Acoustical particle counter

An acoustical particle counter for counting and sizing fog droplets has been evaluated by Singh and Reist.161 Fog droplets, mostly in the size range of 5-30 pm, were measured by the acoustical particle counter as well as an optical and an electron microscope for comparison. The mean droplet diameters estimated from the acoustical particle counter were in agreement with the microscope values. A Rich 100 condensation nuclei monitor was also operated simultaneously during the fog droplet counting to monitor condensation nuclei counts. 

G. Langer, An Acoustic Particle Counter Preliminary Results , J. Colloid Sci., 20(1965) 602-609. 

R. F. Karuhn, The Development of a New Acoustic Particle Counter for Particle Size Analysis , in Proceedings of the Conference on Powders, IIT Research Institute, September 1974 proceedings published by IITRl. 10 West 35th St., Chio o, Illinois. 

Acoustic counter—has been used primarily to count ice crystals as a sensor on ice nuclei counter 5 100 1/L Acoustic pulse firom particle transit ... 

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