光纤法珀传感解调方法研究进展

doi:10.3969/j.issn.0255-8297.2021.05.006

Abstract

Abstract: Optical fiber Fabry-Perot sensor is a type of optical fiber sensors with the longest development history, the widest range of applications, and the most mature technology, and it has been widely used in many extremely complex environments. In Fabry-Perot sensors, accurate demodulation of sensing information of is the key to gain high-precision measurement. In this paper, first of all, the development history of optical fiber FabryPerot sensors is reviewed and commented. Then, the types and basic sensing principles of optical fiber Fabry-Perot sensors are introduced and the research progress of demodulation methods for optical fiber Fabry-Perot sensors is described. Also, intensity demodulation method, spectrum demodulation method and low-coherence interferometric demodulation method are introduced from two aspects of intensity demodulation and phase demodulation respectively. At last, the application characteristics of these demodulation methods are summarized, which could provide a reference for the future research and application of high-precision and fast demodulation of optical fiber Fabry-Perot sensors.

Key words: optical fiber sensing, interferometric fiber optic sensor, fiber optic Fabry-Perot sensor, demodulation method

CLC Number:

P751.1

DUAN Yanan, WANG Shuang, JIANG Junfeng, TAN Ke, LIU Tiegen. Research Progress on Demodulation Methods of Optical Fiber Fabry-Perot Sensor[J]. Journal of Applied Sciences, 2021, 39(5): 793-808.

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Research Progress on Demodulation Methods of Optical Fiber Fabry-Perot Sensor

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