Experimental Research on Inclusion Defects in Polyethylene Pipe Using Micro wave Detection Technology
Polyethylene(PE)pipe defects,such as inclusion defects,are easily affected by factors such as manufacturing process,material characteristics and working environment.Traditional non-destructive testing methods such as X-ray and ultrasonic methods have obvious shortcomings in the defect detection process for PE pipes.The new detection method,microwave detection method,has been theoretically deduced and thoroughly analyzed.At the same time,the microwave transmission mode in PE pipes and the amplitude phase inversion principle for PE pipe inclusion defect geometric information were introduced.Experiments were conducted for PE pipe samples with inclusion defects using vector network analyzer as the transceiver of microwave signals.The experimental results showed that the microwave detection method based on amplitude phase information inversion is effective in the detection process for PE pipes with inclusion defects.