dc.contributor.author | Gytre, Trygve | |
dc.contributor.author | Østensen, Øivind | |
dc.date.accessioned | 2012-08-28T13:40:40Z | |
dc.date.available | 2012-08-28T13:40:40Z | |
dc.date.issued | 1991 | |
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/11250/104876 | |
dc.description.abstract | For several years Inst. of Marine Research Bergen has been developing miniaturized
modular current meters. Thanks to major improvements in electronic component
technology in recent years, a physically small current meter can now be designed with
processing and recording capacity which is comparable to much larger instruments.
The paper describes the design and field performance of a new miniaturized vector
averaging "Mini" current meter which can measure and record up to 6000 data sets.
Via a built in two way optical data communication system all recorded data in the
instrument can be transferred to a PC in less than 30 s.
In an intercomparision experiment during May 1991 two "Mini" current meters were
moored close to two Aanderaa RCM-7 current meters. The instruments were positioned
20 and 28 meters from the surface in a region where the current speed varied from 0 - 20
cm/s.
Technically the new instruments functioned well and in accordance with their design
specifications.
The intercomparision showed that all of the RCM-7 and the "Mini" current meters when
compensated for a minor directional offset in one instrument - responded almost
identically to current speeds between 4- 14 cm/s. Beyond 14 cm/s the "Mini" current
meters showed a slightly higher current speed. | no_NO |
dc.language.iso | eng | no_NO |
dc.publisher | ICES | no_NO |
dc.relation.ispartofseries | ICES CM Documents;1991/C:20 | |
dc.subject | currents | no_NO |
dc.subject | strømforhold | no_NO |
dc.subject | gear experiments | no_NO |
dc.subject | redskapsforsøk | no_NO |
dc.title | Field experiences with a new miniature vector averaging current meter | no_NO |
dc.type | Working paper | no_NO |
dc.subject.nsi | VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 | no_NO |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 | no_NO |
dc.source.pagenumber | 8 s. | no_NO |