Application of Distributed Fiber Temperature Measurement Technology in Coal Mine

The principle of distributed fiber temperature measurement was introduced，application and implementation of distributed fiber temperature measurement system in coal belt conveyor, power transmission cables, electrical equipments and fire prevention for goaf were mainly analyzed. The industrial test showed that the system can monitor temperature accurately and warn opportunely, and the measurement error is ±1 ℃, the positioning accuracy is 1 m, the response time is 20 s.