Water immersion ultrasonic flaw detection system and method

Abstract

The invention relates to a water immersion ultrasonic flaw detection system and method. The system comprises an ultrasonic probe, an ultrasonic processing module, a motion control module, a motion execution mechanism, an industrial control computer and a water tank, wherein the ultrasonic probe is used for transmitting an ultrasonic emission signal to a to-be-detected workpiece and receiving an ultrasonic echo signal; the ultrasonic processing module is used for generating the ultrasonic emission signal under the control of the industrial control computer, processing the echo signal and outputting the detection echo signal to the industrial control computer; the motion control module is used for receiving a motion command of the industrial control computer and controlling the motion execution mechanism to complete automatic ultrasonic scanning of a motion track. The method comprises the following steps: ultrasonic detection setting parameters and the motion command are set in the industrial control computer, and output to the motion control module and the motion execution mechanism so as to realize automatic ultrasonic scanning of the motion track. The special ultrasonic processingmodule is manufactured to increase the ultrasonic signal processing speed, and a foundation for accuracy of ultrasonic flaw detection results is laid. The system and the method are successfully applied to nondestructive detection of aviation composite cake disc parts, and good application effect is achieved.

Description

technical field [0001] The invention relates to the technical field of nondestructive testing, in particular to a water immersion ultrasonic flaw detection system and method. Background technique [0002] Non-destructive testing technology is considered to be an important pillar of modern industry, and ultrasonic flaw detection is one of the main means of non-destructive testing. It is an indispensable means to improve product quality and promote technological progress. Since ultrasonic flaw detection uses the influence of the acoustic properties of the material itself or internal defects on the propagation of ultrasonic waves, it can non-destructively detect the internal and surface defects of materials, and is widely used in various fields such as machinery manufacturing, transportation, national defense, and electric power. [0003] Water immersion ultrasonic testing is a technology in which the probe and the test piece are fully or partially immersed in water, water is u...

AI Technical Summary

Problems solved by technology

The early water immersion ultrasonic flaw detection system can no longer meet the needs of the development of flaw detection technology, and some key performance indicators can no longer meet the needs of actual flaw detection

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