What are the characteristics of portable whiteness meters

The whiteness meter uses the integrating sphere to achieve the measurement of spectral diffuse reflectivity, and its optical principle is to use the blue light emitted by the semiconductor light source to directly enter the integrating sphere, and the blue light is diffusely reflected in the inner wall of the integrating sphere, and irradiated on the sample at the test port, and the spectrum reflected by the sample surface is received by the silicon photocell cell after being received by the condenser, the light bar, and the color filter group into an electrical signal; Another silicon photocell receives the base signal
within the sphere.

The two electrical signals are amplified separately, and after being processed by the microcontroller, the system functions of automatic zero correction, working whiteboard calibration, and sample testing are realized, and the user can use the instrument very easily to conduct whiteness tests
of various samples.

Portable whiteness meter instrument features: LCD display, clearer reading, not affected
by natural light.

Simple operation and high cost performance
.

The positioning structure and its high-precision optical path system ensure the correctness and repeatability of
the measured values.

The use of low drift, high precision, good stability of the circuit system, and long life light source, can ensure that the instrument for a long time stable work
.

Calibration whiteboards are used to transmit corrective values to make measurements more accurate
.

The instrument is equipped with a low voltage indicator function that prompts the user to replace the battery to ensure accurate measurements
.