Lasentec Partec 100 focused beam reflectance measurement particle sizer
|Within Vocab||SeaVoX Device Catalogue|
|Alternative Labels||Partec 100 FBRM|
|Definition||An in situ particle sizer that uses the principal of focused beam reflectance measurement (FBRM) to measure particle sizes in the range 2-1000 um in a liquid. The probe tip includes an optic filter, beam splitter, laser beam and sapphire window, through which laser light is passed into the liquid. The light is diffracted by particles suspended in the liquid and the FBRM measures the chord length distribution (CLD), which is a function of the number, size and shape of the particles. Typically, many thousands of chords are measured per second, providing a robust measurement sensitive to the change in the size or number of particles. The instrument can be deployed on a hydrographic wire and lowered to the required depth, where is is held steady while a particle spectrum is collected. The instrument was developed by Lasentec (also known as Lasentech), which has since been taken over by Mettler Toledo. The Partec 100 is no longer in production.|
|Has Current Version||1|
||in-situ particle sizers||Mapping: 468764|
||British Oceanographic Data Centre, Liverpool||Mapping: 1448474|
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