Accession Number : ADA020054

Title :   Solid-State Digital In-Situ Acoustic Data Acquisition.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Craig,David Michael

Report Date : DEC 1975

Pagination or Media Count : 101

Abstract : The problems of acoustic environmental data recording are studied to develop an alternative to conventional magnetic-tape digital storage for in situ recording instruments. Various physical data transducers are analyzed to determine which types are best suited for portable solid-state environmental recorders, and a discussion of information processing concentrates on the problems of high-density versus low-density digital data storage and on methods for effecting large-scale data reductions. Recent advances in integrated-circuit electronics are evaluated in terms of suitability for use in instrumentation requiring both large-scale memory capacity and low power consumption. Results of the research include functional block diagrams of an ambient sea-noise recorder and a shipping-container impact recorder. (Author)

Descriptors :   *Digital recording systems, *Acoustic recording systems, Acoustic data, Ambient noise, Underwater sound, Solid state electronics, Impact shock, Shipping containers, Monitoring, Theses

Subject Categories : Recording and Playback Devices
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE