An acoustic system for releasing submerged oceanographic buoys from their anchors on demand using a 1.4 kc compact source

dc.contributor.author	Frassetto, Roberto
dc.contributor.author	Pesaresi, Riccardo
dc.date.accessioned	2018-10-11T14:07:03Z
dc.date.available	2018-10-11T14:07:03Z
dc.date.issued	1963/12
dc.identifier	2330
dc.identifier.govdoc	TR-19
dc.identifier.uri	http://hdl.handle.net/20.500.12489/323
dc.description.abstract	The paper describes an anchor-releasing device for the recovery of moored oceanographic equipment. The releaser is actuated by a remote acoustic signal emitted by a small and powerful 1400 cps sound source rather than by unsafe explosive charges. The acoustic power output of the source can be regulated according to the range of operation, up to a maximum of 400 watts. The submerged unit is self-contained, remains active for several months and is recovered together with the oceanographic equipment. Special steps were taken to prevent false triggering of the releaser either by high or low level noise.
dc.format	28 p. : ill.
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.relation.ispartofseries	AD0808757
dc.subject	Oceanographic equipment
dc.subject	Buoys
dc.subject	Launch and recovery systems
dc.subject	Moorings
dc.subject	Moored sensor arrays
dc.subject	Sound sources
dc.subject	Risers (subsea to sea surface)
dc.title	An acoustic system for releasing submerged oceanographic buoys from their anchors on demand using a 1.4 kc compact source
dc.type	Scientific Technical reports (TR)