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    • 3. 发明申请
    • 具有间隙传动机构的电子计数装置的水表
    • WO2009036600A1
    • 2009-03-26
    • PCT/CN2007/002773
    • 2007-09-20
    • 周岳建
    • 周岳建
    • G01F15/06G01F1/075G06M1/06
    • G01F1/1155G01F15/07G06M1/27G06M3/00
    • A water meter having an electrical counter with an intermittently driving mechanism comprises of a meter case (1). An input pipe (2) and an output pipe (3) are provided on the lower part of the case, and a rotor (5) is provided within it. The output shaft of the rotor is magnetically coupled to the second intermediate gearing via the first intermediate gearing. The second intermediate gearing is connected with the driving mechanism of the electrical counter. Said driving mechanism of the electrical counter is composed of plural actuating elements and actuated elements represented various decades. Furthermore the actuating element and actuated element of the same decade are jointed to a whole unit. Both the actuating element and actuated element of the lowest decade counter device are the first stage gear of the second intermediate gearing. The actuated element of the next lower decade counter device is the final stage gear of the second intermediate gearing. The highest decade counter device only has an actuated element. The plural actuating elements and actuated elements whole or partially are mounted with resistor plates and a reading device can detect the resistance value. Compared with the prior art , the water meter according to present invention can reduce the driving torque, improve the meter accuracy and lower the cost.
    • 4. 发明申请
    • SYSTEM AND METHOD FOR PROCESS MEASUREMENT
    • 用于过程测量的系统和方法
    • WO2006044229A2
    • 2006-04-27
    • PCT/US2005036028
    • 2005-10-07
    • DRESSER INCGUTIERREZ FRANCISCO M
    • GUTIERREZ FRANCISCO M
    • G01D5/2013G01F1/0755G01F1/1155
    • Process measurement may be achieved by systems and techniques generating output signals based on the measured process. In certain implementations, process measurement systems and techniques may include the ability to generate a magnetic field (504) and successively change the orientation of the magnetic field (508). The systems and techniques may also include the ability to sense the presence of at least a first orientation of the magnetic field with a magnetic field sensor including a conductor and at least two Wiegand-effect conductors as the magnetic field orientation is changed (512) and to generate an electrical pulse in the conductor with each Wiegand-effect conductor when the first orientation of the magnetic field is sensed (516).
    • 过程测量可以通过基于测量过程产生输出信号的系统和技术实现。 在某些实施方案中,过程测量系统和技术可以包括产生磁场(504)并且连续地改变磁场(508)的取向的能力。 该系统和技术还可以包括当磁场取向改变(512)时,利用包括导体的磁场传感器和至少两个韦根效应导体来感测磁场的至少第一取向的存在的能力,以及 当感测到磁场的第一取向时(516),在每个Wiegand效应导体的导体中产生电脉冲(516)。
    • 8. 发明授权
    • Turbine meter with a rotor having accuracy enhancing rotor blades
    • 具有转子精度提高的转子叶片的涡轮表
    • US6065352A
    • 2000-05-23
    • US335827
    • 1999-06-18
    • William M. Schieber
    • William M. Schieber
    • G01F1/10G01F1/115G01F1/12G01F1/05B63H1/26
    • G01F1/10G01F1/1155G01F1/12
    • A turbine meter used for measuring the volume of fluid flowing through a conduit includes an elongated housing having an upstream end and a downstream end and a rotor mounted within the housing. A plurality of turbine blades are mounted on the rotor at an angle with respect to the axis of rotation of the rotor which causes each of the rotor blades to have a high pressure surface which faces toward the upstream end of the housing. Each of the rotor blades also has a trailing edge closest to the downstream end of the housing. An extension is included at approximately the trailing edge on the high pressure surface of at least one and preferably a plurality of the rotor blades. The extension has a length and forms an angle with respect to the high pressure surface of the rotor blade on which it is mounted which causes the percentage of error of the accuracy of the meter across a chosen operating range of the meter to be within predetermined limits.
    • 用于测量流过管道的流体体积的涡轮仪包括具有上游端和下游端的细长壳体和安装在壳体内的转子。 多个涡轮机叶片相对于转子的旋转轴线成角度地安装在转子上,这使得每个转子叶片具有面向壳体的上游端的高压表面。 每个转子叶片还具有最靠近壳体下游端的后缘。 延伸件包括在至少一个且优选多个转子叶片的高压表面的大致后缘处。 该延伸部具有长度并且相对于其上安装的转子叶片的高压表面形成一个角度,这导致在仪表的所选操作范围内仪表的精度的误差百分比在预定限度内 。