File:LBL Acoustic Positioning System AquaMap Shiphull.jpg
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| Description |
English: Operation of a Long Baseline (LBL) underwater acoustic positioning system for in-water ship hull inspections. Interrogator (A) mounted on the ROV transmits an acoustic signal that is received by baseline transponders (B, C, D, E) which are lowered to below the keel line of the ship in four locations. The reply of the baseline transponders is received by (A). Either the time-of-flight or the corresponding distances A-B, A-C, A-D and A-E are transmitted via the ROV umbilical (F) to the surface, where the ROV position is computed and displayed on a tracking screen agains the background of side-view and bottom-view diagrams of the vessel. |
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| Source | Own work |
| Author | Desertstar |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:43, 17 May 2009 | | 1,276 × 841 (707 KB) | Desertstar (talk | contribs) | {{Information |Description={{en|1=Operation of a Long Baseline (LBL) underwater acoustic positioning system for in-water ship hull inspections. Interrogator (A) mounted on the ROV transmits an acoustic signal that is received by baseline transponders (B, |
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