Brian Scott Haskett
haskett at cs.utexas.edu
Fri May 6 13:10:21 GMT 1994
Can someone who is electrically-inclined please explain how O2 sensors
are read? I understand the output of the sensors (basically an s-curve
that is an on/off switch, between 0 and 1 volt), but do you read this
voltage? I have heard that due to something (high-impedance?), you
cannot read this voltage with a normal voltmeter or you will ruin the
sensor. Can someone explain WHY this is and what the correct way to read
the sensor is? Also, how will we read the sensor for our EFI system?
Will a regular A/D board be able to do it?
PS I have no idea what impedance is.
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