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DC Field | Value | Language |
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dc.contributor.author | Watson, J | - |
dc.contributor.author | Alexander, S | - |
dc.contributor.author | Craig, G | - |
dc.contributor.author | Hendry, DC | - |
dc.contributor.author | Hobson, PR | - |
dc.contributor.author | Lampitt, RS | - |
dc.contributor.author | Marteau, JM | - |
dc.contributor.author | Nareid, H | - |
dc.contributor.author | Nebrensky, JJ | - |
dc.contributor.author | Player, MA | - |
dc.contributor.author | Saw, K | - |
dc.contributor.author | Tipping, K | - |
dc.coverage.spatial | 7 | en |
dc.date.accessioned | 2008-11-12T16:09:27Z | - |
dc.date.available | 2008-11-12T16:09:27Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Proceedings of SPIE. 4659(2002) 69-75. | en |
dc.identifier.issn | 0277-786X | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/2821 | - |
dc.description.abstract | We describe the development, construction and sea testing of an underwater holographic camera (HoloCam) for in situ recording of marine organisms and particles in large volumes of sea water. HoloCam comprises a laser, power supply, holographic recording optics and plate holders, a water-tight housing and a support frame. Added to this are control electronics such that the entire camera is remotely operable and controllable from ship or dock-side. Uniquely the camera can simultaneously record both in-line and off-axis holograms using a pulsed frequency doubled Nd-YAG laser. In-line holography is capable of producing images of organisms with a resolution of better than 10 Pm (at concentrations up to a few thousand per cubic centimetre at the smallest sizes). Off-axis holograms of aquatic systems of up to 50,000 cm3 volume, have been recorded. Following initial laboratory testing, the holo-camera was evaluated in an observation tank and ultimately was tested in Loch Etive, Scotland. In-line and off-axis holograms were recorded to a depth of 100 m. We will present results on the test dives and evaluation of the camera performance. | en |
dc.format.extent | 430763 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | SPIE | en |
dc.rights | Copyright 2002 Society of Photo-Optical Instrumentation Engineers. | en |
dc.subject | Holography | en |
dc.subject | Underwater Camera | en |
dc.subject | Plankton | en |
dc.subject | Nd-YAG laser | en |
dc.title | The development and sea trials of a subsea holographic camera for large volume in-situ recording of marine organisms | en |
dc.type | Conference Paper | en |
Appears in Collections: | Electronic and Computer Engineering Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
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SPIE_4659.pdf | 420.67 kB | Adobe PDF | View/Open |
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