公开(公告)号：EP2905616B1

公开(公告)日：2017-01-04

申请号：EP13843163.0

申请日：2013-10-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUZUKI, Shigeru ,  NISHIMURA, Kazunori ,  NAKAMURA, Hiroyuki ,  IWASAKI, Tomohiro

IPC: G01N29/02 ,  G01N29/036 ,  G01N33/543 ,  H03H9/02 ,  H03H9/145 ,  B06B1/06

CPC classification number: G01H17/00 ,  B06B1/0622 ,  G01D5/12 ,  G01N29/022 ,  G01N29/036 ,  G01N33/5438 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0423 ,  H03H9/02637 ,  H03H9/02787 ,  H03H9/14505 ,  H03H9/1455

公开(公告)号：EP2905616A1

公开(公告)日：2015-08-12

申请号：EP13843163.0

申请日：2013-10-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUZUKI, Shigeru ,  NISHIMURA, Kazunori ,  NAKAMURA, Hiroyuki ,  IWASAKI, Tomohiro

IPC: G01N33/543 ,  H03H9/145 ,  H03H9/25

CPC classification number: G01H17/00 ,  B06B1/0622 ,  G01D5/12 ,  G01N29/022 ,  G01N29/036 ,  G01N33/5438 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0423 ,  H03H9/02637 ,  H03H9/02787 ,  H03H9/14505 ,  H03H9/1455

Abstract: An acoustic wave element includes a piezoelectric substrate, an excitation electrode configured to excite and output a main acoustic wave on the piezoelectric substrate, a receiving electrode configured to receive the main acoustic wave, a propagation path configured to allow the main acoustic wave to propagate along the piezoelectric substrate between the excitation electrode and the receiving electrode, and a sensing portion configured to react to an object substance. The propagation path is configured to allow the main acoustic wave to pass plural times through the sensing portion along the propagation path. This acoustic wave element has high sensitivity to the object substance.

Abstract translation: 声波元件包括：压电基板，激励电极，被配置为在压电基板上激励和输出主声波;接收电极，被配置为接收主声波;传播路径，被配置为允许主声波沿着传播 所述激励电极与所述接收电极之间的所述压电基板，以及被配置为对对象物质进行反应的感测部。 传播路径被配置为允许主声波沿着传播路径通过感测部分多次。 该声波元件对物体具有高灵敏度。