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    Linear frequency modulation multi-beam laser heterodyne measurement for the glass thickness

    This paper uses the combination of laser heterodyne technology with linear frequency modulation technology to load thickness of plate glass to the heterodyne signal frequency. By researching on the theoretica...

    Li Yan-Chao, Wang Yi-Qiao, Liu Chun-Yu, Yang Jiu-Ru, Ding Qun in Applied Physics B (2016)