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    Capacitance-based pressure sensor including pressure vessel(s)
    4.
    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

    申请人： Kionix, Inc.

    发明人： Scott G. Adams

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

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

    摘要： 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.

    摘要翻译： 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。

    Media independent differential pressure transducer
    5.
    发明授权
    Media independent differential pressure transducer 失效
    介质独立压差传感器

    公开(公告)号：US4161887A

    公开(公告)日：1979-07-24

    申请号：US830292

    申请日：1977-09-02

    申请人： Vaughn L. Stone ,  Terence K. Rhind ,  Allen H. Andrews ,  John M. Hendrie

    发明人： Vaughn L. Stone ,  Terence K. Rhind ,  Allen H. Andrews ,  John M. Hendrie

    IPC分类号： G01L9/00 ,  G01L13/02 ,  G01L9/04

    CPC分类号： G01L9/0083 ,  G01L13/025 ,  G01L13/028 ,  G01L9/006

    摘要： A differential pressure transducer utilizing fluid-filled chambers as pressure transfer linkage to an isolated, fluid-filled aneroid sensing system. Isolation diaphragms are spread by means of internal fluid pressure fill of transfer chambers, thus providing elevated line pressure mode and pressure-biased operation. Construction offers media isolation from sensitive interior elements of the transducer. Material to come into physical contact with a pressure medium may thus be chosen for specific application. Dual, nested aneroid sensors cooperated to produce a linear displacement in response to an applied pressure differential. A cantilever beam assembly responds to the linear displacement so caused by flexing in a degree proportional to the applied pressure differential. The fluid-filled sensing system may comprise nested, aneroid capsule diaphragms, carrying a sufficient amount of incompressible fluid to support the capsule diaphragm for high line pressure use. The nested, aneroid capsule diaphragms are thus also spread by the fluid pressure, thereby placing the pressure deflection of the aneroids in an elevated line pressure mode and providing pressure-biased operation. Strain gages respond to the flexing of the cantilever beam assembly, thereby having an electrical signal induced in them proportional to the applied differential pressure as sensed by the aneroid capsule diaphragm sensors.

    摘要翻译： 使用流体填充室的压差传感器作为与隔离的流体填充的无液体感测系统的压力传递连接。 隔离膜片通过传送室的内部流体压力填充物扩散，从而提供高压管路压力模式和压力偏置操作。 结构提供了传感器敏感内部元件的介质隔离。 因此可以选择与压力介质物理接触的材料用于特定应用。 双重嵌套无弹性传感器被配合以响应于所施加的压力差产生线性位移。 悬臂梁组件响应于由与所施加的压差成比例的挠曲而产生的线性位移。 流体填充的感测系统可以包括嵌套的无囊胶囊隔膜，其携带足够量的不可压缩流体以支撑用于高线压力使用的胶囊隔膜。 因此，嵌套的无囊胶囊隔膜也通过流体压力扩散，从而将无菌的压力偏转放置在升高的管线压力模式并提供压力偏置操作。 应变片响应于悬臂梁组件的挠曲，由此在其中感应的电信号与由无形胶囊隔膜传感器感测到的施加的压差成比例。

    Pressure transducer
    6.
    发明授权
    Pressure transducer 失效
    压力传感器

    公开(公告)号：US3747042A

    公开(公告)日：1973-07-17

    申请号：US3747042D

    申请日：1971-08-24

    申请人： GULTON IND INC

    发明人： SHELDON J

    IPC分类号： G01L9/00 ,  G01L13/02 ,  H01C13/00

    CPC分类号： G01L9/0085 ,  G01L13/028

    摘要： A pressure transducer using diaphragm capsules. In a first general embodiment, operable to avoid failure due to extreme overpressure, a pair of nestable diaphragm capsules, differing one from the other in surface area and rigidity, are interconnected by a passageway, and the diaphragms and passageway are filled with a substantially incompressible fluid. In a second general embodiment, operable to cancel out inertial effects, pairs of diaphragm capsules are utilized. Each capsule forms an interface between the high and low pressures and the diaphragms are positioned in opposition to one another, so as to move in opposite directions in response to a given change in pressure differential. A third general embodiment combines the first and second embodiments.

    摘要翻译： 使用隔膜胶囊的压力传感器。 在第一个一般实施例中，可操作以避免由于极度过压引起的故障，一对可嵌套的隔膜胶囊（其在表面积和刚度上彼此不同）通过通道相互连接，并且隔膜和通道被填充有基本不可压缩 流体。 在第二个一般实施例中，可操作地抵消惯性效应，使用成对的隔膜囊。 每个胶囊形成高压和低压之间的界面，并且隔膜彼此相对设置，以响应于给定的压差变化而沿相反方向移动。 第三个一般实施例组合了第一和第二实施例。

    DUPLEX PRESSURE TRANSDUCERS
    7.
    发明申请
    DUPLEX PRESSURE TRANSDUCERS 有权
    双重压力传感器

    公开(公告)号：US20150101414A1

    公开(公告)日：2015-04-16

    申请号：US14189899

    申请日：2014-02-25

    申请人： Rosemount Aerospace Inc.

    发明人： Saeed Fahimi ,  Odd H. Eriksen ,  Charles Little

    IPC分类号： G01L13/02 ,  G01D11/24

    CPC分类号： G01L13/028 ,  G01D11/245 ,  G01L13/04 ,  G01L15/00 ,  G01L19/0038

    摘要： A transducer baseplate includes a base, a protrusion extending from the base along a longitudinal axis, a pair of opposed transducer receptacles defined within the protrusion, and respective pressure plena. The pressure plena are separated by a plenum wall, each plenum being in fluid connection with an area external to the protrusion through a respective pressure line. The pressure lines provide a direct fluid path to their respective receptacles.

    摘要翻译： 传感器基板包括基部，从基部沿着纵向轴线延伸的突起，限定在突出部内的一对相对的换能器插座以及相应的压力斑。 压力斑块由一个增压室隔开，每个气室通过相应的压力管线与突起外部的区域流体连接。 压力线提供了直接流体通向其各自的容器。

    Differential Pressure Sensor
    8.
    发明申请
    Differential Pressure Sensor 有权
    差压传感器

    公开(公告)号：US20100281991A1

    公开(公告)日：2010-11-11

    申请号：US12663055

    申请日：2008-06-03

    申请人： Bjorn Erik Seeberg

    发明人： Bjorn Erik Seeberg

    IPC分类号： G01L13/02

    CPC分类号： G01L13/028 ,  G01L19/0618 ,  G01L19/0645

    摘要： A differential pressure sensor for measuring a pressure difference between two high-pressure environments is comprised of a sensor block including internal, oil-filled channels leading to an internally positioned differential pressure sensor element. Two process diaphragms are provided for transferring pressure from the high-pressure environments for isolating two distinct internal oil channels from the high-pressure environments. In order to achieve small internal oil volumes in the sensor block, additionally two separating discs, which initially separate between the two internal oil channels, are positioned in fluid communication with the high-pressure environments in order to block for the pressure from the high-pressure environments against the oil channels “from behind.” The separating discs bear against abutment faces having small openings into the internal oil channels. The separating discs are preferably given a pre-tension, and the abutment faces are then shaped correspondingly having a slightly convex shape. Preferably, separating discs with no corrugations are used.

    摘要翻译： 用于测量两个高压环境之间的压力差的差压传感器包括传感器块，其包括通向内部定位的差压传感器元件的内部充油通道。 提供两个过程隔膜，用于从高压环境传递压力，用于将两个不同的内部油通道与高压环境隔离。 为了在传感器组件中实现小的内部油量，另外两个初始分离在两个内部油通道之间的分离盘被定位成与高压环境流体连通，以阻挡来自高压环境的压力， 压力环境从油门“后面”。分离盘承受与内部油通道有小开口的对接面。 分离盘优选地具有预张力，并且接合面然后相应地具有略微凸起的形状。 优选地，使用没有波纹的分离盘。