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    Pressure detection of hermetically sealed device
    1.
    发明授权
    Pressure detection of hermetically sealed device 有权

    公开(公告)号：US10074404B2

    公开(公告)日：2018-09-11

    申请号：US15362332

    申请日：2016-11-28

    Applicant: Western Digital Technologies, Inc.

    Inventor： Seong-Hun Choe ,  Yuta Onobu

    IPC: G11B33/10 ,  G01L9/00 ,  G11B33/14

    CPC classification number: G11B33/10 ,  G01L9/0007 ,  G01M3/3272 ,  G11B25/043 ,  G11B33/1466 ,  G11B33/1486

    Abstract: A device is disclosed herein. The device comprises a housing, a gas, an antenna, and a control module. The housing defines and hermetically seals an interior cavity. The gas is contained within the interior cavity of the housing at a pressure greater than atmospheric pressure. At least a portion of the antenna is within the interior cavity of the housing. The control module is operably coupled with the antenna to transmit an incident radio wave into the interior cavity of the housing and receive a reflected radio wave within the interior cavity of the housing. The control module is configured to determine a resonance frequency of the interior cavity of the housing based on, at least partially, the reflected radio wave, and determine the pressure of the gas contained within the interior cavity of the housing based on, at least partially, the resonance frequency of the interior cavity of the housing.

    Pressure detecting apparatus made by 3D printing technologies being able to be used in dangerous areas
    2.
    发明授权
    Pressure detecting apparatus made by 3D printing technologies being able to be used in dangerous areas 有权
    由3D打印技术制成的压力检测装置能够在危险区域使用

    公开(公告)号：US09588001B2

    公开(公告)日：2017-03-07

    申请号：US14516581

    申请日：2014-10-17

    Applicant: NATIONAL KAOHSIUNG UNIVERSITY OF APPLIED SCIENCES

    Inventor： Chia-Chin Chiang ,  Tso- Sheng Hsieh

    IPC: G01L9/00 ,  G01L11/02 ,  G01M3/04

    CPC classification number: G01L11/025 ,  G01L9/0007 ,  G01M3/047

    Abstract: A pressure detecting apparatus made by 3D printing technologies being able to be used in dangerous areas is provided. It mainly comprises a light source, a processor, a coupler, and at least one pressure transducer. The pressure transducer comprises a main body and a fiber grating. The fiber grating comprises a fiber Bragg grating sensor, and the fiber grating is fixed on the main body and covers the fiber Bragg grating sensor. When the main body is placed in a fluid area, the fluid would flow through the opening to deform the strain layer and generate a strain variation on the fiber Bragg grating sensor to cause a signal variation in the reflection frequency spectrum. The coupler is configured to couple to the light source and the pressure transducer to decode the signal variation into pressure parameters.

    Abstract translation: 提供了能够在危险区域中使用的3D打印技术制成的压力检测装置。 它主要包括光源，处理器，耦合器和至少一个压力传感器。 压力传感器包括主体和光纤光栅。 光纤光栅包括光纤布拉格光栅传感器，光纤光栅固定在主体上，覆盖光纤布拉格光栅传感器。 当主体放置在流体区域中时，流体将流过开口以使应变层变形，并在光纤布拉格光栅传感器上产生应变变化，以引起反射频谱中的信号变化。 耦合器被配置为耦合到光源和压力传感器以将信号变化解码为压力参数。

    High temperature optical pressure sensor and method of fabrication of the same
    4.
    发明授权
    High temperature optical pressure sensor and method of fabrication of the same 有权
    高温光学压力传感器及其制造方法

    公开(公告)号：US07966887B2

    公开(公告)日：2011-06-28

    申请号：US12411878

    申请日：2009-03-26

    Applicant: Aaron Jay Knobloch ,  David William Vernooy ,  Weizhuo Li ,  David Mulford Shaddock ,  Stacey Joy Kennerly

    Inventor： Aaron Jay Knobloch ,  David William Vernooy ,  Weizhuo Li ,  David Mulford Shaddock ,  Stacey Joy Kennerly

    IPC: G01L9/00

    CPC classification number: G01L9/0079 ,  G01L9/0007

    Abstract: A high-temperature pressure sensor is provided. The sensor includes a quartz substrate with a cavity etched on one side. A reflective coating is deposited on at least a portion of the cavity. The sensor further includes a ferrule section coupled to the quartz substrate with the cavity therebetween. The cavity exists in a vacuum, and cavity gap is formed between the reflective metal coating and a surface of the ferrule. The sensor also includes an optical fiber enclosed by the ferrule section and extending from the cavity gap to an opposing end of the ferrule section and a metal casing surrounding the ferrule section and the quartz substrate with an opening for said optical fiber extending therefrom. The pressure applied to the quartz substrate changes the dimensions of the cavity gap and a reflected signal from the reflective coating is processed as a pressure.

    Abstract translation: 提供高温压力传感器。 该传感器包括具有在一侧蚀刻的腔的石英衬底。 反射涂层沉积在空腔的至少一部分上。 传感器还包括耦合到石英基板的套圈部分，其间具有空腔。 空腔存在于真空中，并且在反射金属涂层和套圈的表面之间形成腔间隙。 传感器还包括由套圈部分包围并从套圈部分的相对端延伸的光纤，以及围绕套圈部分和石英衬底的金属壳体，所述金属壳体具有从其延伸的所述光纤的开口。 施加到石英衬底的压力改变了空腔间隙的尺寸，并且将来自反射涂层的反射信号作为压力进行处理。

    MICRON-SCALE PRESSURE SENSORS AND USE THEREOF
    5.
    发明申请
    MICRON-SCALE PRESSURE SENSORS AND USE THEREOF 有权
    微型压力传感器及其使用

    公开(公告)号：US20110120226A1

    公开(公告)日：2011-05-26

    申请号：US12993813

    申请日：2009-05-21

    Applicant: Christopher Raymond Dennison ,  Peter Martin Wild

    Inventor： Christopher Raymond Dennison ,  Peter Martin Wild

    IPC: G01L11/02 ,  H05K13/00

    CPC classification number: G01L11/025 ,  G01D5/35303 ,  G01K11/3206 ,  G01L9/0007 ,  Y10T29/49002

    Abstract: An optical fibre sensing device for detecting physical parameters such as pressures, strains and temperatures comprises a probe housing therein an optical fibre. The distal end of the probe houses a distal portion of the optical fibre having a section provided with a fibre Bragg grating. The proximal end of the probe is mounted into a holder. The optical fibre is sealably mounted into the probe housing with a first seal overlaid the proximal portion of the optical fibre The seal may extend to about the proximal end of the optical fibre section with the Bragg grating. A second seal is overlaid the distal portion of the optical fibre and extends from the distal end of the probe to about the distal end of the optical fibre section with the Bragg grating. The proximal end of the probe is communicable with a fibre Bragg grating interrogation system.

    Abstract translation: 用于检测诸如压力，应变和温度的物理参数的光纤感测装置包括在其中容纳光纤的探针。 探头的远端容纳光纤的远端部分，其具有设置有光纤布拉格光栅的部分。 探头的近端安装在支架上。 光纤可密封地安装到探针外壳中，第一密封件覆盖在光纤的近端部分上。密封件可以用布拉格光栅延伸到光纤部分的近端。 第二密封件覆盖在光纤的远端部分上，并从布拉格光栅从探头的远端延伸到光纤部分的远端。 探头的近端可与光纤布拉格光栅询问系统通信。

    Optical pressure monitoring system
    7.
    发明授权
    Optical pressure monitoring system 有权
    光压监测系统

    公开(公告)号：US06523414B1

    公开(公告)日：2003-02-25

    申请号：US09836852

    申请日：2001-04-16

    Applicant: James A. Malmstrom ,  Kent F. Beck ,  Scott D. Miles

    Inventor： James A. Malmstrom ,  Kent F. Beck ,  Scott D. Miles

    IPC: G01L900

    CPC classification number: A61M5/16854 ,  A61M5/14232 ,  A61M2202/0482 ,  A61M2205/3306 ,  A61M2205/3351 ,  A61M2205/3355 ,  G01L9/0007

    Abstract: An optical pressure monitoring system includes a tube from an infusion set and an optical signal sensor disposed to detect changes in the diameter of the tube and thereby determine pressure changes within the tube. By selecting the position of the tube relative to the optical signal emitter and optical signal receiver, the optical signal sensor can both detect pressure changes and provide an integrity check for both the functioning of the optical signal sensor and the placement of the tube. By modifying the tube to exaggerate changes in tube diameter responsive to pressure changes, the sensitivity of the optical signal sensor can be increased.

    Abstract translation: 光学压力监测系统包括来自输液器的管和设置成检测管的直径变化并由此确定管内的压力变化的光信号传感器。 通过选择管相对于光信号发射器和光信号接收器的位置，光信号传感器既可以检测压力变化，又可以对光信号传感器的功能和放置管进行完整性检查。 通过改变管以根据压力变化夸大管直径的变化，可以增加光信号传感器的灵敏度。

    Pressure sensor for a surgical system
    8.
    发明授权
    Pressure sensor for a surgical system 失效
    手术系统的压力传感器

    公开(公告)号：US5846257A

    公开(公告)日：1998-12-08

    申请号：US912018

    申请日：1997-08-15

    Applicant: Larry L. Hood

    Inventor： Larry L. Hood

    IPC: A61F9/007 ,  A61M1/00 ,  A61M3/02 ,  G01L9/00 ,  A61B17/32

    CPC classification number: G01L9/0001 ,  A61M1/0027 ,  A61M3/0216 ,  G01L9/0004 ,  G01L9/0007 ,  A61F9/00736

    Abstract: An apparatus that senses the pressure within a fluid line which has an external surface. The apparatus includes a sensor which has a probe that is in contact with the external surface of the fluid line. Any change in pressure deflects the fluid line and displaces the probe. The sensor provides an output signal that is representative of the probe displacement.

    Abstract translation: 感测具有外表面的流体管线内的压力的装置。 该装置包括具有与流体管线的外表面接触的探针的传感器。 压力的任何变化使流体管线偏转并使探头移位。 传感器提供代表探头位移的输出信号。

    Method and apparatus for the non-invasive measurement of pressure inside pipes using a fiber optic interferometer sensor
    9.
    发明授权
    Method and apparatus for the non-invasive measurement of pressure inside pipes using a fiber optic interferometer sensor 失效
    使用光纤干涉仪传感器对管内压力进行非侵入性测量的方法和装置

    公开(公告)号：US5218197A

    公开(公告)日：1993-06-08

    申请号：US702540

    申请日：1991-05-20

    Applicant: Gerard P. Carroll

    Inventor： Gerard P. Carroll

    IPC: G01L9/00

    CPC classification number: G01L9/0007

    Abstract: A method and apparatus for the non-invasive sensing of the pressure within a pipe (or other vessel) is disclosed. An optical source produces a first light beam. This first light beam is split between a first (reference) and a second (measurement) optical fiber. The second optical fiber is associated with the pipe such that circumferential displacements in the pipe, due to changes in internal pressure, result in corresponding displacements in the length of the second optical fiber. Length changes in the optical fibers result in variations in the phase of the light emerging therefrom. The phase difference between the light beams emitted from the first and second optical fibers is then determined and related to changes in the internal pressure of the pipe.

    Abstract translation: 公开了用于非侵入性地检测管（或其他容器）内的压力的方法和装置。 光源产生第一光束。 该第一光束在第一（参考）和第二（测量）光纤之间分开。 第二光纤与管相关联，使得由于内部压力的变化，管中的周向位移导致第二光纤的长度上的相应位移。 光纤中的长度变化导致从其出射的光的相位变化。 然后确定从第一和第二光纤发射的光束之间的相位差并且与管的内部压力的变化相关。

    Fiber optical measuring device with a frequency sensitive transducer
    10.
    发明授权
    Fiber optical measuring device with a frequency sensitive transducer 失效
    具有频率敏感传感器的光纤测量装置

    公开(公告)号：US4493995A

    公开(公告)日：1985-01-15

    申请号：US376142

    申请日：1982-05-07

    Applicant: Morgan Adolfsson ,  Torgny Brogardh ,  Christer Ovren ,  Anders Persson

    Inventor： Morgan Adolfsson ,  Torgny Brogardh ,  Christer Ovren ,  Anders Persson

    IPC: G01D5/26 ,  G01D5/353 ,  G01K11/14 ,  G01L9/00 ,  G02B5/14

    CPC classification number: G01K11/14 ,  G01L9/0007

    Abstract: The invention relates to a fiber optical measuring device for measuring physical quantities such as temperature and pressure, comprising a measuring transducer comprising a sensor material, an electronic unit comprising an evaluating electronic system, light sources and photo-detectors, and one or more optical fibers which connect said transducer to said electronic unit. The invention is characterised in that the sensor material has optical properties dependent on the modulating frequency of the light, such as absorption, reflection or luminescence; that the light from the electronic unit is arranged to be modulated by one or more frequencies; that at least one of these frequencies lies within the frequency range where the optical properties of the sensor material are influenced by at least one of said physical quantities; and that the modulating amplitude and/or the modulating phase position of the light emanating from the sensor material is/are arranged to be detected in the electronic unit at at least one of said modulating frequencies.

    Abstract translation: 本发明涉及一种用于测量诸如温度和压力的物理量的光纤测量装置，包括测量换能器，包括传感器材料，包括评估电子系统，光源和光电检测器的电子单元以及一个或多个光纤 其将所述换能器连接到所述电子单元。 本发明的特征在于，传感器材料具有取决于光的调制频率的光学性质，例如吸收，反射或发光; 来自电子单元的光被布置成被一个或多个频率调制; 这些频率中的至少一个位于频率范围内，其中传感器材料的光学特性受到所述物理量中的至少一个的影响; 并且将从传感器材料发出的光的调制幅度和/或调制相位位置设置为在至少一个所述调制频率的电子单元中检测。

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