Abstract: In view of problems of low safety and electromagnetic interference in existing mine microseism monitoring system based on electric sensor, a design scheme of mine microseism monitoring system based on optical fiber sensor was proposed. This paper presented design of circuits of high sensitivity photoelectric detection, signal amplification and noise reduction. Suitable data acquisition card and industrial control computer were selected. Monitoring software based on LabVIEW was designed. A mine microseism monitoring system based on optical fiber sensor was constructed. The test result shows that the system can realize goal of real-time monitoring and data storage.

Key words: optical fiber sensor, microseism monitoring, data acquisition card, LabVIEW