American Society of Civil Engineers


A Digital Floc Camera for Nonintrusive Measurement of Floc Parameters


by Remya G. Kumar, (Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Houston, Houston, TX E-mail: rgkumar@uh.edu), Ariel Ruiz, (Postdoctoral Fellow, Department of Electrical Engineering, University of Houston, Houston, TX E-mail: ariel.ruiz@mail.uh.edu), and Kyle B. Strom, (Assistant Professor, Department of Civil and Environmental Engineering, University of Houston, Houston, TX E-mail: kbstrom@uh.edu)
Section: Large River Habitats, pp. 3267-3272, (doi:  http://dx.doi.org/10.1061/41036(342)330)

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Document type: Conference Proceeding Paper
Part of: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract: This paper discusses the use of a digital camera setup developed for the in-situ measurement of floc size distributions as a function of time in a turbulent field. The camera assembly consists of a CCD camera fitted with a 2X objective lens coupled with an LED spotlight and a strobe controller. The setup allows for the measurement of a wide spectrum of particle sizes, ranging in size from 5 micron to a few millimeters, in a single image. The system was tested for accuracy using suspensions of known particle sizes (Coulter Counter standard particles) and compared to. The camera system is then used to measure floc particle size distributions of kaolin clay in fresh and salt water suspensions.


ASCE Subject Headings:
Cameras
Measurement
Parameters
Particle distribution
Turbulence