Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1983-04-05
1984-07-10
Envall, Jr., Roy N.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
422 98, 73 23, 73 27R, H01L 700
Patent
active
044595778
ABSTRACT:
A combustion gas sensor and material therefore responsive to changes in the composition of ambient atmospheres wherein the sensing element includes SnO.sub.2 crystals having a means d of approximately 500-3200 .ANG. and having a surface area to mass ratio S of 1-8 m.sup.2 /g a process for making same. Preferably, the standard deviation of crystal size distribution is 0.2d.
REFERENCES:
patent: 4033167 (1977-07-01), Fujishiro et al.
patent: 4066413 (1978-01-01), Segawa et al.
patent: 4228128 (1980-10-01), Esper et al.
patent: 4260978 (1981-04-01), Yasuda et al.
patent: 4287751 (1981-09-01), Yasuda et al.
Ihokura Kousuke
Murakami Nobuaki
Tanaka Katsuyuki
Envall Jr. Roy N.
Figaro Engineering Inc.
Sears Christopher N.
LandOfFree
Gas sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1578848