Question

Which thermometers are used to measure extremely high temperatures like a volcano?

Answer 1

Thermometer:

• A thermometer is a device that detects temperature or a temperature difference.
• A thermometer has two fundamental components: a temperature sensor that changes when the temperature changes, and a way to turn that change into a numerical number.

Pyrometer:

• A pyrometer is a device that measures temperature remotely. i.e by measuring the radiation of an object without the need for contact.
• It is a device used to measure high temperatures.
• Optical pyrometer and radiation pyrometer are two types of pyrometer.