US PATENT SUBCLASS 324 / 451
A MATERIAL PROPERTY USING THERMOELECTRIC PHENOMENON


Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

451A MATERIAL PROPERTY USING THERMOELECTRIC PHENOMENON


DEFINITION

Classification: 324/451

A MATERIAL PROPERTY USING THERMOELECTRIC PHENOMENON:

(under the class definition) Subject matter wherein an electromotive force is generated by a temperature difference between the junctions in a circuit composed of two homogeneous electrical conductors of dissimilar compositions; or in a nonhomogeneous conductor, an electromotive force is produced by a temperature gradient in a nonhomogeneous region and used to identify the different types of materials forming the junctions or to measure properties of these materials.

(1) Note. This thermoelectric effect is often referred to as the Seebeck effect.

(2) Note. The material under test forms an integral part of the thermoelectric junction across which the electromotive force is generated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106, for measuring electricity, per se, having means whose temperature is varied in accordance with the electricity being measured.

SEE OR SEARCH CLASS

374, Thermal Measuring and Testing, 179+, for a thermometer having a thermoelectric sensor.