The BeVision D2 is a compact, fully automatic, and easy-to-use particle size and shape analyzer based on dynamic image analysis (DIN ISO 13322). Sample feeding and dispersion are performed dry using a software-controlled vibrating chute, making it suitable for free-flowing powders and granulates. The high-speed camera with telecentric lens is capable of photographing more than 3000 particles/min in the drop chute and evaluating them in real time.
The experimental conditions, such as sample feeding, image capture, and evaluation, are specified in advance in the software’s standard operating procedure (SOP). During the measurement, the sample is filled into the sample funnel and then optimally dispersed into the measuring shaft using the specified feeding parameters (funnel-feeder gap, vibration frequency, chute gap width). The high-speed camera system – equipped with autofocus – then captures images of the particles at a frame rate of up to 120 fps, which are immediately evaluated graphically and statistically in real time. Depending on the application (e.g., spherical, plate-, or rod-shaped particles), 24 different particle sizes or shape parameters are available for display and evaluation (DIN-ISO 9276).
1 Depending on the device configuration
Depending on the planned application, the BeVision D2 offers five different objective lenses with different magnifications and, consequently, particle size measurement ranges for the most accurate measurements possible. In accordance with ISO 13322, it is recommended to select the lens with the measuring range that covers the entire sample particle size range as completely and centrally as possible – i.e., not in the peripheral areas.


Norms
/1/ ISO 13322 Dynamic image analysis methods
/2/ ISO 9276 Representation of results of particle size analysis
Technical articles
/1/ PARTICLE WORLD 19; p. 10 – 11; “Particle size and shape measurement of granulates, dry powders and dispersions using dynamic image analysis”
![]() Construction sand | ![]() Mortar |
![]() Fertilizer (granular) | ![]() Activated carbon |
![]() Muesli, cornflakes | ![]() Rice |