Oxygen concentration detector

An oxygen concentration detector comprises a solid electrolyte 21, a sensing element 2 which consists of the solid electrolyte 21 coated on the surface with an outer electrode 23, a heater 3 provided inside the solid electrolyte 21, and a protecting cover 16 which protects the sensing element 2. The...

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Bibliographic Details
Main Authors KOJIMA TAKASHI, HAMAYA MASAHIRO, OTA MINORU, UCHIDA YASUHIRO
Format Patent
LanguageEnglish
Published 13.08.2002
Edition7
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:An oxygen concentration detector comprises a solid electrolyte 21, a sensing element 2 which consists of the solid electrolyte 21 coated on the surface with an outer electrode 23, a heater 3 provided inside the solid electrolyte 21, and a protecting cover 16 which protects the sensing element 2. The protecting cover 16 has two levels of openings 161, 162, the outer electrode 23 is constructed within the range defined by the length of the heat-generating part 31 of the heater 3, and the relationship between the length L1 of the heat-generating part 31 and the distance between the openings L2 of the two levels of openings 161, 162 in the axial direction is such that L1/L2=0.9 to 1.3.
Bibliography:Application Number: US19960593330