A principle and experimental method of detectingmaterial defects by photothermal technique is researched in this paper.
对光热技术测量材料缺陷的原理及实验方法进行了研究。
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As the detectingmaterial of uncooled infrared detectors, vanadium oxide (VOX) thin films need high temperature coefficient of resistance (TCR) and suitable film resistance for using of the device.
In order to realize the ice auto-detecting in the complex situation, this paper presented a vibrating-tube ice detector based on the magnetostriction and its inverse effect of the material.