From f372fe799027045c8409e928d3550cd9b1bfbcca Mon Sep 17 00:00:00 2001 From: Robin Clark Date: Thu, 24 Feb 2011 13:47:07 +0000 Subject: [PATCH] . --- pt100/pt100.tex | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/pt100/pt100.tex b/pt100/pt100.tex index 1dbc9c0..29fb246 100644 --- a/pt100/pt100.tex +++ b/pt100/pt100.tex @@ -3,8 +3,15 @@ \ifthenelse {\boolean{paper}} { \begin{abstract} -This paper shows a practical example of a functional group of base components -used to create a derived component. An industry standard temperature measurement circuit, +This paper shows a practical example of +one `symptom~abstraction' stage in the FMMD process. +We take a functional group of base components, +and using their failure modes, analyse the circuit +to find failure symptoms. +These failure symptoms are used to define +a derived component. +% +An industry standard temperature measurement circuit, the PT100 is described and then analysed using the FMMD methodology. A derived component, representing this circuit is then presented. @@ -30,13 +37,20 @@ from an FMEA persepective as a component itself, with a set of known failure mod } { \section{Overview} -This chapter intends to show a practical example of a functional group of base components -used to create a derived component. An industry standard temperature measurement circuit, + +This chapter shows a practical example of +one `symptom~abstraction' stage in the FMMD process. +We take a functional group of base components, +and using their failure modes, analyse the circuit +to find failure symptoms. +These failure symptoms are used to define +a derived component. +% +An industry standard temperature measurement circuit, the PT100 is described and then analysed using the FMMD methodology. A derived component, representing this circuit is then presented. - The PT100, or platinum wire \ohms{100} sensor is a widely used industrial temperature sensor that is slowly replacing the use of thermocouples in many