中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

15 records (took 0.008 seconds)

    FLOWMETER
    1.
    发明公开
    FLOWMETER 有权
    流量计

    公开(公告)号：EP2249132A4

    公开(公告)日：2012-01-04

    申请号：EP09718159

    申请日：2009-03-02

    Applicant: PANASONIC CORP

    Inventor： MIYATA HAJIME ,  KAMON KENICHI ,  ITOU YOUICHI ,  BESSYO DAISUKE ,  IWAMOTO RYUJI

    IPC: G01F3/22 ,  F17D5/06 ,  F23K5/00 ,  F23N5/18 ,  F23N5/24 ,  G01F15/06

    CPC classification number: F17D5/06 ,  F23N5/18 ,  F23N5/24 ,  F23N2025/04 ,  G01F7/005 ,  G01F15/068

    Abstract: Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path 102 is measured by a flow volume measurement unit 106, and pressure is measured by a pressure measurement unit 108. Measured flow data and measured pressure data are input to an analysis unit 112, to thus analyze following of a pressure change by a flow volume change. An amount of flow volume change responsive to an amount of pressure change of a predetermined level or more is classified into a plurality of ranges by means of a predetermined threshold value, and a following flow value change is determined on the basis of determination conditions of the respective ranges of amounts of flow volume changes.

    ULTRASONIC FLOWMETER
    4.
    发明公开
    ULTRASONIC FLOWMETER 审中-公开

    公开(公告)号：EP2351994A4

    公开(公告)日：2017-12-27

    申请号：EP09833199

    申请日：2009-12-16

    Applicant: PANASONIC CORP

    Inventor： MIYATA HAJIME ,  ITOU YOUICHI

    IPC: G01F1/66 ,  F15D1/02 ,  G01F1/00 ,  G01F15/00

    CPC classification number: G01F1/667 ,  F15D1/001 ,  G01F1/662 ,  G01F15/00

    Abstract: An ultrasonic flowmeter that measures flow velocity of a measured fluid by propagating ultrasonic waves through a measuring flow path with a rectangular cross section through which the measured fluid flows and the measured fluid that flows through the measuring flow path. The measuring flow path is provided with partition plates so that they are in parallel with the flow direction of the measured fluid. Simultaneously, the partition plates are placed in parallel with wall surfaces such that flow velocity distribution between opposing wall surfaces of the measuring flow path is more symmetrical with respect to the center of the flow direction of the measured fluid.

    ULTRASONIC FLOW-METER
    8.
    发明公开
    ULTRASONIC FLOW-METER 审中-公开
    ULTRASCHALLFLUSSMESSER

    公开(公告)号：EP2733471A4

    公开(公告)日：2014-07-16

    申请号：EP12811957

    申请日：2012-07-09

    Applicant: PANASONIC CORP

    Inventor： ADACHI AKIHISA ,  SATOU MASATO ,  WATANABE AOI ,  MIYATA HAJIME

    IPC: G01F1/66 ,  G01F5/00

    CPC classification number: G01F1/66 ,  G01F1/667 ,  G01F5/00

    Abstract: An ultrasonic flow-meter of the present invention includes a partition plate which partitions a passage of a target fluid into a measurement passage and a non-measurement passage, a pair of ultrasonic transducers which is disposed in the measurement passage, a measuring unit which measures a propagation time of an ultrasonic wave between the pair of ultrasonic transducers, and a calculating unit which calculates a flow rate of the target fluid. Further, the calculating unit has a computing unit which computes at least one of a flow velocity and a flow rate of the target fluid in the measurement passage based on the propagation time and an estimating unit which estimates the flow rate of the target fluid in the passage based on the flow velocity or the flow rate in the measurement passage. As a result, an ultrasonic flow-meter which highly accurately measures a target fluid by using a simple configuration can be realized.

    Abstract translation: 本发明的超声波流量计包括将目标流体的通道分隔成测量通道和非测量通道的隔板，设置在测量通道中的一对超声波换能器，测量单元，其测量 一对超声波换能器之间的超声波的传播时间和计算目标流体的流量的计算单元。 此外，计算单元具​​有计算单元，其基于传播时间来计算测量通道中的目标流体的流速和流量中的至少一个，以及估计单元，其估计目标流体的流速 基于测量通道中的流速或流量。 结果，可以实现使用简单的结构高精度地测量目标流体的超声波流量计。

    FLOW RATE MEASURING DEVICE
    9.
    发明公开
    FLOW RATE MEASURING DEVICE 审中-公开
    吞吐量测量装置

    公开(公告)号：EP2405242A4

    公开(公告)日：2013-07-31

    申请号：EP10748485

    申请日：2010-03-01

    Applicant: PANASONIC CORP

    Inventor： YOKOHATA MITSUO ,  IWAMOTO RYUJI ,  OOTANI TAKUHISA ,  UEKI KOUICHI ,  ASANO KAZUTAKA ,  MIYATA HAJIME ,  ITOU YOUICHI

    IPC: G01F3/22 ,  G01F1/66

    CPC classification number: G01F1/66 ,  F23N2025/06

    Abstract: The present invention provides a flow rate measuring device capable of simplifying calculation, reducing the amount of a memory required for the calculation, absorbing variations due to manual operation and depending on the state of ignition, and improving the accuracy of appliance identification by using a configuration in which the features of appliances are extracted. The flow rate measuring device is formed of a difference value conversion unit 112 for converting the difference values of the flow rate measured at constant time intervals by an ultrasonic flowmeter 104; an appliance feature extraction unit 214 for creating an appliance feature code string indicating the feature of each appliance by making comparison and judgment using the third last code, the second last code, the last code and the current code of the codes obtained at constant time intervals and by performing code deletion, etc.; and an identification unit 116 for performing appliance identification by comparing the appliance feature code string with an appliance inherent feature code string indicating the feature code string inherent in each appliance.

Patent Agency Ranking