laser speckle field 中文意思是什麼
laser speckle field
解釋
激光散斑場-
Math. and physics department, yanshan university, qinhuangdao 066004 ) [ / align ] [ align = left ] [ b ] abstract [ / b ] : through the pictures taken by means of laser speckle on the metal material weldment, we can obtain double - exposed displacement patterns at a temperature range. by point - to - point analysis heat displacement field at the welding points can be measured, and the distribution of thermal strain and thermal stress can be obtained. as a result, the flaws at welding points can be measured through experiments
本文應用激光散斑法,其測量靈敏度介於全息干涉法和雲紋法之間,象所有其它散斑法一樣,它是一種非接觸式的測量技術,對環境及設備條件要求不高,對被測件表面不需進行特殊處理,可在生產現場對實際物體進行測試。
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