O2 Sensor Question

[Greg Hermann]

>I just looked at the LAF O2 sensor web page at
>http://www.tech2tech.net/training/laf.htm and I thought of some
>questions:

This is about a wide range, or UEGO sensor, not a typical one.
>
>1) What is the detection range of a typical lambda sensor?  I've
>   heard the range is very narrow.

For the typical HEGO, it is indeed very narrow. It basically say oxygen
present or not present. Best to consider it as a digital, or on/off sensor.
>
>2) Can the detection range be increased?

No.

The web page talks about
>   using a voltage to repel the oxygen ions to control the rate that
>   the ions reach the diffusion chamber.  If voltage is applied to a
>   normal sensor, what will happen?

But this is talking about a wide band, or UEGO sensor.
>
>Is there is good web page or book I can look at for more info.

An SAE paper # on the UEGO sensors is in the archives.

Regards, Greg
>
>Thanks
>
>Brian F.