CN201075044Y - Access type pressure transducer - Google Patents
Access type pressure transducer Download PDFInfo
- Publication number
- CN201075044Y CN201075044Y CNU200720178155XU CN200720178155U CN201075044Y CN 201075044 Y CN201075044 Y CN 201075044Y CN U200720178155X U CNU200720178155X U CN U200720178155XU CN 200720178155 U CN200720178155 U CN 200720178155U CN 201075044 Y CN201075044 Y CN 201075044Y
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- Prior art keywords
- pressure
- cone
- dome
- bearing
- sensor
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- Expired - Fee Related
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
An access type pressure sensor is used for testing the pre-stretching stress of a pre-stressed component, the bearing load and other pressure loads of a bridge. The utility model includes an upper convex cone and a lower convex cone which are contacted with a pressure object, the middle of the upper convex cone and the lower convex cone is provided with a pressure bearing ring, a resistance strain gauge is stuck on a cylindrical surface, the upper and the lower convex cones and the middle pressure bearing ring are connected with a sealing cover to constitute a whole body. When in use, the pressure sensor is accessed in a structure part for measuring loads, the charge of the resistance strain gauge is changed by the function of the pulling force which is generated on the pressure bearing ring by making use of the pressure which is acted on the upper and the lower convex cones, and the variable quantity is reflected by a balance electrical bridge and a detection instrument. The sensor has small size, convenient processing and low manufacturing cost. The installation is easy and can be accessed in the structure part directly, so the utility model can carry out long-term tracking and monitoring of the pressure-bearing status, further to facilitate testing works.
Description
Technical field
The utility model relates to Accessible Pressure Sensor, be used to test a kind of novel pressure transducer of pre-tensile stress, bridge supporting load and other compressive load of prestressed component.
Technical background
At present, the shape of pressure transducer is generally cylindric, is pasted with resistance strain gage at the middle part of cylinder, resistance strain gage and external circuit Compositional balance electric bridge.When pressure transducer was under pressure, sensor produced compression deformation, causes that the shape of resistance strain gage morphs, and cause changes in resistance, cause the variation of voltage, cause the imbalance of balanced bridge, can measure the variable quantity of voltage and derive the stressed size of pressure transducer.For eliminating the influence of load pressure-bearing surface friction force to the pressure transducer measuring accuracy, the height value of sensor reaches more than the twice of its diameter.When bearing pressure was big, the volume of sensor was corresponding also big, and it is embedded in the structure of measuring load, had just run into difficulty as the member of the prestressed cable of bridge.Therefore, be necessary the height of the pressure transducer of large volume is descended greatly, it can be installed in the works, satisfy the needs of test bridge cable pulling force, steeve tension, bridge pad counter-force etc.
The content of utility model
The purpose of this utility model provides a kind of Accessible Pressure Sensor, is used to test bridge cable pulling force, steeve tension, bridge pad counter-force equivalent-load power.This sensor bulk is little, highly low, easy for installation, can insert in structural member, and the structural member force-bearing situation is carried out long-term tracking, monitoring.
The purpose of this utility model is achieved in that a kind of Accessible Pressure Sensor, it is characterized in that: include the upper and lower dome cone that contacts with the object of exerting pressure, the upper surface of epirelief cone is the plane, is the dome conical surface below; Equally, the upper surface of following dome cone is the dome conical surface, is the plane below, is provided with the pressure-bearing annulus in the centre of upper and lower dome cone, and the above and below of pressure-bearing annulus is recessed circular conical surface, and the side is the face of cylinder, and is pasted with resistance strain gage on the face of cylinder.Be connected with seal closure at upper and lower dome cone and middle pressure-bearing annulus and constitute an integral body.
Surface of contact between surface of contact between epirelief cone and the pressure-bearing annulus and pressure-bearing annulus and the following dome cone is circular conical surface.
Epirelief cone, following dome cone and middle pressure-bearing annulus are made by metal material.
Centre in upper and lower dome cone is provided with through hole, and this through hole can be single hole or porous.
Accessible Pressure Sensor of the present utility model inserts in measuring the load structural member, as be embedded in the prestressed cable structural member of measuring bridge, utilization acts on, the pressure of following dome cone produces a radial component to middle pressure-bearing annulus, the lateral surface of pressure-bearing annulus was subjected to the effect of pulling force in the middle of this radial component made, cause the strain gauge element that is attached to above it such as the variation of resistance strain gage electric weight, this variable quantity can be measured by balanced bridge (as Huygens's electric bridge), and reflect by detector, just can ask the pressure size that obtains acting on the sensor.The size of annulus pulling force that lateral surface bears is directly relevant with the pressure size on acting on sensor.
Characteristics of the present utility model are that it is the cooperation that utilizes upper and lower circular conical surface and middle tapered annulus, and its interference that is subjected to frictional resistance is little, and this sensor bulk is little, easy to process, and manufacturing expense is low.Easy for installation, can directly insert in structural member, can carry out long-term tracking, monitoring to its force-bearing situation, it is convenient to bring to test job.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the single hole structural drawing;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is porous structure figure;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the structural drawing of user mode.
Wherein 1, the epirelief cone, 2, pressure-bearing annulus, 3, dome cone down, 4, resistance strain gage, 5, seal closure, 6, through hole, 10, bridge, 11, Accessible Pressure Sensor, 12, bridge pad, 13, bridge pier.
Embodiment
In conjunction with the accompanying drawings structure of the present utility model is specified:
Accessible Pressure Sensor of the present utility model comprises by epirelief cone 1, pressure-bearing annulus 2, following dome cone 3, resistance strain gage 4 and seal closure 5 and forming.The upper surface of epirelief cone 1 is the plane, is the dome conical surface below; Equally, the upper surface of following dome cone 3 is the dome conical surface, is the plane below, be provided with pressure-bearing annulus 2 in the centre of upper and lower dome cone, the above and below of pressure-bearing annulus 2 is recessed circular conical surface, and the side is the face of cylinder, and is pasted with resistance strain gage 4 on the face of cylinder.Upper and lower dome cone 1,3 and middle pressure-bearing annulus 2 are connected with seal closure 5 and constitute an integral body.
Surface of contact between epirelief cone 1 and the pressure-bearing annulus 2 and pressure-bearing annulus 2 are that circular conical surface contacts with surface of contact between the following dome cone 3; Seal closure 5 can be by being threaded or being adhesively fixed on dome cone 1 and dome cone 3.
The upper and lower dome cone 1,3 of this pressure transducer is solid construction (claiming non-porous structure usually), and the pressure transducer of non-porous structure can be used for the pressure test of non-punching structural member, as the test of bearing reaction etc.; In order to adapt to the measurement of different bearer object, also be provided with through hole in the middle of the upper and lower dome cone 1,3 of pressure transducer of the present utility model, through hole can be single hole or porous.The single hole structure can be used for the test of single rope of punching or single pole pulling force, as the test of the prestress steeve tension of bridge etc.; Porous can be used for the test of the prestressed cable pulling force that many steel strand wires of punching form etc.
Concrete user mode of the present utility model (seeing Figure of description 7 for details): pressure transducer of the present utility model is inserted and will carry out in the structural member of load test, as be connected position between bridge 11 and the bridge pad 13.When the acting force of bridge (have be referred to as bearing capacity) when pressing on the sensor of the present utility model, act on the pressure-bearing annulus 2 by epirelief cone 1 and following dome cone 3, because epirelief cone 1, adopt the circular conical surface contact between following dome cone 3 and the pressure-bearing annulus 2, the pressure of epirelief cone 1 and following dome cone 3 produces a radial component to pressure-bearing annulus 2, this radial component can make the lateral surface of pressure-bearing annulus 2 be subjected to the effect of a pulling force, the size of pulling force is relevant with the pressure size on acting on sensor, pulling force on the pressure-bearing annulus 2 will cause the variation of strain gauge element (the being resistance strain gage 4) electric weight that is attached on its side, this variable quantity can be measured by balanced bridge and detector, can obtain acting on the size of sensor upward pressure (or supporting power).
Claims (5)
1. Accessible Pressure Sensor, it is characterized in that: include the upper and lower dome cone that contacts with the object of exerting pressure, the upper surface of epirelief cone is the plane, is the dome conical surface below, and the upper surface of following dome cone is the dome conical surface, is the plane below; Be provided with the pressure-bearing annulus in the centre of upper and lower dome cone, the above and below of pressure-bearing annulus is recessed circular conical surface, the side is the face of cylinder, is pasted with resistance strain gage on the face of cylinder, is connected with seal closure at upper and lower dome cone and middle pressure-bearing annulus and constitutes an integral body.
2. Accessible Pressure Sensor according to claim 1 is characterized in that surface of contact between epirelief cone and the pressure-bearing annulus and the surface of contact between pressure-bearing annulus and the following dome cone are circular conical surface.
3. Accessible Pressure Sensor according to claim 1 is characterized in that the centre of upper and lower dome cone is provided with through hole.
4. Accessible Pressure Sensor according to claim 3 is characterized in that through hole can be single hole or porous.
5. Accessible Pressure Sensor according to claim 1 is characterized in that the epirelief cone, descends dome cone and pressure-bearing annulus to make by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720178155XU CN201075044Y (en) | 2007-10-11 | 2007-10-11 | Access type pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720178155XU CN201075044Y (en) | 2007-10-11 | 2007-10-11 | Access type pressure transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075044Y true CN201075044Y (en) | 2008-06-18 |
Family
ID=39520303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720178155XU Expired - Fee Related CN201075044Y (en) | 2007-10-11 | 2007-10-11 | Access type pressure transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075044Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032959A (en) * | 2010-11-23 | 2011-04-27 | 北京铁科首钢轨道技术有限公司 | Vertical intelligent force measurement support |
| CN103323155A (en) * | 2013-05-31 | 2013-09-25 | 李建华 | Tension sensor and system for container |
| CN103743506A (en) * | 2014-01-16 | 2014-04-23 | 上海理工大学 | Load measuring device and measuring method thereof |
| CN103913260A (en) * | 2014-04-17 | 2014-07-09 | 西北工业大学 | Pressure testing sensor for resistance spot welding |
| CN106120547A (en) * | 2016-08-24 | 2016-11-16 | 洛阳双瑞特种装备有限公司 | A kind of vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation |
| CN109171102A (en) * | 2018-10-29 | 2019-01-11 | 深圳市科迈爱康科技有限公司 | Intelligent shoe and its middle bed die group |
| CN112629732A (en) * | 2020-11-24 | 2021-04-09 | 湖南道达宇科技有限公司 | Embedded cable force sensor |
| CN114235235A (en) * | 2020-09-09 | 2022-03-25 | 同济大学 | Intelligent wireless pressure sensor for micro-energy collection and pressure detection method |
-
2007
- 2007-10-11 CN CNU200720178155XU patent/CN201075044Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032959A (en) * | 2010-11-23 | 2011-04-27 | 北京铁科首钢轨道技术有限公司 | Vertical intelligent force measurement support |
| CN102032959B (en) * | 2010-11-23 | 2012-10-10 | 北京铁科首钢轨道技术有限公司 | Vertical intelligent force measurement support |
| CN103323155A (en) * | 2013-05-31 | 2013-09-25 | 李建华 | Tension sensor and system for container |
| CN103323155B (en) * | 2013-05-31 | 2016-04-20 | 李建华 | Container Special pull sensor and system |
| CN103743506B (en) * | 2014-01-16 | 2016-03-23 | 上海理工大学 | A kind of load-measuring device and measuring method thereof |
| CN103743506A (en) * | 2014-01-16 | 2014-04-23 | 上海理工大学 | Load measuring device and measuring method thereof |
| CN103913260B (en) * | 2014-04-17 | 2016-01-06 | 西北工业大学 | Resistance spot welding pressure test sensor |
| CN103913260A (en) * | 2014-04-17 | 2014-07-09 | 西北工业大学 | Pressure testing sensor for resistance spot welding |
| CN106120547A (en) * | 2016-08-24 | 2016-11-16 | 洛阳双瑞特种装备有限公司 | A kind of vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation |
| CN106120547B (en) * | 2016-08-24 | 2018-05-01 | 洛阳双瑞特种装备有限公司 | A kind of vertical force measurement type hyperboloid spheroidal bearer of shock absorption and insulation |
| CN109171102A (en) * | 2018-10-29 | 2019-01-11 | 深圳市科迈爱康科技有限公司 | Intelligent shoe and its middle bed die group |
| CN114235235A (en) * | 2020-09-09 | 2022-03-25 | 同济大学 | Intelligent wireless pressure sensor for micro-energy collection and pressure detection method |
| CN112629732A (en) * | 2020-11-24 | 2021-04-09 | 湖南道达宇科技有限公司 | Embedded cable force sensor |
| CN112629732B (en) * | 2020-11-24 | 2022-08-26 | 衡通华创(北京)科技有限公司 | Embedded cable force sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Bo Rong thoroughfare Technology Co. Ltd. Assignor: Li Lianxiu Contract fulfillment period: 2008.12.15 to 2017.10.11 Contract record no.: 2009990000182 Denomination of utility model: Access type pressure transducer Granted publication date: 20080618 License type: Exclusive license Record date: 20090311 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.15 TO 2017.10.11; CHANGE OF CONTRACT Name of requester: BEIJING BORONGTONGTU SCIENCE CO., LTD. Effective date: 20090311 |
|
| 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: 20080618 Termination date: 20161011 |