Fluke 5790B, Руководство по обслуживанию

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Appendices
Glossary of AC-DC Transfer Related Terms
A
A-5
Life-Cycle Cost
The consideration of all elements contributing to the cost of an instrument
throughout its useful life. This includes initial purchase cost, service and
maintenance cost, and the cost of support equipment.
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 exactly 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 each range of an AC/DC 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 factors.
Nonvolatile Memory
An electronic memory that retains its contents when the power is turned off.