CN2102496U - Self clamp strain gauge - Google Patents
Self clamp strain gauge Download PDFInfo
- Publication number
- CN2102496U CN2102496U CN 91220430 CN91220430U CN2102496U CN 2102496 U CN2102496 U CN 2102496U CN 91220430 CN91220430 CN 91220430 CN 91220430 U CN91220430 U CN 91220430U CN 2102496 U CN2102496 U CN 2102496U
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- China
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- utility
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- test sample
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a self clamp tensiometer which is a resistive strain-type transducer. The utility model is mainly used for measuring the axial linear deformation of a test sample in the tensile test of material. The utility model is mainly provided with two symmetrical n-shaped tensiometers, and the tensiometers can be automatically clamped on the test sample. The utility model not only can measure and obtain the average of the strain of both sides of the uniaxial tensile test sample and eliminate the eccentric influence of axial force but also can overcome the disadvantage of the tensiometer produced by Japan, America, Germany, etc. The utility model can provide convenience for engineering and technical personnel to correctly evaluate the mechanical property of the material.
Description
The utility model essence is resistance strain type sensor, is mainly used in and measures the sample line distortion in the material tensile test.
At present, a large amount of both at home and abroad resistance-strain type extensometers that use adopt single mostly
Type knot lattice, as MTS, Instron, company's products such as Shimadzu, its pattern is flexible member two ends two blades with its orthogonal that are being fixedly connected, and by clip or bungee two blades and sample is fixed.Its advantage is that flexible member is in the pure bending state, be convenient to the axial line distortion that strain ga(u)ge sensing mounted thereto goes out tested sample, and its shortcoming is to use clip (as Shimadzu company product) or bungee (as MTS, Instron company product) that blade and sample are fixed, and service efficiency is low.In addition, one-sided formula
The type extensometer can't be eliminated the lateral bending influence of uniaxial tension, causes the automatic difficulty of handling of tension test data and overproof.This is the technical barrier that needs to be resolved hurrily at present the most basic, the most important and most widely used material mechanical performance test.
The purpose of this utility model is to solve existing one-sided formula
The measuring error that the type extensometer applies existing shortcoming on the mode and produces therefrom, thus testing efficiency and accuracy improved.
The utility model adopts symmetrical structure, is designed to two
Type places the sample both sides, by spring---and guide rod connects.Each
In the hinged respectively bearing on guide rod of type member.
From folder formula extensometer adopt two
The type structure is with general
The blade of type structure extensometer applies mode to the holding force of sample by original dependence clip or bungee, changes spring into---and it is two that guide rod connects
Type is clamped in two pairs of blades of symmetry on the sample automatically, not only can measure the mean value of uniaxial tension sample two side strains, eliminate axle power Influence from Eccentric, and overcome original shortcoming that applies mode, for engineering technical personnel measure material mechanical performance exactly, provide convenience.
Accompanying drawing 1 is " pressing from both sides the formula extensometer certainly " structural representation.
Embodiment of the present utility model is as follows: be provided with the two pairs of symmetries
The type member.Each
The type member is made up of the flexible member that two blades that are parallel to each other reach and blade is perpendicular, at the place of intersecting vertically of blade and flexible member both is fixed together.But be provided with bearing pin (1) on the intersection point of blade center line and flexible member center line, its axle center overlaps with intersection point.Like this, each
The type member is provided with two bearing pins (1), in the hinged bearing (2) on guide rod.Bearing (2) is by guide rod---and spring (3) connects.Work as tested sample like this and place two pairs
In the time of on the blade of type member, guide rod---spring (3) is held bearing (2) and is clamped on the sample automatically.When sample was stretched or compressed, blade can rotate around bearing pin (1), made flexible member be subjected to the moment of flexure effect and produced strain, was gone out the axial line distortion of tested sample by strain ga(u)ge sensing mounted thereto.
Claims (2)
1, presss from both sides the formula extensometer certainly, comprise the ㄇ type member of forming by blade and flexible member, it is characterized in that the ㄇ type member of two pairs of symmetries hingedly on bearing (2), connect by guide rod-spring (3) by bearing pin (1).
2, according to claim 1 from pressing from both sides the formula extensometer, it is characterized in that
On flexible member center line and the blade center line intersection point bearing pin (1) is set in the type member, the axle center of bearing pin (1) overlaps with intersection point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91220430 CN2102496U (en) | 1991-10-04 | 1991-10-04 | Self clamp strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91220430 CN2102496U (en) | 1991-10-04 | 1991-10-04 | Self clamp strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2102496U true CN2102496U (en) | 1992-04-22 |
Family
ID=4927517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91220430 Withdrawn CN2102496U (en) | 1991-10-04 | 1991-10-04 | Self clamp strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2102496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476858B (en) * | 2009-01-21 | 2010-12-08 | 华东理工大学 | Drawing type high temperature component deformation sensing device |
| CN105352799A (en) * | 2015-11-09 | 2016-02-24 | 浙江大学 | Double-tuning-fork-shaped elastomer extensometer and measuring method |
-
1991
- 1991-10-04 CN CN 91220430 patent/CN2102496U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476858B (en) * | 2009-01-21 | 2010-12-08 | 华东理工大学 | Drawing type high temperature component deformation sensing device |
| CN105352799A (en) * | 2015-11-09 | 2016-02-24 | 浙江大学 | Double-tuning-fork-shaped elastomer extensometer and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |