Based on the current development status and advantages and disadvantages of various non-destructive testing technologies,an ultrasonic phased array non-destructive testing scheme was designed based on the principle of ultrasonic phased array technology.Based on this,a hydraulic support testing device was built,and non-destructive testing of hydraulic supports was implemented in the fully mechanized mining face.The results show that the ultrasonic phased array technology device can achieve non-destructive testing of underground hydraulic supports,and verify the resolution,accuracy,and sensitivity of the testing results,achieving the expected research objectives.
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