Concept
Video Plankton Recorder {VPR} imaging system - Davis et al. (1992)
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1584/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | VPR | |
| Definition | A Video Plankton Recorder is an underwater video microscope system that that takes images of plankton and particulate matter as small as 50 microns and up to a few centimeters in size. It has been used on towed bodies (V-fin depressor, Seasoar, and the new Fast towfish), ROVs (JASON and SeaRover), AUVs (REMUS), and autonomous profiling moorings. A video camera mounted in one of the arms focuses on a point midway between the two arms. A strobe on the other arm illuminates the imaged volume and flashes 60 times per second, producing 60 images per second of the particles and plankton in the water. The images are then saved internally on a computer hard disk and later plotted. A CTD can also be mounted next to the VPR to collect depth, temperature, and salinity information at the same time as each video image. maximum depth of 350 meters. | |
| Date | None | |
| Identifier | TOOL1584 | |
| Note | accepted | |
| Is Version Of | TOOL1584 | |
| version | 1 | |
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