GM Coolant sensor

[dzorde at aesprodata.com.au]

     That is what they are for, but wouldn,t it be great to get rid of an 
     op-amp.  Hence try and reduce the amount of circuitry required.  
     Something like a simple LCD temp read out (very useful for diff, 
     gearbox and water in race cars), temp sensor, a small resistor divider 
     and a panel meter, and its guarranteed to be very reliable, once you 
     start throwing in op-amps, etc.  you need very steady power supply 
     rails to avoid inaccurate readings.  So is there a positive temp 
     coefficient sensor around ? (could always make one if I have to, but 
     its easier if there's a car that's already using one).
     
     
     Dan        dzorde at aesprodata.com.au 


______________________________ Reply Separator _________________________________
Subject: Re: GM Coolant sensor
Author:  diy_efi at coulomb.eng.ohio-state.edu at INTERNET
Date:    9/18/96 11:19 PM


>     Does anyone know if there's a positive curve temp sensor around, ie. 
>     increasing voltage for increasing temp.  Would make life a lot easier 
>     for analogue circuitry.
>     
>     Dan        dzorde at aesprodata.com.au
     
I thought that's what inverting amps were for. 
Tom