Full Digital Phased Array Ultrasonic Nondestructive Testing System Software Algorithms Achieve

This paper is based on the project All-digital Phased-Array Ultrasonic Detection System assigned by Shanghai Science & Technology Commission. The main content is about the arithmetic and implementation.First of all, this paper introduces the whole design project and interrelated knowledge about Non-destructive detection, ultrasonic detection, and Phased-Array ultrasonic detection Then the paper depicts the principle of Phased-Array focus and abstracts a set of math model and feasible arithmetic on the base of the real parameter of the system. Put forward several problems that exist during the course of system development and program. Introduce some measures of distinguish that are often used in non-destructive detecting and echo wave crest. Then I depict one of the measures in detail that used in the course of non-destructive detection, which is the way of distinguishing whether defects exist or not. Then provide part core program to realize it. This paper also provides main flow chart through analyzing how main control program controls different parts to make the whole system more effective.Several core technologies that need to be advanced and developed in future in this project is expected and analyzed at the end of the paper.