Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1992-04-28
1993-10-12
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
1362361, 136238, 136225, G01K 702, H01L 3512
Patent
active
052519813
ABSTRACT:
The invention relates to thermocouples which are formed from a junction of ruthenium oxide (RuO.sub.2) and iridium oxide (IrO.sub.2). The resulting thermocouple produces a typical electrical output of about 4.5 .mu.V/k at 40.degree. C. to about 4.1 .mu.v/K at 200.degree. C. The thermocouples are extremely resistant to corrosion and thus may be used for direct contact with corrosive environments such as halide containing acids, cyanides, chlorates or peroxides. Because the thermocouples can directly contact the environment, they are 100 to 1000 times faster than commercially available sheathed sensors.
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Bennett G. Bradley
Cuchlinski Jr. William A.
Poulos, III James A.
United States of America, as Represented by the Secretary of Com
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