At present, photothermal deflection technology and surface thermal lensing technology are widely applied in weak absorption measurement.
目前，广泛使用的测量弱吸收的方法有光热偏转技术和表面热透镜技术。
It is very suitable for the on-line detection and real-time monitoring in coating industries, particularly for the thickness measurement of weak absorption ultra-thin films.
它非常简单、快捷，特别适用于镀膜行业的在线检测和实时监控，尤其是弱吸收材料超薄膜的厚度测量。
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