Design of Ultrasonic Guided Waves Signal Generator Based on FPGA

2019 2nd International Conference on Advanced Materials, Intelligent Manufacturing and Automation

Yang, Jie^1^2 ; Qu, Zhigang^1^2

College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin

300222, China^1

Advanced Structural Integrity International Joint Research Centre, Tianjin University of Science and Technology, Tianjin

300222, China^2

关键词: Descaling systems;    Excitation signals;    Experimental verification;    High-precision;    Transmission distances;    Ultrasonic guided wave;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/569/3/032022/pdf
DOI  :  10.1088/1757-899X/569/3/032022

来源: IOP

【 摘 要 】

Ultrasonic guided waves have been widely concerned in recent years due to their long transmission distance, wide coverage, and no influence on production. In the future, they have great potential to become a new descaling method widely used in industry. Piezoelectric ultrasonic transducer is an actuator based on ultrasonic guided waves descaling system, which requires high-precision signal source to drive. This paper designs a high-precision signal generator based on FPGA. The DDS signal generator based on FPGA and the ultrasonic guided waves descaling system based on FPGA are introduced. Through theoretical analysis and experimental verification, the test results show that the FPGA-based signal generator can generate the required excitation signal, and the FPGA-based ultrasonic guided waves descaling system proposes a new descaling method for the industry.