Accession Number : ADD010992

Title :   Nighttime/Daytime Diffuse Attenuation Coefficient Device for Seawater.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Mooradian,G C

Report Date : 22 Nov 1983

Pagination or Media Count : 6

Abstract : An apparatus and method for measuring the diffuse absorption coefficient of seawater provides reliable readings. An emitter of pulsed light is disposed below the water's surface and an irradiance receiver is located between the pulsed light emitter and the water's surface. Because the irradiance receiver is facing downward, is separated from the light emitter a given amount and may be disposed a suitable distance below the water's surface, reliable day and nighttime readings are obtained that are unaffected by atmospheric or surface conditions.

Descriptors :   *Patents, *Light transmission, Sea water, Oceans, Light, Diffusion, Attenuation, Measuring instruments, Underwater equipment

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE