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    Water quality meter and water quality monitoring system
    2.
    发明授权
    Water quality meter and water quality monitoring system 有权
    水质仪表和水质监测系统

    公开(公告)号：US06398930B2

    公开(公告)日：2002-06-04

    申请号：US09828946

    申请日：2001-04-10

    申请人： Masao Fukunaga ,  Tamio Ishihara ,  Koji Saito ,  Katsutoshi Yamada ,  Hideo Enoki ,  Sadao Mori ,  Ryo Miyake ,  Takao Terayama ,  Masatoshi Kanamaru

    发明人： Masao Fukunaga ,  Tamio Ishihara ,  Koji Saito ,  Katsutoshi Yamada ,  Hideo Enoki ,  Sadao Mori ,  Ryo Miyake ,  Takao Terayama ,  Masatoshi Kanamaru

    IPC分类号： G01N2700

    CPC分类号： C02F1/008 ,  C02F2103/02 ,  C02F2201/008 ,  C02F2201/009 ,  C02F2209/11 ,  C02F2209/29 ,  C02F2209/40 ,  G01N33/1893 ,  Y02A20/212

    摘要： A water quality meter is composed of a plurality of analyzing units for analyzing water samples introduced from a water distribution pipe, each analyzing unit including a reagent mixing cell and a measuring cell, and a liquid introducing unit integrated with the analyzing units, which is composed of a single member in which a plurality of fluid flows paths for feeding various types of liquid including the water sample into the analyzing unit are formed. Furthermore, the cells and the plurality of three-dimensional fluid flow paths formed in the single member are fabricated by a micro-fabrication technique using photo-curing resin. In one embodiment, a photometer is situated in the flow path in at least one analyzing unit for measuring absorbency of the liquid. In another embodiment, a pair of electrodes, for measuring electric conductivity or pH, is disposed in a measurement flow path in at least one of the analyzing units.

    摘要翻译： 水质计由多个用于分析从配水管引入的水样的分析单元构成，每个分析单元包括试剂混合室和测量池，以及与分析单元一体化的液体导入单元，其组成 其中形成有多个流体流动路径的单个构件，用于将包括水样本的各种类型的液体进料到分析单元中。 此外，通过使用光固化树脂的微制造技术来制造在单个构件中形成的电池和多个三维流体流动路径。 在一个实施例中，光度计位于至少一个分析单元中的流路中，用于测量液体的吸收性。 在另一个实施例中，用于测量电导率或pH的一对电极设置在至少一个分析单元中的测量流路中。

    Water quality management system
    4.
    发明授权
    Water quality management system 有权
    水质管理体系

    公开(公告)号：US06245224B1

    公开(公告)日：2001-06-12

    申请号：US09397733

    申请日：1999-09-17

    申请人： Hideo Enoki ,  Sadao Mori ,  Masao Fukunaga ,  Tamio Ishihara

    发明人： Hideo Enoki ,  Sadao Mori ,  Masao Fukunaga ,  Tamio Ishihara

    IPC分类号： B01D1712

    CPC分类号： C02F1/76 ,  C02F1/001 ,  C02F1/008 ,  C02F1/283 ,  C02F2209/001 ,  C02F2209/003 ,  C02F2209/11 ,  C02F2209/29 ,  C02F2209/40 ,  E03B1/02 ,  Y10T137/2509

    摘要： A water quality management system for managing the water quality in a water supply network having water pipe lines running from the purification plant to consumers' faucets to maintain the water quality at the consumers at the terminals of the network at an appropriate level. The water quality monitors for measuring the quality of water in the pipe lines are installed in the small-pipe water distribution network branching from the water distribution main pipe network and running toward the consumers. The water distribution facility for improving the water quality is installed at the base point of the small-pipe water distribution network. The water quality in the small-pipe water distribution network is managed based on the signals from the water quality monitors.

    摘要翻译： 一个水质管理系统，用于管理供水网络的水质，水管线从净化厂运行到消费者的水龙头，以维持网络终端处的消费者的水质。 用于测量管线水质的水质监测器安装在从配水主管网分支的小管配水网络中，向消费者运行。 用于改善水质的配水设施安装在小型配水网络的基点。 基于水质监测仪的信号管理小型配水网络的水质。

    Electromagnetic flow meter
    5.
    发明授权
    Electromagnetic flow meter 失效
    电磁流量计

    公开(公告)号：US5469746A

    公开(公告)日：1995-11-28

    申请号：US215339

    申请日：1994-03-21

    申请人： Masao Fukunaga ,  Yutaka Sakurai ,  Kouji Saito ,  Tamio Ishihara

    发明人： Masao Fukunaga ,  Yutaka Sakurai ,  Kouji Saito ,  Tamio Ishihara

    IPC分类号： G01F1/60 ,  G01F15/06 ,  G08C19/02 ,  G01F1/00

    CPC分类号： G01F15/063 ,  G01F1/60 ,  G08C19/02

    摘要： An electromagnetic flow meter for industries includes a transducer and a signal processor provided separately from the transducer. The transducer having an exciting circuit, an amplifying and calculating part and a transmitting part outputs an analog flow rate signal and digital signals which are superimposed to the an analog flow rate signal to the signal processor. The analog signal sent to the signal processor is passed through the signal processor without receiving any signal processing and the digital signals are sent into the transducer or taken into the signal processor through alternating current coupling means. The data transmission is diagnosed by checking the conformity between the data stored in the signal sending part and the received data. Data set in a data setting part provided in the signal processor are sent to the transducer through a transmitting cable in which the flow rate data are also transmitted.

    摘要翻译： 用于工业的电磁流量计包括与换能器分开设置的换能器和信号处理器。 具有激励电路的传感器，放大和计算部分以及发送部分将模拟流量信号和与模拟流量信号叠加的数字信号输出到信号处理器。 发送到信号处理器的模拟信号通过信号处理器而不接收任何信号处理，并且数字信号被发送到换能器中或通过交流耦合装置进入信号处理器。 通过检查存储在信号发送部分中的数据与接收到的数据之间的一致性来诊断数据传输。 在信号处理器中提供的数据设定部分中设置的数据通过发送电缆发送到传感器，传输电缆也传送流量数据。

    Electromagnetic flow meter
    6.
    发明授权
    Electromagnetic flow meter 失效
    电磁流量计

    公开(公告)号：US5458003A

    公开(公告)日：1995-10-17

    申请号：US983060

    申请日：1992-11-30

    申请人： Tamio Ishihara ,  Yutaka Sakurai ,  Masao Fukunaga ,  Shigeo Nishino ,  Souzo Fujimoto

    发明人： Tamio Ishihara ,  Yutaka Sakurai ,  Masao Fukunaga ,  Shigeo Nishino ,  Souzo Fujimoto

    IPC分类号： G01F1/58 ,  G01P5/08

    CPC分类号： G01F1/58 ,  G01P5/086

    摘要： An electromagnetic flow meter comprises a ceramic measuring pipe formed into a straight cylinder through which fluid to be measured flows, electromagnetic field generating device disposed adjacent to a central portion of an outer surface of the central portion of the ceramic measuring pipe for generating an electromagnetic field into a radial direction of the ceramic measuring pipe, electrodes for detecting an electric potential generated in the fluid, a case which accommodates the ceramic measuring pipe, the electromagnetic field generating device and the electrodes, and sealing members which are disposed between inner surfaces of the flanges of the case and ends of outer circumference of the ceramic measuring pipe. The case has a length longer than that of the ceramic measuring pipe and flanges at both ends thereof. Inner diameters of the flanges are slightly larger than an outer diameter of the ceramic measuring pipe. Portions of the sealing members outwardly project over the end surfaces of the flanges of the case.

    摘要翻译： 一种电磁流量计，其特征在于，包括：陶瓷测量管，其形成为待测量流体的直圆筒;电磁场产生装置，邻近陶瓷测量管的中心部分的外表面的中心部分设置，用于产生电磁场 陶瓷测量管的径向方向，用于检测流体中产生的电位的电极，容纳陶瓷测量管，电磁场产生装置和电极的壳体，以及设置在陶瓷测量管的内表面之间的密封构件 陶瓷测量管外壳法兰和外周端。 壳体的长度比陶瓷测量管的长度长，两端的凸缘长。 凸缘的内径略大于陶瓷测量管的外径。 密封构件的一部分向外突出在壳体的凸缘的端表面上。

    Electromagnetic flowmeter
    7.
    发明授权
    Electromagnetic flowmeter 失效
    电磁流量计

    公开(公告)号：US5307687A

    公开(公告)日：1994-05-03

    申请号：US890245

    申请日：1992-05-29

    申请人： Masatsugu Arai ,  Akiomi Kohno ,  Kazuaki Yokoi ,  Yuuji Yoshitomi ,  Yutaka Sakurai ,  Tamio Ishihara

    发明人： Masatsugu Arai ,  Akiomi Kohno ,  Kazuaki Yokoi ,  Yuuji Yoshitomi ,  Yutaka Sakurai ,  Tamio Ishihara

    IPC分类号： G01F1/58

    CPC分类号： G01F1/584 ,  G01F1/58

    摘要： An electromagnetic flowmeter for measuring the flow rate of a fluid. The flowmeter has a measuring tube made of ceramics and defining a fluid passage therein for the fluid, electrodes having ends exposed to an interior of the measuring tube through holes which are formed in a wall of the measuring tube, a magnetic field generating device disposed around the electrodes, and a case encasing the measuring tube, the electrodes and the magnetic field generating means. A ratio t/R between a wall thickness t and a mean radius R of the measuring tube is determined such that stress generated in the measuring tube by the fluid in the measuring tube does not exceed the rupture stress of the measuring tube. The measuring tube can have flanges on both axial ends thereof, a radial height of the flange from an outer surface of the measuring tube is not greater than the wall thickness of the tube when the tube is made of Al.sub.2 O.sub.3 and not greater than a value three times as large as the tube wall thickness when the tube is made of Si.sub.3 N.sub.4. The electrodes may be made from Ni or an Ni alloy and are secured to the measuring tube by press-fitting into holes formed in the tube wall or by jointing. The electromagnetic flowmeter thus obtained exhibits high strength and reliability and high degree of gas-tightness in the tube portions around the electrodes.

    摘要翻译： 一种用于测量流体流量的电磁流量计。 流量计具有由陶瓷制成的测量管，用于流体的流体通道，具有暴露于测量管内部的端部的电极，通孔形成在测量管的壁中，磁场产生装置设置在 电极和封装测量管的壳体，电极和磁场产生装置。 确定测量管的壁厚t和平均半径R之间的比率t / R，使得由测量管中的流体在测量管中产生的应力不超过测量管的破裂应力。 测量管在其两个轴向端都可以具有凸缘，当管由Al2O3制成并且不大于三值时，法兰从测量管的外表面的径向高度不大于管的壁厚 当管由Si 3 N 4制成时，管壁厚度的倍数。 电极可以由Ni或Ni合金制成，并通过压配合到形成在管壁中的孔或通过接合而固定到测量管。 由此获得的电磁流量计在电极周围的管部显示出高的强度和可靠性以及高气密性。

    Capacitance type electromagnetic flowmeter
    9.
    发明授权
    Capacitance type electromagnetic flowmeter 失效
    电容式电磁流量计

    公开(公告)号：US5526698A

    公开(公告)日：1996-06-18

    申请号：US127831

    申请日：1993-09-28

    申请人： Yutaka Sakurai ,  Tamio Ishihara

    发明人： Yutaka Sakurai ,  Tamio Ishihara

    IPC分类号： G01F1/58

    CPC分类号： G01F1/588

    摘要： A capacitance type electromagnetic flowmeter whose output is relatively free from fluctuations caused by external vibrations has a flow tube supported in a casing member by means of members having elasticity and viscosity (e.g., O-rings). Magnetic parts such as coils and a core are fixed to the casing member so as to define a space therewith, and protective rings are kept liquid-tight with respect to the flow tube by O-rings interposed therebetween. The equivalent mass of the flowmeter section vibrating integrally with the flow tube is reduced to increase the resonance frequency. Further, since the flow tube is insulated from vibrations of the protective rings, the flow is less subject to vibrations, thereby decreasing fluctuations in output due to external vibrations.

    摘要翻译： 其输出相对不受外部振动引起的波动的电容型电磁流量计具有通过具有弹性和粘度的构件（例如，O形圈）支撑在壳体构件中的流管。 诸如线圈和芯之类的磁性部件被固定到壳体部件上，以便与其形成一个空间，并且保护环相对于流动管通过其间的O形环保持液密。 与流量管整体振动的流量计部分的等效质量减小以增加共振频率。 此外，由于流管与保护环的振动绝缘，所以流动较少受到振动，从而减少由于外部振动引起的输出波动。