Experimental apparatus and method for measuring poisson ratio of material under high temperature
An experimental device, Poisson's ratio technology, applied in the direction of measuring devices, analyzing materials, using stable tension/pressure to test the strength of materials, etc., can solve the problems of high price, rising measurement temperature, cumbersome procedures, etc., and achieve simplified operation , High measurement temperature, labor-saving effect
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[0023] The specific structure, working principle and working process of the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention should not be limited by this.
[0024] figure 1 It is a schematic diagram of an experimental device for measuring the Poisson's ratio of a material at a high temperature according to the present invention. The device comprises a CCD1, a first half-mirror 4, an imaging lens 5, a first beam expander 6, a mirror 7, a second half-mirror 8, an Ar ion laser 9, and a second beam expander. mirror 10 and high-temperature box 11; a light-transmitting glass window 12 is opened on the wall of the high-temperature box 11, and a four-point bending loading device and a sample 13 are placed inside the high-temperature box 11, and the first half-transparent half-mirror A blue light filter 3 and a wave chopper 2 are sequentially placed between 4 and the CCD1. The blue ligh...
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