CN103727871A - Resistance strain gauge - Google Patents
Resistance strain gauge Download PDFInfo
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- CN103727871A CN103727871A CN201310708296.8A CN201310708296A CN103727871A CN 103727871 A CN103727871 A CN 103727871A CN 201310708296 A CN201310708296 A CN 201310708296A CN 103727871 A CN103727871 A CN 103727871A
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- sensitive grid
- resistance strain
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- strain gage
- strain gauge
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Abstract
The invention discloses a resistance strain gauge which comprises a substrate. A sensitive grid is stuck to an upper panel of the substrate through a binder. The left end and the right end of the sensitive grid are connected with leads respectively, and the section of the sensitive grid is arranged to be rectangular. A surface covering is arranged on the sensitive grid which is made of semiconductor materials. The sensitive grid is a foil type piece. The resistance strain gauge is small in sensitivity coefficient dispersibility and high in measurement accuracy.
Description
Technical field
The present invention relates to a kind of resistance strain gage.
Background technology
Resistance strain gage also claims strain ga(u)ge, is called for short foil gauge or strainometer, is by sensitive grid etc., to be configured for the element of monitor strain.It can be converted to resistance variations by the variation of strain on mechanical component.Existing resistance strain gage is by the constantan wire of Φ=0.02-0.05mm or nickel filament, to be coiled into palisade (or corroding into palisade by very thin metal forming) to be clipped in (substrate) in two-layer heat insulating lamella and to make.With silver-coated copper wire, be connected with foil gauge wire grid, as resistor disc, go between.Resistance strain gage, as sensing element, sticks on it on measuring point of member securely, and after member stress, due to measuring point generation strain, foil gauge also makes the resistance of foil gauge change thereupon being out of shape.But existing resistance strain gage has the following disadvantages: (1) sensitivity coefficient is dispersed large; (2) grid silk weekly form area is little, thereby poor radiation, causes the poor accuracy of measuring.
Summary of the invention
The technical problem to be solved in the present invention is the defect that overcomes prior art, and the resistance strain gage that a kind of sensitivity coefficient dispersiveness is little, accuracy of measurement is high is provided.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of resistance strain gage of the present invention, comprise substrate, the top panel of described substrate is pasted with sensitive grid by cementing agent, and the two ends, left and right of described sensitive grid are connected with respectively lead-in wire, the cross section of described sensitive grid is set to rectangle, on described sensitive grid, is provided with surface covering.
Further, described sensitive grid is made by semiconductor material.
Further, described sensitive grid is paper tinsel formula sheet.
The beneficial effect that the present invention reaches is:
(1) sensitive grid cross section is rectangle, therefore grid silk weekly form area is large, thereby thermal diffusivity is good.Like this, under same cross-sectional is long-pending, allow large compared with filament winding formula sheet of the electric current that passes through, make to measure have output compared with large-signal may; In addition, surface area ambassador adhesion increases, and is conducive to distortion and transmits, thereby increased the accuracy of measuring;
(2) design of paper tinsel formula sheet can guarantee that size is accurate, lines are even, therefore sensitivity coefficient dispersiveness is little.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of resistance strain gage of the present invention, comprise substrate 2, the top panel of described substrate 2 is pasted with sensitive grid 1 by cementing agent 4, the two ends, left and right of described sensitive grid 1 are connected with respectively lead-in wire 3, the cross section of described sensitive grid 1 is set to rectangle, on described sensitive grid 1, is provided with surface covering 5.
Further, described sensitive grid 1 is made by semiconductor material.
Further, described sensitive grid 1 is paper tinsel formula sheet.
Resistance strain gage of the present invention, sensitive grid cross section is rectangle, therefore grid silk weekly form area is large, thereby thermal diffusivity is good.Like this, under same cross-sectional is long-pending, allow large compared with filament winding formula sheet of the electric current that passes through, make to measure have output compared with large-signal may; In addition, surface area ambassador adhesion increases, and is conducive to distortion and transmits, thereby increased the accuracy of measuring; Its paper tinsel formula sheet design can guarantee that size is accurate, lines are even, therefore sensitivity coefficient dispersiveness is little.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a resistance strain gage, comprises substrate, it is characterized in that, the top panel of described substrate is pasted with sensitive grid by cementing agent, the two ends, left and right of described sensitive grid are connected with respectively lead-in wire, and the cross section of described sensitive grid is set to rectangle, on described sensitive grid, are provided with surface covering.
2. a kind of resistance strain gage according to claim 1, is characterized in that, described sensitive grid is made by semiconductor material.
3. a kind of resistance strain gage according to claim 1, is characterized in that, described sensitive grid is paper tinsel formula sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708296.8A CN103727871A (en) | 2013-12-20 | 2013-12-20 | Resistance strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708296.8A CN103727871A (en) | 2013-12-20 | 2013-12-20 | Resistance strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727871A true CN103727871A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310708296.8A Pending CN103727871A (en) | 2013-12-20 | 2013-12-20 | Resistance strain gauge |
Country Status (1)
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| CN (1) | CN103727871A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983182A (en) * | 2014-05-27 | 2014-08-13 | 相斌辉 | Portable type strain gauge adhering technology |
| 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 |
| CN105043237A (en) * | 2015-05-27 | 2015-11-11 | 湖南省楚嘉科技发展有限公司 | Health monitoring system for glass curtain wall, and installation method for health monitoring system |
| CN105091731A (en) * | 2015-08-13 | 2015-11-25 | 浙江工业大学 | Axial deviation double-sensitive grid interdigital metal strain plate capable of measuring axial deviation of surface strain |
| CN105371749A (en) * | 2015-12-04 | 2016-03-02 | 浙江工业大学 | Axially-distributed six-sensitive-grid full-bridge three-interdigital metal foil gauge capable of measurement of single-side dual-bias sensitive grid outside axial partial derivatives |
| CN105423894A (en) * | 2016-01-14 | 2016-03-23 | 浙江工业大学 | Axially-distributed five sensitive grid side-interdigital metal strain gauge capable of measuring two-side offset sensitive grid center axial partial derivative |
| 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 |
| CN106643463A (en) * | 2016-12-19 | 2017-05-10 | 华中科技大学 | Flexible full-bridge resistance strain sheet |
| CN106840706A (en) * | 2017-03-21 | 2017-06-13 | 衢州市特种设备检验中心 | One kind is based on strain chip sideslip detection method and device |
| CN109059747A (en) * | 2018-07-04 | 2018-12-21 | 北京科技大学 | A kind of temporary frame work wire grid formula high temperature strain gauge and its manufacture and use method |
| WO2019148752A1 (en) * | 2018-01-30 | 2019-08-08 | 山东大学 | Foundation settlement testing system and method adopting resistance-sensitive geogrids |
Citations (5)
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| JPH03191802A (en) * | 1989-12-21 | 1991-08-21 | Sumitomo Electric Ind Ltd | Strain sensitive element |
| US5631622A (en) * | 1994-02-15 | 1997-05-20 | Hottinger Baldwin Messtechnik Gmbh | Strain gage and measuring transducer and method of producing the same |
| CN1692275A (en) * | 2003-02-19 | 2005-11-02 | 韦谢伊测量集团公司 | Strain gage |
| WO2007143123A2 (en) * | 2006-06-02 | 2007-12-13 | The Board Of Trustees Of The University Of Illinois | Micromachined artificial haircell |
| CN102095362A (en) * | 2010-11-20 | 2011-06-15 | 武汉理工大学 | Grid-type carbon fiber strain transducer |
-
2013
- 2013-12-20 CN CN201310708296.8A patent/CN103727871A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03191802A (en) * | 1989-12-21 | 1991-08-21 | Sumitomo Electric Ind Ltd | Strain sensitive element |
| US5631622A (en) * | 1994-02-15 | 1997-05-20 | Hottinger Baldwin Messtechnik Gmbh | Strain gage and measuring transducer and method of producing the same |
| CN1692275A (en) * | 2003-02-19 | 2005-11-02 | 韦谢伊测量集团公司 | Strain gage |
| WO2007143123A2 (en) * | 2006-06-02 | 2007-12-13 | The Board Of Trustees Of The University Of Illinois | Micromachined artificial haircell |
| CN102095362A (en) * | 2010-11-20 | 2011-06-15 | 武汉理工大学 | Grid-type carbon fiber strain transducer |
Non-Patent Citations (1)
| Title |
|---|
| 童敏明 等: "《传感器原理与应用技术》", 31 January 2012, 清华大学出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983182A (en) * | 2014-05-27 | 2014-08-13 | 相斌辉 | Portable type strain gauge adhering technology |
| 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 |
| CN105043237A (en) * | 2015-05-27 | 2015-11-11 | 湖南省楚嘉科技发展有限公司 | Health monitoring system for glass curtain wall, and installation method for health monitoring system |
| CN105091731B (en) * | 2015-08-13 | 2017-07-25 | 浙江工业大学 | The axial deviation sensitive grid interdigitated metal foil gauge of the axial local derviation of measurable surface strain |
| CN105091731A (en) * | 2015-08-13 | 2015-11-25 | 浙江工业大学 | Axial deviation double-sensitive grid interdigital metal strain plate capable of measuring axial deviation of surface strain |
| CN105371749A (en) * | 2015-12-04 | 2016-03-02 | 浙江工业大学 | Axially-distributed six-sensitive-grid full-bridge three-interdigital metal foil gauge capable of measurement of single-side dual-bias sensitive grid outside axial partial derivatives |
| CN105371749B (en) * | 2015-12-04 | 2018-07-06 | 浙江工业大学 | It can measure axial distribution six sensitive grid full-bridges, the three interdigital metal strain plate of axial local derviation on the outside of the double offset sensitive grid of unilateral side |
| CN105423894A (en) * | 2016-01-14 | 2016-03-23 | 浙江工业大学 | Axially-distributed five sensitive grid side-interdigital metal strain gauge capable of measuring two-side offset sensitive grid center axial partial derivative |
| CN105423894B (en) * | 2016-01-14 | 2018-04-20 | 浙江工业大学 | The five interdigital metal strain plates in sensitive grid side of axial distribution of the measurable bilateral biasing central axial local derviation of sensitive grid |
| 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 |
| CN106643463A (en) * | 2016-12-19 | 2017-05-10 | 华中科技大学 | Flexible full-bridge resistance strain sheet |
| CN106643463B (en) * | 2016-12-19 | 2019-05-14 | 华中科技大学 | A kind of flexibility full-bridge type resistance strain gage |
| CN106840706A (en) * | 2017-03-21 | 2017-06-13 | 衢州市特种设备检验中心 | One kind is based on strain chip sideslip detection method and device |
| WO2019148752A1 (en) * | 2018-01-30 | 2019-08-08 | 山东大学 | Foundation settlement testing system and method adopting resistance-sensitive geogrids |
| CN109059747A (en) * | 2018-07-04 | 2018-12-21 | 北京科技大学 | A kind of temporary frame work wire grid formula high temperature strain gauge and its manufacture and use method |
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Application publication date: 20140416 |