Assessment of water quality based on multiparameter fiber optic probe

Abstract A multiparameter fiber optic probe was designed to test drinking water. The probe consists of pH, temperature and calcium ions sensors, which are based on the absorbance changes of an appropriate reagent. The sensors are combined in a form of the head made from Teflon. Light emitting diodes (LEDs) are used as light sources and they are matched to maximum absorbance of the reagents. A measurement system is governed by a special software developed in LabWindows.