Arrangement and method in rock breaking

摘要

(57) An arrangement and method for measuring rock breaking dynamics. The arrangement comprises at least one component of a rock breaking system, the component being subjected to stress during rock breaking, at least one 5 element at least part of which is arranged into a state of persistent magnetization, and at least one measuring member for measuring at least one parameter of rock breaking dynamics on the basis of a change in a magnetic property of the component. 10 (Figure 4) 5445013_1 (GHMatters) P97076.AU 2/06/14