Show simple item record

dc.contributor.advisorMedwin, Herman
dc.contributor.authorDonaldson, William Jay
dc.contributor.authorMacFarlane, Byron Noble
dc.dateDecember 1969
dc.date.accessioned2014-04-01T21:02:08Z
dc.date.available2014-04-01T21:02:08Z
dc.date.issued1969-12
dc.identifier.urihttp://hdl.handle.net/10945/40129
dc.descriptionApproved for public release, distribution unlimiteden_US
dc.description.abstractAn acoustic system was designed to investigate microbubble concentrations and distributions in the ocean. The system consisted of a one-dimensional standing-wave resonator and a reverberation sensor. Concentrations are determined by measurement of the variation in system Q and the change in reverberation level produced by the resonant bubble response. The resonator and the sensor, while functioning independently, both measure bubble concentration as a function of depth and inferred size and thus provide a unique data comparison. The system has been designed to measure bubbles from approximately 700 microns to 30 microns utilizing frequencies from 5 tp 100 kHz at depths to 100 ft. Initial tests utilizing a bubble generator in an anechoic tank have demonstrated the system's capability to measure bubble concentrations.en_US
dc.description.urihttp://archive.org/details/designofnimprove1094540129
dc.format.extent78 p.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.subject.lcshPhysicsen_US
dc.titleDesign of an improved acoustic system for determination of the concentration of microbubbles in the oceanen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentDepartment of Electrical Engineering
dc.contributor.departmentCommittee for Engineering Acoustics
dc.subject.authorResonanten_US
dc.subject.authorMicrobubblesen_US
dc.subject.authorStanding waveen_US
dc.subject.authorReverberationen_US
dc.subject.authorAcousticen_US
dc.description.serviceLieutenant, United States Navyen_US
dc.description.serviceLieutenant Commander, United States Navyen_US
etd.thesisdegree.nameM.S. in Electrical Engineeringen_US
etd.thesisdegree.nameM.S. in Engineering Acousticsen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineEngineering Acousticsen_US
etd.thesisdegree.disciplineElectrical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record