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going way out on a limb here... [message #17628 is a reply to message #17627]

Thu, 03 March 2005 16:44

wunhuanglo
Messages: 912
Registered: May 2009

Illuminati (2nd Degree)

the dvm probably measures rms ac voltage. the accuracy of that measurment decreases with frequency. at 60 hz rms voltage is [2^0.5]/2 of the peak voltage. i think your 2.83v is really 2.83/0.707 peak volts

with pink noise (equal power in each octave?) you've got a bunch of frequencies, not a single sine wave, so i can't begin to guess how the rms value relates there.

just a little rambling from what little i think i know ;-^

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[Message index]

		Measuring sensitivity By: JLapaire on Thu, 03 March 2005 12:37
		going way out on a limb here... By: wunhuanglo on Thu, 03 March 2005 16:44
		Re: going way out on a limb here... By: footstony on Thu, 03 March 2005 19:03
		Re: going way out on a limb here... By: Bill Fitzmaurice on Thu, 03 March 2005 20:13
		Re: going way out on a limb here... By: JLapaire on Mon, 07 March 2005 05:57
		Re: going way out on a limb here... By: Wayne Parham on Mon, 07 March 2005 21:11
		Reference distance By: JLapaire on Tue, 08 March 2005 05:59
		Re: Reference distance By: Bill Fitzmaurice on Tue, 08 March 2005 13:12
		Re: Measuring sensitivity By: DRC on Sun, 06 March 2005 15:59
		Re: Measuring sensitivity By: JLapaire on Mon, 07 March 2005 06:30
		Re: Measuring sensitivity By: DRC on Mon, 07 March 2005 07:08

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