CN107966222A - A kind of friction-type pressure sensor - Google Patents
A kind of friction-type pressure sensor Download PDFInfo
- Publication number
- CN107966222A CN107966222A CN201711180563.3A CN201711180563A CN107966222A CN 107966222 A CN107966222 A CN 107966222A CN 201711180563 A CN201711180563 A CN 201711180563A CN 107966222 A CN107966222 A CN 107966222A
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- CN
- China
- Prior art keywords
- friction
- springing
- lid
- pressure sensor
- working chamber
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of friction-type pressure sensor, using springing lid as contact pressure area, i.e., under the pressure sensor working status, springing lid compression deformation is so as to promote pillar to be moved to bottom plate, so that bulge and block frictional heat, cause the temperature inside working chamber to rise.Then by detecting the change in resistance of hot water radiation wire, can monitoring intracavitary temperature change, so as to judge the deformation quantity of springing lid.In this way, in the present invention, thermal energy is converted kinetic energy into by friction, the monitoring to temperature change will be converted to the monitoring of springing lid compression deformation, reduces detection difficulty, improve accuracy of detection.
Description
Technical field
The present invention relates to sensor technical field, more particularly to a kind of friction-type pressure sensor.
Background technology
Existing thermal resistance pressure sensor is the heat that air acting generation is extruded when being moved by elastic component to thermoelectricity
The influence of resistance calculates pressure value to measure.When elastic component is pressurized, the volume of pressure sensor is limited to, deformation quantity is small, extruding
Air acting is limited, the temperature of thermal resistance environment is changed it is small, so, existing thermal resistance pressure sensor in smart sensitivity and
Use scope upper limit value is big.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of friction-type pressure sensor.
A kind of friction-type pressure sensor proposed by the present invention, including：Cylinder, base, springing lid, pillar, hot water radiation wire
And block；
Cylinder is installed on base and forms working chamber, and springing lid is installed on the one end of cylinder away from base and covers work
Chamber；
Block is installed on base and in working chamber, and block is equipped with friction lumen of the opening towards springing lid；
Pillar is covered installed in springing and is located in working chamber, and outwards expansion forms bulge and is inserted into friction on the top of pillar
Chamber, the outside diameter of bulge are equal to the internal diameter of friction lumen；There is gap between bulge and friction lumen bottom；
Hot water radiation wire is wrapped on pillar.
Preferably, cylinder is integrally formed with base.
Preferably, springing lid is bonded on cylinder by adhesive.
Preferably, it is coated with heat resistant layer in working chamber.
Pressure sensor provided by the invention is using springing lid as contact pressure area, i.e. the pressure sensor working status
Under, springing lid compression deformation is so as to promote pillar to be moved to bottom plate so that bulge and block frictional heat, cause inside working chamber
Temperature rise.Then by detecting the change in resistance of hot water radiation wire, can monitoring intracavitary temperature change, so as to judge bullet
The deformation quantity of dynamic lid.
In this way, in the present invention, thermal energy is converted kinetic energy into by friction, the monitoring of springing lid compression deformation will be converted to
Monitoring to temperature change, reduces detection difficulty, improves accuracy of detection.
In the present invention, pillar top is expanded into bulge, by bulge and friction cavity wall friction, reduces friction area,
So as to reduce the excessive influence that frictional resistance becomes springing cap-shaped, guarantee has dynamic friction generation, to the hot water radiation wire reaction time.
Brief description of the drawings
Fig. 1 is a kind of friction-type pressure sensor structure figure proposed by the present invention.
Embodiment
Reference Fig. 1, a kind of friction-type pressure sensor proposed by the present invention, including：It is cylinder 1, base 2, springing lid 3, convex
Column 4, hot water radiation wire 5 and block 6.
Cylinder 1 is installed on base 2 and forms working chamber 10.Springing lid 3 is installed on the one end of cylinder 1 away from base 2 simultaneously
Working chamber 10 is covered, so as to be sealed to working chamber 10.Specifically, springing lid 3 can be bonded on cylinder 1 by adhesive,
Cylinder 1 be bonded with base 2 can be also integrally formed.
Block 6 is installed on base 2 and in working chamber 10, and block 6 is equipped with friction lumen of the opening towards springing lid 3
60。
Pillar 4 is installed on springing lid 3 and in working chamber 10, and outwards expansion forms bulge 40 simultaneously on the top of pillar 4
Friction lumen 60 is inserted into, the outside diameter of bulge 40 is equal to the internal diameter of friction lumen 60, so that both match.Bulge 40 and 60 bottom of friction lumen
There is gap between portion.In this way, pillar 4 is on the direction of 60 depth of friction lumen when moving, bulge 40 with friction lumen 60
Wall rubs.
The pressure sensor that present embodiment provides is using springing lid 3 as contact pressure area, i.e. the pressure sensor work
Make under state, the 3 compression deformation of springing lid is so as to promote pillar 4 to be moved to base so that bulge 40 and 6 frictional heat of block, lead
The temperature inside working chamber 10 is caused to rise.
Hot water radiation wire 5 is wrapped on pillar 4, can be in monitoring chamber 10 by detecting the change in resistance of hot water radiation wire 5
Temperature change, so as to judge the deformation quantity of springing lid 3.
In this way, in present embodiment, thermal energy is converted kinetic energy into by friction, by the monitoring to the 3 compression deformation of springing lid
The monitoring to temperature change is converted to, reduces detection difficulty, improves accuracy of detection.
In present embodiment, heat resistant layer is coated with working chamber 10, is scattered and disappeared to avoid the temperature in working chamber 10, further
Ensure that the change in resistance of hot water radiation wire 5 is consistent with 3 deformation of springing lid.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
- A kind of 1. friction-type pressure sensor, it is characterised in that including：Cylinder (1), base (2), springing lid (3), pillar (4), Hot water radiation wire (5) and block (6)；Cylinder (1) is installed on base (2) and forms working chamber (10), and springing lid (3) is installed on cylinder (1) away from base (2) One end and cover working chamber (10)；Block (6) is installed on base (2) and in working chamber (10), and block (6) is equipped with opening towards springing lid (3) Friction lumen (60)；Pillar (4) is installed on springing lid (3) and in working chamber (10), and outwards expansion forms bulge on the top of pillar (4) (40) and friction lumen (60) is inserted into, the outside diameter of bulge (40) is equal to the internal diameter of friction lumen (60)；Bulge (40) and friction lumen (60) There is gap between bottom；Hot water radiation wire (5) is wrapped on pillar (4).
- 2. friction-type pressure sensor as claimed in claim 1, it is characterised in that cylinder (1) is integrally formed with base (2).
- 3. friction-type pressure sensor as claimed in claim 1, it is characterised in that springing lid (3) is bonded in by adhesive On cylinder (1).
- 4. such as claims 1 to 3 any one of them friction-type pressure sensor, it is characterised in that coating in working chamber (10) There is heat resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180563.3A CN107966222A (en) | 2017-11-23 | 2017-11-23 | A kind of friction-type pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180563.3A CN107966222A (en) | 2017-11-23 | 2017-11-23 | A kind of friction-type pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107966222A true CN107966222A (en) | 2018-04-27 |
Family
ID=62001545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711180563.3A Pending CN107966222A (en) | 2017-11-23 | 2017-11-23 | A kind of friction-type pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966222A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476959A (en) * | 2009-01-23 | 2009-07-08 | 谢大刚 | Ultra-high pressure intelligent pressure transmitter |
| CN102288516A (en) * | 2011-06-29 | 2011-12-21 | 西安交通大学 | Integrated fluid sensor capable of simultaneously measuring density, pressure and temperature of fluid based on micro-electromechanical system (MEMS) technology |
| CN203443713U (en) * | 2013-07-12 | 2014-02-19 | 纳米新能源（唐山）有限责任公司 | Pressure transducer based on friction power generation |
| CN106482889A (en) * | 2015-08-28 | 2017-03-08 | 鸿富锦精密工业（深圳）有限公司 | Pressure transducer |
| CN106610324A (en) * | 2015-11-27 | 2017-05-03 | 北京纳米能源与系统研究所 | Pressure sensor based on triboelectricity |
| CN107014551A (en) * | 2017-06-01 | 2017-08-04 | 东南大学 | The pressure sensor and its method of work of a kind of utilization thermal resistance principle |
| CN107255542A (en) * | 2012-09-07 | 2017-10-17 | 丹尼斯科工具有限公司 | Pressure sensor |
-
2017
- 2017-11-23 CN CN201711180563.3A patent/CN107966222A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476959A (en) * | 2009-01-23 | 2009-07-08 | 谢大刚 | Ultra-high pressure intelligent pressure transmitter |
| CN102288516A (en) * | 2011-06-29 | 2011-12-21 | 西安交通大学 | Integrated fluid sensor capable of simultaneously measuring density, pressure and temperature of fluid based on micro-electromechanical system (MEMS) technology |
| CN107255542A (en) * | 2012-09-07 | 2017-10-17 | 丹尼斯科工具有限公司 | Pressure sensor |
| CN203443713U (en) * | 2013-07-12 | 2014-02-19 | 纳米新能源（唐山）有限责任公司 | Pressure transducer based on friction power generation |
| CN106482889A (en) * | 2015-08-28 | 2017-03-08 | 鸿富锦精密工业（深圳）有限公司 | Pressure transducer |
| CN106610324A (en) * | 2015-11-27 | 2017-05-03 | 北京纳米能源与系统研究所 | Pressure sensor based on triboelectricity |
| CN107014551A (en) * | 2017-06-01 | 2017-08-04 | 东南大学 | The pressure sensor and its method of work of a kind of utilization thermal resistance principle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180427 |
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| RJ01 | Rejection of invention patent application after publication |