EGO meter PC meter? -> was Re: EGOR future

[Walter Sherwin]

The major issue lies within the  linearization (or should I say
rationalization) of the WBEGO signal versus the actual A/F or Lambda number,
as well as the "free-air" calibration of the sensor.   Many hurdles to
overcome........   None of them minor.

Walt.




> Tom Sharpe wrote:
> >
> > I'd like to see us DIYers build a "meter" for the "module". Then we
could use it
> > as a separate tuner and/or as part of a feedback loop (and reward/blame
Gar for
> > his work). Any EEs out there?  Gar - any plans available for the display
1/2?.
> > Also, what is the Eurpoean (Euro) price for the sensor? - any currency
help over
> > there?
> > Best regards.  Tom S
>
> As for display... As a lot of people will (obviously) be using this
> for tuning, and (probably) using a laptop. Then I can't see why a
> bit of (free) software couldn't scale, massage, log, and otherwise
> not take the output of whatever sensor + electronics are used to
> measure the exhaust gas oxygen content. I'm envisaging a very simple
> bit of hardware that takes the electronic's output and converts
> it to something that a parallel port, a serial port, or whatever -
> that can be read by the software.
>
> In fact, that's probably the major stumbling block - laptops don't
> have that many readily accessible things to plug into - but I'd
> suggest a very simple (and inexpensive) interface for the parallel
> port would be the way to go - not much more than an A/D chip!
>
> Thoughts?
>
> Peter
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