LOW-COST DIGITAL POLARISCOPE FOR DYNAMIC PHOTOELASTICITY

被引:16
作者
ASUNDI, AK
SAJAN, MR
机构
[1] Univ. of Hong Kong, Hong Kong
关键词
DYNAMIC PHOTOELASTICITY; HIGH-SPEED PHOTOGRAPHY; PULSED LED; TIME-DELAY AND INTEGRATION IMAGING; DYNAMIC VISUALIZATION;
D O I
10.1117/12.177512
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A low-cost dynamic polariscope is presented. The experimental arrangement is based on the delayed-microflash technique. A LED is used as the flash source. Dynamic photoelastic patterns are recorded after different time delays from the loading point using a CCD camera operating in the time-delay and integration mode. Unlike the conventional photographic techniques, the experiments need not be performed in total darkness. Digital recording provides instantaneous visualization of the patterns and rapid repeatability.
引用
收藏
页码:3052 / 3055
页数:4
相关论文
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