Sequoia LISST ABS acoustic backscatter sensor
|Within Vocab||SeaVoX Device Catalogue|
|Definition||A submersible in-situ sensor that is used to analyse suspended sediment or particle concentration in water. It is designed for fixed point measurements. It measures suspended sediment concentration. The sensor measures backscatter. A short pulse of high-frequency sound (cell) is transmitted by a ceramic transducer, and the same transducer receives signals reflected by particles. The sensor measures backscatter signal from two cells to compensate for attenuation by particles in the water. The sensor operates at 8 MHz frequency to ensure nearly flat response to particles in the size range 30-400 microns. Concentration range: 1 mg/L to 30 g/L (7 um dust); up to 20 g/L (200 um sand). Depth rating: 100 m.|
|Has Current Version||1|
||acoustic backscatter sensors||Mapping: 1711477|
||Sequoia Scientific Incorporated||Mapping: 1711478|
||Sequoia Scientific||Mapping: 1711479|
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