What is an infrared thermometer?

Infrared thermometers are a device used to remotely measure temperature in situations where it is not possible to be in physical contact with the measured object. This includes objects that are very hot, very small or very far away. Infrared thermometers are also suitable for measuring objects, which are particularly susceptible to minor temperature changes or covering huge areas that use conventional thermometers of impractical. Binocular -shaped equipment - infrared thermometers use the fact that above absolute zero all objects emit electromagnetic radiation or energy. By measuring the energy issued in two different regions of the wool length of the infrared part of the spectrum internally compares different values ​​in a ratio that corresponds to the known set of values ​​connecting energy distribution with wavelength with temperature temperature temperature temperature, but turned out to be less than reliable. Accuracy did not improve until physicist Max Plancka (1858-1947)He speculated around the turn of the century that radiation was not emitted in a continuous wave across the spectrum, as it happened broadly. Instead, he found that he was emitted in the whole issue of a multiple of 6,625 x 10-34 joule -sec - now referred to as "Planck's constant" - which must be revised by the measurement technique. Two values ​​are required because certain properties such as reflectivity, texture and the sensitivity of the wavelength can reduce accuracy.

When deducting the infrared reading of the moon temperature, a simplified example would use a telescope connected to an infrared detector that converts infrared radiation into electric current or voltage. As two different infrared filtering filters are placed above the lens, the detector registers two different values. One reading is then divided into the other and the number that corresponds to the results corresponds to the temperature that can be found in the existing tables of values ​​for the planck equation. Is tRemaining that when trying to determine the temperature of a large, distant body like the moon, it is necessary to ensure that its entire image fills the area of ​​the infrared detector sensor so that the cold emptiness of space does not affect reading.