Current thermal imagers work by measuring infrared radiation emitted by heated objects. However, the accuracy of such devices depends on the material’s emissivity, which can vary with temperature. The new method eliminates this problem.
A spectroscope measures the emission spectrum of an object and compares it to the spectrum of an ideal blackbody. This allows you to determine the temperature with high accuracy, regardless of the properties of the material.
The new technology can be used in various fields such as medicine, construction, industry and security. It will make it possible to diagnose diseases more accurately, detect heat losses in buildings, detect hidden objects and control technological processes.
Source: Ferra
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