Concept
SINTEF Ocean SilCam telecentric particle imaging system
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL2206/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | SINTEF Ocean Silcam | ||
| Definition | A telecentric in-situ particle imaging system designed to quantify high concentrations of suspended particulates in seawater, such as zooplankton, large phytoplankton, mineral grains, marine snow and pollutants such as oil droplets and gas bubbles. SilCam can characterise particle types based on optical properties. It is a restricted path length telecentric system, using backlighting to create quasi-silhouettes of particles suspended between the light and the camera. Background illumination consists of a white LED array, and its beam is expanded and diffused using a holographic diffuser immediately prior to the housing window. The incident light passes through the sample volume, through the housing window and into the telecentric receiving optics, which is attached to a colour CCD (Charge-Coupled Device) camera. It produces 15 images per second which are recorded onto solid-state disk to enable continuous operation at 15 Hz, with a path length that is adjusted according to the concentration of particles. The optical configuration is mounted into two underwater housings (one for the illumination and one for the receiving optics and camera), which are rated to 3000 m depth. Three different magnifications (x0.5, x0.25, and x0.125) are available, each resulting in pixel sizes of 7.2 um, 14.4 um and 27.5 um. It provides particle size distribution and concentrations ranging from 50 um to several cm in length. | ||
| Date | 2025-08-15T09:42:13 | ||
| Identifier | SDN:L22::TOOL2206 | ||
| Note | accepted | ||
| Has Current Version | 2 | ||
| Version | 1 | ||
| version | 2 | ||
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | ||
| Broader | L05:150 |
in-situ particle sizers | Mapping: 2098048 |
| Related | B75:ORG02124 |
SINTEF Ocean | Mapping: 2098049 |
L35:MAN0356 |
SINTEF Ocean | Mapping: 2098050 | |
Alternate Formats
Other formats for this page:
RDF/XML Turtle JSON-LDAlternate Profiles
Other views of this page:
Alternate Profiles ?Different Media Types (HTML, text, RDF, JSON etc.) and different information model views, profiles, are available for this resource.
NVS html view ? Default NVS html view.
