Due to the shortcomings of traditional radiation-based film thickness detectors such as low detection accuracy, easy offset, and difficulty in calibration, which have a great impact on the actual quality control of process products, the SIMV coating (film thickness) online thickness gauge uses nano-optics The interference method can measure 20 layers of coatings and films at the same time with an accuracy as high as 1nm. It perfectly solves the problem of traditional ray-based online thickness gauges that have radiation, long offset periods, low detection accuracy, and inability to detect coatings. Disadvantages of thickness. Thermo Fisher's coating thickness online thickness gauge has high detection accuracy and can be automatically calibrated online in real time, effectively ensuring the detection accuracy of the online thickness gauge.

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