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  • 1
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2011-08-17
    Description: Laboratory and airborne experiments have proven the feasibility and demonstrated the techniques of an airborne pulsed laser system for rapidly mapping coastal water bathymetry. Water depths of 10 plus or minus 0.25 m were recorded in waters having an effective attenuation coefficient of 0.175 m. A 2-MW peak power Nd:YAG pulsed laser was flown at an altitude of 600 m. An advanced system, incorporating a mirror scanner, a high pulsed rate laser, and a good signal processor, could survey coastal zones at the rate of several square miles per hour.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 16; Jan. 197
    Format: text
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  • 2
    Publication Date: 2019-06-27
    Description: Multichannel photoionization chamber for measuring absorption, photoionization yield, and coefficients of gases
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: application/pdf
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  • 3
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    Unknown
    In:  Other Sources
    Publication Date: 2019-07-13
    Description: A description is given of a program concerned with the development and the evaluation of techniques for the measurement of water depth with a pulsed laser. Airborne laser bathymetry makes use of a light pulse which is sent downward. Information concerning the water depth is provided by the time interval observed between the arrival of the light pulse reflected from the water surface and the arrival of the pulse coming from the ocean floor. Details concerning the instrumentation used for the developed measurement method are discussed. Attention is also given to field experiments and aspects of system performance.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Electro-optical Systems Design Conference and International Laser Exposition; Nov 11, 1975 - Nov 13, 1975; Anaheim, CA
    Format: text
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  • 4
    Publication Date: 2019-07-13
    Description: The successful operation of an airborne laser fluorosensor system is reported that makes it possible to detect and map surface oil, either of natural-seepage or spill origin, on large bodies of water. Preliminary results indicate that the sensitivity of the instrument exceeds that of conventional passive remote sensors currently available for oil spill detection.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Joint Conference on Sensing of Environmental Pollutants; Dec 10, 1973 - Dec 12, 1973; Washington, DC
    Format: text
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