Interpretation of relevant principles of portable whiteness meter

The portable whiteness meter is mainly suitable for measuring the whiteness of flat objects or non-colored powders, and can accurately obtain the whiteness value consistent with visual sensitivity.

Accurate measurement of paper opacity.

Can be widely used in textile printing and dyeing, paint coating, chemical building materials, paper and cardboard, plastic products, white cement , ceramics, enamel, talcum powder, starch, flour, salt , detergent, cosmetics Measurement of the whiteness of other substances.

The whiteness meter is used to measure the blue light whiteness of the surface of the object to control the whiteness of the product surface. The measurement results are displayed digitally and can also be processed and printed by a single-chip computer.

Easy to use and high accuracy of mesafe.

Its photoelectric principle is that the tungsten-halogen lamp emits light, which is composed of blue-violet light through a condenser lens and a color filter, and enters the sphere of integration. On the sample;

The light reflected from the sample is received by the silicon photocell and converted into an electrical signal.

There is another silicon photocell to receive the basic signal in the sphere, and the two electric signals are respectively amplified and mixed to obtain the measurement results.

Principle:

The whiteness meter uses the photometric integrating sphere to measure the diffuse reflectance of the spectrum.

Its photoelectric principle is that the tungsten-halogen lamp emits light, which is composed of blue-violet light through a condenser lens and a color filter, and enters intos the integrating sphere. On the sample;

The light reflected from the sample is received by the silicon photocell and converted into an electrical signal. Another silicon photoelectric cell receives the base signal in the sphere, and the two electrical signals are respectively amplified and mixed to obtain the measurement result.

Tag: Portable Whiteness Meter