Integrated strain calibration system
A calibration system and integrated technology, applied in the field of test and measurement, can solve problems such as errors and inaccurate measurement results, and achieve high-precision measurement and high measurement accuracy.
Active Publication Date: 2020-06-16
NAT INST OF METROLOGY CHINA
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Problems solved by technology
In addition, the sample is stretched in the middle of the beam of the tensile testing machine, while the reading is on the column on one side. The distance between the column and the sample is far, so that the data output by the sample and the data read on the column are different The deformation of the beam produces a certain relationship error, which makes the measurement result inaccurate
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] The present invention provides an integrated strain gauge calibration system, including a nut 1, a connecting block 2, an upper plate 3, an upper seat 4, a lower seat 6, a lower plate 7, and a laser 15. The ...
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The invention discloses an integrated strain gauge calibration system, which comprises a nut, a connecting block, an upper plate, an upper base, a lower base, a lower plate and a laser device, whereinthe upper plate is detachably connected with the upper base; the upper plate is detachably connected with a pyramid prism; the lower end of the upper base is detachably connected with a clamping block; the top end of the lower plate is detachably connected with a lower base; the lower plate is detachably connected with two groups of adjusting mirrors and reflecting mirrors which are correspondingly arranged up and down; the lower base is detachably connected with clamping blocks; a strain gauge is inserted and connected between the two clamping blocks; a polarizing beam splitter is arranged on an output light path of the laser device; a rear reference mirror is arranged in the reflected light direction of the polarizing beam splitter; a front reference mirror is symmetrically arranged inthe reverse direction of the reflected light of the polarizing beam splitter relative to the polarizing beam splitter; a 1 / 4 wave plate is arranged in the transmitted light direction of the polarizingbeam splitter; the reflector is arranged on the right of the 1 / 4 wave plate; and the adjusting mirror and the pyramid prism are correspondingly arranged up and down. The integrated strain gauge calibration system provided by the invention is convenient in clamping and disassembly, can realize stretching and compression experiments, and is high in measurement precision.
Description
technical field [0001] The invention relates to the technical field of test and measurement, in particular to an integrated strain gauge calibration system. Background technique [0002] Laser interferometry technology is a technology based on the principle of light wave interference. Because laser has the characteristics of high brightness, good directionality, monochromaticity and good coherence, laser interferometry system is widely used. The laser interferometer based on laser interferometry technology has the advantages of fast response speed, large measurement range and high measurement accuracy, and can be widely used in online measurement, error correction and control of precision machine tools, large-scale integrated circuit processing equipment, strain gauges, etc. . [0003] Tensile testing machine is a mechanically applied testing machine used for tensile, compression, bending, shearing, peeling and other mechanical performance tests on metallic materials and no...
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IPC IPC(8): G01B21/32
CPCG01B21/042G01B21/32
Inventor 崔建军侯俊凯魏晋和束红林陈恺张鹏
Owner NAT INST OF METROLOGY CHINA