Average Particle Size Analyzer
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Description
PMI's Average Particle Size Analyzer (APS) offers a simple, fast, and reliable technique for average particle size measurement - a measurement not readily achieved by any other technique. Innovative use of flow permeametry combined with the use of sophisticated self-adjusting viscous-flow controllers enables testing of a wide range of powders, including materials with surface areas of only several square meters per gram.
Principles of Operation
The instrument operates on the principle of flow permeametry. By measuring the flow of a noncorrosive gas through a sample at various differential pressures, one is able to deduct, through a series of equations, the external surface area of the sample. The average fiber diameter is computed from the external surface area by assuming spherical particles of the same size.
Applications
Providing the user with an average particle diameter measurement in less than five minutes, the main application is quality control. Samples tested include pharmaceutical powders, electrode components, ceramic powders, chemical powders, metallic powders, and other porous substances.
The instrument is utilized for this function in several industries, such as:
Learn about how this is the fastest technique for calculating envelope surface area and average particle size of ceramic powders.
For more information about applications please see our other technical papers.
Features
- Uses nitrogen or other noncorrosive gases; no expensive gas mixtures required
- Windows-based software handles all control, measurement, data collection, and report generation; manual control also possible
- Compatible with Windows 95 or higher
- Real-time graphical test display depicts testing status and results throughout operation
- Nondestructive testing
- Length of test approximately 5 minutes
- Wide range of acceptable sample types and sizes
- Minimal maintenance required
Specifications
For more information see our Average Particle Size Analyzer Brochure, Porometers Brochure, and Characterization of Pore Structure Brochure.