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公开(公告)号：US20160146650A1
公开(公告)日：2016-05-26
申请号：US14898647
申请日：2014-06-13
Inventor： Masato SATOU , Hidetomo NAGAHARA , Yuji FUJII
IPC: G01F1/66
Abstract: An ultrasonic flow meter device comprises a fluid passage forming section including a measurement fluid passage, and an opening facing a bottom surface of the measurement fluid passage; a pair of ultrasonic transducers which transmit and receive an ultrasonic wave via the opening; a partition plate which partitions the measurement fluid passage; and an identification section provided on an end surface of the partition plate and used to identify an obverse surface and a reverse surface of the partition plate.
Abstract translation: 超声波流量计装置包括：流体通道形成部分，包括测量流体通道;以及面向测量流体通道的底表面的开口; 一对超声波换能器，通过该开口传送和接收超声波; 隔离测量流体通道的隔板; 以及识别部，其设置在所述隔板的端面上，用于识别所述隔板的正面和反面。
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公开(公告)号：US20150338255A1
公开(公告)日：2015-11-26
申请号：US14410410
申请日：2013-06-26
Inventor： Yasuo KOBA , Kouichi TAKEMURA , Aoi WATANABE , Yuji FUJII
IPC: G01F1/66
CPC classification number: G01F1/667
Abstract: A flow meter device of a fluid includes a time difference measuring means which measures time for a received wave to reach a zero cross point after the received wave exceeds a reference voltage, after transmission of a signal, and a reference voltage setting means which changes the reference voltage from a minimum value to a maximum value, recognizes peak voltages of waves of the received wave based on a plurality of inflection points at which a time difference measured by the time difference measuring means when the reference voltage is changed from the minimum voltage to the maximum voltage, is significantly changed, and automatically sets the reference voltage to a point between peak voltages of particular two waves based on a ratio between the peak voltages, and the reference voltage is changed from a voltage which is close to the peak voltages of the two waves and the peak voltages are newly recognized, when the reference voltage is newly set.
Abstract translation: 流体的流量计装置包括：时间差测量装置，其在发送信号之后测量在接收波超过参考电压之后接收波到达零交叉点的时间;以及参考电压设置装置，其改变 参考电压从最小值到最大值，基于多个拐点，识别接收波的波的峰值电压，在该拐点处，当基准电压从最小电压变化到由时间差测量装置测量的时间差时， 最大电压显着变化，并且基于峰值电压之间的比例，将参考电压自动设置为特定两个波峰值电压之间的点，并且参考电压从接近峰值电压 当新设定基准电压时，新识别出两波和峰值电压。
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公开(公告)号：US20150323365A1
公开(公告)日：2015-11-12
申请号：US14410946
申请日：2013-06-28
Inventor： Akihisa ADACHI , Yuji FUJII , Yuji NAKABAYASHI , Hirokazu GOTOU , Yukio SAKAGUCHI , Aoi WATANABE , Yasuharu KAWANO
CPC classification number: G01F15/005 , G01F1/00 , G01F5/00 , G01F7/00 , G01F15/07
Abstract: A flow meter device of the present invention comprises plural fluid passages which are provided between an inlet section into which a fluid flows and an outlet section from which the fluid flows out, and through which the fluid flows; flow value measuring units installed in the plural fluid passages, respectively, and configured to measure flow values of the fluid flowing through the fluid passages; and a control unit configured to determine whether or not to cause one or more of the flow value measuring units to stop a measuring operation of the flow value based on the flow values measured by the flow value measuring units, and whether or not to cause the one or more of the flow value measuring units to resume the measuring operation of the flow value, based on the flow value measured by the flow value measuring unit as a monitoring measuring unit which is other than the one or more of the flow value measuring units and is activated to perform the measuring operation of the flow value.
Abstract translation: 本发明的流量计装置包括多个流体通道，其设置在流体流入的入口部分和流体流出的出口部分之间，流体流过该流体通道; 流量值测量单元分别安装在多个流体通道中，并且被配置为测量流过流体通道的流体的流量值; 以及控制单元，被配置为基于由流量值测量单元测量的流量值来确定是否使一个或多个流量值测量单元停止流量值的测量操作，以及是否使 一个或多个流量值测量单元，用于基于由流量值测量单元测量的流量值作为监测测量单元，其不同于一个或多个流量值测量单元，以恢复流量值的测量操作 并被激活以执行流量值的测量操作。
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公开(公告)号：US20170343398A1
公开(公告)日：2017-11-30
申请号：US15537182
申请日：2016-03-11
Inventor： Hiroshi NAKAI , Kenji YASUDA , Masato SATOU , Hideaki MORIHANA , Yuji FUJII
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.
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