Composite material flaw detector based on a variety of ultrasonic techniques

Abstract

The composite material flaw detector based on multiple ultrasonic technologies relates to a flaw detector used for scanning flaw detection of composite carbon fiber, glass fiber reinforced plastic, and honeycomb sandwich composite parts. Including conventional ultrasonic probes, phased array ultrasonic probes and flaw detection host equipment; conventional ultrasonic probes use ultrasonic waves generated by a single piezoelectric chip for flaw detection scanning; phased array ultrasonic probes are composed of multiple small piezoelectric chips in a certain sequence, through The ultrasonic beams emitted by activating multiple chips interfere with each other to form new beams for flaw detection scanning; the flaw detection host device is the main device that integrates the electronic system control module, signal acquisition and processing module, main controller, and human-computer interaction module. The electronic system control module excites the piezoelectric chip in the ultrasonic probe according to certain rules and timing; the signal acquisition and processing module collects and processes the signal output by the ultrasonic probe; uses the main controller to display and set the parameters of the human-computer interaction module , which is convenient for users to operate.

Description

technical field [0001] The invention relates to the field of flaw detection and scanning of composite carbon fiber, glass fiber reinforced plastic, and honeycomb sandwich composite parts. The combination of conventional ultrasonic scanning and phased array ultrasonic scanning is used to perform flaw detection scanning on composite materials, and a human-computer interaction interface is used to display whether the composite material is There is damage. Background technique [0002] A composite material refers to a solid material with special properties that is selected and contains two or more components in a certain amount ratio. There are five common detection methods for flaw detection based on composite materials: eddy current testing, radiographic testing, magnetic particle testing, penetrant testing and ultrasonic testing. Ultrasonic flaw detection technology is one of the fastest developing and most widely used methods due to its advantages of fast detection speed, s...

AI Technical Summary

Problems solved by technology

The present invention solves the problems of single scan, slow detection speed, unclear display and inability to accurately determine flaw detection status in existing similar products

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