公开(公告)号：US09541431B2

公开(公告)日：2017-01-10

申请号：US14404314

申请日：2013-06-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto Nakano ,  Hajime Miyata ,  Yuji Fujii

IPC: G01F1/66

CPC classification number: G01F1/66 ,  G01F1/662

Abstract: An ultrasonic flow meter unit, mounted to a fluid passage through which a measurement target fluid flows, comprises a pair of ultrasonic transducers each including a piezoelectric substrate, and an acoustic matching member; a measuring circuit which measures a flow of a target fluid based on time for which an ultrasonic pulse propagates between the pair of ultrasonic transducers; and an insulating damping member unitarily formed to cover at least a portion of each of a portion of each of the pair of ultrasonic transducers, which portion contacts the fluid passage, the piezoelectric substrate, and the measuring circuit.

Abstract translation: 超声波流量计单元安装在测量目标流体流过的流体通道中，包括一对超声换能器，每个超声换能器包括压电基片和声匹配元件; 测量电路，其基于超声脉冲在所述一对超声换能器之间传播的时间来测量目标流体的流量; 以及绝缘阻尼构件，其一体地形成为覆盖所述一对超声波换能器中的每一个的至少一部分，该部分接触流体通道，压电基板和测量电路。

公开(公告)号：US12270693B2

公开(公告)日：2025-04-08

申请号：US17916276

申请日：2021-03-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto Nakano ,  Masamichi Hashida ,  Tomoki Masuda ,  Yuuji Nakabayashi ,  Hidetomo Nagahara

IPC: G01F1/66 ,  G01F1/667 ,  G01F1/7082

Abstract: The present disclosure provides an ultrasonic transceiver capable of stably measuring a fluid of high temperature and high humidity for a long period, and provides an ultrasonic flowmeter, an ultrasonic flow velocimeter, and an ultrasonic densitometer each including the ultrasonic transceiver. An ultrasonic transceiver (1) comprises a piezoelectric body (3) and an acoustic matching body (2) disposed in one face of the piezoelectric body (3), wherein the acoustic matching body (2) includes: a top plate, a bottom plate, and a side wall that define a closed space; and a perpendicular partition wall formed substantially perpendicular to the bottom plate and adhering to the top plate and the bottom plate, thereby dividing a closed space.

公开(公告)号：US20150143919A1

公开(公告)日：2015-05-28

申请号：US14404314

申请日：2013-06-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto Nakano ,  Hajime Miyata ,  Yuji Fujii

IPC: G01F1/66

CPC classification number: G01F1/66 ,  G01F1/662

Abstract: An ultrasonic flow meter unit, mounted to a fluid passage through which a measurement target fluid flows, comprises a pair of ultrasonic transducers each including a piezoelectric substrate, and an acoustic matching member; a measuring circuit which measures a flow of a target fluid based on time for which an ultrasonic pulse propagates between the pair of ultrasonic transducers; and an insulating damping member unitarily formed to cover at least a portion of each of a portion of each of the pair of ultrasonic transducers, which portion contacts the fluid passage, the piezoelectric substrate, and the measuring circuit.

Abstract translation: 超声波流量计单元安装在测量目标流体流过的流体通道中，包括一对超声换能器，每个超声换能器包括压电基片和声匹配元件; 测量电路，其基于超声脉冲在所述一对超声换能器之间传播的时间来测量目标流体的流量; 以及绝缘阻尼构件，其一体地形成为覆盖所述一对超声波换能器中的每一个的至少一部分，该部分接触流体通道，压电基板和测量电路。