Optical sensor technology for simultaneous measurement of particle speed and concentration of micro sized particles

Author

Clausen, C. ; Anpan Han ; Kristensen, M. ; Bentien, Anders

Author_Institution

Dept. of Eng., Aarhus Univ., Aarhus, Denmark

fYear

2013

fDate

3-6 Nov. 2013

Firstpage

1

Lastpage

4

Abstract

Experimental characterization of a sensor technology that can measure particle speed and concentration simultaneously in liquids and gases is presented here. The basic sensor principle is based on an optical element that shapes a light beam into well-defined fringes. The technology can be described as a hybrid between Laser Doppler Velocimetry and Laser Particle Counters. The experimental characterization of a lab-scale setup has been performed with polystyrene particles in the range from 750 nm to 20 μm, with various particle speeds. It is shown that particle concentrations can be determined independently from particle speeds and is a key advantage compared to normal Laser Particle Counters.

Keywords

Doppler measurement; chemical variables measurement; counters; laser velocimetry; optical polymers; optical sensors; velocity measurement; laser Doppler velocimetry; laser particle counter; microsized particle concentration measurement; optical element; optical sensor technology; particle speed measurement; polystyrene particle; wavelength 750 nm to 20 mum; Atmospheric measurements; Biomedical optical imaging; Laser beams; Measurement by laser beam; Optical sensors; Optical variables measurement; Particle measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

SENSORS, 2013 IEEE

Conference_Location

Baltimore, MD

ISSN

1930-0395

Type

conf

DOI

10.1109/ICSENS.2013.6688170

Filename

6688170