02 sensor - temprature compensation.

[Espen Hilde]

I think the type K sensor probe from:
http://www.westach.com/products.htm#ACCESORIES:
could be nice to use. 
The only thing you have to do to mount the probe is to drill a ca.3mm hole.
The probe comes with a hose clamp. price 42 usd. pn:712 -24dwk total length
48"
sensor output:
Deg.             mv
F
200             2.87
400             7.36
800             16.58
1000            21.31
1200            26.03
1400            30.70
1500            32.90
1600            35.24
1800            39.67

Resistance of K wire 
0.625 ohm per foot
4 feet 2.5 ohm


02 characteristics:http://www.splitsec.com/products/ego1/ego1ds.htm

Espen Hilde


, March 20, 1999 9:45 AM
> Subject: Re: 02 sensor - temprature compensation.
> 
> 
> The O2 sensor can catch individual cylinder firings way up in the rpm
band,
> and trying to isolate all that noise out of it seems like it would be a
> whole lot harder then just referencing a temp to current draw of the
heater.
> With the isolated grounds, it would be much easier...
> Bruce
> 
> >Just a thought... Why not use a cheaper 1 wire o2 sensor and monitor its
> >temperature by measuring the sensor's impedence.
> >Wen
> >> Subject: 02 sensor - temprature compensation.
> >> Need to have a second sensor, independent of O2 for sensing temp.
> >> Now if you used a heated O2 sensor and used the resistance of the
heater
> as
> >> an indication of the EG temperature, then your cooking.  Now that gm
has
> 4
> >> wire O2s that is something to look at......   830mv, can be 12.5 to
> 11.3:1
> >> depending on EGT.
> >> Bruce
> >> >Seems like its difficult to accept that a regular o2 sensor is not
> accurate
> >> >in
> >> >rich or lean and high temp conditions.
> >> > Making  wide band sensor circuit have stranded 2 times......maybe
its
> to
> >> >time consuming or to difficult?
> >> >The wide band sensor is expensive......
> >> >What about developing a temp compensating circuit for the LM 3914 
based
> >> >led meter?
> >> >Is this easy?
> >> >Maybe a led temp meter with it?
> >> >Espen Hilde
>