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91. 发明申请

US20030146748A1 Sensor for optically measuring magnetic fields 失效
标题翻译：用于光学测量磁场的传感器
公开(公告)号：US20030146748A1
公开(公告)日：2003-08-07
申请号：US10294905
申请日：2002-11-15
申请人： Airak, Inc.
发明人： Paul Grems Duncan , John Alan Schroeder
IPC分类号： G01R033/02
CPC分类号： G01R15/245 , G01R15/246 , G01R33/0322
摘要： Described are improved transmissive magneto-optical sensors that may be used to determine the magnitude and phase of a magnetic field surrounding a conductor, and when in contact with the conductor, the surface temperature of the conductor. The magneto-optical sensor may be made to be symmetric around the direction of propagation of the internal light, enabling ease of manufacturing as well as automated assembly and calibration. The magneto-optical sensor may also be made to be symmetric about the plane determined by the Faraday rotator material, thus enabling reciprocating optical paths for increased vibration and birefringence immunity. The disclosed sensors preferably include cylindrically symmetrical components, thereby making the sensor readily mass-producible.
摘要翻译：描述了改进的透射式磁光传感器，其可以用于确定导体周围的磁场的大小和相位，以及当与导体接触时，导体的表面温度。可以使磁光传感器围绕内部光的传播方向对称，从而使制造方便以及自动组装和校准。磁光传感器也可以被制作为关于由法拉第转子材料确定的平面对称，从而使往复光学路径增加振动和双折射抗扰度。所公开的传感器优选地包括圆柱形对称的部件，从而使传感器容易地大规模生产。

92. 发明授权

US06512357B2 Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current 失效
标题翻译：用于光学检测磁极的偏振传感器和用于电流的光学检测的偏振传感器
公开(公告)号：US06512357B2
公开(公告)日：2003-01-28
申请号：US09771676
申请日：2001-01-29
申请人： Thomas Bosselmann , Stephan Mohr , Michael Willsch
发明人： Thomas Bosselmann , Stephan Mohr , Michael Willsch
IPC分类号： G01R33032
CPC分类号： G01R15/247 , G01R33/0322
摘要： A polarimetric sensor includes a sensor unit constructed as a permanently assembled unit having a polarizer, a sensor element and an analyzer. An input optical waveguide and an output optical waveguide with a core diameter of at least 100 &mgr;m are provided. A first light signal emerging from the input optical waveguide passes directly through the sensor unit and enters the output optical waveguide as a second light signal. An optical path of the first light signal through the sensor element is no longer than 50 times the core diameter of the output optical waveguide. No separate focussing or collimation optics are provided.
摘要翻译：偏振传感器包括被构造为具有偏振器，传感器元件和分析器的永久组装单元的传感器单元。提供具有至少100μm的芯直径的输入光波导和输出光波导。从输入光波导出射的第一光信号直接通过传感器单元，并作为第二光信号进入输出光波导。通过传感器元件的第一光信号的光路不超过输出光波导的纤芯直径的50倍。没有提供单独的聚焦或准直光学元件。

93. 发明授权

US06370288B1 Optical magnetic field sensor probe 失效
标题翻译：光磁传感器探头
公开(公告)号：US06370288B1
公开(公告)日：2002-04-09
申请号：US09384590
申请日：1999-08-27
申请人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
发明人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
IPC分类号： G02B600
CPC分类号： G02B6/2746 , G01R33/0322 , G02B6/241 , G02B6/32
摘要： An optical magnetic field sensor probe for detecting a magnetic field to be measured as an output light intensity, by disposing a polarizer, a magneto-optical device, and an analyzer mutually different in the transmission and polarization direction with respect to said polarizer, along the running direction of light, has an input optical fiber for feeding into to said polarizer through a first lens, and an output optical fiber for emitting an output light from said analyzer through a second lens, wherein said input optical fiber, said first lens, said magneto-optical device, said second lens and said output optical fiber are composed in a confocal optical system, and said first lens and said second lens are drum lenses.
摘要翻译：一种光磁传感器探针，用于通过设置相对于所述偏振器在透射和偏振方向上彼此不同的偏振器，磁光器件和分析仪来检测待测量的磁场作为输出光强度具有用于通过第一透镜馈送到所述偏振器的输入光纤，以及用于通过第二透镜从所述分析器发射输出光的输出光纤，其中所述输入光纤，所述第一透镜，所述第一透镜磁光装置，所述第二透镜和所述输出光纤由共焦光学系统组成，所述第一透镜和所述第二透镜为鼓透镜。

94. 发明申请

US20010043064A1 Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current 失效
标题翻译：用于光学检测磁极的偏振传感器和用于电流的光学检测的偏振传感器
公开(公告)号：US20010043064A1
公开(公告)日：2001-11-22
申请号：US09771676
申请日：2001-01-29
发明人： Thomas Bosselmann , Stephan Mohr , Michael Willsch
IPC分类号： G01R031/00
CPC分类号： G01R15/247 , G01R33/0322
摘要： A polarimetric sensor includes a sensor unit constructed as a permanently assembled unit having a polarizer, a sensor element and an analyzer. An input optical waveguide and an output optical waveguide with a core diameter of at least 100 nullm are provided. A first light signal emerging from the input optical waveguide passes directly through the sensor unit and enters the output optical waveguide as a second light signal. An optical path of the first light signal through the sensor element is no longer than 50 times the core diameter of the output optical waveguide. No separate focussing or collimation optics are provided.
摘要翻译：偏振传感器包括被构造为具有偏振器，传感器元件和分析器的永久组装单元的传感器单元。提供具有至少100μm的芯直径的输入光波导和输出光波导。从输入光波导出射的第一光信号直接通过传感器单元，并作为第二光信号进入输出光波导。通过传感器元件的第一光信号的光路不超过输出光波导的纤芯直径的50倍。没有提供单独的聚焦或准直光学元件。

95. 发明授权

US6160396A Optical magnetic field sensor probe 失效
公开(公告)号：US6160396A
公开(公告)日：2000-12-12
申请号：US384984
申请日：1999-08-30
申请人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
发明人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
IPC分类号： C01G29/00 , C30B29/28 , G01R33/032 , G02B6/24 , G02B6/26 , G02B6/32 , G02F1/09
CPC分类号： G02B6/2746 , G01R33/0322 , G02B6/241 , G02B6/32
摘要： An optical magnetic field sensor probe for detecting a magnetic field to be measured as an output light intensity, by disposing a polarizer, a magneto-optical device, and an analyzer mutually different in the transmission and polarization direction with respect to said polarizer, along the running direction of light, has an input optical fiber for feeding into to said polarizer through a first lens, and an output optical fiber for emitting an output light from said analyzer through a second lens, wherein said input optical fiber, said first lens, said magneto-optical device, said second lens and said output optical fiber are composed in a confocal optical system, and said first lens and said second lens are drum lenses.

96. 发明授权

US6143435A Magneto-optical thin-layer structure 失效
标题翻译：磁光薄层结构
公开(公告)号：US6143435A
公开(公告)日：2000-11-07
申请号：US842286
申请日：1997-04-23
申请人： Eugene Ivanotitch Il"Yashenko , Valentina Prokofiena Klin , Alexander Gennadievicj Soloviev
发明人： Eugene Ivanotitch Il"Yashenko , Valentina Prokofiena Klin , Alexander Gennadievicj Soloviev
IPC分类号： G02F1/09 , G01R33/032 , G11B11/105 , H01F10/24 , H01F10/28 , G11B5/64 , H01F10/26
CPC分类号： G01R33/0322 , H01F10/245 , H01F10/28 , G11B11/10547 , G11B11/10586
摘要： The invention relates to magneto-optical structures applicable in systems for optical processing of information, in sensors and converters of magnetic field. The technical result is comprised in increase of resolution and sensitivity, ensuring high value of Faraday rotation of polarized light and high speed of operation when pulses of external magnetic field are applied. In the magneto-optical structure, comprised of underlay 1 formed of a mono-crystal of gadolinium-gallium ferrite-garnet, on which deposed is a film 2 of bismuth containing gallium ferrite-garnet with vector 3 of magnetization lying in the plane of the film, crystallographic axis [100] 5 of the underlay mono-crystal 1 is offset relative to the perpendicular 4 to the underlay plane at an angle not exceeding the magnitude of deflection to the crystallographic axis [210] 6, preferably in the range from 0 deg to 4 deg inclusive, and the bismuth containing ferrite-garnet is doped with rare-earth elements, preferably thulium, gadolinium, lutetium or their combinations.
摘要翻译：本发明涉及适用于信息光学处理，传感器和磁场转换器的系统中的磁光结构。技术结果包括提高分辨率和灵敏度，确保施加外部磁场脉冲时偏振光法拉第旋转的高值和高速运行。在由钆 - 镓铁氧体 - 石榴石的单晶形成的底衬1构成的磁光结构中，其上设有含有镓铁氧体 - 石榴石的铋的膜2，其中磁铁的向量3位于底片单晶1的薄膜，晶轴5相对于底层平面的垂直线4偏移，角度不超过到结晶轴[210] 6的偏转的大小，优选地在0的范围内含有铋的铁酸盐 - 石榴石掺杂稀土元素，优选ium，钆，镥或它们的组合。

97. 发明授权

US6037770A Optical magnetic field sensor probe having drum lenses 失效
标题翻译：具有鼓镜头的光磁传感器探头
公开(公告)号：US6037770A
公开(公告)日：2000-03-14
申请号：US803031
申请日：1997-02-19
申请人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
发明人： Nobuki Itoh , Yukiko Yoshikawa , Satoshi Ishizuka , Hisashi Minemoto , Daisuke Ishiko
IPC分类号： C01G29/00 , C30B29/28 , G01R33/032 , G02B6/24 , G02B6/26 , G02B6/32 , G02F1/09 , G01R31/02
CPC分类号： G02B6/2746 , G01R33/0322 , G02B6/241 , G02B6/32
摘要： An optical magnetic field sensor probe for detecting a magnetic field to be measured as an output light intensity, by disposing a polarizer, a magneto-optical device, and an analyzer mutually different in the transmission and polarization direction with respect to said polarizer, along the running direction of light, has an input optical fiber for feeding into to said polarizer through a first lens, and an output optical fiber for emitting an output light from said analyzer through a second lens, wherein said input optical fiber, said first lens, said magneto-optical device, said second lens and said output optical fiber are composed in a confocal optical system, and said first lens and said second lens are drum lenses.
摘要翻译：一种光磁传感器探针，用于通过设置相对于所述偏振器在透射和偏振方向上彼此不同的偏振器，磁光器件和分析仪来检测待测量的磁场作为输出光强度具有用于通过第一透镜馈送到所述偏振器的输入光纤，以及用于通过第二透镜从所述分析器发射输出光的输出光纤，其中所述输入光纤，所述第一透镜，所述第一透镜磁光装置，所述第二透镜和所述输出光纤由共焦光学系统组成，所述第一透镜和所述第二透镜为鼓透镜。

98. 发明授权

US5982174A External cavity fiber Fabry-Perot magnetometer 失效
标题翻译：外腔纤维法布里 - 珀罗磁强计
公开(公告)号：US5982174A
公开(公告)日：1999-11-09
申请号：US896294
申请日：1997-07-21
申请人： Richard B. Wagreich , Christopher C. Davis
发明人： Richard B. Wagreich , Christopher C. Davis
IPC分类号： G01R33/032 , G01J4/00
CPC分类号： G01R33/0322
摘要： A magnetometer uses a material exhibiting the Faraday effect, in which the polarization of light transmitted through the material is changed in response to a magnetic field. When the material is placed in a Fabry-Perot cavity, multiple reflections of the light within the Fabry-Perot cavity increase the change in polarization and thus the sensitivity of the magnetometer. Other effects that alter the polarization of light can be employed instead.
摘要翻译：磁力计使用表现出法拉第效应的材料，其中透过材料的光的偏振响应于磁场而改变。当材料放置在法布里 - 珀罗腔中时，法布里 - 珀罗腔内的光的多次反射会增加极化的变化，从而增加磁力计的灵敏度。可以采用改变光的偏振的其他效果。

99. 发明授权

US5736737A Concatenated magneto-optic field sensors 失效
标题翻译：串联磁光场传感器
公开(公告)号：US5736737A
公开(公告)日：1998-04-07
申请号：US561810
申请日：1995-11-22
申请人： Jay W. Dawson , Trevor W. MacDougall
发明人： Jay W. Dawson , Trevor W. MacDougall
IPC分类号： G01R15/24 , G01R19/00 , G01R33/032 , H01J5/16 , G01J4/00
CPC分类号： G01R33/0322
摘要： A Faraday effect current sensor uses a plurality of concatenated field sensors, with a single light source and a single detector. At least two Faraday effect sensing elements (single mode sensing fibers) are used, preferably at least three, the sensing elements being interconnected by fusion spliced, polarizing fibers. The sensing fibers may be oriented generally straight, and arranged to form a regular polygon, e.g., an equilateral triangle for a three-element sensor. The locations of the splices between the sensing fibers and the polarizing fibers may further be advantageously arranged such that the sensing fibers form a substantially closed path which may be placed about the current-carrying conductor. The linearity of the sensor response may be improved by selecting an appropriate value of the bias angle of each sensing element, optimally equal to arctan�1/.sqroot.(2n-1)! where n is the number of sensing elements. The present invention may also be adapted for use as a differential current sensor wherein each sensing element is housed in a separate package allowing the elements to be placed about different conductors at a Y-branch, or about a single conductor at different locations.
摘要翻译：法拉第效应电流传感器使用多个级联场传感器，具有单个光源和单个检测器。使用至少两个法拉第效应感测元件（单模感测光纤），优选地至少三个，感测元件通过熔接的偏振光纤相互连接。感测纤维可以大致直线定向，并且被布置成形成用于三元件传感器的正多边形，例如等边三角形。感测纤维和偏振光纤之间的接头的位置可以进一步有利地布置成使得感测纤维形成基本上封闭的路径，其可以放置在载流导体周围。可以通过选择每个感测元件的偏置角的适当值来最佳地等于arctan [1 / 2ROOT（2n-1）]，其中n是感测元件的数量，可以改善传感器响应的线性。本发明还可以适用于差分电流传感器，其中每个感测元件容纳在单独的封装中，允许将元件放置在Y分支处的不同导体周围，或者在不同位置处围绕单个导体放置。

100. 发明授权

US5493222A Reflection type magnetooptic sensor head with faraday rotator 失效
标题翻译：反射型磁光传感器头与法拉第旋转器
公开(公告)号：US5493222A
公开(公告)日：1996-02-20
申请号：US56881
申请日：1993-05-05
申请人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
发明人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
IPC分类号： G01P3/36 , G01P3/486 , G01R33/032
CPC分类号： G01R33/0322 , G01P3/36 , G01P3/486
摘要： A reflection type magnetooptic sensor head. The respective structural elements are aligned in the order of a light source, light inputting/outputting path, polarizer, Faraday rotator, and reflecting film. The Faraday rotator is made of a (111) bismuth-substituted iron garnet single crystal film. The Faraday rotator is positioned such that the optical axis of the light incident upon the surface of the Faraday rotator makes an angle of 10 to 70 degrees with an axis normal to the surface of the Faraday rotator. The sensor head may further include two identical rectangular prisms positioned such that the Faraday rotator is sandwiched between the slanting surfaces of the prisms.
摘要翻译：反射型磁光传感头。各个结构元件按光源，光输入/输出路径，偏振器，法拉第旋转器和反射膜的顺序排列。法拉第旋转器由（111）铋取代的铁石榴石单晶膜制成。法拉第旋转器的定位使得入射到法拉第旋转器表面的光的光轴与法拉第转子表面垂直的轴形成10度至70度的角度。传感器头还可以包括两个相同的矩形棱镜，这些棱镜定位成使得法拉第旋转器夹在棱镜的倾斜表面之间。

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