Optical Fibre Turbidimeter
Feng Liuying, Fan Min (Nanjing Institute of Integrated Circuit, Nanjing, 210001)
This paper introduces an optical fibre turbidimeter which is able to measure quickly and accurately the impurity content and its changes in water. The principles, circuits and the main parametes of the turbidimeter are described. The sensitivity of the turbidimeter is 0.5 ppm.