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What is a Thermopile ?

Encyclopedia

08/02/2024

What is a Thermopile ?

Thermopile Definition

A thermopile is a device that converts heat into electricity using the thermoelectric effect, leveraging temperature differences across different metals.

Functioning Principle

Thermopiles generate voltage through the direct conversion of temperature differences into electric voltage, a principle discovered by Thomas Seebeck.

Voltage Production

The voltage output of a thermopile is proportional to the temperature difference and the number of thermocouple pairs, modulated by the Seebeck coefficient.

Types of Thermopile Sensors

Single-element thermopile sensor
Multi-element thermopile sensor
Array thermopile sensor
Pyroelectric thermopile sensor

Applications

Medical devices
Industrial processes
Environmental monitoring
Consumer electronics

Testing Method

To ensure proper functionality, thermopiles are tested using a digital multimeter set to DC millivolts to measure voltage output, which indicates operational integrity.

Topics

Power Systems Measurement Thermopile

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