circuit to use GM temperature sensors for voltage based data acquisition input?

[Jason R. Haines]

I want to build a circuit to use the stock GM sensors in a standalone type
of application (not as part of the GM wiring harness/ECM). I have 5 volt, 10
volt, 12 volt and 13.8 volt power supplies already available in the data
acquisition system. I want as close to the full 10 volt range as possible
for the input into the data acquisition to improve reasolution and accuracy.
Yes, I could use 0 to1 volt but I'd rather not if I don't have to (the
display and transfer function is programmable so it doesn't even have to be
linear although it makes it much easier if it is).

Jason

>
> Just cause the Datalogging allows 0-10 doesn't mean you have to use it.
> the display maybe customizable (?<g>) to read just the 0-5 part anyway.
> Other then the air flow computation, the other stuff really isn't that
> critical.   And things like IAT sensors are rather slow to change anyway
> Bruce
>
> > Does anyone know what I need to do to build a circuit to be able to take
> > standard GM temperature sensors (IAT, ECT, oil temp.) and produce a 0 to
> 10
> > volt output for our data acquisition system. We currently have 12 vdc
and
> > 13.8 vdc power available although we could add some other DC power
supply
> if
> > needed.
> >
> > Sorry if this seems basic but that is what happens when you let
mechanical
> > engineers start working with electronics and electrical systems.
> >
> > Thanks,
> >
> >
> > Jason
> >
> >
>
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