CN203657736U - High temperature resistance strain gauge - Google Patents
High temperature resistance strain gauge Download PDFInfo
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- CN203657736U CN203657736U CN201320784285.3U CN201320784285U CN203657736U CN 203657736 U CN203657736 U CN 203657736U CN 201320784285 U CN201320784285 U CN 201320784285U CN 203657736 U CN203657736 U CN 203657736U
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- substrate
- sensitive grid
- strain gauge
- high temperature
- grid
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Abstract
The utility model provides a high temperature resistance strain gauge. The strain gauge is formed by a sensitive grid, a substrate, lead wires and a cover sheet. The sensitive grid is a resistor element and a diameter is 0.01-0.05 mm. A Kumar alloy filament with a high resistance coefficient is bended so as to form a grid shape. Two ends of the sensitive grid are provided with the lead wires. The sensitive grid is fixed on the substrate. The cover sheet buckles the substrate so as to form a closed overall structure. The substrate is made of a glass fiber cloth and can resist the high temperature of 400-450 DEG C. The strain gauge of the utility model has the advantages that the sensitive grid, the substrate, the lead wires and the cover sheet form the closed overall structure; the strain gauge can work for a long time under 350 DEG C and the strain gauge can work normally in a high temperature test.
Description
Technical field
The utility model provides a kind of high temperature resistant foil gauge, is mainly applicable to the occasion that the sensors such as under high temperature (350 DEG C) environment dynamometry use, and belongs to mechanical material detection technique field.
Technical background
Along with scientific and technical development, electronic technology has also obtained develop rapidly, and to the 1950's, electronic technology is widely applied in foil gauge field.Current normal temperature foil gauge heatproof moisture-proof is poor, and general work temperature adopts at 70 DEG C.Normal temperature foil gauge can not meet the requirement of hot test to foil gauge.
Summary of the invention
The utility model provides a kind of high temperature resistant foil gauge, it is characterized in that:
Formed by sensitive grid, substrate, lead-in wire, cover plate, sensitive grid is a resistive element, the Karma metal filament bend that is 0.01-0.05mm, high resistivity by diameter forms palisade, the two ends of sensitive grid are provided with lead-in wire, sensitive grid is fixed in substrate, and cover plate is buckled in the one-piece construction that forms sealing in substrate.
Described substrate is made up of glass fabric, ability 400-450 DEG C of high temperature.
Good effect of the present utility model is: sensitive grid, substrate, lead-in wire, cover plate form the one-piece construction of sealing, can at 350 DEG C, work long hours, and meet the normal work of hot test to foil gauge.
Brief description of the drawings
Fig. 1 is the utility model structure principle chart;
In figure, 1, cover plate; 2, sensitive grid; 3, substrate; 4, lead-in wire.
embodiment:
Shown in Fig. 1, form the utility model by sensitive grid 2, substrate 3, lead-in wire 4, cover plate 1 etc., between cover plate 1 and substrate 3, it is sensitive grid 2, sensitive grid 2 is resistive elements, the Karma metal filament bend that is 0.01-0.05mm, high resistivity by diameter forms palisade, and withstand temperature is 450 DEG C.Sensitive grid is fixed in substrate 3 with high-temperature-resistant adhesive; The two ends of sensitive grid 2 are provided with lead-in wire 4, and sensitive grid 2 is fixed in substrate 3, and cover plate 1 is buckled in the one-piece construction that forms sealing in substrate 3.Substrate 3 is made up of glass fabric, ability 400-450 DEG C of high temperature.The effect of substrate 3 should ensure that strain on member is delivered to sensitive grid 2 exactly gets on.Lead-in wire 4 is connected sensitive grid 2 with metering circuit, be made up of exotic material, welds mutually with 2 liang of output terminals of sensitive grid.
Claims (1)
1. a high temperature resistant foil gauge, is characterized in that:
Formed by sensitive grid, substrate, lead-in wire, cover plate, sensitive grid is a resistive element, the Karma metal filament bend that is 0.01-0.05mm, high resistivity by diameter forms palisade, the two ends of sensitive grid are provided with lead-in wire, sensitive grid is fixed in substrate, and cover plate is buckled in the one-piece construction that forms sealing in substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784285.3U CN203657736U (en) | 2013-12-04 | 2013-12-04 | High temperature resistance strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784285.3U CN203657736U (en) | 2013-12-04 | 2013-12-04 | High temperature resistance strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657736U true CN203657736U (en) | 2014-06-18 |
Family
ID=50924114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784285.3U Expired - Fee Related CN203657736U (en) | 2013-12-04 | 2013-12-04 | High temperature resistance strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657736U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374313A (en) * | 2014-11-26 | 2015-02-25 | 安徽省交通规划设计研究总院股份有限公司 | Resistance strain gauge under harsh environment |
| CN106289598A (en) * | 2016-10-31 | 2017-01-04 | 中航电测仪器股份有限公司 | A kind of strain ga(u)ge for concrete stress test |
| CN108036711A (en) * | 2018-01-19 | 2018-05-15 | 沈阳仪表科学研究院有限公司 | Foam geometry caliper is used in a kind of pipeline |
| CN109141697A (en) * | 2017-06-15 | 2019-01-04 | 上海微创电生理医疗科技股份有限公司 | Foil gauge, pressure sensor and intervention catheter |
-
2013
- 2013-12-04 CN CN201320784285.3U patent/CN203657736U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374313A (en) * | 2014-11-26 | 2015-02-25 | 安徽省交通规划设计研究总院股份有限公司 | Resistance strain gauge under harsh environment |
| CN106289598A (en) * | 2016-10-31 | 2017-01-04 | 中航电测仪器股份有限公司 | A kind of strain ga(u)ge for concrete stress test |
| CN109141697A (en) * | 2017-06-15 | 2019-01-04 | 上海微创电生理医疗科技股份有限公司 | Foil gauge, pressure sensor and intervention catheter |
| CN109141697B (en) * | 2017-06-15 | 2020-04-10 | 上海微创电生理医疗科技股份有限公司 | Strain gauge, pressure sensor and interventional medical catheter |
| US11596493B2 (en) | 2017-06-15 | 2023-03-07 | Shanghai Microport Ep Medtech Co., Ltd. | Strain gauge, pressure sensor, and interventional medical catheter |
| CN108036711A (en) * | 2018-01-19 | 2018-05-15 | 沈阳仪表科学研究院有限公司 | Foam geometry caliper is used in a kind of pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |