Acoustic imaging systems adaptable for use with low drive voltages

Acoustic imaging systems are provided. A representative acoustic imaging system includes a transducer that incorporates a backing and an acoustic element extending from the backing. The acoustic element includes a piezoelectric element and a de-matching layer. The de-matching layer is arranged betwe...

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Bibliographische Detailangaben
Hauptverfasser:	OSSMANN WILLIAM J, SAVORD BERNARD J
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS SURGERY TRANSPORTING
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Beschreibung
Zusammenfassung:	Acoustic imaging systems are provided. A representative acoustic imaging system includes a transducer that incorporates a backing and an acoustic element extending from the backing. The acoustic element includes a piezoelectric element and a de-matching layer. The de-matching layer is arranged between the backing and the piezoelectric element and exhibits an acoustic impedance greater than that of the piezoelectric element. The piezoelectric element exhibits a thickness that is less than one-half of a wavelength to be generated by the piezoelectric element. Methods also are provided.