Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1979-03-12
1980-11-04
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
G01K 718
Patent
active
042312540
ABSTRACT:
Thermistors comprising transition metal such as iron, rare earth of the lanthanide series or yttrium, and oxygen exhibit sufficient independence to variation in oxygen partial pressure over a range of exhaust gas conditions of internal combustion engines as to make them particularly suitable for temperature compensation of oxygen sensors such as those derived from titania as well as temperature sensing in other oxygen varying environments.
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Ganguly et al., "Electron Transport and Magnetic Properties of Rare Earth Ortho-Titanites and -Vanadites, LnTiO.sub.3 and LnVO.sub.3 ", Indian Inst. of Tech., 1976.
Laud Kamlakar R.
Logothetis Eleftherios M.
Park John K.
Ford Motor Company
Johnson Olin B.
Kreitman Stephen A.
Ross Jr. Edmund C.
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