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gloss meter basic knowledge
1.gloss meter brief introduction
gloss meter is also named gloss gauge or mirror gloss meter. it is mainly used for paint, plastic, print, metal, ceramic, building material, leather and other industries which need measure gloss. gloss meter can be separated into two type single angle and triple angles (triple angles gloss meter is called multi-angles gloss meter). our model number is cs-300 (single angle) and cs-380 (triple angles).

2. gloss meter working theory
as shown in the figure, the measuring head of the instrument consists of a transmitter and a receiver, which consists of an led light source and lenses, which produce a desired incident beam. the receiver is composed by a lens and a photosensitive element for receiving a cone beam reflected from the surface of the sample.

mirror gloss is the relative measurement for the mirror gloss. the reference standard is a black glass with a refractive index np = 1.567, assuming that the plane is subjected to mirror reflection of the natural beam by the plane in the ideal polished state, and the gloss value at this time is defined as 100.0 gloss units. gloss board is pided into high, medium and low three according to the gloss value. the high gloss board is made by black optical glass or other material. the medium and low gloss plates are made by glazed ceramic or black optical glass. the gloss meter measures the gloss of the sample according to light reflection principle. that is, the sample is irradiated with a predetermined incident angle and a prescribed light beam to obtain reflected light in the direction of the mirror reflection angle.

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