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- Q13582294 subject Q7149786.
- Q13582294 subject Q8411406.
- Q13582294 subject Q8790127.
- Q13582294 abstract "When measuring the value of an alternating current signal it is often necessary to convert the signal into a direct current signal of equivalent value which is known as the root mean square (RMS) value. Most low-cost instrumentation and signal converters carry out this conversion by filtering the signal into an average rectified value and applying a correction factor.The value of the correction factor applied is only correct if the input signal is sinusoidal. The true RMS value is actually proportional to the square root of the average of the square of the curve, and not to the average of the absolute value of the curve. For any given waveform, the ratio of these two averages is constant and, as most measurements are made on what are (nominally) sine waves, the correction factor assumes this waveform; but any distortion or offsets will lead to errors. Although in most cases this produces adequate results, a correct conversion or the measurement of non-sinusoidal values requires a more complex and costly converter, known as a true RMS converter.".
- Q13582294 thumbnail Distortion_waveform.png?width=300.
- Q13582294 wikiPageExternalLink snoa690.pdf.
- Q13582294 wikiPageWikiLink Q1165717.
- Q13582294 wikiPageWikiLink Q120812.
- Q13582294 wikiPageWikiLink Q124164.
- Q13582294 wikiPageWikiLink Q127995.
- Q13582294 wikiPageWikiLink Q1591315.
- Q13582294 wikiPageWikiLink Q159241.
- Q13582294 wikiPageWikiLink Q174320.
- Q13582294 wikiPageWikiLink Q175973.
- Q13582294 wikiPageWikiLink Q176097.
- Q13582294 wikiPageWikiLink Q178947.
- Q13582294 wikiPageWikiLink Q207527.
- Q13582294 wikiPageWikiLink Q223323.
- Q13582294 wikiPageWikiLink Q249998.
- Q13582294 wikiPageWikiLink Q2996097.
- Q13582294 wikiPageWikiLink Q3396184.
- Q13582294 wikiPageWikiLink Q4265022.
- Q13582294 wikiPageWikiLink Q485005.
- Q13582294 wikiPageWikiLink Q570342.
- Q13582294 wikiPageWikiLink Q7149786.
- Q13582294 wikiPageWikiLink Q8411406.
- Q13582294 wikiPageWikiLink Q8790127.
- Q13582294 wikiPageWikiLink Q943122.
- Q13582294 comment "When measuring the value of an alternating current signal it is often necessary to convert the signal into a direct current signal of equivalent value which is known as the root mean square (RMS) value. Most low-cost instrumentation and signal converters carry out this conversion by filtering the signal into an average rectified value and applying a correction factor.The value of the correction factor applied is only correct if the input signal is sinusoidal.".
- Q13582294 label "True RMS converter".
- Q13582294 depiction Distortion_waveform.png.