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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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commit 1af8fc13c2
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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 this undetectable condition; this would likely prompt re-design of this
circuit. A typical way to solve an undetectable fault such as this is 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. 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 %\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.}. %to periodically switch in test signals in place of the input signal.}.