Malvern Instruments Ltd

Parsum - Spatial Filter Velocimetry

Parsum Probes use Spatial Filter Velocimetry to deliver in situ, real-time size and velocity measurements for solid particles suspended in a pneumatic or gravity flow gas stream. Robust, dustproof and waterproof they measure particles in the size range 50-6000 µm with velocities from 0.01-50 m/s and are suitable for any industrial environment.

The Parsum probe works on a patented fiber optic particle counting principle. It simultaneously measures solid particle size analysis and velocity of individual particles. The particle size and velocity instrument is able to determine particle count and size distributions based on statistics coupled with the Spatial Filter Velocimetry technique. The Spatial Filter Velocimetry technique is widely established and has been used to measure the velocity of objects for over three decades.

• Verification and calibration to a certified standard.
• Patented Measurement Technique.
• Volumetric size and linear number distributions.
• Constant measurement and no time gaps in data.
• Does not assume spherical particles.