Portable composite nondestructive detector based on eddy current technology and ultrasonic technology

Abstract

The invention relates to a portable composite nondestructive detector based on eddy current technology and ultrasonic technology and relates to a nondestructive detector for scanning and detecting pipes in the field of industrial metallic materials, electric power and petrifaction and metal members in the field of aviation. The detector comprises an eddy current probe, an ultrasonic probe and nondestructive detection host equipment; the eddy current probe is used for displaying a defect state of a detected conductor by analyzing and processing an eddy current signal generated when being located at a defect position of the detected conductor; the ultrasonic probe uses ultrasonic waves generated by a single piezoelectric crystal plate to carry out flaw detection and scanning; and the nondestructive detection host equipment is a piece of host equipment integrated with an electronic system control module, a signal collecting and processing module, a main controller and a human-computer interaction module. The electronic system control module stimulates the piezoelectric crystal plate in the ultrasonic probe according to a certain rule and timing sequence; the signal collecting and processing module is used for collecting and processing signals output by the eddy current probe and the ultrasonic probe; and the main controller is used for displaying and setting parameters of the human-computer interaction module, thereby bringing convenience for a user to operate.

Description

technical field [0001] The invention relates to the field of non-destructive testing of industrial metal materials, pipelines in the electric power and petrochemical fields, and metal parts in the aviation field. The method of combining eddy current testing and ultrasonic testing is used to detect the flaws of the tested materials, and the tested materials are displayed through the human-computer interaction interface. Whether there is damage. Background technique [0002] Commonly used non-destructive testing methods include eddy current testing, radiographic testing, magnetic particle testing, penetrant testing and ultrasonic testing. Eddy current testing has the advantages of fast detection speed, high sensitivity of surface and subsurface detection, and high temperature resistance; ultrasonic testing has the advantages of strong penetrating power and high detection sensitivity; eddy current testing and ultrasonic testing are the fastest growing and most widely used nonde...

AI Technical Summary

Problems solved by technology

The invention solves the problems that existing similar products have limitations in detection objects, single detection method, slow detection speed, unclear display, and inability to accurately and intuitively determine flaw detection status

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