USE OF MECHANICAL AND ELECTROMECHANICAL E FFECTS IN MEASURING ELASTIC-WAVES IN RODS

Measuring methods for measurements of elastic longitudinal waves in ro ds are presented. In this connection, it is concerned with two sensors taking mechanical values and three sensors measuring the mechanical w ave parameters meters with the help of electromechanical effects using electrical or magnetic methods. It is shown, that additional system p arameters can be obtained from measured variables by relations of elas tic wave theory. Of practical importance are the wave measurements in tools of percussive machines and in impact stressed building component s.