[Discussion on Far Infrared] About the terminology of far infrared rays
Introduction to commonly seen terms in literature on far infrared rays!
AMK Co., Ltd. is a company that handles industrial far-infrared heaters, heating devices, and drying equipment. Here are some commonly seen terms in the literature on far-infrared radiation. 【Terms】 ■Radiant Energy J - Energy is evaluated based on its magnitude per unit time, represented by the symbol Qe. ■Radiant Flux W - Since far-infrared radiation is electromagnetic waves, it refers to the radiant energy within a unit time. *Practically, it is often quantified by the following radiant emittance or radiant intensity. ■Radiant Emittance W/Cm² - The value obtained by dividing the radiant flux emitted from a small surface by its area (the power density of electromagnetic waves), represented by the symbol Me. ■Radiant Intensity W/st - The value obtained by dividing the radiant flux emitted from a point source in a certain direction into a small solid angle by that solid angle (watts per steradian), represented by the symbol Ie. ■Radiant Luminance W/st·m² - The value obtained by dividing the radiant intensity from a small surface of the radiation source in a certain direction by the area of the orthogonal projection in that direction, represented by the symbol Le. ■Radiant Irradiance W/m² - The value obtained by dividing the radiant flux incident on a small surface by the area of that surface, represented by the symbol Ee. *Currently, there are no devices that can measure it as simply as light. *For more details, please refer to the PDF materials or feel free to contact us.
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