Research conducted on depthmeter for piloting ships by means of frequency modulation principle; it has been observed that depth was exactly in conformity with measurement shown by depth indicator irrespective of character of bottom, condition of river bed, nature of water, or surge caused by ship engaged in taking measurements.


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    Title :

    Direct-Reading depthmeter for piloting ships in rivers


    Additional title:

    Electrotech J (Japan)


    Contributors:
    Matsuo, S. (author)

    Published in:

    Publication date :

    1938


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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