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A New Design of Low-Cost Four-Beam Turbidimeter by Using Optical Fibers

Turbidity is one of most important water-quality parameters; turbidity measurement and removal is as important in water for human use as for industrial-process water. This paper presents a new low cost, small size, and good accuracy turbidimeter based upon the use of optical fibers. The design takes advantage of using optical fibers for light transmission, and consequently, waterproof protection becomes unnecessary, remote measurement is feasible, and high signal-to-noise ratio is obtained, decreasing overall uncertainty