Optical grating displacement real-time monitoring and measurement system and its application in Jiulong Coal Mine

A new real-time monitoring and measurement system was established on the basis of the GWG200(C) optical grating displacement sensor. The system combine the safety of production monitoring system used in coal mine, it can eliminate the human factor, improve the veracity and facility of the displacement monitoring and measurement. 15228(S) tunneling roadway of Jiulong Coal Mine was monitored by using this system, and the result can response the fact exactly.