Turbidity sensor for determination of concentration, ash presence and particle diameter of sediment suspensions
; Prats, S.
Pinto, J. L.
; Keizer, J. J.
Turbidity sensor for determination of concentration, ash presence and particle diameter of sediment suspensions, Proc Optical Fiber Sensors Conf., Ottawa, Canada, Vol. Proc. of Spie - 7757, pp. 775356 1 - 775356 4, May, 2011.
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The present work addresses the need for low-cost turbidity sensors felt in the context of an ongoing research project on enhanced soil erosion following wildfire in Portugal. To this end, a system based on plastic optical fibre was developed and tested, including against a commercially-available system. The performance of the sensor was tested using artificially-created samples with a wide range of concentration of three types of very distinct materials, six particle size classes of ashes and real runoff samples collected at the slope and catchment scale in a recently burned area.