O2 / Lambda Sensor Data

[Bruce Plecan]

All the one wire ones can reliably do is tell you when your rich (over .5v),
or lean (less then).    Anything else is like reading tea leaves.
When your done tuning, you might record what O2 voltage is was, and a
general reference but again, it's very general
Bruce



> I'm after some data on a 1-wire O2 sensor.  I'm planning to construct the
EGO meter
> as per diy-efi web site, but I still have some questions
> I'm planning to use a universal 1-wire sensor. But I can not find any
technical
> data on them.
> 1.  Does the sensor require a bias or excitation voltage?
> 2.  If the output voltage is self generating (albeit at high impedance)
what
> voltage corresponds to what oxygen level?
> 3.  what is the correlation to oxygen level and mixture ratio?
> I have already built the circuit but have yet to buy a sensor, any
recommendations
> would also be appreciated.
> Thanks.

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