Optical Sensor Technology For Simultaneous Measurement Of Particle Speed And Concentration Of Micro Sized Particles
2013 IEEE SENSORS（2013）
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 mu m, 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.
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Key words
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,
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