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日本藤仓电线公司完成了将光纤作为传感器,测量读出纤维纵向温度变化的分布型温度传感器的基础研究,现正在进行实用性开发.这种温度传感器的原理,就是用光脉冲反射法(OTDR)检出加热具有金属涂层的耐热光纤时产生的特性变化.OTDR法就是根据入射光脉冲在光纤上各
Fujikura Co., Ltd. of Japan has completed the basic research of using optical fiber as a sensor to measure the distributed temperature sensor that reads out the longitudinal temperature change of the fiber, and is developing the practical application.The principle of this temperature sensor is to use the optical pulse reflection method (OTDR ) Detects changes in characteristics when heating a heat-resistant fiber with a metal coating. The OTDR method is based on the incident light pulses on the fiber