High-precision vortex flow meter
    11.
    发明授权
    High-precision vortex flow meter 有权
    高精度涡流流量计

    公开(公告)号:US07487686B2

    公开(公告)日:2009-02-10

    申请号:US11790702

    申请日:2007-04-27

    CPC classification number: G01F1/3218 G01F1/3209 G01F15/024 G01F25/0007

    Abstract: A high-precision vortex flow meter includes a blunt body having a predetermined dimension and being arranged inside a fluid channel to serve as a vortex shedder. The vortex flow meter also includes a temperature detecting device for detecting the vortex shedder temperature and a temperature control element for adjusting the vortex shedder temperature. A frequency measuring device is arranged in the downstream section of the blunt body for detecting the vortex shedding frequency. From the measured temperatures of the upstream fluid flow and that of the blunt body, an effective temperature and a temperature ratio are calculated. The kinematic viscosity of the fluid is looked up from database. By using the relationship between the Strouhal number and Reynolds number, the fluid flow rate is calculated. By employing different blunt body temperature, the measurement range of the flow meter can be broadly extended.

    Abstract translation: 高精度涡流流量计包括具有预定尺寸的钝体并且布置在流体通道内用作涡流脱落器。 涡流流量计还包括用于检测涡流脱落器温度的温度检测装置和用于调节涡流脱落器温度的温度控制元件。 在钝体的下游部分设置有频率测量装置,用于检测涡流脱落频率。 从测量的上游流体的温度和钝体的温度,计算有效的温度和温度比。 从数据库中查找流体的运动粘度。 通过使用Strouhal数和雷诺数之间的关系,计算流体流量。 通过采用不同的体温,可以大幅度地扩展流量计的测量范围。

    MEMBRANE MICROPUMP
    13.
    发明申请
    MEMBRANE MICROPUMP 有权
    膜微胶囊

    公开(公告)号:US20110158832A1

    公开(公告)日:2011-06-30

    申请号:US12787306

    申请日:2010-05-25

    CPC classification number: F04B43/043

    Abstract: A membrane micropump includes a vibration chamber, at least one flow guide, at least one fluid inlet, at least one fluid outlet, at least one inlet rectifier, at least one outlet rectifier, a vibration membrane and an actuator. The vibration chamber includes at least one chamber inlet and at least one chamber outlet. The flow guide can be connected to the chamber inlet, the vibration chamber, the chamber outlet or in the vibration chamber, or it can have more pairs to enhance the effects. The inlet rectifier connects the chamber inlet to the fluid inlet. The outlet rectifier connects the chamber outlet to the fluid outlet. The vibration membrane is disposed on the vibration chamber. The actuator is connected to the vibration membrane to reciprocate the vibration membrane, enabling fluid to flow into the vibration chamber via the fluid inlet and flow out thereof via the fluid outlet.

    Abstract translation: 膜微泵包括振动室,至少一个流动引导件,至少一个流体入口,至少一个流体出口,至少一个入口整流器,至少一个出口整流器,振动膜和致动器。 振动室包括至少一个室入口和至少一个室出口。 流动引导件可以连接到腔室入口,振动室,腔室出口或振动室,或者可以具有更多的对来增强效果。 入口整流器将室入口连接到流体入口。 出口整流器将室出口连接到流体出口。 振动膜设置在振动室上。 致动器连接到振动膜以使振动膜往复运动,使得流体能够经由流体入口流入振动室并经由流体出口流出。

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