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Memorial University - Electronic Theses and Dissertations 2
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Document Description
TitleAcquisition of ice properties using mechanical actuation
AuthorWrinch, Michael C., 1972-
DescriptionThesis (M.Eng.)--Memorial University of Newfoundland, 2002. Engineering and Applied Science
Paginationvii, 116 leaves : ill.
SubjectUnderwater acoustics--Instruments; Ice--Remote sensing; Sea ice--Remote sensing; Ice on rivers, lakes, etc.--Remote sensing
Degree GrantorMemorial University of Newfoundland. Faculty of Engineering and Applied Science
DisciplineEngineering and Applied Science
NotesBibliography: leaves 115-116.
AbstractResearch surrounding acoustic resonance properties of ice has increased and now a practical method for depth profiling has been developed. Experiments were performed in real-time with high sensitivity, biaxial, wide bandwidth accelerometers (10 KHz bandwidth), which encompassed a high sampling rate of 200 Kb/sec/channel with a 12-bit resolution (36 dB). The implementation of signal processing produced a seismic and resonant signature. Initially repeated results revealed an accurate correlation between ice depth to its characteristic frequency. The required velocity was determined using the time of arrival and the cross-correlation between transducers. Theoretical analysis has indicated that the system will be capable of resolving values close to the theoretically calculated error of less than 6 %: this device therefore can be readily realized as a compact portable field instrument.
Resource TypeElectronic thesis or dissertation
FormatImage/jpeg; Application/pdf
SourcePaper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifiera1564160
RightsThe author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
CollectionElectronic Theses and Dissertations
Scanning StatusCompleted
PDF File(11.73 MB) --
CONTENTdm file name277462.cpd