The internal structure of the stone with strong gloss is dense, delicate and smooth to the touch, and the particle size is very uniform, which is closely related to the grinding process and polishing process. When people buy stone, they judge the glossiness by naked eyes, and there will be a big deviation, and the use of precision gloss meter will quantify a vague concept, giving people an intuitive choice. The low-gloss stone will become smooth after the modern polishing process, and the gloss will also increase. We can use the gloss meter to detect its slight difference.
Before choosing a gloss meter, you first need to briefly introduce the specific factors that affect the gloss of the stone. We mainly start with the particle size of the stone and the grinding and polishing process. It should be mentioned that most stone materials are natural minerals, the particles are often not uniform, and there is a huge difference in the overall size of the particles. In general, the smaller and more uniform the particles, the higher the gloss, that is, the stronger the ability to refract light. When we look at the stone from different directions, the visual gloss is also different, which is related to the structure of the human eye.
LS191 gloss meter parameters:
Measuring angle: 60 °
Measuring range: 0-200GU
Repeatability: 0-100GU: ± 0.2; 100-200GU: ± 0.2% reading
Reproducibility: 0-100GU: ± 0.5; 100-200GU: ± 0.5% reading
Indication error: 0-100GU: ± 1.5; 100-200GU: ± 1.5% of reading
Zero error: 0.1GU
Measured light spot: 9mm * 15mm
Measured item size: 28mm (length) * 14mm (width)
Working temperature: 10 ～ 40
Storage temperature: -10 ~ 60