公开(公告)号：US20170343398A1

公开(公告)日：2017-11-30

申请号：US15537182

申请日：2016-03-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi NAKAI ,  Kenji YASUDA ,  Masato SATOU ,  Hideaki MORIHANA ,  Yuji FUJII

IPC: G01F1/66 ,  F15B1/02 ,  B32B3/12

CPC classification number: G01F1/662 ,  B32B3/12 ,  F15B1/02

Abstract: A flow rate measurement device includes a turbulence reduction component having opening portions and disposed between a measurement channel and a pair of hole portions across which a pair of ultrasonic transceivers are disposed from the measurement channel. The pair of opening portions of the turbulence reduction component each have frame pieces which are substantially identical in width. This makes it possible to reduce, with small attenuation of ultrasound, the occurrence of turbulence that is attributable to entrained flows in the pair of hole portions and is a cause of measurement error, thereby ensuring measurement accuracy.

公开(公告)号：US20160341584A1

公开(公告)日：2016-11-24

申请号：US15112183

申请日：2015-01-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoto NAGANUMA ,  Masato SATOU ,  Masanobu TERAJI ,  Hidetomo NAGAHARA ,  Hideaki MORIHANA

IPC: G01F1/66 ,  G01F15/18 ,  G01F15/14

CPC classification number: G01F1/662 ,  G01F1/66 ,  G01F15/14 ,  G01F15/18 ,  G01F15/185

Abstract: A gas flowmeter includes a device body that air-tightly encapsulates a measurement target fluid, an inlet configured to introduce the measurement target fluid into the device body, an outlet configured to exhaust the measurement target fluid from the device body, and a connector that is connected with the outlet. The gas flowmeter further includes a flow rate measuring part of an ultrasonic type that is connected with the connector and calculates a flow rate of the measurement target fluid flowing inside, and a flow path member that is connected with the connector and has a flow path shape identical with that of the flow rate measuring part. The flow rate measuring part and the flow path member are connected with the connector in a vertical direction in such a manner that a side of inflow ports through which the measurement target fluid flows in faces downward.

Abstract translation: 气体流量计包括气密地封装测量目标流体的装置本体，被配置为将测量目标流体引入装置主体的入口，被配置为从装置主体排出测量目标流体的出口，以及连接器， 与插座连接。 气体流量计还包括与连接器连接的超声波类型的流量测量部分，并计算在内部流动的测量对象流体的流量，以及与连接器连接并具有流路形状的流路部件 与流量测量部分相同。 流量测量部件和流路部件在垂直方向上与连接器连接，使得测量对象流体流过的流入口的一侧面向下。

公开(公告)号：US20180188086A1

公开(公告)日：2018-07-05

申请号：US15738422

申请日：2016-03-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaki SUGIYAMA ,  Hideaki MORIHANA ,  Hidetomo NAGAHARA ,  Yuji NAKABAYASHI ,  Hideki KINOSHITA

IPC: G01F1/66

CPC classification number: G01F1/662 ,  G01F1/668 ,  G01F15/00

Abstract: A measurement unit includes a fluid inlet to let a fluid flow in, a fluid outlet to let the fluid flow out, and a single flow path connecting the fluid inlet with the fluid outlet. The measurement unit further includes a plurality of partition boards and a measuring instrument. The plurality of partition boards are disposed along a current of the fluid and between facing side surfaces of the flow path. The plurality of partition boards define M flow path segments (where M is an integer of 2 or greater) between the facing side surfaces. The measuring instrument measures a flow rate of the fluid flowing through N successively adjacent flow path segments (where N is an integer of 1 or greater and less than M).