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公开(公告)号：US07397976B2
公开(公告)日：2008-07-08
申请号：US11042850
申请日：2005-01-25
CPC分类号： E21B47/123 , E21B47/06 , E21B47/09 , G01D5/35364 , G01L11/025 , G02B6/4464
摘要： An assembly senses fluid pressure variations within a passageway along a length of a flowline. A fiber optic cable is disposed axially within the passageway of the flowline. The fiber optic cable experiences a mechanical strain responsive to variations in the fluid pressure of the fluid communicating through the passageway of the flowline along the length of the flowline. The assembly also includes an enhancing layer surrounding the fiber optic cable. The enhancing layer is more responsive to the fluid pressure of the fluid communicating through the passageway of the cable than the fiber optic cable, which enhances the responsiveness of the fiber optic cable to the pressure by magnifying the mechanical strain associated with the fiber optic cable within a particular region of varying fluid pressure. Strain associated with the cable is communicated through back-reflected light.
摘要翻译： 组件感测沿着流线长度的通道内的流体压力变化。 光纤电缆轴向设置在流线的通道内。 光纤电缆经受机械应变，其响应于沿着流线的长度通过流线的通道连通的流体的流体压力的变化。 组件还包括围绕光纤电缆的增强层。 增强层比通过光纤电缆更好地响应通过电缆的通道连通的流体的流体压力，其通过放大与光纤电缆相关联的机械应变来增强光纤电缆对压力的响应性， 变化流体压力的特定区域。 与电缆相关联的应变通过背反射光传送。
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公开(公告)号：US20060165344A1
公开(公告)日：2006-07-27
申请号：US11042850
申请日：2005-01-25
申请人： Alexis Mendez , Evangelos Diatzikis
发明人： Alexis Mendez , Evangelos Diatzikis
IPC分类号： G02B6/26
CPC分类号： E21B47/123 , E21B47/06 , E21B47/09 , G01D5/35364 , G01L11/025 , G02B6/4464
摘要： An assembly senses fluid pressure variations within a passageway along a length of a flowline. A fiber optic cable is disposed axially within the passageway of the flowline. The fiber optic cable experiences a mechanical strain responsive to variations in the fluid pressure of the fluid communicating through the passageway of the flowline along the length of the flowline. The assembly also includes an enhancing layer surrounding the fiber optic cable. The enhancing layer is more responsive to the fluid pressure of the fluid communicating through the passageway of the cable than the fiber optic cable, which enhances the responsiveness of the fiber optic cable to the pressure by magnifying the mechanical strain associated with the fiber optic cable within a particular region of varying fluid pressure. Strain associated with the cable is communicated through back-reflected light.
摘要翻译： 组件感测沿着流线长度的通道内的流体压力变化。 光纤电缆轴向设置在流线的通道内。 光纤电缆经受机械应变，其响应于沿着流线的长度通过流线的通道连通的流体的流体压力的变化。 组件还包括围绕光纤电缆的增强层。 增强层比通过光纤电缆更好地响应通过电缆的通道连通的流体的流体压力，其通过放大与光纤电缆相关联的机械应变来增强光纤电缆对压力的响应性， 变化流体压力的特定区域。 与电缆相关联的应变通过背反射光传送。
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3.发明授权
公开(公告)号：US5280173A
公开(公告)日：1994-01-18
申请号：US828565
申请日：1992-01-31
申请人： Theodore F. Morse , Alexis Mendez
发明人： Theodore F. Morse , Alexis Mendez
CPC分类号： G01R15/24 , G01D5/268 , G01J1/56 , G02B26/001
摘要： A method and apparatus for sensing electric and electromagnetic fields incorporating a fiber-optic transducer which mounts directly on a conventional optical fiber waveguide. The transducer employs a conductive Fabry-Perot microcavity bounded by a conductive, thin and corrugated diaphragm. When the conductive microcavity is placed in an electric field, the electric field is excluded from within the equipotential microcavity and a net electrostatic force acts on the diaphragm. Likewise, when the conductive microcavity is exposed to an electromagnetic wave, the wave exerts a radiation pressure on the diaphragm. In both cases, the diaphragm deflects linearly and uniformly under the influence of the extremely low electrostatic pressures which are induced. The diaphragm deflection modulates the reflectance within the optical fiber by varying the gap of the cavity. The change in reflected light is measured and correlated to the field strength using an improved dual-wavelength referencing technique which compensates for bending and transmission losses in the optical fiber.
摘要翻译： 一种用于感测电场和电磁场的方法和装置，其包括直接安装在光纤（20）上的换能器（30）。 换能器（30）采用由导电的，薄的和波状的隔膜（134）限定的导电法布里 - 珀罗微腔。 当导电微腔置于电场中时，电场从等电位微活动中排除，净静电力作用在隔膜上。 同样地，当导电微腔暴露于电磁波时，波在隔膜上施加辐射压力。 在这两种情况下，隔膜（134）在被诱导的极低静电压力的影响下线性均匀地偏转。 通过改变空腔的间隙（f），光阑（134）偏转调制光纤（20）内的反射率。 使用改进的双波长参考技术测量反射光的变化并与场强相关。
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公开(公告)号：US06785443B2
公开(公告)日：2004-08-31
申请号：US10062577
申请日：2002-01-30
申请人： Alexis Mendez , Mario Pacheco , Steve Montesanto , Gershon Perelman , William Wang , Jason Zweiback
发明人： Alexis Mendez , Mario Pacheco , Steve Montesanto , Gershon Perelman , William Wang , Jason Zweiback
IPC分类号： G02B634
CPC分类号： G02B6/022
摘要： The present invention is directed to a system and method for tuning an optical fiber Bragg grating by using a circular mechanism which uniformly stretches the fiber along its length while at the same time preserving the minimal size for stretching.
摘要翻译： 本发明涉及一种用于通过使用圆周机制来调谐光纤布拉格光栅的系统和方法，所述圆形机构沿着其长度均匀地拉伸光纤，同时保持最小拉伸尺寸。
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5.发明授权Gas-insulated switchgear with voltage transformer and optical measuring element 失效带电压互感器和光学测量元件的气体绝缘开关柜
公开(公告)号：US6016053A
公开(公告)日：2000-01-18
申请号：US918365
申请日：1997-08-26
CPC分类号： G01R15/242
摘要： The voltage transformer has a measuring element in the electrical field between an internal conductor and an external conductor of a metal-encapsulated, gas-insulated switchgear. The measuring element includes a Pockels crystal, a crystal of transparent material which, under the influence of the electric field, influences polarized light that is radiated through on account of the Pockels effect. The Pockels crystal has two parallel walls transverse with respect to the field lines. A first deflection prism, which deflects a light beam through 180.degree., is disposed on the crystal face at the high-voltage end. Several optical elements are disposed at the face on the low-voltage side. The optical elements include a light input coupler for polarized light and two light output couplers. The reflected light beam impinges on a beam splitter, which splits the light beam into two partial beams. The first partial beam radiates firstly through a quarter-wave plate and then through a first analyzer. The second partial beam radiates through a second analyzer.
摘要翻译： 电压互感器具有在内部导体和金属封装的气体绝缘开关设备的外部导体之间的电场中的测量元件。 测量元件包括普克尔斯晶体，透明材料晶体，其在电场的影响下影响由于普克尔效应而被辐射的偏振光。 普克尔斯晶体具有相对于场线横向的两个平行壁。 将光束偏转180°的第一偏转棱镜设置在高压端的晶面上。 几个光学元件设置在低压侧的面上。 光学元件包括用于偏振光的光输入耦合器和两个光输出耦合器。 反射光束照射在分束器上，分束器将光束分成两部分光束。 第一部分光束首先通过四分之一波片发射，然后通过第一分析仪辐射。 第二部分光束通过第二分析仪辐射。
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