Introduction: HP-BD48A whiteness colorimeter (also known as whiteness colorimeter, whiteness color meter, whiteness colorimeter, colorimeter, whiteness color meter, color difference meter) is widely used in papermaking and printing. , textile printing and dyeing, ceramics, building materials, chemicals, food, salt and other industries, mainly used to determine the whiteness, yellowness, color and color difference of objects, but also can determine the opacity, transparency, light scattering coefficient, light absorption coefficient of paper And ink absorption values. The instrument can measure CIE (1982) whiteness (Ganzi visual whiteness) W10 and color cast value Tw10. ISO whiteness (R457 blue lightness) and Z whiteness (Rz) can be determined. For fluorescent whitened samples, the degree of fluorescence whitening produced by the emission of the fluorescent substance can also be determined. Determine the whiteness WJ of building materials and non-metallic mineral products. It is also possible to measure Hunter Whiteness WH. Features: 1. Determine the color of the object, report the diffuse reflection factors Rx, Ry, Rz, stimulus values X10, Y10, Z10, chromaticity coordinates x10, y10, brightness L*, chromaticity a*, b*, chroma C*ab, Hue angle h*ab, dominant wavelength λd, excitation purity Pe, color difference ΔE*ab, brightness difference ΔL*, chroma difference ΔC*ab, hue difference ΔH*ab, Hunter system L, a, b. 2. The instrument adds the function of measuring the lead core concentration. 3, the instrument adds a printer and uses imported thermal printer core, no need to use ink and ribbon, no noise when working, fast printing speed and so on. 4. This instrument is equipped with standard RS232 interface, which can communicate with microcomputer software. 5. Determination of yellowness YI, opacity OP, light scattering coefficient S, light absorption coefficient A, transparency, ink absorption value. 6, the reference can be physical, but also data. The instrument can store up to ten reference information. 7, the instrument has a memory function. Even if the power is turned off for a long period of time, useful information such as zero adjustment of the memory, calibration, standards, and reference samples will not be lost. 8. Measure the reflected optical density Dy, Dz (lead core concentration). Technical Parameters: 1. Simulate D65 illuminator illumination. Using CIE1964 complementary color system and CIE1976 (L*a*b*) color space color difference formula 2. Observe the geometric conditions using d/o illumination. The diffusing ball has a diameter of 150mm and a measuring hole diameter of 25mm. It is equipped with a light absorber to eliminate the influence of specular reflection of the sample. 3. Measurement repeatability: σ(Y10)<0.1, σ(X10, Y10)<0.001 4. Accuracy: △Y10<1.0, △x10(△y10)<0.01 5, sample size: test plane is not less than Φ30mm, thickness does not exceed 40mm 6, power: AC220V 50Hz 0.3A 7, working environment: temperature 10 ° C ~ 30 ° C, relative humidity does not exceed 85% 8. Dimensions: 364mm × 264mm × 400mm 9, weight: 17kg
Introduction: HP-BD48A whiteness colorimeter (also known as whiteness colorimeter, whiteness color meter, whiteness colorimeter, colorimeter, whiteness color meter, color difference meter) is widely used in papermaking and printing. , textile printing and dyeing, ceramics, building materials, chemicals, food, salt and other industries, mainly used to determine the whiteness, yellowness, color and color difference of objects, but also can determine the opacity, transparency, light scattering coefficient, light absorption coefficient of paper And ink absorption values. The instrument can measure CIE (1982) whiteness (Ganzi visual whiteness) W10 and color cast value Tw10. ISO whiteness (R457 blue lightness) and Z whiteness (Rz) can be determined. For fluorescent whitened samples, the degree of fluorescence whitening produced by the emission of the fluorescent substance can also be determined. Determine the whiteness WJ of building materials and non-metallic mineral products. It is also possible to measure Hunter Whiteness WH.
