FBRM

AcronymDefinition
FBRMFractional Bit Rate Modulation
FBRMFocused Beam Reflectance Measurement (crystal growth)
FBRMFocused Beam Reflectance Method (particle size measurement with a laserlight)
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The FBRM technique is based on the scattering of a laser light beam that is focused on the outside of a sapphire window.
The principle of operation of the FBRM technique is shown schematically in Fig.
The FBRM technique can be used successfully in many different applications, including monitoring of crystallization processes [8], characterization of biomass in suspension cultures [11], monitoring of gas hydrate formation [10], among other applications [31].
Object of the contract is the extension of an existing fermenter (bioreactor) with Focused Beam Reflectance Measurement (FBRM) and PVM (Particle Visualization Measurement) probes from the same manufacturer.
Researchers at CSIRO Australia have used FBRM technology to follow flocculation in turbulent pipe flow to quantify the kinetics of aggregate growth and breakage.
The FBRM probe is immersed into a dilute or concentrated flowing slurry, droplet emulsion or fluidized particle system.
Unlike other particle analysis techniques, FBRM measurement makes no assumption of particle shape.
* FBRM, focused beam reflectance measurement, Lasentec M500 (Metler Toledo) with stirrer RW16 (Ika Labotechnic) and Titrator (Crison Instruments).
* The FBRM measures in real time the chord size distribution of the suspended particles.
The conditions of the experiments were such that the results of pulp flocculation measured by FBRM, drainage and retention for the BKP fibre suspensions could be compared.
FBRM helps us optimize polymer dosages and study floc characteristics, such as floc size and strength.
Screening methodologies to determine if plug flow crystallization is appropriate for a particular chemistry is also explored, as is using FBRM and Particle Vision Microscopy (PVM) to monitor and maximize operating conditions.