26 October 1994 Scattering error correction of reflecting-tube absorption meters
Author Affiliations +
Proceedings Volume 2258, Ocean Optics XII; (1994) https://doi.org/10.1117/12.190095
Event: Ocean Optics XII, 1994, Bergen, Norway
Abstract
In this paper we examine correction methods for the scattering error of reflecting tube absorption meters and spectrophotometers. We model the scattering error of reflecting tube absorption meters for different tube parameters and different inherent optical properties. We show that the only reasonable correction method for an absorption meter without attenuation measurements or a spectrophotometer is the method in which the measured absorption at a wavelength in the near infrared is subtracted. A better correction is obtained if attenuation is measured simultaneously and the absorption at the reference wavelength is multiplied by the ratio of the measured scattering at the measurement wavelength divided by the measured scattering coefficient at the reference wavelength. This is the proportional method. We showed that the important geometrical parameters of the reflecting tube can be obtained by a comparison of measurements and models of polystyrene beads. Finally, we examine the improvements that could be obtained if a direct scattering measurement were made simultaneously with the absorption and attenuation measurements.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Ronald V. Zaneveld, James C. Kitchen, Casey C. Moore, "Scattering error correction of reflecting-tube absorption meters", Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190095; https://doi.org/10.1117/12.190095
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Introduction To Ocean Optics
Proceedings of SPIE (September 27 1984)
Reflective-tube absorption meter
Proceedings of SPIE (September 01 1990)
Analysis of in-situ spectral absorption meter data
Proceedings of SPIE (December 31 1992)

Back to Top