Method of measuring pressure by means of a pressure gauge having a resonant element
    1.
    发明授权
    Method of measuring pressure by means of a pressure gauge having a resonant element 失效
    通过具有共振元件的压力计测量压力的方法

    公开(公告)号:US06615664B1

    公开(公告)日:2003-09-09

    申请号:US09958419

    申请日:2002-01-22

    CPC classification number: G01L9/002 G01L9/0019

    Abstract: The invention relates to a method of measuring pressure in which an evacuated capsule (1) containing a resonant element (5) is placed in the fluid whose pressure is to be measured, a vibration characteristic of the element is measured, and the pressure is deduced from said characteristic. A resonant element is used which, during measurement, is to be found in a stress state that is close to buckling. For this purpose, it is possible to use heater means for heating the element and servo-controlled so as to keep the frequency of vibration thereof constant. The resonant element can be made of silicon. The invention is particularly applicable to oil wells.

    Abstract translation: 本发明涉及一种测量压力的方法,其中将含有共振元件(5)的抽真空的胶囊(1)放置在要测量其压力的流体中,测量元件的振动特性,并推导出压力 从所述特征。 使用谐振元件,其在测量期间被发现在接近屈曲的应力状态。 为此,可以使用用于加热元件并进行伺服控制的加热器装置,以保持其振动频率恒定。 谐振元件可以由硅制成。 本发明特别适用于油井。

    Flow restriction insert for differential pressure measurement
    2.
    发明授权
    Flow restriction insert for differential pressure measurement 失效
    用于差压测量的流量限制插入件

    公开(公告)号:US08061219B2

    公开(公告)日:2011-11-22

    申请号:US12715478

    申请日:2010-03-02

    CPC classification number: E21B47/10 G01F1/44

    Abstract: A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure conduit is locatable in the wellbore, defines an internal bore, and is adapted to include a restriction having a cross-sectional area to increase the velocity of fluid flowing through the differential pressure conduit to create a differential pressure. The differential pressure conduit defining first and second pressure measuring stations axially spaced along the differential pressure conduit. The flow restrictor insert is located in the restriction to reduce the cross-sectional area of the restriction. The flow restrictor insert defines an internal bore having a cross-sectional area less than the cross-sectional area of the restriction. The flow restrictor insert also has a pressure measuring port aligned with the second pressure measuring station. The differential pressure measurement device has at least one pressure sensor for detecting the pressure at the first pressure station, and for detecting the pressure at the second pressure station to generate a signal indicative of the flow rate of the fluid.

    Abstract translation: 公开了一种用于测量流过井眼的流体的流量的流量装置。 流量装置包括差压管道,限流器插入件和差压测量装置。 差压管可定位在井孔中,限定内孔,并且适于包括具有横截面面积的限制件,以增加流过差压管道的流体的速度以产生差压。 所述差压管道限定沿差压管道轴向间隔开的第一和第二压力测量站。 限流器插入件位于限制件中以减小限制的横截面积。 限流器插入件限定了具有小于限制件的横截面面积的横截面面积的内孔。 限流器插入件还具有与第二压力测量站对准的压力测量端口。 差压测量装置具有用于检测第一压力站处的压力的至少一个压力传感器,并且用于检测第二压力站处的压力以产生指示流体流量的信号。

    FLOW RESTRICTION INSERT FOR DIFFERENTIAL PRESSURE MEASUREMENT
    3.
    发明申请
    FLOW RESTRICTION INSERT FOR DIFFERENTIAL PRESSURE MEASUREMENT 失效
    流量限制插入用于差压测量

    公开(公告)号:US20110214498A1

    公开(公告)日:2011-09-08

    申请号:US12715478

    申请日:2010-03-02

    CPC classification number: E21B47/10 G01F1/44

    Abstract: A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure conduit is locatable in the wellbore, defines an internal bore, and is adapted to include a restriction having a cross-sectional area to increase the velocity of fluid flowing through the differential pressure conduit to create a differential pressure. The differential pressure conduit defining first and second pressure measuring stations axially spaced along the differential pressure conduit. The flow restrictor insert is located in the restriction to reduce the cross-sectional area of the restriction. The flow restrictor insert defines an internal bore having a cross-sectional area less than the cross-sectional area of the restriction. The flow restrictor insert also has a pressure measuring port aligned with the second pressure measuring station. The differential pressure measurement device has at least one pressure sensor for detecting the pressure at the first pressure station, and for detecting the pressure at the second pressure station to generate a signal indicative of the flow rate of the fluid.

    Abstract translation: 公开了一种用于测量流过井眼的流体的流量的流量装置。 流量装置包括差压管道,限流器插入件和差压测量装置。 差压管可定位在井孔中,限定内孔,并且适于包括具有横截面面积的限制件,以增加流过差压管道的流体的速度以产生差压。 所述差压管道限定沿差压管道轴向间隔开的第一和第二压力测量站。 限流器插入件位于限制件中以减小限制的横截面积。 限流器插入件限定了具有小于限制件的横截面面积的横截面面积的内孔。 限流器插入件还具有与第二压力测量站对准的压力测量端口。 差压测量装置具有用于检测第一压力站处的压力的至少一个压力传感器,并且用于检测第二压力站处的压力以产生指示流体流量的信号。

    APPARATUS AND METHOD FOR OPTICALLY DETERMINING THE PRESENCE OF CARBON DIOXIDE
    4.
    发明申请
    APPARATUS AND METHOD FOR OPTICALLY DETERMINING THE PRESENCE OF CARBON DIOXIDE 审中-公开
    用于光学确定二氧化碳存在的装置和方法

    公开(公告)号:US20090302221A1

    公开(公告)日:2009-12-10

    申请号:US12441611

    申请日:2007-08-24

    CPC classification number: G01N21/552 G01N21/3504 G01N2021/8528

    Abstract: Apparatus for optically determining the presence of carbon dioxide within a fluid, said apparatus comprising:—a light emitting source, an optical sensing probe in contact with the fluid to analyze; optical light transmitting means in order to convey the light emitted from the light emitting source to the optical sensing probe and the light reflected by the optical sensing probe to means to discriminate between wavelengths of light beams reflected by the optical sensing probe;—means to convert wavelengths discriminated light beams into measurement data indicating presence of carbon dioxide within the fluid, wherein the optical sensing probe comprises a tip working as attenuated total reflection (ATR) absorber within the infrared wavelength.

    Abstract translation: 用于光学地确定流体内二氧化碳的存在的装置,所述装置包括: - 发光源,与要分析的流体接触的光学传感探针; 光传输装置,以将从发光源发射的光传送到光学传感探针和由光学感测探针反射的光,以便鉴别由光学传感探针反射的光束的波长; - 用于转换 波长将光束区分为指示流体内二氧化碳存在的测量数据,其中光学传感探头包括在红外波长内用作衰减全反射(ATR)吸收体的尖端。

    Density and viscosity sensor
    5.
    发明授权
    Density and viscosity sensor 有权
    密度和粘度传感器

    公开(公告)号:US07958772B2

    公开(公告)日:2011-06-14

    申请号:US11817404

    申请日:2006-02-24

    CPC classification number: G01N9/002 G01N11/16

    Abstract: A density and viscosity sensor 1 for measuring density and viscosity of fluid F, the sensor 1 comprising a resonating element 3, 3A, 3B, 3C, 3D arranged to be immersed in the fluid F, an actuating/detecting element 4A, 4B coupled to the resonating element, and a connector 7 for coupling to the actuating/detecting element 4A, 4B. The sensor 1 further comprises a housing 2 defining a chamber 8A isolated from the fluid F, the housing 2 comprising an area of reduced thickness defining a membrane 9 separating the chamber 8A from the fluid F. The actuating/detecting element 4A, 4B is positioned within the chamber so as to be isolated from the fluid F and mechanically coupled to the membrane 9. The resonating element 3, 3A, 3B, 3C, 3D arranged to be immersed in the fluid F is mechanically coupled to the membrane 9. The membrane 9 has a thickness enabling transfer of mechanical vibration between the actuating/detecting element 4A, 4B and the resonating element 3, 3A, 3B, 3C, 3D.

    Abstract translation: 用于测量流体F的密度和粘度的密度和粘度传感器1,传感器1包括布置成浸没在流体F中的谐振元件3,3A,3B,3C,3D,耦合到 谐振元件和用于耦合到致动/检测元件4A,4B的连接器7。 传感器1还包括限定从流体F隔离的腔室8A的壳体2,壳体2包括减小厚度的区域,其限定将腔室8A与流体F分离的隔膜9.致动/检测元件4A,4B定位 在室内,以便与流体F隔离并且机械耦合到隔膜9.布置成浸入流体F中的谐振元件3,3A,3B,3C,3D机械耦合到膜9.膜 9具有能够在致动/检测元件4A,4B与谐振元件3A,3B,3C,3D之间传递机械振动的厚度。

    Density and Viscosity Sensor
    6.
    发明申请
    Density and Viscosity Sensor 有权
    密度和粘度传感器

    公开(公告)号:US20080257036A1

    公开(公告)日:2008-10-23

    申请号:US12097901

    申请日:2006-12-27

    CPC classification number: G01N9/002 G01N11/16

    Abstract: A density and viscosity sensor 1 for measuring density and viscosity of fluid F, the sensor 1 comprising: a resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G arranged to be immersed in the fluid F, an actuating/detecting element 4, 4A, 4B coupled to the resonating element, a connector 7 for coupling to the actuating/detecting element 4, 4A, 4B, a housing 2 defining a chamber 8A isolated from the fluid F, the housing 2 comprising an area of reduced thickness defining a membrane 9 separating the chamber 8A from the fluid F, the membrane 9 having a thickness enabling transfer of mechanical vibration between the actuating/detecting element 4, 4A, 4B and the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G, the actuating/detecting element 4, 4A, 4B is positioned within the chamber so as to be isolated from the fluid F and mechanically coupled to the membrane 9, the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G arranged to be immersed in the fluid F is mechanically coupled to the membrane 9, wherein the resonating element 3, 3A, 3B, 3C, 3D, 3E, 3F, 3G has a shape defining a first resonance mode and a second resonance mode characterized by different resonant frequencies F1, F2 and different quality factors Q1, Q2, the first resonance mode moving a volume of fluid, the second mode shearing a surrounding fluid.

    Abstract translation: 用于测量流体F的密度和粘度的密度和粘度传感器1,传感器1包括:谐振元件3,3A,3B,3C,3D,3E,3F,3G,被布置成浸入 流体F,耦合到谐振元件的致动/检测元件4,4A,4B,用于联接到致动/检测元件4,4A,4B的连接器7,限定腔室8A的壳体2隔离 来自流体F的壳体2包括减小厚度的区域,其限定了将腔室8A与流体F分隔开的膜9,膜9具有能够在致动/检测元件4,4A之间传递机械振动的厚度, 4 B和谐振元件3,3A,3B,3C,3D,3E,3F,3G,致动/检测元件4,4A,4B位于室内,以便 从流体F隔离并机械耦合到膜9,布置成浸没在流体F中的谐振元件3,3A,3B,3C,3D,3E,3F,3G是机械 耦合到膜9,其中谐振元件3,3A,3B,3C,3D,3E,3F,3G具有限定第一共振模式的形状和以不同谐振为特征的第二谐振模式 频率F 1,F 2和不同的质量因子Q 1,Q 2,第一共振模式移动a 流体体积,第二模式剪切周围液体。

    Density and Viscosity Sensor
    7.
    发明申请
    Density and Viscosity Sensor 有权
    密度和粘度传感器

    公开(公告)号:US20080156093A1

    公开(公告)日:2008-07-03

    申请号:US11817404

    申请日:2006-02-24

    CPC classification number: G01N9/002 G01N11/16

    Abstract: A density and viscosity sensor 1 for measuring density and viscosity of fluid F, the sensor 1 comprising a resonating element 3, 3A, 3B, 3C, 3D arranged to be immersed in the fluid F, an actuating/detecting element 4A, 4B coupled to the resonating element, and a connector 7 for coupling to the actuating/detecting element 4A, 4B. The sensor 1 further comprises a housing 2 defining a chamber 8A isolated from the fluid F, the housing 2 comprising an area of reduced thickness defining a membrane 9 separating the chamber 8A from the fluid F. The actuating/detecting element 4A, 4B is positioned within the chamber so as to be isolated from the fluid F and mechanically coupled to the membrane 9. The resonating element 3, 3A, 3B, 3C, 3D arranged to be immersed in the fluid F is mechanically coupled to the membrane 9. The membrane 9 has a thickness enabling transfer of mechanical vibration between the actuating/detecting element 4A, 4B and the resonating element 3, 3A, 3B, 3C, 3D.

    Abstract translation: 用于测量流体F的密度和粘度的密度和粘度传感器1,传感器1包括布置成浸没在流体F中的谐振元件3,3A,3B,3C,3D,致动/检测元件4 耦合到谐振元件的A,4B,以及用于耦合到致动/检测元件4A,4B的连接器7.传感器1还包括限定与流体F隔离的室8A的壳体2,壳体2 包括减小厚度的区域,其限定将腔室8A与流体F分隔开的膜9.致动/检测元件4A,4B定位在腔室内,以便与流体F隔离并且机械地联接到膜 9。 布置成浸没在流体F中的谐振元件3,3A,3B,3C,3D机械耦合到膜9。 膜9具有能够在致动/检测元件4A,4B与谐振元件3,3A,3B,3C,3D之间传递机械振动的厚度。

    Density and viscosity sensor
    8.
    发明授权
    Density and viscosity sensor 有权
    密度和粘度传感器

    公开(公告)号:US07874199B2

    公开(公告)日:2011-01-25

    申请号:US12097901

    申请日:2006-12-27

    CPC classification number: G01N9/002 G01N11/16

    Abstract: A density and viscosity sensor for measuring density and viscosity of a fluid, and method for measuring, are presented herein. The sensor comprises a resonating element, and actuating/detecting element, a connector and a housing. The actuating/detecting element is positioned within a chamber defined by the housing so as to be isolated from the fluid. The resonating element is arranged to be immersed in the fluid, and has a shape defining a first resonance mode and a second resonance mode characterized by different resonance frequencies and different quality factors. The first resonance mode is adapted to move a volume of fluid, and the second resonance mode is adapted to shear a surrounding fluid.

    Abstract translation: 本文给出了用于测量流体密度和粘度的密度和粘度传感器及其测量方法。 传感器包括谐振元件,致动/检测元件,连接器和壳体。 致动/检测元件位于由壳体限定的室内,以便与流体隔离。 谐振元件布置成浸没在流体中,并且具有限定第一共振模式的形状和以不同共振频率和不同质量因子为特征的第二共振模式。 第一谐振模式适于移动一定体积的流体,并且第二共振模式适于剪切周围流体。

    Micro-valve and micro-fluidic device using such
    9.
    发明授权
    Micro-valve and micro-fluidic device using such 有权
    微阀和微流体装置使用

    公开(公告)号:US09371937B2

    公开(公告)日:2016-06-21

    申请号:US13203218

    申请日:2010-02-19

    Abstract: A micro-valve (10) adapted for integration with a micro-fluidic device such as a micro-injector of a chromatograph, the micro-valve having a first substrate (12), a second substrate (14) having microconduits (36,38) and a seating surface (30), and an actuation membrane (16) positioned between the first substrate (12) and the second substrate (14) for opening or closing a fluid path (48) of the micro-valve (10) under a force applied by a mechanism such as a pneumatic or piezoelectric device, wherein said actuation membrane (16) is constructed from a poly(aryl ether ketone).

    Abstract translation: 一种微型阀(10),适于与诸如色谱仪的微型注射器的微流体装置集成,所述微型阀具有第一衬底(12),具有微型管道(36,38)的第二衬底(14) )和座表面(30)以及位于第一基板(12)和第二基板(14)之间的用于打开或关闭微阀(10)的流体路径(48)的致动膜(16) 由诸如气动或压电装置的机构施加的力,其中所述致动膜(16)由聚(芳基醚酮)构成。

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