Do not understand RMS voltage
Hello
I have to write a measurement software that uses a NOR-DAQ 6071E. C++ is used as programming language and the new DAQmx interface is used and seems very well at the moment.
Now, I have a few Questions about the two functions
DAQmxCreateAIVoltageChan
DAQmxCreateAIVoltageRMSChan
The first give me the unmodified sampled values?
The second makes some calculation on each sample?
I need to create the average arithmetic and the RMS of the samples. These features help me with that. Or do I have to do the calculations on my own?
I know I have to do the calculations on mine, which is not a problem.
Would be great for some advise
BR
Hans-Jürgen Lange
Hi Hans-Jürgen,
The DAQmxCreateAIVoltageRMSChan() function is only supported for the integrated DMM to the NI ELVIS II and NI ELVIS II +. For the OR 6071E, you need to use DAQmxCreateAIVoltageChan() and do the calculations yourself.
Brad
Tags: NI Hardware
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