Accession Number : AD0845864

Title :   An Anchor Release System.

Descriptive Note : Technical memo.,

Corporate Author : SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s) : Ziegenbein, J.

Report Date : 15 DEC 1968

Pagination or Media Count : 17

Abstract : A system for releasing (sub-surface) moored buoys from their anchor is described. It consists of two completely independent sub-systems that work in parallel, in case one fails. One is actuated by an acoustic command from the surface ship and the other by a pre-set timer. The acoustic release system uses a signal consisting of a 3.5 kHz carrier frequency pulse-modulated with a low frequency (100-200 Hz). This system has been used in the field on many occasions and has proved to be reliable. (Author)

Descriptors :   *MOORING BUOYS), (*ACOUSTIC EQUIPMENT, RELEASE MECHANISMS), (*RELEASE MECHANISMS, SHIPBOARD, UNDERWATER, SIGNAL GENERATORS, CODING, CONTROL SYSTEMS, ANCHORS(MARINE), RELIABILITY, TIMING DEVICES, EXPLOSIVES INITIATORS, CIRCUITS, TRANSDUCERS, SENSITIVITY, ELECTROACOUSTIC TRANSDUCERS, ACOUSTIC SIGNALS, UNDERWATER EQUIPMENT.

Subject Categories : Marine Engineering
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE