More DIY EGOR

[Bruce Plecan]

If your addressing me, the answer is I dunno
Bruce


> Would it work to use the resistance of the heater to help stablize the
temps? eg feed the heater from a constant current source?
>
> Previously, you (Bruce Plecan) wrote:
> {
> { Here's is some more info..
> { If you go experimenting on you own, be sure not to let the heater warm
too
> { quickly it can crack the inner workings of  the sensor
> {
> { And again please post here rather then email me.
> { Cheers
> { Bruce
> {
> {  > For the heater I have the resistance's  over a range of temps . All
this
> { equipment has up to date >calibrations The oven used is a lab quality
Blue M
> { oven. It has accuracy of +- 2 C  so please   >remember some error in
reading
> { is the fluctuations in temperature in chamber over time and >remember
+-2C
> { this would be worse case. I took this data to verify that my soft start
> { would
> { > work and not kill the heater and it looks that it will be ok.  The
data
> { can be charted and a equation >can be generated so you can project the
> { resistance at any temperature . This means you can use it >as a EGT
sensor
> { as well. I can graph this data as well and give you the equation.  I
don't
> { think this
> { >data is much help but it fills a hole in the spec. of this sensor.
Note
> { each reading had 1/2 hour to >stabilize and with a weight of 90 grams
and
> { using the rule of thumb of 1 hour per lb . It was given >more than
enough
> { time to stabilize.
> {
> { > Heater Data
> {
> { >   Temp (C)            Resistance (Ohms)
> { >             30                            3.13
> { >             50                            3.34
> { >             70                            3.56
> { >             90                            3.77
> { >           110                            3.98
> { >           130                            4.17
> { >           150                            4.37
> {
> {
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> QNX Software Systems, Ltd.           WWW: http://www.qnx.com
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