公开(公告)号：US20230145490A1

公开(公告)日：2023-05-11

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: G01F1/667 ,  G01F1/66 ,  G01F1/7082

CPC classification number: G01F1/667 ,  G01F1/662 ,  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：US20240353246A1

公开(公告)日：2024-10-24

申请号：US18681949

申请日：2022-09-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto NAKANO ,  Masahiko HASHIMOTO ,  Masato SATOU ,  Tomoki MASUDA ,  Yuuji NAKABAYASHI ,  Hidetomo NAGAHARA

IPC: G01F1/667 ,  G01F1/66

CPC classification number: G01F1/667 ,  G01F1/662

Abstract: A vibration propagation member is configured to operate by being bonded to one surface of a vibration means. The vibration propagation member includes: a top plate; a sidewall; and at least one vertical partition disposed perpendicularly to the top plate. The vibration propagation member has a plurality of membrane structures defined by the top plate and the at least one vertical partition.

公开(公告)号：US20230296568A1

公开(公告)日：2023-09-21

申请号：US18013698

申请日：2021-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato SATOU ,  Motoyuki NAWA ,  Asako MIYOSHI ,  Masataka MATSUDA ,  Yuuji NAKABAYASHI

IPC: G01N29/32 ,  G01N29/024 ,  G01F1/667 ,  G01N29/22

CPC classification number: G01N29/32 ,  G01N29/024 ,  G01F1/668 ,  G01N29/222

Abstract: The physical quantity measurement device includes a secondary flow path disposed outside a multilayer unit and configured to connect an upstream opening to a downstream opening. The secondary flow path is disposed gravitationally below a primary flow path. Ultrasonic transceivers are disposed to project into a flow in the multilayer unit. In the thus-configured physical quantity measurement device, the entry of water droplets into an ultrasonic propagation path and the adhesion of water droplets to the ultrasonic transceivers are substantially prevented, so that, even when the fluid flowing in contains water droplets, the physical quantity measurement device can measure the flow rate of the fluid and the concentration of components contained in the fluid.

公开(公告)号：US20230273156A1

公开(公告)日：2023-08-31

申请号：US18012537

申请日：2021-07-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masato SATOU ,  Motoyuki NAWA ,  Asako MIYOSHI ,  Masataka MATSUDA ,  Yuuji NAKABAYASHI

IPC: G01N29/024 ,  G01N29/22

CPC classification number: G01N29/024 ,  G01N29/222 ,  G01N2291/011 ,  G01N2291/02836

Abstract: A physical quantity measurement device is provided which is capable of measuring a component in a fluid to be measured even when the fluid contains droplets such as fine water droplets. The physical quantity measurement device includes, at an inlet opening (5) of a sub-channel (7), an inflow direction regulator (13) which includes guide pieces (12) each of which is inclined at predetermined angle θ with respect to the flow direction in a main channel (1). The angle θ of inflow direction regulator (13) is set to a value that is greater than 90 degrees in relation to the flow direction of the main channel (1).