Study on the Calibration of Acoustic Emission Sensor for Pipeline Leakage Testing
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摘要: 介绍了声发射传感器标定原理及几种常用标定方法的模拟声源的特性。提出了将比较法应用于管道泄漏检测的声发射传感器的标定。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。标定结果和探头使用效果证明，比较法标定声发射传感器是可行的。Abstract: The calibration theory of acoustic emission(AE) sensor and the characterstics of several common simulated AE sources were introduced. A simple calibration method (comparative method) was presented to calibrate AE sensor used on pipeline leakage testing. The AE sensor calibration system based on pulsed surface wave sound field was built, several commercial and self-made AE sensors had been calibrated on it. The result of calibration and the effect of probe usage proved that the comparative method is viable on the calibration of AE sensor.
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Keywords:
- Acoustic emission /
- Leakage testing /
- Sensor /
- Calibration
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