Accurate measurement of particle impact parameters
A H Kharaz; D A Gorham; A D Salman; A H Kharaz; Faculty of Technology, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK; D A Gorham; Faculty of Technology, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK; A D Salman; Faculty of Technology, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
Журнал:
Measurement Science and Technology
Дата:
1999-01-01
Аннотация:
The aim of this paper is to describe an experimental facility to measure the low velocity impact behaviour of spherical particles with high accuracy. Measurements have been made of particle rotation, normal restitution coefficient to within of glancing incidence, and tangential restitution coefficient to within of normal impact, with very low scatter. The results are accurate enough to be used for quantitative comparison to theoretical studies. Achievement of a high level of precision and reproducibility has involved detailed attention to all aspects of the experiment design, construction, control and computer-based image measurement.
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