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31. 发明申请

US20060132792A1 Fiber optic sensor 有权
公开(公告)号：US20060132792A1
公开(公告)日：2006-06-22
申请号：US11018323
申请日：2004-12-21
申请人： Roger Schultz , Neal Skinner , Harry Smith , Daniel Gleitman
发明人： Roger Schultz , Neal Skinner , Harry Smith , Daniel Gleitman
IPC分类号： G01B9/02
CPC分类号： G01B9/02023 , G01B9/02007 , G01B2290/25 , G01D5/35303 , G01L9/008 , G01L11/02
摘要： An apparatus, system and method are provided for measuring state properties without requiring an internal or proximate power supply. The apparatus provides a sensing device that is responsive to fluctuations in a state property that are encountered within the test zone. Due to the fluctuations experienced by the sensing device, a sensing signal is generated and transmitted to an optical device, such as an interferometer. The sensing signal's affect on the optical device produces an interference pattern that may be detected remotely and correlated to the fluctuation experienced by the sensing device.

32. 发明申请

US20050231729A1 Method and apparatus for continuous readout of Fabry-Perot fiber optic sensor 有权
标题翻译：连续读出法布里 - 珀罗光纤传感器的方法和装置
公开(公告)号：US20050231729A1
公开(公告)日：2005-10-20
申请号：US11105651
申请日：2005-04-14
申请人： Richard Lopushansky , John Berthold
发明人： Richard Lopushansky , John Berthold
IPC分类号： G01B9/02 , G01D5/26 , G01D5/353 , G01L9/00
CPC分类号： G01B9/02023 , G01B9/02004 , G01B2290/25 , G01D5/268 , G01D5/35303 , G01L9/0079
摘要： A pressure measurement system and method are described. The system uses a tunable laser and a Fabry-Perot sensor with integrated transducer. A detector senses the light modulated by the Fabry-Perot sensor. A signal conditioner, which can be located up to 15 km away, then uses the detector signal to determine the displacement of the diaphragm, which is indicative of pressure exerted against the diaphragm. Use of a temperature sensor to generate a signal, fed to the signal conditioner, to compensate for temperature is also contemplated.
摘要翻译：描述了压力测量系统和方法。该系统使用可调谐激光器和带有集成传感器的法布里 - 珀罗传感器。检测器感测法布里 - 珀罗传感器调制的光。可以位于距离15公里的信号调节器，然后使用检测器信号来确定隔膜的位移，其指示施加在隔膜上的压力。还考虑使用温度传感器来产生馈送到信号调节器以补偿温度的信号。

33. 发明申请

US20050151975A1 Fabry-perot fiber optic sensing device and method 审中-公开
标题翻译：法布里 - 珀罗光纤传感装置及方法
公开(公告)号：US20050151975A1
公开(公告)日：2005-07-14
申请号：US10756329
申请日：2004-01-14
申请人： Ivan Melnyk
发明人： Ivan Melnyk
IPC分类号： G01B9/02 , G01B11/16 , G01D5/353
CPC分类号： G01B9/02023 , G01B9/02044 , G01B9/02057 , G01B9/0209 , G01B11/18 , G01B2290/25 , G01D5/35303
摘要： The invention provides a device and a method for measuring a physical parameter. The device comprises a Fabry-Perot interferometer coupled to a polychromatic light source via fiber optic means. Light, modulated by the Fabry-Perot cavity, is recorded by a spectrometer. A phase function is calculated by a signal processing means from the modulated spectrum. Correlation coefficients are calculated between the determined phase function and a number of theoretical phase functions calculated for a variety of gap spacing of the Fabry-Perot cavity or a number of calibrated phase functions measured for variety of values of physical parameter. The gap spacing, which is associated with the physical parameter, is determined from the best-matched phase function. The processing time is shortened by the approximate estimation of the gap spacing through the position of the maximums and minimums of the modulated spectrum and by consequent precise determining of the gap spacing through correlation.
摘要翻译：本发明提供一种用于测量物理参数的装置和方法。该装置包括通过光纤装置耦合到多色光源的法布里 - 珀罗干涉仪。由法布里 - 珀罗腔调制的光被光谱仪记录下来。通过来自调制频谱的信号处理装置计算相位函数。在确定的相位函数和针对法布里 - 珀罗腔的各种间隙间隔计算的理论相位函数的数量或针对各种物理参数值测量的多个校准相位函数之间计算相关系数。与物理参数相关联的间隙间距由最佳匹配的相位函数确定。通过通过调制频谱的最大值和最小值的位置的间隙间距的近似估计以及随后通过相关性精确确定间隙间距来缩短处理时间。

34. 发明申请

US20040021874A1 Integrated scanning and ocular tomography system and method 失效
标题翻译：综合扫描和眼部断层扫描系统及方法
公开(公告)号：US20040021874A1
公开(公告)日：2004-02-05
申请号：US10601119
申请日：2003-06-19
申请人： VISX, INCORPORATED, A Delaware Corporation
发明人： John K. Shimmick
IPC分类号： G01B009/02
CPC分类号： A61F9/008 , A61B3/1005 , A61B2090/061 , A61F9/00804 , A61F9/00812 , A61F2009/00842 , A61F2009/00851 , A61F2009/00853 , A61F2009/00872 , A61F2009/0088 , A61F2009/00882 , A61F2009/00897 , G01B9/02002 , G01B9/02007 , G01B9/02044 , G01B9/0209 , G01B9/02091 , G01B2290/25 , G01B2290/70
摘要： Systems and methods of the present invention measure at least one reflecting surface of an object disposed along an optical path. In some embodiments a measured optical interference signal for each of at least three wavelengths of reflected light may be used to determine a modulation of frequency components of a Fourier series. Frequency components of a Fourier series may be transformed to spatial components that describe intensities and positions of light reflected along an optical path. Systems and methods of the present invention permit rapid measuring and may monitor corneal thickness during surgery. The invention may do so by integrating an ablation device and a measurement apparatus into a single system. An integrated scanning and monitoring system may include an ablative light source producing an ablative beam and a measurement light source producing a measurement beam.
摘要翻译：本发明的系统和方法测量沿着光路布置的物体的至少一个反射表面。在一些实施例中，用于反射光的至少三个波长中的每一个的测量的光学干涉信号可以用于确定傅里叶级数的频率分量的调制。傅立叶级数的频率分量可以被变换为描述沿光路反射的光的强度和位置的空间分量。本发明的系统和方法允许快速测量并且可以在手术期间监测角膜厚度。本发明可以通过将消融装置和测量装置集成到单个系统中来实现。集成的扫描和监视系统可以包括产生烧蚀光束的消融光源和产生测量光束的测量光源。

35. 发明授权

US06671055B1 Interferometric sensors utilizing bulk sensing mediums extrinsic to the input/output optical fiber 失效
标题翻译：利用输入/输出光纤外部的体感测介质的干涉测量传感器
公开(公告)号：US06671055B1
公开(公告)日：2003-12-30
申请号：US09548972
申请日：2000-04-13
申请人： Thomas A. Wavering , Scott A. Meller , Jason W. Borinski , Wade J. Pulliam , Patrick M. Russler
发明人： Thomas A. Wavering , Scott A. Meller , Jason W. Borinski , Wade J. Pulliam , Patrick M. Russler
IPC分类号： G01B902
CPC分类号： G02B6/29398 , G01B9/02007 , G01B9/02023 , G01B9/02027 , G01B2290/25 , G02B6/29358
摘要： The present invention is directed toward an interferometric sensor that permits the simultaneous measurement of a change in more than one environmental condition. The interferometric sensor comprises an optical fiber and a plurality of sensing regions positioned in an operable relationship to the optical fiber. Each sensing region has partially reflective boundaries and produces an interferometric signal.
摘要翻译：本发明涉及一种允许同时测量多于一种环境条件的变化的干涉测量传感器。干涉测量传感器包括光纤和与光纤可操作的关系定位的多个感测区域。每个感测区域具有部分反射边界并产生干涉信号。

36. 发明授权

US5642194A White light velocity interferometer 失效
标题翻译：白光速度干涉仪
公开(公告)号：US5642194A
公开(公告)日：1997-06-24
申请号：US597082
申请日：1996-02-05
申请人： David J. Erskine
发明人： David J. Erskine
IPC分类号： G01B9/02 , G01P3/36 , G01P3/50 , G01P5/26 , G01S17/58
CPC分类号： G01P3/366 , G01B9/02004 , G01B9/02022 , G01B9/02028 , G01B9/02044 , G01B9/02045 , G01B9/0209 , G01B9/02097 , G01P3/50 , G01P5/26 , G01S17/58 , G01B2290/25 , G01B2290/35 , G01B2290/70
摘要： The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s.
摘要翻译：本发明是允许使用宽带和非相干照明的技术。虽然表示为白光测速，但该原理可应用于任何波现象。强大，紧凑或廉价的资源首次可用于远程目标测速。这些包括闪光灯和弧光灯，来自爆震的光，脉冲激光器，啁啾频率激光器和在几个波长下同时工作的激光器。该技术用来自白炽源的白光进行演示，以测量以16m / s移动的目标。

37. 发明授权

US5451772A Distributed fiber optic sensor 失效
标题翻译：分布式光纤传感器
公开(公告)号：US5451772A
公开(公告)日：1995-09-19
申请号：US180619
申请日：1994-01-13
申请人： Nadarajah Narendran
发明人： Nadarajah Narendran
IPC分类号： G01B9/02 , G01D5/353
CPC分类号： G01D5/35383 , G01B11/161 , G01B2290/25
摘要： A distributed optical fiber sensor for sensing physical characteristics of an object, such as strain, includes several discontinuities, each pair of discontinuities being placed at one specific location on the object. A laser beam is past through the fiber and the discontinuities generate components from the beams having parameters indicative of the respective physical characteristics. The components combine in a composite beam which is detected outside the beam and separated into the respective components.
摘要翻译：用于感测物体（例如应变）的物理特性的分布式光纤传感器包括若干不连续性，每对不连续性被放置在物体的一个特定位置。激光束通过光纤，并且不连续性从具有指示相应物理特性的参数的光束产生分量。这些部件组合在一个复合光束中，该光束在光束外被检测并分离成相应的部件。

38. 发明授权

US5270789A White light interferometric device adapted to define an absolute reference position 失效
标题翻译：适用于定义绝对参考位置的白光干涉仪
公开(公告)号：US5270789A
公开(公告)日：1993-12-14
申请号：US773437
申请日：1991-10-09
申请人： Lucien Falco , Guy Voirin , Olivier Parriaux
发明人： Lucien Falco , Guy Voirin , Olivier Parriaux
IPC分类号： G01B9/02 , G01B11/24 , G01B11/245 , G01D5/26
CPC分类号： G01B9/02027 , G01B9/02007 , G01B9/02028 , G01B9/0209 , G01D5/266 , G01B2290/25
摘要： An optical device utilizing white light interferometry, having a Fabry-Perot interferometer incorporated in a reference branch of the optical device. The succession of interference products occurs from a combination of the light traveling through the transmission branch with the light traveling through the reference branch which has undergone 0 to N+1 reflections in the Fabry-Perot interferometer. The interference product gives a series of equally spaced absolute marks.
摘要翻译：一种利用白光干涉测量的光学装置，其具有并入光学装置的参考分支中的法布里 - 珀罗干涉仪。干涉产物的继承发生在通过透射分支的光的组合与通过在法布里 - 珀罗干涉仪中经历0至N + 1次反射的参考分支的光的组合。干扰产物产生一系列相等间隔的绝对标记。

39. 发明授权

US4830496A Interferometer 失效
标题翻译：干涉仪
公开(公告)号：US4830496A
公开(公告)日：1989-05-16
申请号：US146851
申请日：1988-01-22
申请人： Niels O. Young
发明人： Niels O. Young
IPC分类号： G01B9/02
CPC分类号： G01B11/26 , G01B9/02019 , G01B2290/25
摘要： A reference mirror (50) in an interferometer is fixed in position with respect to a laser (34). A refractive block (40) having parallel upper and lower surfaces is mounted for pivoting about a pivot axis (60) parallel to the reference mirror (40). The refractive block (40) is disposed in the path of the light beam (36) produced by the laser (34), and it includes a partially reflective surface (42) on its lower face that divides the incident beam (36) into two components (44 and 46), which travel along different paths, in which they are reflected from different portions (48 and 54) of the surface of the reference mirror (50) and from different portions (52 and 56) of a reflective surface on the upper face of the refractive block (40). A second partially reflective coating (58) rejoins portions of the two components to form an exit beam (32) in which the radiation from the two beams interferes in accordance with the angle of the refractive block (40). The angle that the exit beam (32) makes with the surface of the reference mirror (50) is independent of the angle of the refractive block (40).
摘要翻译：干涉仪中的参考反射镜（50）相对于激光器（34）固定就位。具有平行的上表面和下表面的折射块（40）被安装用于围绕平行于参考镜（40）的枢转轴线（60）枢转。折射块（40）设置在由激光器（34）产生的光束（36）的路径中，并且其折射块（40）在其下表面上包括将入射光束（36）分成两部分的部分反射表面（42）组件（44和46）沿着不同的路径行进，其中它们从参考反射镜（50）的表面的不同部分（48和54）反射并且从反射表面的不同部分（52和56）折射块（40）的上表面。第二部分反射涂层（58）重新结合两个部件的部分以形成出射光束（32），其中来自两个光束的辐射根据折射块（40）的角度而干涉。出射光束（32）与参考反射镜（50）的表面形成的角度与折射块（40）的角度无关。

40. 发明授权

US4627722A Method and apparatus for optically measuring three-dimensional coordinates 失效
标题翻译：用于光学测量三维坐标的方法和装置
公开(公告)号：US4627722A
公开(公告)日：1986-12-09
申请号：US646638
申请日：1984-08-31
申请人： Robert A. Falk , Gary L. Phillis
发明人： Robert A. Falk , Gary L. Phillis
IPC分类号： G01B9/02 , G01B11/00
CPC分类号： G01B11/002 , G01B9/02032 , G01B9/02057 , G01B2290/25
摘要： The disclosed apparatus provides a point optical radiation source (i.e. point light source), at one or more distant points, the three-dimensional coordinates of which are to be measured relative to a known frame of reference. Each point light source emits light waves of a known wavelength which are received by the front plate of a multiple-beam interferometer means having a known angle of light acceptance. With respect to the light waves transmitted by each point light source and received by the interferometer means, a set of non-localized multiple-beam interference fringes are created within the interferometer means. A photo-electric detection means is provided a known distance from the back plate of the multiple-beam interferometer means and is positioned so that the interferometer means and photo-electric detection means have a common optical center axis. The intersection of such optical center axis and the plane defined by the back plate of the interferometer means establishes the origin of the known frame of reference. The photo-electric detection means both detects the two-dimensional position of at least the innermost fringe of each set of interference fringes, and transmits the detected positional information to a processor means by electric signals. The processor means employs the electric signals to determine the coordinate values for the center point of each set of interference fringes relative to the common optical center axis, and determines the radius of the innermost fringe of each set of interference fringes. Such determinations allow the processor means to calculate the three-dimensional coordinates of the distant points relative to the known frame of reference.
摘要翻译：所公开的装置在一个或多个远点处提供相对于已知的参考系来测量三维坐标的点光源（即点光源）。每个点光源发射已知波长的光波，其由具有已知的光接收角的多光束干涉仪装置的前板接收。对于由每个点光源发送并由干涉仪装置接收的光波，在干涉仪装置内产生一组非局部多光束干涉条纹。光电检测装置设置在与多光束干涉仪装置的背板已知的距离处，并且被定位成使得干涉仪装置和光电检测装置具有共同的光中心轴。这种光学中心轴与由干涉仪装置的背板限定的平面的交点确定了已知参考系的原点。光电检测装置检测至少每组干涉条纹的最内边缘的二维位置，并通过电信号将检测到的位置信息发送到处理器装置。处理器装置采用电信号来确定每组干涉条纹相对于公共光学中心轴的中心点的坐标值，并且确定每组干涉条纹的最内边缘的半径。这种确定允许处理器装置计算相对于已知参考系的远点的三维坐标。

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