光纤法珀传感解调方法研究进展

光纤法珀传感器是目前发展历史最长、应用最普遍、技术最成熟的一种光纤传感器,广泛应用于各类极端复杂的环境中,对其传感信息进行准确解调是实现高精度测量的关键.首先对光纤法珀传感技术的发展历程进行了回顾和评述,接着介绍了光纤法珀传感器的类型和基本传感原理,对光纤法珀传感器解调方法的研究进展进行了阐述,从强度解调和相位解调两方...

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

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.