Solid state oxygen sensor

Patent · Tue Aug 06 00:00:00 EDT 1996

OSTI ID:288034

Garzon, F H; Chung, B W; Raistrick, I D; Brosha, E L

Solid state oxygen sensors are provided with a yttria-doped zirconia as an electrolyte and use the electrochemical oxygen pumping of the zirconia electrolyte. A linear relationship between oxygen concentration and the voltage arising at a current plateau occurs when oxygen accessing the electrolyte is limited by a diffusion barrier. A diffusion barrier is formed herein with a mixed electronic and oxygen ion-conducting membrane of lanthanum-containing perovskite or zirconia-containing fluorite. A heater may be used to maintain an adequate oxygen diffusion coefficient in the mixed conducting layer. 4 figs.

• Research Organization: University of California
• DOE Contract Number: W-7405-ENG-36
• Assignee: Univ. of California, Alameda, CA (United States)
• Patent Number(s): US 5,543,025/A/
• Application Number: PAN: 8-381,609
• OSTI ID: 288034
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DESIGN
DOPED MATERIALS
ECOLOGICAL CONCENTRATION
ELECTRIC POTENTIAL
MEASURING METHODS
OXYGEN METERS
YTTRIUM OXIDES
ZIRCONIUM OXIDES