The 1250 series of Frequency
Response Analyzers (FRA) provide a
range of accurate solutions for the
measurement of gain and phase.
The device under test is stimulated by
a sinewave and the response analyzed
at one, two or more points in the
system. These responses are then
correlated with the stimulus to
determine the amplitude and phase
relative to the generator. The ratio of
the two measured signals can then be
used to provide the system transfer
function.
This process rejects all harmonics and,
by increasing the integration time,
even signals which are buried in noise
can be measured accurately.
The 300V range on the 1250 series is
particularly useful for making
measurements on fuel cell stacks and
high voltage batteries, used in hybrid
vehicles and residential power supplies.
