Design and Development of Ultrasonic Testing Virtual Instrument

The optimization problem of ultrasonic testing instrument is studied in this paper. Using ultrasonic nondestructive testing technology to detect quality of products or parts, because the function of conventional ultrasonic testing instruments is custom-built and defined by manufacturers, it is very difficult to meet ever-changing testing requirements such as testing accuracy, testing efficiency and testing automation. In order to meet different testing needs in practical ultrasonic testing, an ultrasonic testing virtual instrument system is designed and developed by combining ultrasonic testing technology with virtual instrument technology, the system hardware is designed by combining FPGA with ARM, data is transmitted via Ethernet, echo signal noise is processed by using wavelet analysis, the system software is mainly developed by LabVIEW. The experimental results show that ultrasonic echo data can be collected, processed, analyzed and displayed by this system and be transmitted via Ethernet, this system is characterized by simple operation, flexible expansion, versatility and high performance.