Concept
Sequoia Laser In-Situ Sediment Size Transmissometer model 100-B
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0441/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | LISST 100-B | |
| Definition | A self-contained unit which measures the scattering of LASER light at a number of angles. This primary measurement is mathematically inverted to give a grain size distribution, and also scaled to obtain the volume scattering function. The size distribution is presented as concentration in each of the grain-size class bins. The instrument has an optical path length of 5cm as standard (2.5cm optional) and measures particles over the size range 1.2 - 250um in 32 log-spaced size classes. The standard maximum sampling speed is 4 size distributions per second and the instrument has a depth rating of 300m. Optical transmission, water depth and temperature are recorded as supporting measurements. | |
| Date | None | |
| Identifier | TOOL0441 | |
| Note | accepted | |
| Is Version Of | TOOL0441 | |
| version | 1 | |
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