NASA O2 sensor

[xxalexx at ix.netcom.com]

April 99  issue of NASA tech briefs has some minature light weight 02 
sensors. Do not look to techy, since not wide range,  have over a 
10ms response time, (which article said is the max for engine 
control), poor durability, temp control, and sensitivity.
So they must be very small or our tax money is reinventing the wheel.
Saving weight in a O2 sensor seems to be getting a little extreem.
but with 6 O2 sensors maybe small size also means small cost.
thou I think galium and silver paste is a liitle pricey.
alex