Accession Number : ADA121698


Title :   The Development of a High-Power, Low-Frequency Underwater Acoustic Source for Use in a Deep-Towed Geophysical Array Section


Descriptive Note : Final rept.


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Young, A M ; Tims, A C ; Henriquez, T A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a121698.pdf


Report Date : 15 Nov 1982


Pagination or Media Count : 23


Abstract : A high-power, low-frequency acoustic source in the form of a Helmholtz resonator, has been developed for use in the deep ocean in a geophysical application. The successful development of the transducer was accomplished through the use of equivalent circuit analysis and the construction/evaluation of a scale model. The transducer has been evaluated and performed well in the 250 to 500-Hz frequency range in both a shallow-water acoustic measurements facility and in the ocean to depths of over 2000 m.


Descriptors :   *TOWED ARRAYS , *ACOUSTIC ARRAYS , SHALLOW WATER , UNDERWATER ACOUSTICS , DEEP WATER , DEEP OCEANS , CAVITY RESONATORS , UNDERWATER SOUND SIGNALS , SUPERLOW FREQUENCY , ULTRALOW FREQUENCY


Subject Categories : Acoustic Detection and Detectors
      Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE