Design of ultrasonic signal acquisition system based on ZYNQ-7000
Aiming at the requirement of low power consumption and miniaturization of acquisition equipment in the field of non-destructive testing,an eight-channel ultrasonic signal acquisition system based on zynq-7000 is designed after analyzing the disadvantages of existing acquisition equipment.In the design,zynq7020 main control system is the core of the system,and FPGA is responsible for AD driver development.The ARM part is mainly responsible for data transmission and the control of the whole system.The system uses the ADS7946 chip with a sampling frequency of 2 MHz for analog-to-digital conversion,and combines the AXI-Stream protocol and Gigabit Ethernet interface to realize the interaction between the acquisition system and the PC host computer.Moreover,through the field acqui-sition and comparison experiment of ultrasonic signals,it is proved that the system realizes the acquisi-tion,transmission,storage and visualization of ultrasonic signals.
ZYNQ-7000ultrasonic signal acquisitiondata transmissiondata storage