Invention Grant
US09378725B2 Ultrasonic transducer and ultrasonic flow meter including ultrasonic transducer
有权
超声波换能器和超声波流量计包括超声波换能器
- Patent Title: Ultrasonic transducer and ultrasonic flow meter including ultrasonic transducer
- Patent Title (中): 超声波换能器和超声波流量计包括超声波换能器
-
Application No.: US14405362Application Date: 2013-06-05
-
Publication No.: US09378725B2Publication Date: 2016-06-28
- Inventor: Masato Satou , Hidetomo Nagahara , Yuji Fujii , Akihisa Adachi , Aoi Watanabe
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Brinks Gilson & Lione
- Priority: JP2012-127766 20120605
- International Application: PCT/JP2013/003535 WO 20130605
- International Announcement: WO2013/183292 WO 20131212
- Main IPC: G10K11/18
- IPC: G10K11/18 ; G01F1/66 ; B06B1/06
Abstract:
An ultrasonic transducer comprises a metal plate; an acoustic matching member fastened to one of surfaces of the metal plate, a piezoelectric substrate which is fastened to the other surface of the metal plate and generates a vibration; and an insulating damping member covering a surface of the piezoelectric substrate which surface is on an opposite side of a surface fastened to the metal plate; wherein a thickness of the insulating damping member is set to a length which is n/2 of a wavelength of the vibration propagating through the insulating damping member.
Public/Granted literature
- US20150128723A1 ULTRASONIC TRANSDUCER AND ULTRASONIC FLOW METER INCLUDING ULTRASONIC TRANSDUCER Public/Granted day:2015-05-14
Information query
