MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC 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 subclasses, 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 material by sonic or ultrasonic waves transmitted therethrough Fulltext... Hierarchy... Expanded...G01N; imaging of objects using sonar Fulltext... Hierarchy... Expanded...G01S 15/00; seismology, seismic prospecting, acoustic prospecting Fulltext... Hierarchy... Expanded...G01V 1/00; acousto-optical devices per se Fulltext... Hierarchy... Expanded...G02F; obtaining records by techniques analogous to photography using ultrasonic, sonic or infrasonic waves Fulltext... Hierarchy... Expanded...G03B 42/06; speech analysis or synthesis, speech recognition Fulltext... Hierarchy... Expanded...G10L; information storage based on relative movement between record carrier and transducer 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; pictorial communication using ultrasonic, sonic or infrasonic waves converted into electric picture-representative signals Fulltext... Hierarchy... Expanded...H04N, e.g. Fulltext... Hierarchy... Expanded...H04N 5/31) [4] |