



C84-III reflectance measuring instrument is a special instrument developed for the implementation of international standards and national standards in chemical industries such as coatings, pigments, and inks. It can be used to measure the hiding power of paint films. The instrument fully complies with the international standard ISO3906-1980 (E), national standard GB/T13452.3-92, GB9270-88, GB5211.17-88 requirements for the instrument.
The instrument consists of a probe, a host, a standard board (one black and one black), and a working ceramic board (two black and white boards).
The probe uses 0. Illumination, the principle of diffuse reflection reception. When the reflected light of the sample acts on the surface of the silicon photocell, an electrical signal is input to the DC amplifier for amplification, and the reading is displayed (see the schematic diagram of the optical circuit and the block diagram of the instrument for details).
