| 摘要 |
An objective is to provide a multichannel array type ultrasound probe possessing a transmission-reception separation type composite piezoelectric element, in which the operation during transmission and reception of ultrasound wave is separated, wherein a piezoelectric element for transmission possesses a ceramic material, a piezoelectric element for reception possesses a high sensitivity organic piezoelectric element material, and an acoustic matching layer is provided between a piezoelectric element for transmission and a piezoelectric element for reception to enhance high sensitivity in S/N ratio. Also disclosed is a multichannel array type ultrasound probe possessing a transmission-reception separation type composite piezoelectric element, wherein the composite piezoelectric element comprises an acoustic matching layer provided between a piezoelectric element for transmission possessing a ceramic material and a piezoelectric element for reception possessing an organic material.
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