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Scharnberger Hasenbein electrical components are pyroelectric infrared sensors, devices constructed from thermocouples. They are widely used as temperature detection devices in fields such as ear thermometers, radiation thermometers, electric ovens, and food temperature testing. The article details the basic unit of a thermopile—the thermocouple—and provides a detailed introduction to the structure, working principle, main parameters, and applications of thermopiles. Scharnberger Hasenbein electrical component parameters potentiometer main