What instrument measures thermal radiation?

Answer 1

A pyrometer or pyrometric cones are used to measure furnace and kiln temperatures resulting from radiant heat. A pyrometer is a ceramic base into which 4 to 6 pyrometric cones, which melt at different temperatures, are inserted. Placing this into a furnace opening which is out of the normal gas passes, in direct view of the flame, and can be sealed from in-leakage of cooler air, will give you a general idea of a flame temperature (radiant heat). If it is inserted into a gas pass it will give convective heat temperatures. By knowing the temperature at which each cone melts you can get a close approximation of a flame or furnace temperature.

More modern line of sight infrared-laser thermal imaging guns can give direct readings of surface or flame temperatures, and are more accurate. Thermocouples though must be used in convective gas passes.

Answer 2

An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called blackbody radiation emitted by the object being measured. They are sometimes called laser thermometers if a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns, to describe the device's ability to measure temperature from a distance. By knowing the amount of infrared energy emitted by the object and its emissivity, the object's temperature can often be determined. Infrared thermometers are a subset of devices known as "thermal radiation thermometers

Answer 3

According to Scientists, most astronomers use thermometers and x-rays to evaluate the sunâ??s radiation including heat and light to determine the temperature.

Answer 4

Pyrometer.

Answer 5

AOEMETER