CN202928731U - Stress sensor with high sensitivity - Google Patents
Stress sensor with high sensitivity Download PDFInfo
- Publication number
- CN202928731U CN202928731U CN 201220650556 CN201220650556U CN202928731U CN 202928731 U CN202928731 U CN 202928731U CN 201220650556 CN201220650556 CN 201220650556 CN 201220650556 U CN201220650556 U CN 201220650556U CN 202928731 U CN202928731 U CN 202928731U
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- Prior art keywords
- force
- electrode
- sensitive material
- electrodes
- sensitive
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- Expired - Fee Related
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Abstract
A stress sensor with high sensitivity is always the seeking target by people. People can obtain a stress sensor with higher sensitivity by constantly optimizing the structure and material, thereby being applicable to the detection of micro force. The stress sensor of the utility model comprises electrodes, force-sensitive material, a power supply, a galvanometer, and screws, wherein the electrodes are in the shape of a taper; the force-sensitive material is clamped between two electrodes; the electrode is serially connected with the power supply and the galvanometer; and two ends of each electrode are provided with screws for adjusting the distance between the two electrodes. According to the utility model, the electrodes are in the shape of a taper, thereby being capable of enhancing the pressure intensity sensed by the force-sensitive material. The force-sensitive material can be adjusted to the most sensitive working state through the screws, thereby making the sensor be more sensitive to the stress and accordingly be applicable to the detection of the micro force.
Description
(1) technical field
The utility model relates to the strain gauge field, relates in particular to a kind of high-sensitive strain gauge.
(2) background technology
Strain gauge is exactly the sensor of detection power, utilizes the phenomenon that the physical property of material changes and prepare under the effect of power.The measuring method that the kind of strain gauge is a lot of, traditional is to utilize the deformation of flexible member and displacement to represent, development along with microelectric technique, utilize the piezoresistive effect of semiconductor material and good elasticity, develop the semiconductor force-sensing sensor, mainly contain two kinds of silicon piezoresistance type and condenser types, they have the advantages such as volume is little, lightweight, sensitivity is high.Highly sensitive strain gauge is people's pursuit always, by continuing to optimize of structure, material, can constantly obtain more highly sensitive strain gauge, is applied to the detection of little power.
(3) summary of the invention
The utility model provides a kind of high-sensitive strain gauge, adopts traditional material, by the design of structure, makes the sensor counter stress more responsive.Technical solution adopted in the utility model is, a kind of high-sensitive strain gauge comprises electrode, force-sensitive material, power supply, galvanometer, screw rod, and wherein, electrode is taper, and force-sensitive material is clipped between two electrodes, and electrode and power supply, galvanometer are in series; Two electrode two ends are equipped with screw rod, can regulate two distances between electrode; Force-sensitive material is graphite, silicon.
Electrode of the present utility model is taper, and identical power can increase the pressure that force-sensitive material is experienced, and force-sensitive material can be adjusted to the sensitiveest duty by screw rod, makes the sensor counter stress more responsive, is suitable for the detection of little power.
(4) description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1 electrode, 2 force-sensitive materials, 3 power supplys, 4 galvanometer, 5 screw rods.
(5) embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model, electrode 1, force-sensitive material 2, power supply 3, galvanometer 4, screw rod 5, and wherein, electrode 1 is taper, and force-sensitive material 2 is clipped between two electrodes 1, and electrode 1 is in series with power supply 3, galvanometer 4; Two electrode 1 two ends are equipped with screw rod 5, can regulate two distances between electrode 1; Force-sensitive material 2 is graphite, silicon.Electrode 1 of the present utility model is taper, and identical power can increase the pressure that force-sensitive material 2 is experienced, and force-sensitive material 2 can be adjusted to the sensitiveest duty by screw rod 5, makes the sensor counter stress more responsive, is suitable for the detection of little power.
Claims (2)
1. a high-sensitive strain gauge, comprise electrode, force-sensitive material, power supply, galvanometer, screw rod, it is characterized in that:
Described electrode is taper, and force-sensitive material is clipped between two electrodes, and electrode and power supply, galvanometer are in series;
Described electrode two ends are equipped with screw rod.
2. a kind of high-sensitive strain gauge according to claim 1, it is characterized in that: described force-sensitive material is graphite, silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650556 CN202928731U (en) | 2012-11-20 | 2012-11-20 | Stress sensor with high sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650556 CN202928731U (en) | 2012-11-20 | 2012-11-20 | Stress sensor with high sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928731U true CN202928731U (en) | 2013-05-08 |
Family
ID=48218684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650556 Expired - Fee Related CN202928731U (en) | 2012-11-20 | 2012-11-20 | Stress sensor with high sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928731U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768513A (en) * | 2016-11-30 | 2017-05-31 | 北京大学 | A kind of pressure sensor and preparation method thereof |
| CN108488204A (en) * | 2018-05-16 | 2018-09-04 | 黄辰 | Intelligent gasket and the intelligent bolt and wireless supervisory control system for using the intelligent gasket |
| CN111090942A (en) * | 2019-12-18 | 2020-05-01 | 浙江大学 | High-sensitivity piezoresistive uniaxial force sensor design method based on topology optimization |
-
2012
- 2012-11-20 CN CN 201220650556 patent/CN202928731U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768513A (en) * | 2016-11-30 | 2017-05-31 | 北京大学 | A kind of pressure sensor and preparation method thereof |
| CN106768513B (en) * | 2016-11-30 | 2019-11-01 | 北京大学 | A kind of pressure sensor and preparation method thereof |
| CN108488204A (en) * | 2018-05-16 | 2018-09-04 | 黄辰 | Intelligent gasket and the intelligent bolt and wireless supervisory control system for using the intelligent gasket |
| CN111090942A (en) * | 2019-12-18 | 2020-05-01 | 浙江大学 | High-sensitivity piezoresistive uniaxial force sensor design method based on topology optimization |
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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: 20130508 Termination date: 20131120 |