The ae sensor calibrationsystem based on pulsed surface wave sound field was built several commercial and self-made ae sensors had been calibrated on it.
建立了基于脉冲表面波声场的声发射传感器标定系统，对商用和自制的几种声发射传感器进行了标定。
2
At the same time, the selfcalibration of an automatic test system is an important problem to be solved, and it affects the system's test accuracy directly.
同时，自动测试系统的自校准也是一个重点需要解决的问题，它直接影响到系统的测试精度。
3
The redundant measurement system presents many powerful characteristics such as selfcalibration, recovering the lost information, error compensation and so on.