ULTRASONIC VIBRATION SUB-ELEMENT AND ULTRASOUND PROBE

Abstract: an ultrasonic vibration sub-element including a substrate, a ground layer, a first insulation layer, a second insulation layer, a first electrode layer, a third insulation layer, and a second electrode layer is provided. the first electrode layer is configured to receive a direct current voltage. the second electrode layer is configured to receive an alternating current signal. before the ultrasonic vibration sub-element is driven, there is a cavity between the first insulation layer and the second insulation layer. when the ultrasonic vibration sub-element is driven, the first electrode layer receives the direct current voltage and is configured to at least drive the second insulation layer to shrink toward the cavity. the second electrode layer receives the alternating current signal and is configured to at least drive the third insulation layer to vibrate. an ultrasound probe is also provided.

Inventor(s): Fu-Sheng Jiang, Yang-Zong Fan

CPC Classification: B06B1/0292 (METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. , , ; measurement of mechanical vibrations ; in direction finding, locating, distance or velocity measuring ; {generating seismic energy }; control of mechanical vibrations in general ; sound-producing devices, e.g. bells, sirens, whistles , {e.g. methods or devices for transmitting, conducting, or directing sound in general }; generation of electrical oscillations ; electromechanical resonators in general ; electromechanical transducers {for communication techniques, e.g. microphones, speakers} ))

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