现场模拟信号产生器:自制一正弦波信号发生器，利用可变电阻改变振荡频率，使频率在20OHz~2MHz范围变化，再经频率电压变换后输出相应1~丽直流电压（20OHz对应17，2k对应5)。
(2〉八路数据采集器∶数据采集器第1路输入自制1~5直流电压，第2~7路分别输入来自直流源的5，4， 3，2 1，直流电压（各路输入可由分压器产生，不要求精度〉﹐第8路备用。将各路模拟信号分别转换成8位二进制数字信号，再经并/串变换电路，用串行码送入传输线路。
(3）主控器:主控器通过串行传输线路对各路数据进行采集和显示。采集方式包括循环采集（〈即1路、2路..8 路、n.1路〉和选择采集〈任选一路）二种方式。显示部分能同时显示地址和相应的数据。
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