What is the tool used to measure volcano heat?

Answer 1

Lava that is still inside a volcano is called magma. Lava can reach temperatures of 1200 degrees celsius, which is too hot for scientists to use a normal thermometer (the kind you use at home or in school). Instead, scientists use an instrument called a thermocouple.

This is made of two wires of different types of metal which are joined to an electrical source (usually a battery). When the electric current passes through point where the two wires are joined, the resistance of the current can be measured. This electrical resistance is very sensitive to the temperature, and so this can be measured using an ammeter and converted to a temperature reading.The type of thermocouple used for measuring lava can work up to temperatures of 1600 degrees Celsius, as the melting point of the two wires, and the ceramic insulation and stainless steel protecting the wires are all higher than the temperature of lava.Another way of measuring the temperature is to do it from a short distance (remotely) using an instrument called an optical pyrometer. This is a bit like a telescope with filtered lenses. A scientist will point this at the lava and adjust an electrical filament (like in an old fashioned light bulb) until the two colours match. They can then work out how hot the lava is

Answer 2

For surface temperature:

Use a digital pyrometer with a really long range. Note that any black char/solidified lava on the surface will be much cooler (relatively speaking) than the core.

Or use a thermocouple probe for a core temperature

Answer 3

Examples: resistance thermometers, thermocouples, pyrometers.

Answer 4

No,it can't be used because if it is used for volcanic lava.The thermometer will blast because the temprature of lava is more than to 600 C. AND the glass can't Protect itself from this much heat.

Answer 5

IR Thermometer

Answer 6

there is none

Answer 7

A 'pyrometer'