New instrument for measuring sunlight extinction in water columns

Author

Ibáñez, J. ; del Rio, J. González ; Romero, I. ; Laguarda, N. ; Garcia-Breijo, E. ; Gil, L.

Author_Institution

Inst. Reconocimiento Mol. y Desarrollo Tecnol., Univ. Politucnica Valencia, Valencia, Spain

fYear

2010

fDate

4-7 July 2010

Firstpage

478

Lastpage

481

Abstract

In this paper we propose a method to obtain the water sunlight extinction by using commercial photodiodes whose sensitive band is not monochromatic. This procedure is based on the use of absorbance data provided by various authors for each wavelength and their weightings for spectral sensitivity of each photodiode. The ultimate goal is to be able to use this type of photodiodes in the “in situ” extinction coefficient measure and the effect that the absorption due to the water itself has on the above-mentioned coefficient, differentiating it from absorption by other components, dissolved or dispersed, in the water column.

Keywords

absorption coefficients; extinction coefficients; photodiodes; sunlight; water quality; in situ extinction coefficient measurement; monochromatic; photodiodes; spectral sensitivity; water columns; water sunlight extinction measurement; Absorption; Extinction coefficients; Instruments; Optical attenuators; Photodiodes; Sensitivity; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2010 IEEE International Symposium on

Conference_Location

Bari

Print_ISBN

978-1-4244-6390-9

Type

conf

DOI

10.1109/ISIE.2010.5637676

Filename

5637676