emissivity measurement

См. также в других словарях:

• Emissivity — The emissivity of a material (usually written ε or e) is the relative ability of its surface to emit energy by radiation. It is the ratio of energy radiated by a particular material to energy radiated by a black body at the same temperature. A… …   Wikipedia

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• Thermography — Infrared Thermography, thermal imaging, or thermal video, is a type of infrared imaging science. Thermographic cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 900 ndash;14,000 nanometers or 0.9 ndash;14 µm) …   Wikipedia

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• Pyrometry — is the non contact measurement of the temperature of an object, by measuring its self emission and emissivity. An apparatus that measures the temperature by means of pyrometry is called a pyrometer or optical pyrometer.Emissivity is a measure of… …   Wikipedia

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