系统由程控电源、测试回路、信号采样、调理电路和数据采集接口卡等部分组成。
The system is composed of programmable power, test circuit, signal sampler, signal conditioner and data acquisition card.
硬件采用便携式工控机、通信接口卡和数据采集接口卡，软件基于虚拟仪器开发平台开发。
Hardware is designed based on portable industrial PC, data communication card and data acquisition card. Software is developed with virtual instrument development platform.
数据采集卡是一种把外界模拟信号转换成数字信号，并把数字信号输入到计算机系统的一种AD接口卡。
Data acquisition card is the AD interface card, which converts the analogy signal to the digital signal, and transfers the digital signal to the computer.
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