Accession Number:

AD0689368

Title:

INVESTIGATION OF THE ELECTRICAL AND MECHANICAL INTERACTIONS OF A TOWED SEISMIC ARRAY USED FOR SUB-BOTTOM SEDIMENT PROFILING OF THE OCEAN FLOOR,

Descriptive Note:

Corporate Author:

CATHOLIC UNIV OF AMERICA WASHINGTON D C INST OF OCEAN SCIENCE AND ENGINEERING

Report Date:

1969-06-01

Pagination or Media Count:

47.0

Abstract:

The construction of and experimentation with two seismic hydrophone arrays differing in their electrical and mechanical configurations is described. The first array was a duplicate of one built and used by C. Windisch of Lamont Geological Observatory. The second was similar in construction but included several design differences which were based on a detailed analysis of the noise detected by a towed hydrophone array. Both theoretical and at-sea experimental comparisons of the operation of the two arrays were made to determine what effect the different electro-mechanical parameters had on their signal-to-noise ratios. Results show that the design features of the second array, including the use of low noise electrical cable, zero drive signal conditioning system, and nylon towing line, provided signal-to-noise ratio increase of not less than 9 dB over that of the Lamont duplicate array for various towing speeds. Author

Subject Categories:

  • Physical and Dynamic Oceanography
  • Geology, Geochemistry and Mineralogy
  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE