narrow-beam ultrasonic transducer

Игры ⚽ Поможем написать курсовую

Sound from ultrasound — Contents 1 Parametric array 2 Applications 2.1 Commercial advertising … Wikipedia
Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) … Wikipedia
Acoustic microscopy — Introduction = Acoustic microscopes employ very high or ultra high frequency ultrasound. These microscopes operate nondestructively and penetrate most solid materials to make visible images of internal features, including defects such as cracks,… … Wikipedia
Diffraction — Computer generated intensity pattern formed on a screen by diffraction from a square aperture … Wikipedia
Directional sound — See sound from ultrasound for a beam of ultrasound that makes audible sound in a restricted target area without a receiving set. Directional Sound refers to the notion of using various devices to create fields of sound which spread less than most … Wikipedia
echocardiography — [ek΄ō kär΄dē äg′rə fē] n. pl. echocardiographies a technique for examining the internal structure of the heart, using reflections from high frequency sound waves to form a picture or display (echocardiogram) echocardiographic [ek΄o car΄dē ə… … Universalium

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