing, does not stress all around, avoids other modes installing, and use produces stress, causes because the measuring error that metal stresses produces.

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).
CN200920032932U 2009-05-04 2009-05-04 Strain side sealing pressure sensor core Expired - Fee Related CN201392258Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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