Modifying O2 output
Jens Knickmeyer
knick at ibr.cs.tu-bs.de
Thu Sep 28 10:37:44 GMT 1995
<CICIORA STEVEN JOSEP> wrote:
> I think I remember reading somewhere (this list? the hotrod list?)
> that one way to get a little bit more liniarity out of an 02 sensor is to
> apply (something like) 0.6 v to it and measure the current into or out of
> it. I also seem to remember seeing a circuit that will switch a load
>From a WWW page about O2 sensors, I got the following information:
--> start of quotation <--
Almost always, the answer is no. You must be careful to not
*apply* voltage to the sensor, but measuring it's output voltage
is not harmful. As noted by other posters, a cheap voltmeter
will not be accurate, but will cause no damage. This is *not*
true if you try to measure the resistance of the sensor.
Resistance measurements send voltage into a circuit and check the
amount returning.
--> end of quotation <--
So Steven's input confuses me a bit. May I apply voltage to an O2 sensor
or not? Any inputs welcome.
Jens
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