Research Status and Prospect of Rock Mass Acoustic Emission Instrument
Acoustic emission technique based on sampling and disposing of the elastic wave caused by rock mass deformation, can comprehend the internal force, damaged degree of target component or material. Acoustic emission system as a dynamic non-destructive testing program, has now been widely used in various fields of engineering. Research on rock mass acoustic emission technology is to identify the stable status of the rock mass by using acoustic emission instrument to receive the elastic wave. Rock mass acoustic emission instrument requires high precision and high sampling frequency. The research status of the acoustic emission instrument and the problems appears in developing the device introduced in this article could be the reference for the future study.