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描述了散斑干涉高温物体应变测试实验装置工作原理及其实验结果。对钨和石墨的测量表明：该装置可实现高温状态下材料应变测试，测试精度达１μｍ。选择波长６３２．８ｎｍ、半宽２．４ｎｍ的窄带滤光片，配之预处理电路，对６３２．８ｎｍ辐射散射能力较强的材料（诸如钨带等）可实现２３００℃高温非接触应变测量；对６３２．８ｎｍ辐射散射能力较差的材料（诸如石墨等）可实现１５００℃高温非接触应变测量。
Describes the working principle and experimental results of the strain test device for speckle interference high temperature objects. The measurement of tungsten and graphite shows that the device can achieve the material strain test under the condition of high temperature and the testing precision reaches 1μm. Select a narrowband filter with a wavelength of 632.8nm and a half width of 2.4nm with a pretreatment circuit to achieve high temperature non-contact strain measurement of 2300 ℃ for 632.8nm material with strong radiation scattering ability (such as tungsten ribbon) Materials that are less capable of scattering 632.8 nm radiation (such as graphite, etc.) can achieve a high temperature non-contact strain measurement of 1500 ° C.