How is air temperature measured?
Air temperatures are measured with mercury-in-glass thermometers shielded from radiation by being enclosed in some form of screen.
You can find some of the best air temperature measuring devices like thermometers nowadays.
Let’s understand how air temperature is measured with thermometers. Basically, common thermometers consist of a glass rod with a very thin tube in it. The tube contains a liquid that is supplied from a reservoir, or bulb, at the base of the thermometer. Sometimes the liquid is mercury, and sometimes it is red-colored alcohol.
When the tip of the mercury thermometer touches the material, it is measuring, the material conducts heat energy to the mercury. Then the mercury expands as it turns into a liquid and begins to rise up the tube. The place where the mercury stops on the scale is where you can take the reading of the temperature.
