The hardware of the tester is composed of FPGA chip by Xilinx, high-speed AD converters by Linear Technology, LED display, SD memory card, and condenser microphone, which complete noise signal acquisition, data display and save.
测试仪硬件由Xilinx公司的FPGA芯片、LinearTechnology公司的高速AD转换器、LED显示屏、SD存储卡、电容式传声器组成，完成噪声信号的采集、数据的显示和保存。