Introduction to methods for detecting the whiteness of objects

WSB-2 whiteness detector is used to determine the whiteness of objects, it is widely used in papermaking, textile, printing and dyeing, plastics, ceramics, enamel, grain, paint, chemical, salt and other production and commodity inspection departments
that need to determine the whiteness of special bodies.

The instrument can also determine the transparency, opacity, light scattering coefficient and absorption coefficient of
the paper.

Standard illuminators and illumination observation conditions
.

Simulates D65 illuminator illumination
.

The geometric conditions (ISO2469) are observed by d/o illumination, the diameter of the diffuse ball is φ150mm, and the light absorber is provided, which eliminates the influence of the specimen reflected light on
the specimen.

R457 Spectral power distribution of the whiteness optical system with a peak wavelength of 457 nm and a half-height width of 44 nm; The RY optical system complies with GB3979-83: Method for
measuring the color of objects.

The arithmetic mean
of a series of assay results can be determined multiple times and given.

With power-off protection, zeroing, alignment and standard values and other data product uses: mainly suitable for whiteness measurement of objects or powders with non-colored surfaces, it is possible to accurately obtain whiteness values
consistent with visual sensitivity.

For objects treated with fluorescent brighteners, the whiteness value after fluorescence enhancement can be quantitatively reflected
.

It can be widely used in textile printing and dyeing, paints and coatings, chemical building materials, paper and cardboard, plastic products, white cement, ceramics, enamel, talc, starch, flour, salt, detergents, cosmetics and other substances in whiteness measurement
.

Product features: 1.
Imported original components, high efficiency, low loss switching power supply, good reliability 2.
Reasonable, concise optical path design, using a modified color filter system, can quantitatively reflect the whiteness value after fluorescence whitening 3.
Reliable active platform design, can effectively avoid the phenomenon of light leakage at the measuring orifice 4.
Simple operation, can accurately measure the opacity of the paper 5.
The use of national calibration whiteboard to transmit the standard value, the measurement is accurate and reliable Technical indicators: 1.
Zero point drift: ≤0.
12.
Indication drift: ≤0.
13.
Indication error: ≤0.
54.
Repeatability error: ≤0.
15.
Specular reflection error: ≤0.
16.
Specimen size: test plane is not less than φ30mm or φ19mm, specimen thickness does not exceed 40mm7.
Working environment: temperature 0~40°C, relative humidity does not exceed 85% Standard configuration: host + standard whiteboard + comparison board + blackboard + powder bearer Jinan Jingji Test Instrument Co.
, Ltd.
Label: whiteness detector