Liquid-level Measurement with Fiber-optic Low Coherence Interferometer:Micrometer-resolution Approac
- 期刊名字:半导体光子学与技术(英文版)
- 文件大小:
- 论文作者:YANG Yan-fang,SUN Yu-xing,SUN
- 作者单位:Department of Physics
- 更新时间:2022-11-24
- 下载次数:次
论文简介
According to the fact that the surface of liquid with low viscosity coefficient is a good reflection plane for a broadband light beam,liquid-level measurement in micrometer resolution is designed based on a fiber-optic low coherence interferometer in Michelson configuration.The wave front of the reflected light beam is well enough to form an interferogram with a beam reflected from an optic mirror mounted on a stepping scanning-motor.The central peak of the interferogram is read as a measure of the liquid level.Experimental results show that this noncontact method can reach a resolution of ±1.25 μm in the measurement range of 86 mm.
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