O2 sensors-linearity and adjustment?

[Craig K Yandow <Craig.K.Yandow@aero.org>]

So, how do the fuel injection computers adjust for inevitable differences in 
the sensitivity of O2 sensors?  I bet even factory spec versions have 
differences in sensitivity and linearity.   Seems to me that the real fear is 
that using an 02 sensor with different slope on o2 vs whatever curve will 
result in an over rich or too lean condition - each with consequences?

Is there a process, manual or automatic,  that adjusts the O2 sensor to the 
system it is in?  Or are we to believe that all of them are manufactured to 
same sensitivity and linearity?
Regards,
Craig