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Acoustic sorting of grinder balls

From National Research Council Canada

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Affiliation
  1. National Research Council Canada
FormatText, Article
Abstract
An automated nondestructive testing device using acoustic flaw detection for ball-mill grinder balls was developed. An initial study of the sound generated in air by the impact of grinder balls has shown that changes in ball velocity upon impact produce an initial low-frequency pressure pulse and that various resonances excited in the impacted spheres produce the higher-frequency oscillations that follow. Resonances of uncracked balls were related to a particular, spheroidal mode of vibration whereas resonances of cracked balls are attributed to " tuning fork " modes of vibration,
Publication date
PublisherAmerican Society for Nondestructive Testing
In
  • Materials Evaluation 42: 1515–1519.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 26240
NRC-IGM84-401-183
NPARC number23004743
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Record identifier07a6c52c-9cb1-4c61-a265-f33c10d3decc
Record created2018-12-14
Record modified2020-03-13
Date modified: