Cheap O2 Sensors and reference air

Greg Hermann bearbvd at sni.net
Sun Oct 11 00:52:57 GMT 1998


>On Fri, 9 Oct 1998 18:09:37 +0000 xxalexx at ix.netcom.com writes:
>>> Ok, I'll bite. Could someone please explain to me how the reference
>air
>>> for an O2 sensor is inside the wire or comes from the wire? I had kind
>>> of figured there was an active layer (or layers), with thin conductive
>>> film electrodes on each side, which still allowed O2 to pass through,
>>> with the wires attached to the thin-film electrodes.
>>
>>There is a molecular diffusion transport mechanism involved.
>>The wires could release O2 at the boundary layer, from various
>>diassociation energies, such as cosmic rays or high temp, depending
>>on impurites and  mislocations but the amount would be small.
>>alex
>
>Also, if the muffler bearing is siezed, the gamma rays released by the
>accelleration of the exhaust valve faces won't have a straight shot to
>the O2 sensor.  This will cause the O2 sensor to drift out of calibration
>over time.
>
>Ray
>
And omigawd, don't forget to keep the sponson rods adjusted properly, or
everything else will come undone!!!

Greg





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