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App note on rms measurement
App note on rms measurement
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Old 13th February 2003, 12:12 PM   #1
crown300 is offline crown300
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Exclamation App note on rms measurement

Several recent topics were about rms, peak, avg measurements and I just found this application note that seems rather timely:
http://cp.literature.agilent.com/lit...988-6916EN.pdf
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Old 13th February 2003, 01:38 PM   #2
EC8010 is offline EC8010  United Kingdom
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Yes, it's quite a nice tutorial.

More significantly. we should ask, "When do I actually need to measure true RMS?" I have a couple of true-RMS DMMs (chosen for their accuracy - true RMS was incidental), and the only time I have needed the true-RMS facility was when measuring valve heater voltages.

It's quite unusual to need true-RMS in audio (although THD+N is usually measured with an RMS rectifier).
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