dc.contributor.author | Ona, Egil | |
dc.contributor.author | Vestnes, Gudmund | |
dc.date.accessioned | 2012-07-03T08:58:21Z | |
dc.date.available | 2012-07-03T08:58:21Z | |
dc.date.issued | 1985 | |
dc.identifier.citation | This report is not to be cited without prior reference to the authors | no_NO |
dc.identifier.uri | http://hdl.handle.net/11250/103911 | |
dc.description.abstract | Measurements for checking the equivalent beam angle on a hullmounted
transducer have been made on a standard 38-29/25-E
SIMRAD transducer on the Norwegian research vessel "ELDJARN".
The measurements were made during a controlled trimming of the
vessel above a previously centered calibration sphere.
Comparisons with laboratory measurements of the transducer and
theory suggest an effect of the hull mounting of less than
0.2 dB in the equivalent beam angle. | no_NO |
dc.language.iso | eng | no_NO |
dc.publisher | ICES | no_NO |
dc.relation.ispartofseries | ICES CM Documents;1985/B:43 | |
dc.subject | acoustics | no_NO |
dc.subject | akustikk | no_NO |
dc.subject | gear experiments | no_NO |
dc.subject | redskapsforsøk | no_NO |
dc.title | Direct measurements of equivalent beam angle on hull-mounted transducers | no_NO |
dc.type | Working paper | no_NO |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 | no_NO |
dc.source.pagenumber | 10 s. | no_NO |