PC-based Ultrasonic Flaw Detector of Locomotive Axle
Chen Ma · Modern Electronics Technique · 2010
The device at home has disadvantages such as low sampling rate of data acquisition and incompetence in signal processing.A rail welding line flaw detection system designed for high quality and accuracy is introduced.The basic principles of Ultrasonic Flaw Detection(UFD) is proposed.Interface chip and Field Programmable Gate Array(FPGA) are used to facilitate echo signal processing speed and signal transfer speed.In this design,FPGA program is written with Very High Speed Integrated Circuit Description Language(VHDL) language which improves the performance of the system.Practice proves that the design is correct and feasible,and the design can satisfy the need.