Continuous Measurement of Degree of Mixing in Power Mixer by Optical Method
Munetaka Sato, Kei Miyanami · Institutional Repositories DataBase (IRDB) · 1988
A new system has been developed to measure continuously the ftow characteristics of solid particles and the degree of mixing in powder mixers.Modulated light from a 1ight-emitting-diode is conducted onto a mixture of colored particles through a probe consisting of a pair of optical fibers, and the intensity of the reflected light from the surface of the mixture is measured continuously by a high-sensitive photometer.Five sets of the probes are installed in separate positions of a mixer vessei.The sigma1 from the five photometers are processed by an analog-todigita1 converter anda microcomputer system.The concentration of the key component in the mixture and the degree of mixing at every moment are calculated and displayed on the video screen of the computer system.'