absolute quantization error one-half the instrument resolution
absolute sensitivity coefficient change in a result due to an incremental change in a particular variable
absolute uncertainty uncertainty in a particular variable
accuracy closeness of agreement between a measured and true value
active requiring an external power supply to produce a voltage or current output
active filter filter composed of operational amplifiers, resistors, and capacitors
aleatory caused by inherent randomness and/or finite sampling
aliasing false lower frequencies created by a sampling rate less than twice the highest frequency of interest
almost-periodic comprised of two or more sinusoids of arbitrary frequencies
alternating current (AC) current varying ...
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