Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1994-06-17
1997-10-28
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
338 22R, G01K 700
Patent
active
056811110
ABSTRACT:
A method and apparatus for determining the temperature of an environment at an elevated temperature (i.e., one exceeding about 300.degree. C.) wherein oxides that do not melt at such temperatures, do not age significantly at such temperatures and which have a sensitivity for such measurements are employed as thermistor resistors. Such oxides are calcium zirconate, yttria, alumina, dysprosia, magnesia, the oxide combinations alumina-silica, zirconia-silica and titania-silica. Measurements in electric current change is preferably the measurement of alternating current rather than the conventional dc current. A particularly useful instrument for such measurements consists of such a resistor with a laminate of connector metal such as diffusion bonded precious metal sheets or foils on separated surface areas as electrode connectors.
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Akbar Sheikh A.
Chen Weihua
Patton Virginia D.
Wang Ching C.
Cuchlinski Jr. William A.
Hirshfeld Andrew
The Ohio State University Research Foundation
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