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Research on Liquid Level Measurement Based on Optical Fiber Sensor
Author(s): CHEN Qimeng, MA Chenzuo, LI Henan, GUI Yang, XU Xiping
Pages: 547-
549
Year: 2009
Issue:
4
Journal: Journal of Changchun University of Science and Technology
Keyword: 液位高度; 实时测量; 光纤传感; 光纤放大器;
Abstract: 采用光纤传感与计算机技术相结合,研究一种实时液位测量系统.测量原理为光源发出的光由发送光纤传榆到被测液体的表面,反射回来的光由接收光纤接收,其光强量与光纤端面距液面高度有关,接收光纤传输的光信号进入光纤放大器,实现对信号的放大.再由光电转换器件将放大后的信号转变为电信号,进行信号采集和数据处理.采用光纤传感测量液面高度变化同传统液位测量相比.精度从几毫米提高到了几微米.
Citations
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