EGT for mixture setting

[Grant Beattie]

On Wed, 13 Mar 1996, Bruno! wrote:

> Is it practical to, put the cold junction into a lot of insulation, eg
> shove it into a giant block of polystyrene foam , or in a thermos
> bottle(?) and tuck it under the dash somewhere? in the extremes of heat
> and cold it may help to measure the temp of the juction with a thermistor,
> to compensate for the possible change in temperature. 

Don't bother.  Analog Devices (AD595) and Linear Tech (LT1025?) make cold 
junction compensator ccts and amps.  The circuit becomes a no-brainer and 
the output voltage is 10mv/deg C.

GB