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    Capacitance-based pressure sensor including pressure vessel(s)
    3.
    发明授权
    Capacitance-based pressure sensor including pressure vessel(s) 有权
    电容式压力传感器，包括压力容器

    公开(公告)号：US09347846B2

    公开(公告)日：2016-05-24

    申请号：US14224535

    申请日：2014-03-25

    Applicant: Kionix, Inc.

    Inventor： Scott G. Adams

    IPC: G01L9/00 ,  H01G5/40 ,  H01G13/00 ,  G01L13/02

    CPC classification number: G01L9/0073 ,  G01L9/0086 ,  G01L9/0095 ,  G01L13/021 ,  G01L13/028 ,  H01G5/40 ,  H01G13/00 ,  Y10T29/43

    Abstract: Techniques are described herein that perform capacitance-based pressure sensing using pressure vessel(s). A pressure vessel is an object that has a cross section that defines a void. The void has a shape that is configured to change based on a change of pressure difference between a cavity pressure in a cavity in which at least a portion of the pressure vessel is suspended and a vessel pressure in the pressure vessel. The pressure vessel may be formed in the shape of an enclosed loop (e.g., along a path that is perpendicular to the cross section), resulting in a looped pressure vessel. For instance, an end of the pressure vessel may be connected to another end of the pressure vessel to form the enclosed loop.

    Abstract translation: 本文描述了使用压力容器进行基于电容的压力感测的技术。 压力容器是具有限定空隙的横截面的物体。 该空隙具有基于空腔中的空腔压力的变化而变化的形状，其中压力容器的至少一部分悬浮在其中并且压力容器内的容器压力。 压力容器可以形成为封闭环的形状（例如，沿着垂直于横截面的路径），导致环形压力容器。 例如，压力容器的一端可以连接到压力容器的另一端以形成封闭环。

    Differential pressure sensor with read-out device
    4.
    发明授权
    Differential pressure sensor with read-out device 失效
    差压传感器带读出装置

    公开(公告)号：US5070736A

    公开(公告)日：1991-12-10

    申请号：US461233

    申请日：1990-01-05

    Applicant: Hyok S. Lew

    Inventor： Hyok S. Lew

    IPC: G01L9/00 ,  G01L13/02

    CPC classification number: G01L9/0091 ,  G01L13/021

    Abstract: A differential pressure sensor comprises a pair of bourdon tubes disposed in an arrangement wherein deflections of the two bourdon tubes resulting from fluid pressures connected thereto take place in two opposite directions and the deflective extremities of the two bourdon tubes are linked to one another by a linkage, which linkage is coupled to a transducer that converts the displacement of the linkage to an electrical parameter such as the ohmic resistance, capacitance, reluctance, or resonance frequency as a measure of differential values between two pressures respectively connected to the two bourdon tubes.

    Abstract translation: 差压传感器包括一对布尔登管，其布置为布置，其中由与其连接的流体压力导致的两个波尔登管的偏转在两个相反的方向上发生，并且两个布尔登管的偏转四肢通过连杆 ，该联动装置耦合到换能器，其将联动装置的位移转换为诸如欧姆电阻，电容，磁阻或共振频率的电参数，作为分别连接到两个布尔登管的两个压力之间的差值的量度。

    Resonance frequency liquid level sensor
    6.
    发明授权
    Resonance frequency liquid level sensor 失效
    共振频率液位传感器

    公开(公告)号：US5074148A

    公开(公告)日：1991-12-24

    申请号：US497905

    申请日：1990-03-23

    Applicant: Hyok S. Lew

    Inventor： Hyok S. Lew

    IPC: G01F23/296 ,  G01F23/68 ,  G01F23/72 ,  G01L9/00 ,  G01L13/02

    CPC classification number: G01L13/021 ,  G01F23/2966 ,  G01F23/68 ,  G01F23/72 ,  G01L9/0091

    Abstract: A liquid level sensor comprises an elongated tubular member with two open ends contained in an elongated cylindrical container vessel in an arrangement wherein the two extremities of the elongated tubular member extending through the wall of the elongated cylindrical container vessel are respectively open to a liquid medium that rises through the elongated tubular member to the same level as the free surface thereof and to an ambient air above the free surface of the liquid medium; wherein the level of the liquid medium is determined from a natural frequency of flexural vibration of a section of the elongated tubular member partially filled with the liquid medium; which combination may further include another section of the elongated tubular member completely filled with the liquid medium, wherein the density of the liquid medium is determined from a natural frequency of flexural vibration of the section completely filled with the liquid medium and the level of the liquid medium is determined from a combination of the density of the liquid medium and the natural frequency of flexural vibration of the section of the elongated tubular member partially filled with the liquid medium.

    Abstract translation: 液位传感器包括细长的管状构件，其具有两个敞开的端部，该两个开口端包含在细长的圆柱形容器容器中，其中延伸穿过细长圆柱形容器容器的壁的细长管状构件的两个末端分别对液体介质敞开， 通过细长的管状构件升高到与其自由表面相同的水平面，并升高到液体介质的自由表面上方的环境空气; 其中所述液体介质的液位由部分填充有所述液体介质的所述细长管状部分的部分的弯曲振动的固有频率确定; 该组合可以进一步包括完全填充有液体介质的细长管状构件的另一部分，其中液体介质的密度由完全充满液体介质的部分的弯曲振动的固有频率和液体的液面确定 介质由液体介质的密度和部分填充有液体介质的细长管状部分的部分的弯曲振动的固有频率的组合确定。

    Dual bourdon tube type sensing pressure transducer
    7.
    发明授权
    Dual bourdon tube type sensing pressure transducer 失效
    双波登管式感应式压力传感器

    公开(公告)号：US4718279A

    公开(公告)日：1988-01-12

    申请号：US936366

    申请日：1986-12-01

    Applicant: John Hestich

    Inventor： John Hestich

    IPC: G01L9/00 ,  G01L13/02 ,  G01L7/04 ,  G01L9/04

    CPC classification number: G01L9/0027 ,  G01L13/021

    Abstract: A pressure transducer in the nature of a differential pressure transmitter including an instrument housing defining a chamber in which is mounted a sensing transducer one of several known types powered to provide a gauge signal that is to be supplied to instrumentation such as a controller or recorder, with the pressure sensing arrangement of the instrument being in the form of two oppositely coiled bourdon tubes mounted one on either side of the sensing transducer, with like ends of the tubes each mounting an output lever, which levers are respectively resiliently connected to the movable element of the transducer and in an oppositely acting manner, with the other ends of the respective tubes being separately connected to a mounting block arranged to provide for connection of the respective tubes to separate, externally located, sources of pressure fluids, and with one of the output levers being adjustable as to length for calibrating the instrument so that the action of the two tubes on the sensing transducer may be made equivalent when equal static pressures are sensed by the respective tubes, this compensating for inequalities in the tubes to insure a "zero" readout of the instrument when the tubes sense equal static pressures.

    Abstract translation: 一种差压变送器性质的压力传感器，包括限定腔室的仪器壳体，其中安装有多个已知类型的感测传感器，以提供要提供给诸如控制器或记录器之类的仪器的量规信号， 其中仪器的压力感测布置为两个相对卷曲的布尔登管的形式，一个安装在感测换能器的任一侧上，管的相似端部安装有输出杆，该杆分别弹性地连接到可动元件 的换能器并且以相反的方式，相应管的另一端单独连接到安装块，该安装块被布置成提供用于将各个管连接到单独的，位于外部的压力流体源，并且与 输出杆可根据校准仪器的长度进行调整，使两根管的作用 在相应的静压力被相应的管子感测时，在传感器上的感应传感器可以被制造成等效的，这补偿了管中的不平等以确保当管感测相等的静压时仪器的“零”读数。

    CAPACITANCE-BASED PRESSURE SENSOR INCLUDING PRESSURE VESSEL(S)
    9.
    发明申请
    CAPACITANCE-BASED PRESSURE SENSOR INCLUDING PRESSURE VESSEL(S) 有权
    基于电容式压力传感器，包括压力容器（S）

    公开(公告)号：US20150276532A1

    公开(公告)日：2015-10-01

    申请号：US14224535

    申请日：2014-03-25

    Applicant: Kionix, Inc.

    Inventor： Scott G. Adams

    IPC: G01L9/00 ,  H01G13/00 ,  H01G5/40

    CPC classification number: G01L9/0073 ,  G01L9/0086 ,  G01L9/0095 ,  G01L13/021 ,  G01L13/028 ,  H01G5/40 ,  H01G13/00 ,  Y10T29/43

    Abstract: Techniques are described herein that perform capacitance-based pressure sensing using pressure vessel(s). A pressure vessel is an object that has a cross section that defines a void. The void has a shape that is configured to change based on a change of pressure difference between a cavity pressure in a cavity in which at least a portion of the pressure vessel is suspended and a vessel pressure in the pressure vessel. The pressure vessel may be formed in the shape of an enclosed loop (e.g., along a path that is perpendicular to the cross section), resulting in a looped pressure vessel. For instance, an end of the pressure vessel may be connected to another end of the pressure vessel to form the enclosed loop.

    Abstract translation: 本文描述了使用压力容器进行基于电容的压力感测的技术。 压力容器是具有限定空隙的横截面的物体。 该空隙具有基于空腔中的空腔压力的变化而变化的形状，其中压力容器的至少一部分悬浮在其中并且压力容器内的容器压力。 压力容器可以形成为封闭环的形状（例如，沿着垂直于横截面的路径），导致环形压力容器。 例如，压力容器的一端可以连接到压力容器的另一端以形成封闭环。

    Pressure gauge with fiber optic sensor
    10.
    发明授权
    Pressure gauge with fiber optic sensor 失效
    带光纤传感器的压力表

    公开(公告)号：US5138155A

    公开(公告)日：1992-08-11

    申请号：US655191

    申请日：1991-02-13

    Applicant: Tommy L. Gray

    Inventor： Tommy L. Gray

    IPC: G01L9/00 ,  G01L11/02 ,  G01L13/02

    CPC classification number: G01L13/021 ,  G01L11/02 ,  G01L9/0032

    Abstract: A pressure responsive apparatus having a flow-through element provides indications of measured pressure. The apparatus preferably includes a pressure gauge having a flow-through Bourdon tube responsive to an external pressure. The flow-through Bourdon tube drives a conventional pointer indicator and further supports a reflective target that is positioned in response to pressure applied to the Bourdon tube. Light is transmitted to the target by means of fiber optic cables from a remotely positioned oscillator. Light is reflected by the target and transmitted by fiber optic cables to processing circuitry that responds to reflected light signals as generated by the oscillator. To generate these light signals, light emitting diodes form a light source and the light signals are detected by means of phototransistors. A reference target is also provided along with a second light source/light detector pair. The processing circuitry responds to the outputs of the phototransistors and generates a controller output by use of a look-up table.

    Abstract translation: 具有流通元件的压力响应装置提供测量压力的指示。 该装置优选地包括具有响应于外部压力的流过布尔登管的压力计。 流经布尔登管驱动常规指针指示器，并进一步支撑响应于施加到布尔登管的压力定位的反射目标。 光通过远程定位的振荡器的光纤电缆传输到目标。 光被目标反射并被光纤电缆传输到响应由振荡器产生的反射光信号的处理电路。 为了产生这些光信号，发光二极管形成光源，并通过光电晶体管检测光信号。 还提供了参考目标以及第二光源/光检测器对。 处理电路响应于光电晶体管的输出，并通过使用查找表产生控制器输出。

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