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  • Galloping-Instabilität  (1)
  • LASERS AND MASERS  (1)
  • 1995-1999
  • 1975-1979  (2)
  • 1
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    Unknown
    A remote sensing laser fluorometer (1975)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: A sensor is reported which is able to identify certain specific substances in water by means of their fluorescence spectra. In particular, the sensor detects oil, ligninsulfonates and chlorophyll. The device is able to measure the fluorescence spectra of water at ranges up to 75 m and to detect oil spills on water at altitudes up to 300 m. Blue light from a laser is used to excite the fluorescence of the target. Any light from the ambient background illumination, from the reflected laser light or from the induced fluorescence is gathered by a small telescope focused on the target. Optical filters are used to block the reflected laser light and to select the wavelengths of interest in the fluorescence spectrum of the target. The remaining light is detected with a photomultiplier tube. The amplitude of the laser induced fluorescence in the wavelength interval selected by the optical filters is displayed on a meter or strip chart recorder.
    Keywords: LASERS AND MASERS
    Type: NASA. Wallops Station The Use of Lasers for Hydrographic studies; p 173-196
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
    Electronic Resource
    Electronic Resource
    Schwingungsanregungen in quer angeströmten RohrbündelnVortrag auf dem Jahrestreffen der Verfahrens-Ingenieure, 30. Sept. bis 2. Okt. 1975 in Karlsruhe. (1976)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 48 (1976), S. 257-257 
    Details
    ISSN: 0009-286X
    Keywords: Schwingungsanregung ; Rohrbündel ; Wärmeaustauscher ; Wirbelablösungen ; aeroelastische Koppelung ; Galloping-Instabilität ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330480324
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    Paper (German National Licenses)
    Fulltext
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