[Diy_efi] Lead fuel compaible O2 sensor

gary gas-
Mon Jul 4 03:23:35 UTC 2005


> And the heart of a WBO2 sensor is a NBO2 sensor, it just 
> uses an ion pump to move oxygen around to keep the NBO2
> sensor in the "middle" at Lambda=1.

It is the job of  the WB sensor 'controller' to regulate the current 
required for that pump cell to move the oxygen around. 

Adding more to the above referenced statement, in the interest 
of providing more info, to more fully understand principle...
The job of the controller of the WBO2 sensor, is then to regulate 
the pump current, the current required to "move oxygen around to 
keep the NBO2 sensor in the middle" at stoich, or lambda 1.0.  
The required current is then a measure for the A/F ratio.

GAS  


----- Original Message ----- 
From: "Adam Wade" <espresso_doppio at yahoo.com>
To: <diy_efi at diy-efi.org>
Sent: Sunday, July 03, 2005 9:18 PM
Subject: Re: [Diy_efi] Lead fuel compaible O2 sensor
> 
> The term "Lambda sensor" is much more often applied to
> NBO2 sensors.  In fact, I don't think I've ever heard
> anyone refer to a WBO2 as a "Lambda sensor".  And the
> heart of a WBO2 sensor is a NBO2 sensor, it just uses
> an ion pump to move oxygen around to keep the NBO2
> sensor in the "middle" at Lambda=1.





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