Know Your Emissivity

Posted by Martin Robinson on 4/15/15 11:28 AM

What is Emissivity?
The material emissivity (written as “?” or “e”) is the relative power of its surface to emit heat by radiation. Materials are assigned an emissivity value between 0 and 1.0. Emissivity is a measure of a material’s ability to emit infrared energy. The emissivity of a surface is the ratio of the energy radiated from it to that from a blackbody at the same temperature, the same wavelength and under the same viewing conditions.

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Topics: Education, Electrical Maintenance, Thermography, Electrical Inspection, Energized Electrical Maintenance, Emissivity

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