The UV illuminance meter measures the radiation intensity of ultraviolet rays, and is used for the measurement of ultraviolet radiation in the fields of photochemistry, polymer material aging, flaw detection, ultraviolet light source, plant cultivation, and large-scale integrated circuit lithography.
UV illuminance meter is also called UV radiatIon Meter, UV intensity meter, etc. Although it is called an illuminance meter, it has nothing to do with illuminance. Illuminance studies the light that the human eye can see, that is, visible light, while the ultraviolet illuminance meter measures ultraviolet light, which is invisible to the human eye, so it has nothing to do with radiation. related to illuminance.
English name of irradiance: irradiance. Irradiance, also known as radiant flux density (flux density), is the integral of radiance to solid angle. The radiant power can be obtained by area integration of the irradiance. Definition 1: Radiant energy projected onto a unit area per unit time. Definition 2: The radiant energy received by an object in unit time and unit surface. The unit is W/m2. Definition 3: The radiant flux irradiated on the infinitely small bin containing the point divided by the area of the bin. Definition 4: Radiant energy projected onto a unit area per unit time. Irradiance (Ee, E) is a physical parameter that is the radiation energy received per unit area on a specified surface. Unit: Watt/square meter. If it is the radiant flux density projected onto a flat surface, it is called irradiance, represented by the symbol E, which refers to the radiant energy per unit time and unit area reaching a surface plane; if it is emitted from a surface plane The radiant flux density is called the radiation output, or the radiation output for short, expressed by the symbol M, which refers to the radiant energy emitted from the unit area per unit time. The units of E and M are both watts/square meter. Since ultraviolet rays are weak under most conditions, for example, ultraviolet rays in sunlight are about 4%, so the unit is usually μW/cm2.
The measurement wavelength of the ultraviolet light meter is divided into UVA (320nm-380nm), UVB (280nm-320nm), UVC (200nm-280nm), and some high-end products can detect a wide range of bands, such as the German UV-150 energy meter, the wavelength range can be Up to 250nm-410nm; the wavelength range of Linshang Technology LS123 ultraviolet radiatIon Meter is 260nm-380nm, which is widely used in the test of the barrier performance of building films, solar films, heat insulating glass, etc. against ultraviolet rays; the radiation of ultraviolet sources (the sun, ultraviolet lamps, etc.) Intensity measurement; UV disinfection, curing; meteorological and agricultural production fields.
