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Design of a Novel Dual-core Ultrasonic Nondestructive Testing System Based on ARM and FPGA

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DOI: 10.23977/icmmct.2019.62149

Author(s)

Chao Peng, Weiheng He, Yue Song, Sha Zou

Corresponding Author

Chao Peng

ABSTRACT

In this paper, a new system for nondestructive testing in the field of ultrasonic nonmetal detection is designed. The paper first analyzes the design difficulties and technical challenges in the ultrasonic nondestructive testing system. Then the complementarity between ARM and FPGA is used to design a complete set of ultrasonic non-destructive testing system with dual core as the main control. The system mainly includes ultra low noise variable gain amplifier module VGA, anti-aliasing filter module, high speed digital-to-analog converter module ADC, precision gain control DAC, precision voltage source and clock source module and ARM+FPGA master module. Finally, the correctness and rationality of the design are verified by establishing the circuit model of digital signal processing and the actual circuit. The dual-core ultrasonic nondestructive testing system designed in this paper not only has good expansibility, is easy to use in the field, but also has smaller size and lower power consumption. At the same time, it can further reduce the hardware cost of the ultrasonic imaging system, and also lay a solid foundation for other ultrasonic testing systems and equipment, and has good engineering application value.

KEYWORDS

Nondestructive testing,ultrasound imaging, ARM, FPGA

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