Laser light scattering
Particle size analysis via laser scattering (HELOS)
For the determination of particle or drop size distributions a measuring device (SYMPATEC; Helos Vario KF Magic) based on the principle of laser scattered light measurement is available. This enables measurements of particle sizes from the submicrometer range to the millimeter range. In addition to classical laboratory measurements of various powder samples (dry or wet disperse systems), there exists a lot of experience in adapting this measuring technique for process-related conditions (see Figure).
Inline measurement of dust- and droplet-aerosol size distributions in process gas streams of flue gas scrubbers