Concept
Video Plankton Recorder {VPR} imaging system - Davis et al. (1992)
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1584/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | VPR | ||
| Definition | The Video Plankton Recorder (VPR) is an underwater video microscope system allowing image generation of plankton and particulate matter particles from 50 µm to a few centimetres in size. The device can be used on towed bodies e.g. V-fin depressor, and SeaSoar (a towed undulating vehicle); Remotely Operated Vehicles (ROVs) e.g. JASON and SeaRover; Autonomous Underwater Vehicles (AUV) e.g. 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 basic physico-chemical parameters such as depth, temperature, and salinity at the same time as each video image. The VPR has a depth rating of 350 meters. | ||
| Date | 2021-01-28T10:16:3 | ||
| Identifier | SDN:L22::TOOL1584 | ||
| Note | accepted | ||
| Has Current Version | 3 | ||
| Version | 1 , 2 | ||
| version | 3 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L05:150 |
in-situ particle sizers | Mapping: 1617143 |
L19:SDNKG17 |
sensor_model | Mapping: 1697215 | |
| Related | B75:UNSPEC |
Unspecified | Mapping: 1617155 |
L35:MAN0001 |
unspecified | Mapping: 1617167 | |
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