Concept
Marine Electronics 3D Sand Ripple Profiling Logging Sonar
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0045/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Mar Elec 3D SRPLS | ||
| Definition | A dual axis mechanically scanning sonar unit with a built in hard disk drive and associated controlling computer, powered by an external battery pack but is self-contained. The sonar has an oil-filled hemi-spherical plastic "boot" providing protection for its acoustic transducer which operates with a narrow conical beam pattern. Typically the sonar is mounted vertically, looking down at the sea-bed, and captures a sequence of profiles of the sea-bed over a pre-programmed sector and range. The sonar gathers a single swath of data in the horizontal plane and then rotates the transducer through a pre-programmed angle around the vertical axis and repeats the process until a circular area underneath the sonar has been scanned in a sequence of radial spokes. The raw data represents the signal amplitude of the envelope of the returned echoes. A suite of sensors to measure conductivity, temperature, depth, pitch and roll are also mounted on the instrument. | ||
| Date | 2009-11-30T11:56:35 | ||
| Identifier | SDN:L22::TOOL0045 | ||
| Note | accepted | ||
| Has Current Version | 1 | ||
| version | 1 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L19:SDNKG17 |
sensor_model | Mapping: 1696130 |
| L05 SeaDataNet device categories - (2) | |||
| Related | B75:ORG00276 |
Marine Electronics Ltd | Mapping: 1448447 |
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