WSB-3Y Precision Desktop Fluorescence Whiteness Meter

Overview

The microcomputer based fluorescence whiteness meter consists of a light source, optical system, detection system, microcomputer data processing and display system, etc. The overall whiteness of the material isR457.R457=Blue light whitenessr457+荧光增白度F。

The spectral diffuse reflectance shooting ratio is defined as1The ideal surface whiteness is100The absolute whiteness of a black surface with zero diffuse reflectance is0.

This instrument is completely in accordance with the International Commission on Illumination（CIE）Designed according to specified standard light sources and lighting conditions, rigorously tested and debugged, and implemented in accordance with enterprise standardsQ/TDKY02-2004, applicable toGB2913TheGB5950TheGB8940.1TheGB12097TheGB13025.2Waiting for national standards.

working principle

The instrument utilizes the principle of photoelectric conversion and adopts an analog-to-digital conversion circuit to measure the radiance energy value of the white reflection on the surface of the sample. After signal amplificationA/DConvert, process data, and then display the corresponding whiteness value.

purpose

This instrument can be widely used for measuring the whiteness of objects such as textile printing and dyeing, paint and coatings, chemical building materials, paper and cardboard, plastic products, white cement, ceramics, enamel, porcelain clay, talcum powder, starch, flour, salt, detergents, cosmetics, etc. The opacity of paper can be calculated through measurement.

1Measure the blue light of the sample457nmDiffuse reflection factor（r457）,calledand“Blue light whitenessr457”

2To determine whether the sample contains fluorescent whitening agents and to measure the fluorescence whiteness value generated by fluorescence emission, it is calledand“荧光增白度F”orand“Whitening degreeF”.

Measurement range:0～199

Measurement content: Blue light whitenessr457荧光增白度F

Light source:LEDlight source

Testing conditions: Compliant withGB/T3978regulation45/0

monitor:LCDliquid crystal display

Measurement aperture: ￠30

Indication:0.1

Measurement repeatability:0.2

Indication error:& the; ± 1

Usage environment: Temperature(5℃～35℃); Humidity(≤85%RH)

Transportation and storage environment: temperature(-20℃～50℃); Humidity(≤90%RH)

Features

1Measuring the substance to be tested at oncer457Numerical value and fluorescence whitening degreeFNumerical value. This method is easy to use and the measurement values are accurate.

2The operation interface is simple, and according to the workflow in the appendix, you can directly master the operation method.

3Adopting a large screen with high definitionLCDLCD display provides comfortable reading and is not affected by natural light.

4By using low drift high-precision integrated circuits and high-efficiency long-life light sources, the instrument can effectively ensure long-term stable operation.

5Reasonable and concise optical path design can effectively ensure the correctness and repeatability of measurement values.

6Simple operation can accurately measure the opacity of paper.

7Using a national calibration whiteboard to transmit standard values ensures accurate and reliable measurement.

Precautions

This instrument is a measuring device and must not be disassembled at will. Please read the instructions carefully before use.

1The working environment should be free of corrosive gases and vibration sources.

2There should be no strong light sources or strong magnetic field interference around.

3The surrounding air should be dry and free of floating objects such as dust.

4After the instrument is stopped for a long time, the preheating time should be correspondingly extended to improve stability.

5The power supply voltage must meet the working conditions.

6Do not drop the sample into the measuring cylinder to avoid being unable to zero.

7Do not touch optical components directly with your hands to avoid affecting their spectral characteristics.

8Do not contaminate the black tube and work whiteboard to avoid affecting accuracy.