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修改时间 09-10-2012 01:02 AM
请教:pci 4472数据采集可以直接接入麦克风信号吗?
修改时间 09-17-2012 01:35 AM
Hi,
这个需要根据您具体的麦克风类型了。
I. 如果麦克风不需要4472的激励,输出的是电压信号,直接接给4472就可以了。(4472在程序上使用电压输入就可以了)
II. 如果麦克风需要激励,那么需要注意的是,4472只能提供电流激励(4mA),不能提供电压激励。如果需要电流激励的话,那么注意采用加速度计测量方式,以及换算单位。(此时的换算单位可以将加速度计的输出转换为电压信号)
Best wishes,
Application Engineer,
Xiaohui Wang
修改时间 09-18-2012 09:54 PM
What do you need our team of experts to assist you with?
Thanks!
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