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The precision and the bandwidth of the conversion is entirely dependent on the analog to digital conversion. In most cases, true RMS measurements are made on repetitive waveforms, and under such conditions digital oscilloscopes (and a few sophisticated sampling multimeters) are able to achieve very high bandwidths as they sample at much higher ...
RMS, RMS or rms) of a set of numbers is the square root of the set's mean square. [1] ... True RMS converter; Notes References. External links. A case for why RMS is ...
The Blackmer RMS detector is an electronic true RMS converter invented by David E. Blackmer in 1971. The Blackmer detector, coupled with the Blackmer gain cell, forms the core of the dbx noise reduction system and various professional audio signal processors developed by dbx, Inc.
For example, in early digital multimeters, true RMS functions were provided by external analog multiplier circuits. Nowadays (with the exception of high-frequency measurements) the tendency is to increase the sampling rate of the ADC in order to digitize the input signal allowing RMS and a whole range of other functions to be carried out by a ...
True RMS conversion; Extending the dynamic range of other circuits, used for: Automatic gain control of transmit power in radio frequency circuits; Scaling a large dynamic range sensor (e.g. from a photodiode [2]) into a linear voltage scale for an analog-to-digital converter with limited resolution [1]
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The squaring in RMS and the absolute value in ARV mean that both the values and the form factor are independent of the wave function's sign (and thus, the electrical signal's direction) at any point. For this reason, the form factor is the same for a direction-changing wave with a regular average of 0 and its fully rectified version.
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