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Miniature Oxygen Sensor


Stanford Reference:

92-050


Abstract


This patented invention is a self-contained, integrated-structure, miniature, electochemical-type oxygen sensor which uses an oxygen ion conducting solid electrolyte. An encapsulated metal-metal oxide reference electrode on one surface of the solid electrolyte provides a reference oxygen pressure. A sensing electrode is placed on the other surface. The voltage developed between the reference electrode and the sensing electrode is indicative of the oxygen content of the fluid the sensing electrode is contacting.

Applications


  • Oxygen sensors
  • Solid oxide fuel cells
  • Oxygen pumps
  • Electrocatalytic reactors
  • Electrochemically-driven oxygen separation membranes

Advantages


  • Robust - the device is applicable to both high pressure and high temperature environments (such as found in automobile combustion and exhaust gas)
  • Self-contained metal-metal oxide oxygen reference electrode
  • Can be manufactured using microelectronic thin film technology

Publications



Innovators & Portfolio



Patent Status



Date Released

 6/11/2012
 

Licensing Contact


Luis Mejia, Senior Licensing Associate
luis.mejia@stanford.edu
(650) 725-9409 (Direct)

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Related Keywords


internal combustion engine   sensors: gas sensors   Fuel Cells   chemical: electrochemistry   Automotive   pump   process control   flue gas analyzer   Combustion   coal-fired plants   engine performance   catalysis   chemical analysis   chemical gas sensors   electrochemical sensors   automotive performance evaluation   solid oxide fuel cell   automotive sensors   energy: fuel cell   iFarm   
 

   

  

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S92-050 Miniature Oxygen Sensor