Dynamic Image Analysis

Meaning

High speed digital photography systems capture and evaluate the shape and size of individual particles in a moving powder stream. Sourcing teams use dynamic image analysis to measure the sphericity and aspect ratio of cathode active materials. This method provides real-time data that traditional laser diffraction techniques cannot deliver, such as identifying elongated particles or agglomerates.

Sourcing agreements require this analysis to verify the flowability and packing behavior of the powder.

Characterization Method

Moving particles pass through a light source where a high resolution camera captures their projected shadows. Algorithms calculate the equivalent area diameter, sphericity, and symmetry of each particle.

Process Monitoring

Real time monitoring allows operators to detect changes in the morphology of the powder during atomization. This capability enables rapid adjustments to gas flow rates and melt temperatures.

Quality Control

Non spherical particles reduce the flowability of the powder, which complicates the feeding of die presses. This analysis detects these irregular shapes before the material enters production.