DPA

What Is Dynamic Particle Analysis?

DPA analyzes particles by capturing high-speed images as they flow through a measurement zone. Advanced image processing software identifies individual particles and calculates parameters based on real particle geometry rather than indirect assumptions.

Because particles are measured individually, DPA provides more detailed information than techniques based solely on equivalent spherical diameter.

What DPA Measures

Dynamic Particle Analysis provides multiple particle parameters, including:

Particle size distribution (based on real projected area or equivalent diameters)
Particle shape parameters, such as:
- aspect ratio
- circularity
- elongation
- convexity
Particle count and population statistics
Morphological differences between samples

This makes DPA especially useful when particle shape influences flow, packing, reactivity, or product performance.

Why Use DPA?

DPA is chosen when traditional particle sizing methods are insufficient. It helps answer questions such as:

Are particles spherical, elongated, or irregular?
Is agglomeration present?
Do different batches have the same shape distribution?
How does processing affect particle morphology?
Are broken or oversized particles present?

Because shape matters as much as size in many applications, DPA provides insight that single-value sizing methods cannot.

Typical Application Scenarios

Powders & Granular Materials

Size and shape characterization for powders
Detection of fines, agglomerates, or oversized particles
Process monitoring for milling, grinding, or granulation

Pharmaceuticals & Chemicals

Particle morphology control for dissolution and flow
Batch consistency and supplier qualification
Comparison of crystallization or drying processes

Food & Consumer Products

Ingredient particle shape and size consistency
Detection of foreign or abnormal particles
Quality control of powders and granules

Materials R&D

Correlation of particle shape with performance
Evaluation of new processing routes
Optimization of particle engineering strategies

Failure & Troubleshooting

Investigation of flow issues, segregation, or poor compaction
Comparison of “good vs. problematic” materials
Identification of abnormal particle populations

Sample Types

DPA can be applied to:

dry powders
granules and pellets
suspensions and dispersions (case-dependent)
crystalline and amorphous particles

Xinbodi evaluates sample properties such as concentration, transparency, and particle size range to select optimal measurement conditions.

What You Will Receive

Each DPA project is delivered with a clear, structured report designed for engineering and QC decisions. A typical deliverable includes:

measurement objective and sample description
test conditions and analysis parameters
particle size distribution results
particle shape distributions and statistics
representative particle images
comparison summaries (batch vs. batch, supplier vs. supplier)
interpretation linked to processing and performance
recommendations for optimization or complementary testing

Why Choose Xinbodi for DPA?

Image-based analysis reflecting true particle geometry
Ability to evaluate both size and shape simultaneously
Experience across powders, chemicals, and advanced materials
Clear interpretation beyond raw distributions
Support for R&D, QC, and troubleshooting
Confidential handling of proprietary materials and data

DPA