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Ashcroft's Blog

The Ashcroft blog provides helpful information about pressure and temperature instruments. Gain the knowledge you need to keep your business running!

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John Carissimi, Product Manager

For nearly four decades, John Carissimi has served Ashcroft Inc. in a wide variety of disciplines that span from advertising to applications engineering. As a Product Manager, John specializes in pressure system applications and precision calibration instrumentation.

Blog Feature

temperature sensor | thermocouple

How Does a Thermocouple Work?

By: John Carissimi, Product Manager
February 6th, 2023

Temperature can be measured with a variety of methods. Glass thermometers, resistance temperature devices (RTDs), bimetal instruments, gas expansion (gas-actuated) thermometers and infrared radiation, to name a few. Each offers a unique set of advantages for specific applications. Another extremely common temperature measurement device is the thermocouple. Its simple design makes it remarkably versatile, reliable and cost-effective. But how does a thermocouple work? This article will describe the function of thermocouples, the different types and their material composition.

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