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本文论述了分布式光纤温度传感与报警系统的原理，包括光时域反射（ＯｐｔｉｃａｌＴｉｍｅ－ｄｏｍａｉｎＲｅｆｌｅｃｔｉｏｎ—简称ＯＴＤＲ）技术和拉曼散射测温原理，以及分布式光纤温度传感与报警系统的应用。
This paper discusses the principle of distributed optical fiber temperature sensing and alarm system, including optical time-domain reflection (OTDR) and Raman scattering temperature measurement principle, as well as the application of distributed optical fiber temperature sensing and alarm system.