ACOUSTIC TRANSDUCER AND DEVICES COMPRISING THE SAME

ACOUSTIC TRANSDUCER AND DEVICES COMPRISING THE SAME

An acoustic transducer (10A), is provided that comprises a piezo-electric layer (11) that is arranged between a first electrode (12) and a second electrode (13) and that has a pair of mutually opposite main surfaces (111, 112). At least one of the first electrode and the second electrode is mechanic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VAN RIEL, Martinus Cornelius Johannes Maria, QUESSON, Benoit André Jacques, NIEUWKOOP, Evert, VAN NEER, Paul Louis Maria Joseph
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
FOR PERFORMING MECHANICAL WORK IN GENERAL
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY
PERFORMING OPERATIONS
PHYSICS
TESTING
TRANSPORTING
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Beschreibung
Zusammenfassung:An acoustic transducer (10A), is provided that comprises a piezo-electric layer (11) that is arranged between a first electrode (12) and a second electrode (13) and that has a pair of mutually opposite main surfaces (111, 112). At least one of the first electrode and the second electrode is mechanically decoupled from the main surfaces of the piezo-electric layer. Therewith the acoustic transducer can be driven at substantially higher frequencies. The improved acoustic transducer is particularly suitable for acoustic microscopy applications.