Underwater light scattering sensor

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

250574, 250575, 356338, 356340, 356342, G01N 2149

Patent

active

053509226

ABSTRACT:
An underwater light scattering sensor includes a light source, light stop and a light detector mounted on a planar support capable of measuring nearly all suspended particle concentrations found in natural waters, 1 .mu.g/l to 3 g/l. The sensor is designed to measure light scattered at nearly all angles, which includes forward scattering, back scattering, and multiple scattering, from suspended particles in water through a very short light path length. The small and simple design of the sensor allows it to be produced at low cost, permitting its use in both expendable and non-expendable applications for the detection or measurement of suspended particulate concentrations in water. The magnitude of the scattered light measured by the sensor is proportional to the suspended particle concentration in water, provided the nature of the particles does not change.

REFERENCES:
patent: 3586862 (1971-06-01), Topol
patent: 3665201 (1972-05-01), Shea et al.
patent: 3713743 (1973-01-01), Simms
patent: 3714444 (1973-01-01), Carr et al.
patent: 4432645 (1984-02-01), Frungel
patent: 4497577 (1985-02-01), Sato et al.
patent: 4841157 (1989-06-01), Downing, Jr.
patent: 5210595 (1993-05-01), Devore et al.
John P. Downing, R. W. Sternberg and C. R. B. Lister, "New Instrumentation for the Investigation of Sediment Suspension Processes in the Shallow Maring Environment", Marine Geology, 1981, vol. 42, pp. 19-34.
Edward S. Fry and Kenneth J. Voss, "Mueller Matrix Measurements of Ocean Water", SPIE, vol. 489, Ocean Optics VII (1984), pp. 127-129.
Henri Hodara, "Experimental Results of Small Angle Scattering", AGARD Lecture Series No. 61 Optics of the Sea, 1973, pp. 3.4-1 through 3.4-17.
N. G. Jerlov, "Scattering", Marine Optics, Elsevier Scientific Publishing Company, Amsterdam, 1976, pp. 13-22, 33-43.
C. A. Moore, R. Honey, D. Hancock, S. Damron, and R. Hilbers, "Development and Use of Computerized Optical Sea-Truth Instrumentation for Lidex-82", SRI International, 1984, pp. 1-66.
Theodore J. Petzold, "Volume Scattering Functions for Selected Ocean Waters", S10, 1972, pp. 3-13, 15-23, 25-27, 29-31, 33-36 and 77-78.
Richard W. Spinrad, "A Calibration Diagram of Specific Team Attenuation", Journal of Geophysical Research, vol. 91, No. C6, pp. 7761-7764.
Richard W. Spinrad, J. Ronald Zaneveld, and Hasong Pak, "Volume Scattering Function of Suspended Particulate Matter at Near-Forward Angles: A Comparison of Experimental and Theoretical Values", Applied Optics, vol. 17, pp. 1125-1130.
E. M. Thorndike, "A Deep Sea, Photographic Nephelometer", Ocean Engineering, Pergamon Press, 1975, vol. 3, pp. 1-15.
John E. Tyler and Roger Howerton, "Instrumentatioln for Measuring the Forward Scattering Coefficient of Sea Water", 1862, pp. 393-395.
Gunnar Kullenberg, "Scattering of Light by Sargasso Sea Water", Deep-Sea Research, Pergamon Press, 1968, vol. 15, pp. 423-432.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Underwater light scattering sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Underwater light scattering sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Underwater light scattering sensor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1267129

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.