The Uniaxial Powder Tester (UPT) is a stand-alone uniaxial tester for simple, sensitive and cost-efficient powder characterization. Developed in collaboration with the University of Edinburgh and a major industrial powder processor, the new tester delivers automated, highly repeatable measurement and provides a cost effective alternative to traditional powder testing techniques. It offers significant value to engineers and QC analysts working across a number of industries, from bulk solids handling to pharmaceuticals.
The new instrument measures unconfined yield strength (UYS), a parameter typically derived indirectly via biaxial shear cell analysis, which is widely used to assess and rank the flowability of powders. Uniaxial testing involves the construction of a consolidated powder column, which is then fractured through the application of a vertical stress to directly measure UYS, also known as σc. Fundamental to the successful implementation of the technique is the construction of a uniformly consolidated powder column, and subsequent removal of the containing sleeve with minimal disturbance of the compacted column. Freeman Technology
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