Research on Multi-DOFs Flexible Air-Coupled Ultrasonic Testing System

In order to solve the problem of the large-scale complex surface composite testing, a multi-degree-of-freedoms flexible air-coupled ultrasonic testing system is designed by using the mature robot technology and air-coupled technology. Experimental results show that the system can not only meet the requirements of air-coupled detection, but also can use other non-destructive testing techniques such as water-coupled or water-jet-coupling ultrasonic inspection technology to form a variety of reflection and transmission detection systems, which greatly improves the efficiency of inspection and reduces the detection cost.