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Split type micro extensometer for measuring tensile deformation of small in-situ tension tester

An in-situ stretching and stretching deformation technology, applied in the direction of electric/magnetic solid deformation measurement, measuring devices, electromagnetic measuring devices, etc., can solve the problem that the extensometer cannot be integrated and obtain the stretching deformation of the material, and achieve a compact structure, The effect of small size and accurate test method

Pending Publication Date: 2018-05-11
JILIN UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a split type miniature extensometer for measuring the tensile deformation of a small in-situ extensometer, which solves the problem that the extensometer in the prior art cannot be integrated with a small in-situ extensometer and obtains the tensile deformation of the material The problem

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  • Split type micro extensometer for measuring tensile deformation of small in-situ tension tester
  • Split type micro extensometer for measuring tensile deformation of small in-situ tension tester
  • Split type micro extensometer for measuring tensile deformation of small in-situ tension tester

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Embodiment Construction

[0014] The detailed content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0015] see Figure 1 to Figure 3 As shown, the split-type miniature extensometer of the present invention for measuring the tensile deformation of a small in-situ extensometer includes a clamping clip 1, a blade 2, a fixing clip 3, a rubber band 4, a capacitive displacement sensor 5, and a measuring plate fixing frame 6. The spiral measuring plate 7 and the rotating shaft 8, the fixed clamp 3 is close to the side of the sample 9 to ensure the installation perpendicularity of the extensometer and the sample 9, the clamp 1 with the blade 2 is installed to clamp the sample 9, and fix The clamp 3 is rotatably connected with the clamping clamp 1 through the rotating shaft 8 . The rubber band 4 binds the thin rod on the fixing clamp 3 and the thin rod on the clamping clamp 1 tightly, and the tension provided by the rub...

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Abstract

The invention relates to a split type micro extensometer for measuring tensile deformation of a small in-situ tension tester and belongs to the technical field of precise sensors and precise instruments. Fixing clips are close to the side surface of a sample, clamping clips are fixedly connected with the fixing clips through rotary shafts, the clamping clips provided with cutting edges clamp the sample and are tightened with the fixing clips through rubber bands, and a capacitive displacement sensor and a measuring plate fixing rack are connected with the fixing clips through screws. The wholeextensometer is very compact in size due to adoption of tiny sensing elements and can be applied to micro tension samples with 8-20 mm long gauge length sections, and the gauge length sections of thesamples cannot be shielded and in-situ imaging of the samples in the experiment process is not affected by the aid of the split type structure. The extensometer has the advantages as follows: the extensometer is compact in structure, small in size, high in precision and particularly applicable to deformation measurement of in-situ tension tests for material micro-mechanical properties under a scanning electron microscope.

Description

technical field [0001] The invention relates to the technical field of precision sensors and precision instruments, in particular to the technical field of material mechanics test equipment, especially to a split-type miniature extensometer for measuring the tensile deformation of a small in-situ extensometer. Background technique [0002] With the improvement of material science research level, material performance testing machine is developing towards miniaturization and microcosmization. A series of in-situ micro-mechanical performance testing instruments for materials came into being. In order to obtain microscopic images of the microscopic deformation and failure behavior of materials, this type of instrument is often integrated with imaging devices such as scanning electron microscopes. Therefore, the instrument adopts a miniaturized design, and its sample size is much smaller than that of traditional mechanical performance test samples. Traditional conventional exten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01B7/16
CPCG01B7/16G01N3/08G01N2203/0075G01N2203/0017Y02E30/30
Inventor 赵宏伟刘长宜马志超任壮乔元森洪坤张萌
Owner JILIN UNIV
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