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光纤分布式测温技术是一种新型技术,其原理是利用激光在光纤中传播的特点,对空间温度场进行实时的测量。其作用是分布式的连续检测光纤沿线的温度。本文通过介绍光纤分布式温度传感技术的测温原理,以及光纤的安装方式对温度测量精准度的影响,分析阐述了该技术在高压电缆内部温度测量方面的应用。
Optical fiber distributed temperature measurement technology is a new type of technology, the principle is the use of laser propagation in the optical fiber characteristics of real-time measurement of space temperature field. Its role is distributed continuous detection of fiber along the temperature. In this paper, the temperature measurement principle of fiber distributed temperature sensing technology and the influence of the installation method of optical fiber on the temperature measurement accuracy are introduced. The application of this technology in the internal temperature measurement of high voltage cable is analyzed.