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Linearity
The relationship between two quantities when a change in the first quantity is directly
proportional to a change in the second quantity.
Linearity Error
Linearity Error occurs when the true output vs. selected output response curve of a
calibrator is not extly a straight line. You can measure this type of error by plotting the
response curve, then measuring how far the curve deviates from the straight line at
various points.
MAP (Measurement Assurance Program)
A program for a measurement process. A MAP provides information to demonstrate that
the total uncertainty of the measurements (data), including both random error and
systematic components of error relative to national or other designated standards is
quantified, and sufficiently small to meet requirements.
Maximum Transfer Time
Maximum time that an AC-DC transfer can be made to stay within the stated AC-DC
absolute uncertainty.
Metrology
The science of, and the field of knowledge concerned with measurement.
Minimum V(Sub)in
For eh range of an / transfer standard, the minimum input RMS voltage for which
uncertainty specifications apply. Also see RMS.
Minimum Use Specifications
Specifications computed to satisfy the calibration requirements of measurement or source
device (UUT). Usually determined by a specified test uncertainty ratio between the
absolute uncertainties of the UUT and its required calibration equipment. Also see Test
Uncertainty Ratio.
Noise
An undesirable signal that is superimposed on a desired or expected signal. See "normal
mode noise" and "common mode noise".
Noise Floor
For an AC-DC transfer standard, the transfer uncertainty due to noise ftors.
Nonvolatile Memory
An electronic memory that retains its contents when the power is turned off.
Normal Mode Noise
An undesired signal that appears between the terminals of a device.
Glossary of AC-DC Transfer Related Terms
Appendices
A
A-5
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