公开(公告)号：US20090015834A1

公开(公告)日：2009-01-15

申请号：US11776165

申请日：2007-07-11

申请人： Sebastian Csutak

发明人： Sebastian Csutak

IPC分类号： G01J4/00

CPC分类号： G01P15/093 ,  G01D5/268 ,  G01D5/344 ,  G01L1/241 ,  G01L11/02 ,  G01V11/00

摘要： A sensor for measuring in a borehole at least one of orientation, acceleration and pressure, the sensor including: a light source; a birefringent material receiving light from the source; and a photodetector for measuring light transmitted through the birefringent material to measure the at least one of orientation, acceleration and pressure.

摘要翻译： 一种用于在井眼中测量取向，加速度和压力中的至少一个的传感器，所述传感器包括：光源; 接收来自光源的光的双折射材料; 以及光电检测器，用于测量透射通过双折射材料的光以测量取向，加速度和压力中的至少一个。

公开(公告)号：US07334482B2

公开(公告)日：2008-02-26

申请号：US11152236

申请日：2005-06-15

申请人： Martin Lehmann ,  Jean-Noel Fehr ,  Martin Liechti ,  Urban Schnell

发明人： Martin Lehmann ,  Jean-Noel Fehr ,  Martin Liechti ,  Urban Schnell

IPC分类号： G01L9/00

CPC分类号： G01L11/02 ,  G01N21/15 ,  G01N21/3504 ,  G01N21/39

摘要： A method of monitoring pressure of a gas species up to at most a predetermined maximum pressure value is disclosed. The method includes exposing the gas species to transmission of laser light, periodically modulating the wavelength of the laser light over a wavelength band including at least one absorption line of the gas species, optoelectrically converting the transmitted laser light, thereby generating an electric output signal, performing at least one of first filtering the electric output signal with a filter characteristic having a lower cut-off frequency not lower than a transition frequency and of second filtering the electric output signal with a bandpass filter characteristic having an upper cut-off frequency not higher than the transition frequency and a lower cut-off frequency above the modulation frequency of the periodic wavelength modulation. The output of at least one of the filterings is evaluated as a pressure indicative signal.

公开(公告)号：US20070277974A1

公开(公告)日：2007-12-06

申请号：US11436737

申请日：2006-05-18

申请人： Rocco DiFoggio

发明人： Rocco DiFoggio

IPC分类号： E21B43/00

CPC分类号： E21B47/06 ,  G01L9/0079 ,  G01L11/02 ,  G01L11/04

摘要： A pressure sensor for use in measuring the pressure within fluids. The sensor comprises a medium whose material has a low coefficient of thermal expansion. The pressure can be measured by observing how signals pass through the medium at some unknown pressure and then comparing the observations to how the signals pass through the medium at a known pressure. The signals can be acoustic waves or light waves.

摘要翻译： 用于测量流体内压力的压力传感器。 传感器包括其材料具有低热膨胀系数的介质。 压力可以通过观察信号在某种未知压力下如何通过介质，然后将观测值与在已知压力下通过介质的信号进行比较来测量。 信号可以是声波或光波。

公开(公告)号：US07222537B2

公开(公告)日：2007-05-29

申请号：US10894309

申请日：2004-07-20

申请人： Martin Lehmann ,  Jean-Noel Fehr ,  Martin Liechti ,  Urban Schnell

发明人： Martin Lehmann ,  Jean-Noel Fehr ,  Martin Liechti ,  Urban Schnell

IPC分类号： G01N21/61

CPC分类号： G01L11/02 ,  G01N21/39 ,  Y10T29/49 ,  Y10T29/49845

摘要： A method of monitoring pressure of a gas species up to at most a predetermined maximum pressure value is disclosed. The method includes exposing the gas species to transmission of laser light, periodically modulating the wavelength of the laser light over a wavelength band including at least one absorption line of the gas species, optoelectrically converting the transmitted laser light, thereby generating an electric output signal, performing at least one of first filtering the electric output signal with a filter characteristic having a lower cut-off frequency not lower than a transition frequency and of second filtering the electric output signal with a bandpass filter characteristic having an upper cut-off frequency not higher than the transition frequency and a lower cut-off frequency above the modulation frequency of the periodic wavelength modulation. The output of at least one of the filterings is evaluated as a pressure indicative signal.

公开(公告)号：US20070022816A1

公开(公告)日：2007-02-01

申请号：US11474815

申请日：2006-06-26

申请人： Anand Jain

发明人： Anand Jain

IPC分类号： G01L11/02

CPC分类号： G01L11/02 ,  G01L19/083

摘要： A pressure indicating apparatus is disclosed. The apparatus indicates pressure change in a device, the apparatus comprises: a pointer, optical sensing means, a planar element and indicating means. The pointer moves in response to the change in pressure, which in turn moves the planar element. Light from the optical sensing means is incident on the planar element. The planar element varies the incident light, which is picked up by a conversion means. The conversion means converts light energy to electrical energy that is used to illuminate LED from an array of LED's or activates any one LCD component from the array LCD's in the display provided in the indicating means to indicate pressure.

公开(公告)号：US20060153487A1

公开(公告)日：2006-07-13

申请号：US10514871

申请日：2003-05-13

申请人： John McLellan ,  Maxwell Hadley ,  Yuehua Chen

发明人： John McLellan ,  Maxwell Hadley ,  Yuehua Chen

IPC分类号： G02B6/00

CPC分类号： G01L11/02 ,  E21B47/123 ,  G01L11/025 ,  G01L19/14

摘要： A fibre optic sensor deployed on a fibre optic cable to a remote location, such as an oil or gas well. The sensor, which can sense any of a variety of parameters such as pressure, temperature, flow rate, strain, or chemical properties, is located within a sleeve. The sleeve is constructed from a low-friction material, such as polytetrafluoroethylene, glass, or ceramic. Further, the sensor can float on a high-density fluid that surrounds it, or sink in a low-density fluid that surrounds it.

摘要翻译： 光纤传感器部署在光纤电缆到远程位置，如油井或气井。 传感器可以感测诸如压力，温度，流量，应变或化学特性等各种参数中的任何一个，位于套筒内。 套筒由低摩擦材料制成，如聚四氟乙烯，玻璃或陶瓷。 此外，传感器可以漂浮在其周围的高密度流体上，或者沉入其周围的低密度流体中。

公开(公告)号：US06976395B2

公开(公告)日：2005-12-20

申请号：US10487046

申请日：2002-08-02

申请人： Dietmar Arndt ,  Reinhard Hegewald ,  Thomas Hellfeld ,  Lutz Schmidt ,  Bernhard Steiger

发明人： Dietmar Arndt ,  Reinhard Hegewald ,  Thomas Hellfeld ,  Lutz Schmidt ,  Bernhard Steiger

IPC分类号： G01L1/04 ,  G01L9/00 ,  G01L11/02 ,  G01L23/16

CPC分类号： G01L23/16 ,  G01L1/044 ,  G01L9/0077 ,  G01L11/02

摘要： The invention relates to optical devices for measuring pressure or force, comprising an electromagnetic radiation source, and a pressure membrane or a spiral spring which has a surface that at least partially reflects the electromagnetic rays of the electromagnetic radiation source. The inventive devices are especially characterized in that they allow, inter alia, measurement of even the slightest pressure changes of fluids and other flowable materials in the stationary and/or flowing state or even the slightest mechanical deformations on spiral springs. In order to do this, the rays of an electromagnetic radiation source are incident on the at least partially reflective surface of the pressure membrane or spiral spring. At least one section of a stationarily located body or of a stationarily located body having a reflective layer is disposed in the path of the reflected rays, upstream of a photodetector for said rays, and projects into said rays. A mechanical modification causes the reflected rays to be absorbed, diffracted, reflected again and/or split to a higher or lesser extent by the body.

摘要翻译： 本发明涉及用于测量压力或力的光学装置，包括电磁辐射源，以及具有至少部分地反映电磁辐射源的电磁射线的表面的压力膜或螺旋弹簧。 本发明的装置的特征在于，它们尤其允许测量在静止和/或流动状态下的流体和其它可流动材料的甚至最轻微的压力变化，甚至在螺旋弹簧上甚至最轻微的机械变形。 为了做到这一点，电磁辐射源的射线入射到压力膜或螺旋弹簧的至少部分反射表面上。 具有反射层的固定位置体或固定位置体的至少一个部分设置在反射射线的路径中，用于所述射线的光电检测器的上游并投射到所述射线中。 机械修改使得反射的光线被身体吸收，衍射，反射和/或分裂到或多或少的程度。

公开(公告)号：US20040206184A1

公开(公告)日：2004-10-21

申请号：US10487046

申请日：2004-02-17

发明人： Dietmar Arndt ,  Reinhard Hegewald ,  Thomas Hellfeld ,  Lutz Schmidt ,  Bernhard Steiger

IPC分类号： G01L009/00

CPC分类号： G01L23/16 ,  G01L1/044 ,  G01L9/0077 ,  G01L11/02

摘要： The invention relates to optical devices for measuring pressure or force, comprising an clectromagnetic radiation source, and a pressure membrane or a spiral spring which has a surface that at least partially reflects the electromagnetic rays of the electromagnetic radiation source. The inventive devices are especially characterized in that they allow, inter alia, measurement of even the slightest pressure changes of fluids and other flowable materials in the stationary and/or flowing state or even the slightest mechanical deformations on spiral springs. In order to do this, the rays of an electromagnetic radiation source are incident on the at least partially reflective surface of the pressure membrane or spiral spring. At least one section of a stationarily located body or of a stationarily located body having a reflective layer is disposed in the path of the reflected rays, upstream of a photodetector for said rays, and projects into said rays. A mechanical modification causes the reflected rays to be absorbed, diffracted, reflected again and/or split to a higher or lesser extent by the body.

摘要翻译： 本发明涉及用于测量压力或力的光学装置，其包括电磁辐射源，以及具有至少部分地反映电磁辐射源的电磁射线的表面的压力膜或螺旋弹簧。 本发明的装置的特征在于，它们尤其允许测量在静止和/或流动状态下的流体和其它可流动材料的甚至最轻微的压力变化，甚至在螺旋弹簧上甚至最轻微的机械变形。 为了做到这一点，电磁辐射源的射线入射到压力膜或螺旋弹簧的至少部分反射表面上。 具有反射层的固定位置体或固定位置体的至少一个部分设置在反射射线的路径中，用于所述射线的光电检测器的上游并投射到所述射线中。 机械修改使得反射的光线被身体吸收，衍射，反射和/或分裂到或多或少的程度。

公开(公告)号：US20040008934A1

公开(公告)日：2004-01-15

申请号：US10381319

申请日：2003-03-25

发明人： Yoshihiro Takiguchi ,  Kensaku Itoh ,  Junpei Yamanaka ,  Masaomi Takasaka

IPC分类号： G02B006/26

CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G01L1/24 ,  G01L11/02 ,  G01P15/093 ,  G02B6/264 ,  G02B6/3845

摘要： A fiber coupling device comprises fixing parts 1V, to which the respective ends of two optical fibers 5 and 6 are fixed, photonic crystal 2, disposed inside the light path of light that propagates across the abovementioned ends, and external force application means 3, which applies an external force to photonic crystal 2. When an external force is applied by external force application means 3 to photonic crystal 2 while light is being propagated inside one optical fiber 5, the photonic band gap-of photonic crystal 2 changes and light of a wavelength that is in accordance with this photonic band gap is output from the other optical fiber 5.

摘要翻译： 光纤耦合装置包括固定在两个光纤5和6的各个端部固定的固定部分1V，设置在穿过上述端部的光的光路内部的光子晶体2和外力施加装置3， 对光子晶体2施加外力。当在一个光纤5内传播光的同时外力施加装置3施加外力作用于光子晶体2时，光子晶体2的光子带隙发生变化， 从另一光纤5输出与该光子带隙一致的波长。

公开(公告)号：US20030099426A1

公开(公告)日：2003-05-29

申请号：US10268407

申请日：2002-10-10

申请人： Visteon Global Technologies, Inc.

发明人： Jay D. Baker ,  Zhong-You Shi ,  Lawrence L. Kneisel

IPC分类号： G02B006/42

CPC分类号： F02D41/28 ,  F02B75/22 ,  F02B77/085 ,  F02B77/089 ,  F02D2400/18 ,  F02M51/005 ,  F05C2225/08 ,  G01F23/2925 ,  G01L11/02 ,  G01L23/16 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/122 ,  G02B6/1221 ,  G02B6/4298 ,  G02B6/43 ,  G02B2006/12104 ,  G02B2006/12109 ,  G08C23/02 ,  G08C2201/31 ,  G08C2201/41

摘要： A signal transmission system comprising a signal conduction matrix formed into a shape that allows transmission of a signal through the matrix using at least one surface signal router, at least one signal source operatively connected to a surface of the matrix and that generates a signal that propagates through matrix, and at least one signal receiver operatively connected to a surface of the matrix and that receives the signal from the signal source. The signal may be coded, modulated, frequency-converted, or amplified. The surface signal router can be a reflective coating, an indentation, a pressure fit structure, or at least one inclined cut on the surface of the matrix. A frequency-selective filter can be used to allow selective detection by a target signal receiver. The invention is also directed to various method of transmitting a signal using a signal conduction matrix.

摘要翻译： 一种信号传输系统，包括形成为允许使用至少一个表面信号路由器传输信号通过矩阵的形状的信号传导矩阵，至少一个信号源可操作地连接到矩阵的表面并且产生传播的信号 通过矩阵，以及可操作地连接到矩阵的表面并且从信号源接收信号的至少一个信号接收器。 信号可以被编码，调制，频率转换或放大。 表面信号路由器可以是反射涂层，压痕，压配合结构，或者矩阵表面上的至少一个倾斜切口。 可以使用频率选择滤波器来允许目标信号接收机的选择性检测。 本发明还涉及使用信号传导矩阵发送信号的各种方法。