Design of the Multi-channel Ultrasonic Signal Acquisition and Denoising Based on FPGA

Ultrasonic signal acquisition and denoising processing are the important parts of nondestructive testing. This paper shows a new design based on FPGA (Field Programmable Gate Array) to overcome the disadvantage of the traditional design such as data acquisition control by the lower computer and processing by the up computer. This design can not only improve the speed of data acquisition but also reduce the random noise efficiently. The whole system is miniaturized by using a single chip to decrease many peripheral instruments and reduce cost and power dissipation.