Acoustic emission technology

Acoustic emission (ae) technology as one of the early detection of material injury powerful tool has been widely used in petroleum, petrochemical, power, aviation, aerospace, metallurgy, railway, transport, coal, construction, machinery manufacturing and other processing, at low speed Overload device diagnostics field acoustic emission-line monitoring for port Crane (mobile crane bearing), providing more accurate information to the low-speed rolling bearing fault diagnosis, discussed the application of acoustic emission sensors to monitor the speed (10 ~ 1850) r / min angular contact bearing, found at low speed acoustic emission sensors in each pair of bearing balls bearing concentrated loads caused by small strain responsive, further evidence of the effectiveness of the acoustic emission technique.