MEASUREMENT OF MECHANICAL VIBRATIONS, e.g. OF SOUND WAVES (generation of mechanical vibrations without measurement Fulltext... Hierarchy... Expanded...B06B, Fulltext... Hierarchy... Expanded...G10, Fulltext... Hierarchy... Expanded...H04R; measuring position, direction or velocity of an object Fulltext... Hierarchy... Expanded...G01C, Fulltext... Hierarchy... Expanded...G01S; transducers per se, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...G01L, Fulltext... Hierarchy... Expanded...H01L, Fulltext... Hierarchy... Expanded...H04R; determining unbalance Fulltext... Hierarchy... Expanded...G01M 1/14; determining properties of materials by sonic or ultrasonic waves transmitted therethrough Fulltext... Hierarchy... Expanded...G01N; seismology, seismic prospecting, acoustic prospecting Fulltext... Hierarchy... Expanded...G01V 1/00; recording vibrations for subsequent reproduction Fulltext... Hierarchy... Expanded...G10L, Fulltext... Hierarchy... Expanded...G11B; manufacture of electromechanical resonators by processes which include measurement of frequency with consequential modification of the resonator Fulltext... Hierarchy... Expanded...H03H 3/00) |