Talk:Gas thermometer

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Currently redirects to Temperature. There is also more information at Thermodynamic instruments, but I think it deserves its own article given how important it is. In a way, seeing that it is often used in calibrating other thermometers, it's more important than them! -postglock 07:07, 2 June 2006 (UTC)[reply]

The description is misleading.

This description — 'A gas thermometer is a thermometer that measures the temperature of a gas by variation in the volume or pressure of the gas' is not correct. It gives the misleading impression that the thermometer’s purpose is to measure the temperature of a gas, which is not the intended application. The gas thermometer's purpose is to measure the temperature of anything. The indicator mechanism it relies on is confined gas expansion or pressure change with temperature, which allows a wide operating range and high accuracy. It can be used to measure the temperature of any liquid, gas, or solid to a high degree of accuracy, and they are often used as reference instruments.

A better description is: 'A gas thermometer is a reference thermometer that measures temperature over a wide range, using the pressure or volume change of a confined gas as its operating mechanism." StephenHumble (talk) 15:29, 20 August 2025 (UTC)[reply]