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itwo amplifiers and compare...

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Robin P. Clark 2013-08-08 09:35:53 +01:00
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submission_thesis/CH5_Examples/copy.tex
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@ -909,6 +909,10 @@ Were this failure to have safety implications, this FMMD analysis will have reve
this undetectable condition; this would likely prompt re-design of this
circuit. A typical way to solve an undetectable fault such as this is
to periodically switch in test signals in place of the input signal.
%
Alternatively, two amplifiers could be used with different gains, from the
same outputs, and the results scaled and then compared (perhaps in software)
to detect any failure.
%\footnote{A typical way to solve an un-observability such as this is
%to periodically switch in test signals in place of the input signal.}.