CN102435360B - Resistance strain foil with auxiliary coordinates - Google Patents

Resistance strain foil with auxiliary coordinates Download PDF

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Publication number
CN102435360B
CN102435360B CN 201110303393 CN201110303393A CN102435360B CN 102435360 B CN102435360 B CN 102435360B CN 201110303393 CN201110303393 CN 201110303393 CN 201110303393 A CN201110303393 A CN 201110303393A CN 102435360 B CN102435360 B CN 102435360B
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CN
China
Prior art keywords
resistance strain
strain gage
auxiliary
coordinates
coordinate
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Expired - Fee Related
Application number
CN 201110303393
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Chinese (zh)
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CN102435360A (en
Inventor
张杏耀
石钢
朱言悦
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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Priority to CN 201110303393 priority Critical patent/CN102435360B/en
Publication of CN102435360A publication Critical patent/CN102435360A/en
Application granted granted Critical
Publication of CN102435360B publication Critical patent/CN102435360B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a resistance strain foil with auxiliary coordinates. The resistance strain foil comprises a conventional resistance strain foil, horizontal and vertical 45-degree auxiliary coordinates and horizontal and vertical 60-degree auxiliary pasting coordinates, wherein the horizontal and vertical 45-degree auxiliary coordinates and the horizontal and vertical 60-degree auxiliary pasting coordinates are respectively arranged at the two sides of the conventional resistance strain foil and are used as the reference coordinates of the pasting positions of the resistance strain foil for testing stress and strain. The two sides of the resistance strain foil are respectively provided with the auxiliary coordinates, so the technical problems that the resistance strain foil has a smaller volume, pressurization objects are usually larger than the resistance strain foil during the pasting, the pasting position and direction cannot be accurately ensured because the self pasting coordinates of the resistance strain foil are shielded and the like are solved, and the special difficult problem which is brought by the accurate positioning during the pasting process is solved.

Description

Resistance strain gage with auxiliary coordinate
Technical field
The present invention relates to a kind of stress, strain measurement element, especially a kind of resistance strain gage with the auxiliary sticking coordinate.
Background technology
Resistance strain gage is a kind of stress commonly used, strain measurement element, be exactly as sensing element with resistance strain gage, it is sticked on the measuring point of member securely, behind the member stress because measuring point produces strain, foil gauge also makes the resistance of foil gauge change thereupon being out of shape, recorded again the resistance variations size of foil gauge by instrumentation, and be converted to the strain value of measuring point.The measuring principle of resistance strain gage is: resistance value wiry is except with material character is relevant, and is also relevant with length wiry, cross-sectional area.On member, when member stress was out of shape, length wiry and cross-sectional area also changed along with member one with strain gauge adhesion, and then resistance variations occurs.
Owing to is to utilize to be out of shape to measure the logarithmic strain of member with tested member during resistance strain gage work, and certain directivity is arranged, so the stickup direction of foil gauge is very important.Traditional resistance strain gage is it to be pasted coordinate 10 be engraved on the resistance strain gage edge, as shown in Figure 1, because himself area of resistance strain gage is less, therefore the pressurization object often is greater than resistance strain gage when pasting, block the stickup coordinate of foil gauge, therefore make the accurate location in taping process bring great difficulty.
Summary of the invention
The present invention will provide a kind of resistance strain gage with auxiliary coordinate, it can overcome because himself area of resistance strain gage is less, the pressurization thing often is greater than resistance strain gage when pasting, original self the stickup coordinate of resistance strain gage is because block and can't accurately guarantee the technical matterss such as paste position and direction, and this difficult problem of great difficulty is brought in the accurate location that has solved in taping process.
For achieving the above object, technical scheme of the present invention: a kind of resistance strain gage with auxiliary coordinate, comprise resistance strain gage commonly used, be characterized in: resistance strain gage two side direction are respectively equipped with level and vertical and 45 0Auxiliary coordinate and level and vertical and 60 0The auxiliary sticking coordinate as the paste position reference coordinate of resistance strain gage, is used for stress, strain testing.
The invention has the beneficial effects as follows: because the resistance strain gage side direction is with level and vertical and 45 0Auxiliary coordinate and level and vertical and 60 0The auxiliary sticking coordinate.When paster, utilize the good datum line of in advance portrayal on auxiliary-tested member of *-Coordinates calibration, and be fixed.Then smear bonding agent and pressurization and curing in the substrate of resistance strain gage.This function has overcome because himself area of resistance strain gage is less, the pressurization thing often is greater than resistance strain gage when pasting, original self the stickup coordinate of resistance strain gage is because block and can't accurately guarantee the technical matterss such as paste position and direction, and this difficult problem of great difficulty is brought in the accurate location that has solved in taping process.Position that the traditional resistor foil gauge brings and the error on the direction have been got rid of when paster.
Description of drawings
Fig. 1 pastes the existing resistance strain gage floor map that coordinate is engraved on the resistance strain gage edge with it;
Fig. 2 is the floor map of resistance strain gage of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 2, the resistance strain gage with auxiliary coordinate of the present invention is by resistance strain gage 1, level and vertical and 45 0Auxiliary sticking coordinate 2 and level and vertical and 60 0Auxiliary sticking coordinate 3 forms.Resistance strain gage 1 is used for stress, strain testing, level and vertical and 45 0Auxiliary sticking coordinate 2 and level and vertical and 60 0Auxiliary sticking coordinate 3 is as the paste position reference coordinate of resistance strain gage.The auxiliary sticking coordinate when making and original self the coordinate of resistance strain gage be consistent.
Principle of work of the present invention and characteristics:
With the resistance strain gage of auxiliary sticking coordinate, be a kind ofly except original self the stickup coordinate of resistance strain gage 1, to also have in addition two groups of auxiliary sticking coordinates in its side direction, the level that is respectively reaches 45 with vertical 0Coordinate 2 and level and vertical and 60 0Coordinate 3.The auxiliary sticking coordinate when making and original self the coordinate of resistance strain gage be consistent.Its effect is: utilize the good datum line of in advance portrayal on auxiliary-tested member of *-Coordinates calibration when paster, and be fixed.Then smear bonding agent and pressurization and curing in the substrate of resistance strain gage.Fixing method can be used adhesive tape, glue etc.Because auxiliary sticking coordinate and resistance strain gage are an integral body, and be consistent with original self the coordinate of resistance strain gage, therefore position and the direction of resistance strain gage just can very accurately meet testing requirement when stickup.This function has overcome because himself area of resistance strain gage is less, the pressurization thing often is greater than resistance strain gage when pasting, original self the stickup coordinate of resistance strain gage is because block and can't accurately guarantee the problems such as paste position and direction, and this difficult problem of great difficulty is brought in the accurate location that has solved in taping process.Position that the traditional resistor foil gauge brings and the error on the direction have been got rid of when paster.And position and the error on the direction brought during paster can be brought larger impact to measuring accuracy.Especially under the state of two-dimentional strain, it is because position and the error effect on the direction during paster are larger.No matter this method is on monolithic or right angle sheet or all kinds of strain rosettes if can being applied on the various resistance strain gages.

Claims (1)

1. the resistance strain gage with auxiliary coordinate comprises resistance strain gage commonly used (1), it is characterized in that: described resistance strain gage (1) two side direction is respectively equipped with level and vertical and 45 0Auxiliary coordinate (2) and level and vertical and 60 0Auxiliary sticking coordinate (3) as the paste position reference coordinate of resistance strain gage (1), is used for stress, strain testing.
CN 201110303393 2011-10-10 2011-10-10 Resistance strain foil with auxiliary coordinates Expired - Fee Related CN102435360B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110303393 CN102435360B (en) 2011-10-10 2011-10-10 Resistance strain foil with auxiliary coordinates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110303393 CN102435360B (en) 2011-10-10 2011-10-10 Resistance strain foil with auxiliary coordinates

Publications (2)

Publication Number Publication Date
CN102435360A CN102435360A (en) 2012-05-02
CN102435360B true CN102435360B (en) 2013-05-01

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CN 201110303393 Expired - Fee Related CN102435360B (en) 2011-10-10 2011-10-10 Resistance strain foil with auxiliary coordinates

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241371B (en) * 2015-10-28 2018-03-13 上海应用技术学院 Resistance strain gage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2734174B2 (en) * 1990-06-07 1998-03-30 株式会社明電舎 How to fix electric resistance strain gauge
CN100496964C (en) * 2004-03-05 2009-06-10 徐跃 Sandwich plate with preburied bearing member
CN101210850A (en) * 2006-12-29 2008-07-02 中国直升机设计研究所 Multi-component force sensor
CN201367137Y (en) * 2009-01-05 2009-12-23 田二辉 Carton sealing device

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Granted publication date: 20130501

Termination date: 20131010