26 October 1994 Multisensor in-situ fiber optic fluorometer
Author Affiliations +
Proceedings Volume 2258, Ocean Optics XII; (1994) https://doi.org/10.1117/12.190088
Event: Ocean Optics XII, 1994, Bergen, Norway
Abstract
A prototype in situ multi-sensor fiber optic fluorometer is described which was designed to acquire long term time-series fluorescence measurements. The multi-sensor system uses dual detectors with four excitation sources, thereby providing for independent measurements at eight sensor locations. Strobe excitation light of wavelength < 500 nm is passed through one of each pair of optical fibers and stimulated chlorophyll fluorescence is carried back to a photomultiplier tube. The excitation and detection hardware are enclosed in a pressure case along with a battery operated 500 kHz data acquisition/storage system. Aspects of the design of the fiber optic sensor are described which were intended to optimize detection of fluorescence signals and minimize interference by ambient light. An illustration of the utility of fiber optics for fluorescence measurements was made by comparing a prototype fiber optic profiling fluorometer with a commercial fluorometer. Time series fluorescence measurements were made with the multi-sensor fluorometer in the Gulf of Mexico, and revealed chlorophyll variability in the benthic boundary layer.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eurico J. D'Sa, Eurico J. D'Sa, Steven E. Lohrenz, Steven E. Lohrenz, Vernon L. Asper, Vernon L. Asper, Roy A. Walters, Roy A. Walters, Michael J. Morris, Michael J. Morris, Catherine Rathbun, Catherine Rathbun, } "Multisensor in-situ fiber optic fluorometer", Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190088; https://doi.org/10.1117/12.190088
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

Field test results on fiber-optic pressure transmitter system
Proceedings of SPIE (December 01 1991)
Sol gel-based fiber optic pH sensor
Proceedings of SPIE (June 16 1997)
High-accuracy fiber-optic shape sensing
Proceedings of SPIE (April 10 2007)
Novel fiber optic sensor for grip testing
Proceedings of SPIE (December 07 2004)
Fiber Optic Radiation Dosimetry
Proceedings of SPIE (February 13 1990)

Back to Top