Electrical calibration refers to the process of
verifying the performance of, or adjusting, any
instrument that measures, sources, or tests
electrical parameters. This discipline is usually
referred to as dc and low frequency ac electrical
metrology. Principal parameters include voltage,
current, resistance, inductance, capacitance,
time and frequency. Other parameters, including
electrical power and phase, are also in this
segment of metrology. Ratiometric comparisons
of similar parameters are often performed to
compare a known parameter to an unknown
similar parameter.
Electrical calibration involves the use of precise
devices that evaluate the performance of key
properties for other devices called units under
test (UUTs). Because these precise devices have
thoroughly known performance characteristics
compared to the UUT, performance evaluation
and/or calibration adjustment of the UUT to identify
or minimize errors is possible. Typically, the
performance of such precision devices should be
four or more times better than the UUT.
These precision devices fall into two broad
categories. Electrical signal sources are often
referred to as either calibrators or standards.
Precision measurement devices are often classified
as reference digital multimeters, measurement
standards, or ratio bridges.
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Electrical calibration
Electrical calibration
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