公开(公告)号：US20090174885A1

公开(公告)日：2009-07-09

申请号：US12348262

申请日：2009-01-02

申请人： Chian Chiu Li

发明人： Chian Chiu Li

IPC分类号： G01N21/45 ,  G01J3/45 ,  G01B9/02

CPC分类号： G01B9/02051 ,  G01B9/02027 ,  G01B9/02072 ,  G01B9/02092 ,  G01B2290/45 ,  G01J1/0214 ,  G01J9/0246 ,  G01J2005/583 ,  G01K11/00 ,  G01P15/093 ,  G01P2015/0828

摘要： Disclosed is a low-cost high-resolution compact accelerometer which utilizes multiple self-mixing optical interferometers. The device is also a micro-opto-electro-mechanical systems (MOEMS) sensor. The interferometers are used to detect acceleration as well as monitor the wavelength, temperature, and refractive index and perform differential measurements. In addition, photodetectors are employed to monitor the input optical power.

摘要翻译： 公开了一种低成本的高分辨率紧凑型加速度计，其使用多个自混合光学干涉仪。 该器件还是微光电机械系统（MOEMS）传感器。 干涉仪用于检测加速度以及监测波长，温度和折射率，并进行差分测量。 此外，光电探测器用于监视输入光功率。

公开(公告)号：US20090101804A1

公开(公告)日：2009-04-23

申请号：US12297464

申请日：2007-04-18

申请人： Kim Phan Le

发明人： Kim Phan Le

IPC分类号： H01J40/14

CPC分类号： G06F3/0338 ,  G01P15/093 ,  G05G2009/04759 ,  G06F3/0304

摘要： Detection circuits (1) for detecting movements of movable objects (2) such as joysticks are provided with first detectors (100) for detecting first movements of the joysticks in first directions, comprising first detection units (101) for detecting a presence/absence of light spots (3), locations of the light spots (3) depending on said first movements, and with second detectors (200) for detecting second movements of the joysticks in second directions, comprising second detection units (201) for detecting first second intensities of the light spots (3), intensities of the light spots (3) depending on said second movements. Such detection circuits (1) are less sensitive to misalignment of components during an assembly and simpler to produce and less costly. The second detectors (200) are entirely located within the light spot (3) independently from positions of the joysticks and the first and third detectors are partly located within the light spot (3) dependently on positions of the joysticks. The detection units (101) comprise photo diodes (120) and transistors (121) for digitizing the signals from the photo diodes (120).

摘要翻译： 用于检测诸如操纵杆的可移动物体（2）的移动的检测电路（1）设置有用于检测操纵杆在第一方向上的第一移动的第一检测器（100），包括用于检测操纵杆的存在/不存在的第一检测单元（101） 光点（3），取决于所述第一移动的光点（3）的位置，以及用于检测操纵杆在第二方向上的第二移动的第二检测器（200），包括用于检测第一第二强度的第二检测单元 的光斑（3）的强度，取决于所述第二移动的光斑（3）的强度。 这种检测电路（1）在组装期间对组件的未对准不那么敏感，并且制造更简单并且成本更低。 第二检测器（200）独立于操纵杆的位置完全位于光点（3）内，并且第一和第三检测器部分地位于光点（3）内，这取决于操纵杆的位置。 检测单元（101）包括用于使来自光电二极管（120）的信号进行数字化的光电二极管（120）和晶体管（121）。

公开(公告)号：US07503215B2

公开(公告)日：2009-03-17

申请号：US11777799

申请日：2007-07-13

申请人： Arne Berg ,  Torbjoern Heglum

发明人： Arne Berg ,  Torbjoern Heglum

IPC分类号： G01P15/08 ,  G01P15/00

CPC分类号： G01V1/181 ,  G01H9/004 ,  G01P15/093 ,  G01V2210/1427

摘要： Accelerometers for determining acceleration and methods of fabricating an accelerometer are disclosed. In one embodiment, the accelerometer includes a frame, a mass movably suspended on the frame, a fixed element having a rounded surface that does not move with respect to the frame, a movable element having a rounded surface that moves with the mass, and a sensing coil of optical waveguide wrapped around the rounded surfaces to detect movement of the mass in response to acceleration based on interferometric sensing of a change in length of the sensing coil. A method of fabricating the accelerometer includes suspending the mass in the frame and wrapping the optical waveguide around the rounded surfaces. Sensitivity and low fabrication cost of the accelerometers enables their use for integration within an ocean bottom seismic cable. Further, the accelerometer may be an in-line or a cross-line accelerometer depending on the arrangement within the frame.

摘要翻译： 公开了用于确定加速度的加速度计和制造加速度计的方法。 在一个实施例中，加速度计包括框架，可移动地悬挂在框架上的块体，具有相对于框架不移动的圆形表面的固定元件，具有与质量块一起移动的圆形表面的可移动元件，以及 光波导的感测线圈缠绕在圆形表面上，以基于感测线圈的长度变化的干涉测量来响应于加速度检测质量的移动。 制造加速度计的方法包括将质量块悬挂在框架中并将光波导包围在圆形表面周围。 加速度传感器的灵敏度和低制造成本使其可用于集成在海底地震电缆内。 此外，取决于框架内的布置，加速度计可以是串联或交叉线加速度计。

公开(公告)号：US07406868B2

公开(公告)日：2008-08-05

申请号：US11460985

申请日：2006-07-30

申请人： Mykola G. Chernyak ,  Gennadiy A. Skrypkovskyy

发明人： Mykola G. Chernyak ,  Gennadiy A. Skrypkovskyy

IPC分类号： G01P3/00

CPC分类号： G01P15/093 ,  G01P15/132

摘要： A compensating accelerometer includes a housing, and a sensing element mounted in the housing. The sensing element includes a pendulum flexibly mounted on a base. The sensing element includes a coil mounted on a movable plate, a curtain having a slit, and a load mass affixed to the curtain. An angle sensor within the housing includes the curtain, a fork, a light source and a differential light detector. A momentum sensor within the housing includes a permanent magnet, an inner magnetic conductor, an outer magnetic conductor and the coil. The permanent magnet is magnetized in a direction of an axis of the pendulum. A stopper is used to adjust position of the fork. A spring is on opposite side of the fork, for taking up slack in the fork. A fixator has an eccentric, for adjusting a gap between the curtain and the light detector.

摘要翻译： 补偿加速度计包括壳体和安装在壳体中的感测元件。 传感元件包括一个灵活地安装在基座上的摆锤。 感测元件包括安装在可移动板上的线圈，具有狭缝的帘幕和固定在帘幕上的装载块。 壳体内的角度传感器包括窗帘，叉子，光源和差分光检测器。 壳体内的动量传感器包括永磁体，内磁导体，外磁导体和线圈。 永磁体沿摆锤的轴线方向被磁化。 使用止动器来调节叉子的位置。 一个弹簧在叉子的相对侧，用于在叉子上松动。 固定器具有偏心件，用于调节窗帘和光检测器之间的间隙。

公开(公告)号：US07382002B2

公开(公告)日：2008-06-03

申请号：US11009438

申请日：2004-12-09

申请人： Henry C. Abbink

发明人： Henry C. Abbink

IPC分类号： H01L29/768 ,  H01L31/08

CPC分类号： H01L25/042 ,  G01P15/093 ,  H01L31/02024 ,  H01L2224/48091 ,  H01L2924/00014

摘要： An apparatus comprising at least one multilayer wafer includes a device layer adjacent to a barrier layer, and the device layer includes at least two photoconductive regions separated by an etched channel extending through the device layer. In some instances the apparatus may be an accelerometer having two photodiodes formed on a silicon-on-insulator (SOI) wafer with the photodiodes defined by one or more etched channels extending through the device layer of the SOI wafer. Also disclosed are methods for forming such an apparatus.

摘要翻译： 包括至少一个多层晶片的装置包括与阻挡层相邻的器件层，并且器件层包括由延伸穿过器件层的蚀刻通道隔开的至少两个光电导区域。 在一些情况下，该装置可以是具有形成在绝缘体上硅（SOI）晶片上的两个光电二极管的加速度计，其中光电二极管由延伸穿过SOI晶片的器件层的一个或多个蚀刻通道限定。 还公开了形成这种装置的方法。

公开(公告)号：US07379630B2

公开(公告)日：2008-05-27

申请号：US11250709

申请日：2005-10-07

申请人： Nicholas Lagakos ,  Joseph A Bucaro

发明人： Nicholas Lagakos ,  Joseph A Bucaro

IPC分类号： G02B6/00

CPC分类号： G01L9/0077 ,  G01L7/086 ,  G01P15/093 ,  G02B6/06 ,  G02B6/2817 ,  G02B6/3512 ,  G02B6/3558 ,  G02B6/3594 ,  G02B2006/12138

摘要： A multiplexed fiber optic sensor system including a first optical fiber having a first end arranged to receive light from a light souce, at least two optical fibers having diameters smaller than the first optical fiber, and at least two fiber optic sensors, each of the at least two smaller diameter optical fibers arranged between the first optical fiber and one of the sensors for transmitting light from the first optical fiber to that sensor. The sensors can be static or dynamic pressure sensors, strain sensors, temperature sensors or other environmental sensors.

摘要翻译： 一种复用光纤传感器系统，包括第一光纤，第一光纤具有布置成从光源接收光的第一端，具有小于第一光纤的直径的至少两根光纤，以及至少两根光纤传感器， 布置在第一光纤和用于将光从第一光纤传输到该传感器的传感器之一中的至少两个较小直径的光纤。 传感器可以是静态或动态压力传感器，应变传感器，温度传感器或其他环境传感器。

公开(公告)号：US07349591B2

公开(公告)日：2008-03-25

申请号：US11355281

申请日：2006-02-15

申请人： Steven J. Maas

发明人： Steven J. Maas

IPC分类号： G02B6/00

CPC分类号： G01P15/093 ,  G01P1/023 ,  G01P15/18

摘要： An optical accelerometer includes means for changing the length of at least one optical fiber in response to acceleration functionally coupled to the at least one optical fiber. The fiber and the means for changing length are enclosed in a pressure compensated housing. The housing is filled with a substantially incompressible fluid or gel.

摘要翻译： 光学加速度计包括响应于功能耦合到至少一根光纤的加速度来改变至少一根光纤的长度的装置。 纤维和改变长度的装置被封装在压力补偿的外壳中。 壳体填充有基本不可压缩的流体或凝胶。

公开(公告)号：US07222534B2

公开(公告)日：2007-05-29

申请号：US11095860

申请日：2005-03-31

申请人： Steven J. Maas ,  D. Richard Metzbower

发明人： Steven J. Maas ,  D. Richard Metzbower

IPC分类号： G01P15/00 ,  G01V7/00

CPC分类号： G01V1/184 ,  G01C9/00 ,  G01H9/004 ,  G01P15/093

摘要： An optical accelerometer includes a beam and at least one optical fiber affixed to one side of the beam such that deflection of the beam changes a length of the optical fiber. A device for sensing the change in length of the optical fiber is functionally coupled to the at least one fiber. A seismic sensor system includes at least two accelerometers, oriented such that their sensitive axes are at least partially aligned along mutually orthogonal directions. Each accelerometer includes a beam, and at least one optical fiber affixed to one side of the beam such that deflection of the beam changes a length of the at least one optical fiber. A device for sensing the change in length of the optical fiber is functionally coupled to the at least one fiber of each accelerometer.

摘要翻译： 光学加速度计包括光束和固定在光束的一侧的至少一个光纤，使得光束的偏转改变光纤的长度。 用于感测光纤的长度变化的装置在功能上耦合到至少一个光纤。 地震传感器系统包括至少两个加速度计，其被定向成使得其敏感轴线沿着相互正交的方向至少部分地对准。 每个加速度计包括一个光束，以及固定在光束一侧的至少一个光纤，使得光束的偏转改变至少一根光纤的长度。 用于感测光纤长度变化的装置在功能上耦合到每个加速度计的至少一根光纤。

公开(公告)号：US20060162452A1

公开(公告)日：2006-07-27

申请号：US10526272

申请日：2003-09-02

申请人： Roland Moser ,  Jan Sandtner ,  Francois Barrot

发明人： Roland Moser ,  Jan Sandtner ,  Francois Barrot

IPC分类号： G01P3/44

CPC分类号： G01V7/00 ,  F16C32/0436 ,  F16C32/0444 ,  F16C39/063 ,  G01C9/06 ,  G01C9/10 ,  G01C19/24 ,  G01P15/093 ,  G01P15/131 ,  G01P15/18 ,  G01V1/181

摘要： The invention concerns an inertial sensor or an actuator based on diamagnetic levitation, said inertial sensor or actuator comprising support means serving as main support body for an inertial sensor or for an actuator, a two dimensional array of permanent magnets and a diamagnetic element facing the said array characterized in that said diamagnetic material constitutes the inertial mass or the moving part of the actuator.

公开(公告)号：US20060104561A1

公开(公告)日：2006-05-18

申请号：US11164113

申请日：2005-11-10

申请人： Gennadii Ivtsenkov

发明人： Gennadii Ivtsenkov

IPC分类号： G02B6/00

CPC分类号： G01H9/004 ,  G01D5/344 ,  G01D5/35351 ,  G01F1/206 ,  G01F1/28 ,  G01F1/80 ,  G01L1/243 ,  G01L9/0007 ,  G01L9/0032 ,  G01L9/0039 ,  G01P15/093 ,  G01P15/18

摘要： A fiber optic polarimetric strain sensor and associated data acquisition system capable of all-optical measurements of physical parameters, such as structural strain, gas and liquid pressure, acceleration and vibration, gas and liquid flow rate, and force without fire and explosion hazards associated with conventional strain gage technologies, such as resistance foil strain gages. The polarimetric strain sensor houses a sensitive element—a length of single mode optic fiber—changing polarization of a single-mode optical signal running in the fiber under some mechanical affects, specifically twisting and radial compressing. A linearly-polarized light passes the sensor, which causes polarization deviation of the light, particularly, polarization plane rotation under mentioned above twisting or compressive stresses applied to a sensitive element of the sensor. A multi-channel time division multiplexing data acquisition system that includes polarization analyzer indicates the polarization state deviation caused by the strain, so allow measuring the parameters. The invention may be embodied for measurements of any phenomenon that can be transformed in stress on an optical fiber.

摘要翻译： 一种光纤偏振应变传感器和相关的数据采集系统，能够对物理参数进行全光学测量，如结构应变，气体和液体压力，加速度和振动，气体和液体流速以及与此相关的无火灾和爆炸危险的力 常规应变计技术，如电阻箔应变计。 偏振应变传感器容纳一个敏感元件 - 在一些机械影响下，特别是扭曲和径向压缩，在光纤中运行的单模光信号的单模光纤变化极化的长度。 线性偏振光通过传感器，这导致光的偏振偏差，特别是在上述扭转或压缩应力施加到传感器的敏感元件上的偏振面旋转。 包括偏振分析仪的多通道时分复用数据采集系统表示由应变引起的极化状态偏差，因此允许测量参数。 本发明可以被实施用于测量可以在光纤上应力变化的任何现象。