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现场模拟信号产生器

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guojason|  楼主 | 2021-5-27 23:34 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
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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