Concept
Imagenex 881A Digital Multi-Frequency (profiling) single-beam echosounder
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1363/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | Imagenex 881A Profiling | |
| Definition | A programmable multi-frequency digital scanning profiling single-beam echosounder. It is used for a variety of applications including surveying, dam face inspection, pipeline inspection, underwater archaeology and scientific research. It can be mounted on small vessels or on ROV, AUV and UUVs. Profiling sonar is primarily used for quantitative measurements where a narrow, conically shaped beam generates a single point per ping. The 881A Profiling has a default operating frequency of 675 kHz, but other frequencies are tunable from 600 kHz to 1 MHz in 5 kHz steps via programmable software configurations. The beam width varies from 0.9 x 10 degrees to 4 x 20 degrees depending on the frequency specified. The aluminium-housed instrument can operate up to 1000 m depth; a titanium-housed version is also available which operates up to 3000 m depth. At a range of 1 m to 4 m, it has a resolution of 2mm. At a range of 5 m or greater, it has a resolution of 10 mm. The minimum detectable range is 150 mm. | |
| Date | None | |
| Identifier | TOOL1363 | |
| Note | accepted | |
| Is Version Of | TOOL1363 | |
| version | 1 | |
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