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    • 1. 发明申请
    • MICROFLUIDIC DEVICE AND MICROTUBE THEREFOR
    • 微流控器件及其MICROTUBE
    • WO2009003002A1
    • 2008-12-31
    • PCT/US2008/068113
    • 2008-06-25
    • INTEGRATED SENSING SYSTEMS, INC.SPARKS, Douglas RayRILEY, DianeNAJAFI, Nader
    • SPARKS, Douglas RayRILEY, DianeNAJAFI, Nader
    • G01F1/84G01F1/76G01N27/06
    • G01F1/8472G01F1/8445
    • A microfluidic device for assessing properties of a fluid. The device utilizes a microtube (10) capable of different vibration modes for promoting certain performance and/or structural aspects of the device. The microtube (10) is supported by a base (12) so as to be spaced apart from a substrate surface (52). The microtube (10) has a peripheral portion (14) surrounding the base (12), arms (16) supporting the peripheral portion (14) from the base (12), and a continuous internal microchannel (18) having at least first and second microchannel portions (18). Each microchannel portion (18) defines a separate flow route, and each flow route originates at the base (12), continues through a portion of the peripheral portion (14), and returns to the base (12). The first and second microchannel portions (18) are fluidically connected to inlet and outlet ports (26, 32), respectively, within the base (12). Vibration of the microtube (10) is induced and sensed by driving and sensing elements (60A-B, 62A-B). Fluid properties are determined from outputs of the sensing elements (62A-B).
    • 用于评估流体性质的微流体装置。 该装置利用能够具有不同振动模式的微管(10)来促进装置的某些性能和/或结构方面。 微管(10)由基部(12)支撑,以便与衬底表面(52)间隔开。 微管(10)具有围绕基部(12)的周边部分(14),从基部(12)支撑周边部分(14)的臂(16)和连续的内部微通道(18),其具有至少第一和 第二微通道部分(18)。 每个微通道部分(18)限定单独的流动路径,并且每个流动路线起始于基部(12),继续通过周边部分(14)的一部分,并返回到基部(12)。 第一和第二微通道部分18分别在基部(12)内流体连接到入口端口(26,32)。 通过驱动和感测元件(60A-B,62A-B)感应和感测微管(10)的振动。 流体性质由感测元件(62A-B)的输出确定。
    • 4. 发明申请
    • SYSTEM AND METHOD OF ASSESSING A PROPERTY OF A FLOWING FLUID
    • 流动流体性质的评估系统及方法
    • WO2009076287A3
    • 2009-08-13
    • PCT/US2008085866
    • 2008-12-08
    • INTEGRATED SENSING SYSTEMS INCSPARKS DOUGLAS RAYSMITH RICHARD THAYRENAJAFI NADER
    • SPARKS DOUGLAS RAYSMITH RICHARD THAYRENAJAFI NADER
    • G01N33/00B81B7/00G01D21/02G01F17/00G01N27/00
    • G01F1/8445G01N9/002
    • A fluid sensing system and method for sensing properties of a flowing fluid. The system and method entail a microfluidic device (10) having a micromachined tube (14) supported above a substrate (12), a tube passage (20) within a freestanding portion (16) of the tube (14), an inlet (36a) and outlet (36b) in fluidic communication with the tube passage (20) and an exterior of the microfluidic device (10), elements (22) for vibrating the freestanding portion (16) of the tube (14), and elements (24) for sensing movement of the freestanding portion (16) of the tube (14) so as to measure the vibration frequency and/or deflection of the freestanding portion (16) and produce therefrom at least one output corresponding to a property of a fluid flowing through the tube passage (20). The system and method further entail placing the microfluidic device (10) in a flowing fluid so that a fraction of the fluid enters the tube passage (20), and processing the output of the device (10) to compute a property of the fluid.
    • 一种用于感测流动流体的性质的流体感测系统和方法。 该系统和方法需要一个微流体装置(10),该微流体装置(10)具有支撑在衬底(12)上方的微加工管(14),管(14)的独立部分(16)内的管通道(20),入口 )和出口(36b)与管通道(20)和微流体装置(10)的外部流体连通,用于振动管(14)的独立部分(16)的元件(22)和元件(24 ),用于感测所述管(14)的所述独立部分(16)的运动,以测量所述独立部分(16)的振动频率和/或偏转,并从其产生至少一个对应于流体流动性质的输出 通过管道(20)。 该系统和方法还需要将微流体装置(10)放置在流动的流体中,使得流体的一部分进入管通道(20),并且处理装置(10)的输出以计算流体的性质。
    • 5. 发明申请
    • CORIOLIS MASS FLOW CONTROLLER
    • CORIOLIS质量流量控制器
    • WO0034748A3
    • 2000-11-16
    • PCT/US9929072
    • 1999-12-07
    • EMERSON ELECTRIC CO
    • BARGER MICHAEL JDILLE JOSEPH CWHITELEY JEFFREY LSCOTT TIMOTHY W
    • G01F1/84G05D7/06
    • G05D7/0635G01F1/8404G01F1/8422G01F1/8427G01F1/8436G01F1/8445G01F1/8472
    • A Coriolis mass flow sensor includes a flow sensor tube, a drive device situated relative to the flow sensor tube so as to cause the flow sensor tube to vibrate, and pick off sensors situated relative to the flow sensor tube so as to measure the twist in the flow sensor tube due to Coriolis force. A capacitive pick off sensor is disclosed that includes at least one conductive plate connectable to a first voltage potential and adapted to be situated adjacent the flow sensor tube which is connected to a second voltage potential. The conductive plate is positioned relative to the flow sensor tube so as to define a gap therebetween. The capacitance between the conductive plate and the flow sensor tube varies due to the relative motion of the conductive plate and the flow sensor tube when the flow sensor tube is vibrated. Electromagnetic, electrostatic, acoustic, and/or piezoelectric drives may be used to vibrate the flow sensor tube. The Coriolis mass flow controller may further include an integrated flow control device adapted to receive fluid from the flow sensor tube and provide flow control.
    • 科里奥利质量流量传感器包括流量传感器管,相对于流量传感器管定位的驱动装置,以使流量传感器管振动,并且拾取相对于流量传感器管定位的传感器,以测量 由于科里奥利力的流量传感器管。 公开了一种电容式检测传感器,其包括至少一个导电板,该导电板可连接至第一电压电势并适于位于连接至第二电压电势的流量传感器管附近。 导电板相对于流量传感器管定位以在其间限定间隙。 当流量传感器管振动时,导电板和流量传感器管之间的电容由于导电板和流量传感器管的相对运动而变化。 可以使用电磁,静电,声学和/或压电驱动来振动流量传感器管。 科里奥利质量流量控制器可进一步包括集成流量控制装置,其适于接收来自流量传感器管的流体并提供流量控制。
    • 8. 发明申请
    • MEMS SENSOR ZU MESSUNG MINDESTENS EINER MESSGRÖSSE EINES FLUIDS
    • 用于测量流体的至少一个测量尺寸的MEMS传感器
    • WO2017071864A1
    • 2017-05-04
    • PCT/EP2016/071397
    • 2016-09-12
    • TRUEDYNE SENSORS AGENDRESS+HAUSER FLOWTEC AG
    • REITH, PatrickHUBER, ChristofFETH, Hagen
    • G01F1/84
    • G01F1/8445G01F1/8404G01F1/849G01F1/8495
    • Es ist ein MEMS-Sensor zur Messung mindestens einer Messgröße, insb. einer Dichte, eines Durchflusses und/oder einer Viskosität, eines strömenden Fluids, beschrieben, der mindestens einem mikrofluidischen Kanal (1, 21) mit mindestens einem zu Schwingungen anregbaren Kanalabschnitt (7, 7a, 27) aufweist, und eine Erregereinrichtung (E) zur Anregung einer Nutzschwingungsmode, bei der der Kanalabschnitt (7, 7a, 27) Schwingungen in einer vorgegebenen Schwingungsebene (x-y) ausführt, umfasst, der verbesserte Schwingungseigenschaften aufweist, die dadurch erzielt werden, dass der Kanalabschnitt (7, 7a, 27) aus einem anisotropen Werkstoff mit richtungsabhängiger Elastizität besteht, der räumlich derart ausgerichtet ist, dass ein für eine Steifigkeit des Kanalabschnitts (7, 7a, 27) gegenüber senkrecht zur Schwingungsebene (x-y) verlaufenden Auslenkungen des Kanalabschnitts (7, 7a, 27) maßgebliches Elastizitätsmodul des Werkstoffs größer als ein für eine Steifigkeit des Kanalabschnitts (7, 7a, 27) gegenüber in der Schwingungsebene (x-y) verlaufenden Auslenkungen des Kanalabschnitts (7, 7a, 27) maßgebliches Elastizitätsmodul ist.
    • 它是用于测量至少一个被测&OUML MEMS传感器;道路,尤其是一个流量和/或粘度BEAR T,A ST&OUML的密度;门登流体,如上所述,所述至少一个 微流体通道(1,21)配有用于激发Nutzschwingungsmode至少一个振动通道部分(7,7A,27),和激励装置(e)中,其中,所述通道部分(7,7A,27)以预定的振动水平的振动 (XY)执行导航使用HRT,其包括具有被这样实现在改善振动性质具有方向BEAR ngiger弹性&AUML各向异性材料的通道部分(7,7A,27); T存在时,RÄ在空间上被定向成 该A F导航用途r为信道部分的刚性(7,7A,27)防止过垂直于振动平面(XY)的信道部的延伸偏转(7,7A,27)马道gebliches弹性BEAR tsmodul的 材料GRö道路它作为延伸的通道段的偏转振荡平面(xy)A F OVER(7,7A,27)毫安道路R针对导航用途gebliches沟道部(7,7A,27)弹性BEAR是tsmodul的刚性。

    • 10. 发明申请
    • CORIOLIS MASS FLOW CONTROLLER
    • CORIOLIS质量流量控制器
    • WO0034748A9
    • 2001-05-25
    • PCT/US9929072
    • 1999-12-07
    • EMERSON ELECTRIC CO
    • BARGER MICHAEL JDILLE JOSEPH CWHITELEY JEFFREY LSCOTT TIMOTHY W
    • G01F1/84G05D7/06
    • G05D7/0635G01F1/8404G01F1/8422G01F1/8427G01F1/8436G01F1/8445G01F1/8472
    • A Coriolis mass flow sensor includes a flow sensor tube, a drive device situated relative to the flow sensor tube so as to cause the flow sensor tube to vibrate, and pick off sensors situated relative to the flow sensor tube so as to measure the twist in the flow sensor tube due to Coriolis force. A capacitive pick off sensor is disclosed that includes at least one conductive plate connectable to a first voltage potential and adapted to be situated adjacent the flow sensor tube which is connected to a second voltage potential. The conductive plate is positioned relative to the flow sensor tube so as to define a gap therebetween. The capacitance between the conductive plate and the flow sensor tube varies due to the relative motion of the conductive plate and the flow sensor tube when the flow sensor tube is vibrated. Electromagnetic, electrostatic, acoustic, and/or piezoelectric drives may be used to vibrate the flow sensor tube. The Coriolis mass flow controller may further include an integrated flow control device adapted to receive fluid from the flow sensor tube and provide flow control.
    • 科里奥利质量流量传感器包括流量传感器管,相对于流量传感器管定位的驱动装置,以使流量传感器管振动,并且拾取相对于流量传感器管定位的传感器,以便测量扭转 流量传感器管由于科里奥利力。 公开了一种电容式拾取传感器,其包括可连接到第一电压电位的至少一个导电板,并且适于邻近连接到第二电压电位的流量传感器管。 导电板相对于流量传感器管定位,以便在它们之间形成间隙。 导电板和流量传感器管之间的电容由于当流量传感器管振动时导电板和流量传感器管的相对运动而变化。 可以使用电磁,静电,声学和/或压电驱动来振动流量传感器管。 科里奥利质量流量控制器还可以包括适于从流量传感器管接收流体并提供流量控制的集成流量控制装置。