Lambda Sensor

[Mike Blakey]

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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