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修改时间 11-07-2014 07:51 PM
已解决! 转到解答。
修改时间 11-10-2014 09:36 PM
9203是电流输入模块,上面没有电压信号低通滤波电路和热电偶的温度补偿电路;热电偶是电压信号,而且是mV级的电压,两者相差太远了,几乎可以认为是不能采集的。
你可以尝试使用精密电阻把热电偶信号转化为电流信号,然后自己搭建一个温度补偿电路,在LabVIEW里面对信号进行软件滤波和平均,然后结合温度补偿值来计算实际温度值。但这种方法测出来的温度值误差可能会很大。
修改时间 11-10-2014 09:53 PM
9203是电流测试模块,热电偶输出是电压,无法进行测量。除非你使用的传感器可以输出4-20mA电流信号
修改时间 03-19-2017 03:35 AM
谢谢
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