The Applications of Ultrasonic Testing for PE Pipe

By measuring the longitudinal and shear wave velocity of PE pipe and its ultrasonic attenuation of hot-melt weld, the acoustic properties of PE pipe was determined. Wavelet denoising technique was used to remove noise, and it improved the monitoring of the echo signal-to-noise ratio. Experiments showed that ultrasonic testing method was suitable for the weld quality testing of PE pipe.