Title :
An in situ optical beam attenuance meter
Author_Institution :
Bedford Institute of Oceanography, Dartmouth, Nova Scotia, Canada
Abstract :
The design, construction, and use of an oceanographic instrument which measures in situ the optical beam attenuance coefficient of sea water in the range of 0.1 to 4.5 m-1 for any one of six defined spectral bands is described. The instrument is readily calibrated using pure water and has been designed to maintain its calibration over a period of several weeks despite lamp changing and the shocks received during normal shipboard handling. Data from some field trials are presented, indicating the potential of the instrument.
Keywords :
oceanographic equipment; seawater; underwater optics; oceanographic instrument; optical beam attenuance coefficient; optical beam attenuance meter; pure water; sea water; spectral bands; Calibration; Instruments; Lamps; Lenses; Light scattering; Optical amplifiers; Optical attenuators; Optical collimators; Optical filters; Optical scattering;
Conference_Titel :
Engineering in the Ocean Environment, Ocean '74 - IEEE International Conference on
Conference_Location :
Halifax
DOI :
10.1109/OCEANS.1974.1161419
