公开(公告)号：US5264914A

公开(公告)日：1993-11-23

申请号：US11833

申请日：1993-02-01

申请人： Shigeru Oho ,  Hisao Sonobe ,  Junichi Makino ,  Hiroshi Kajioka ,  Tatsuya Kumagai

发明人： Shigeru Oho ,  Hisao Sonobe ,  Junichi Makino ,  Hiroshi Kajioka ,  Tatsuya Kumagai

IPC分类号： G01C19/72

CPC分类号： G01C19/72

摘要： An interference sensor passes radiation from a source and a polariser to a loop of optical fiber so that radiation beams circulate in opposite directions around the loop and interfere. The loop contains an optical phase modulator which imposes an optical modulator on the radiation beams circulating on the loop. A converter detects the interfering and modulated beams and generates an interference signal which is then processed by an analyser. The interference in the loop is dependent on rotation of the loop and therefore analysis of the interference signal permits that rotation to be measured. In the present invention, the interference signal is (i) sampled at a frequency different from that of the optical modulation, or (ii) electronically modulated in the analyser at a frequency different from that of the optical modulation, or (iii) optically modulated in the loop at a second optical modulation frequency. The analysis in the analyser may be in the frequency domain (i.e. consideration being given to the frequency of the interference signal) or in the time domain (i.e. independent of frequency).

摘要翻译： 干扰传感器将来自源极和偏振器的辐射传递到光纤环，使得辐射束在环绕环路的相反方向上循环并且干涉。 该环路包含光学相位调制器，该光相位调制器在循环中的辐射束上施加光学调制器。 A转换器检测干扰和调制的波束并产生干扰信号，然后由分析仪进行处理。 环路中的干扰取决于环路的旋转，因此干扰信号的分析允许测量旋转。 在本发明中，干扰信号是（i）以与光调制不同的频率进行采样，或者（ii）在分析仪中以与光调制不同的频率进行电子调制，或（iii）光调制 在第二光调制频率的环路中。 分析仪中的分析可能处于频域（即考虑到干扰信号的频率）或时域（即独立于频率）。

公开(公告)号：US5208652A

公开(公告)日：1993-05-04

申请号：US691977

申请日：1991-04-26

申请人： Hisao Sonobe ,  Shigeru Oho ,  Junichi Makino ,  Yasuhiro Gunji ,  Hiroshi Kajioka ,  Tatsuya Kumagai

发明人： Hisao Sonobe ,  Shigeru Oho ,  Junichi Makino ,  Yasuhiro Gunji ,  Hiroshi Kajioka ,  Tatsuya Kumagai

IPC分类号： G01C19/72

CPC分类号： G01C19/72

摘要： In an optical fiber gyroscope, the sensitivity thereof is optimized with a phase bias afforded by utilizing the phase characteristics of an optical branching/coupling unit. Further, the fluctuation of the intensity of a light source and the error and secular change of the phase characteristics of the optical branching/coupling unit are compensated by an electronic circuit. Moreover, an optical fiber loop is located in a heat insulation casing so as not to be affected by an ambient temperature change, thereby to prevent the drift of the optical fiber gyroscope attributed to an temperature change. Thus, the optical fiber gyroscope of high measurement accuracy is provided.

公开(公告)号：US4796993A

公开(公告)日：1989-01-10

申请号：US181316

申请日：1988-04-13

申请人： Hisao Sonobe ,  Junichi Makino ,  Shigeru Oho ,  Masahiro Matsumoto ,  Kouji Kitano ,  Hiroshi Araki

发明人： Hisao Sonobe ,  Junichi Makino ,  Shigeru Oho ,  Masahiro Matsumoto ,  Kouji Kitano ,  Hiroshi Araki

IPC分类号： G01C19/72 ,  G01B9/02

CPC分类号： G01C19/72

摘要： An interface signal produces in a phase modulation type fiber optic gyroscope is classified into odd and even groups at a synchronous detector. An angular velocity is processed by the signals of even groups and odd groups.

摘要翻译： 在相位调制型光纤陀螺仪中产生的接口信号在同步检波器中分为奇数组和偶数组。 角速度由偶数组和奇数组的信号处理。

公开(公告)号：US08302476B2

公开(公告)日：2012-11-06

申请号：US12376244

申请日：2006-09-15

申请人： Masahiro Matsumoto ,  Yasushi Okada ,  Hisao Sonobe

发明人： Masahiro Matsumoto ,  Yasushi Okada ,  Hisao Sonobe

IPC分类号： G01C19/56

CPC分类号： G01C19/5726 ,  G01C19/5747

摘要： Disclosed herein is an angular velocity measuring device including: first and second oscillators elastically supported on a substrate; an elastic connecting beam elastically connecting the first and the second oscillator; and an oscillating means for oscillating the first and the second oscillator for differential oscillation, wherein a viscous force generating means for suppressing in-phase oscillation of the first and the second oscillator is incorporated into the elastic connecting beam.

摘要翻译： 本文公开了一种角速度测量装置，包括：弹性地支撑在基板上的第一和第二振荡器; 弹性连接梁弹性连接第一和第二振荡器; 以及用于振荡用于差动振荡的第一和第二振荡器的振荡装置，其中用于抑制第一和第二振荡器的同相振荡的粘性力产生装置并入弹性连接梁中。

公开(公告)号：US5681989A

公开(公告)日：1997-10-28

申请号：US560981

申请日：1995-11-20

申请人： Atsushi Kanke ,  Hisao Sonobe ,  Shigeru Oho ,  Kaoru Uchiyama

发明人： Atsushi Kanke ,  Hisao Sonobe ,  Shigeru Oho ,  Kaoru Uchiyama

IPC分类号： F02D41/18 ,  G01F1/696 ,  G01F1/698 ,  G01F1/68

CPC分类号： G01F1/6965 ,  F02D41/187 ,  G01F1/698

摘要： The invention provides an apparatus for measuring intake air for an internal combustion engine by means of a detecting unit including a heat generating resistor, and a flow amount arithmetic unit for calculating an air flow amount on the basis of the output from the detecting unit. The measuring apparatus further includes an equalizer circuit for regulating the amplitude or phase of the output signal from the detecting unit, between the detecting unit and the flow amount arithmetic unit.

摘要翻译： 本发明提供了一种用于通过包括发热电阻器的检测单元测量内燃机的进气的装置，以及用于基于来自检测单元的输出来计算空气流量的流量计算单元。 测量装置还包括用于调节来自检测单元的输出信号在检测单元和流量运算单元之间的幅度或相位的均衡器电路。

公开(公告)号：US5555235A

公开(公告)日：1996-09-10

申请号：US305490

申请日：1994-09-13

申请人： Tatsuya Kumagai ,  Hiroshi Kajioka ,  Munehiro Akiyama ,  Shigeru Oho ,  Hisao Sonobe

发明人： Tatsuya Kumagai ,  Hiroshi Kajioka ,  Munehiro Akiyama ,  Shigeru Oho ,  Hisao Sonobe

IPC分类号： G01C19/72

CPC分类号： G01C19/721

摘要： A signal processing circuit of an optical fiber gyro comprises a memory for storing data measured in the signal processing circuit in accordance with angular velocities applied to an optical fiber sensing loop at preparatory stage, and the applied angular velocities. In operation, the memory is accessed in accordance with data obtained in the signal processing circuit at an operation stage, so that an angular velocity is read from the memory without complicated calculation.

摘要翻译： 光纤陀螺仪的信号处理电路包括存储器，用于根据在准备阶段施加到光纤感测回路的角速度和所施加的角速度来存储在信号处理电路中测量的数据。 在操作中，根据在操作阶段在信号处理电路中获得的数据访问存储器，从而在没有复杂计算的情况下从存储器读取角速度。

公开(公告)号：US5396327A

公开(公告)日：1995-03-07

申请号：US982206

申请日：1992-11-25

申请人： Tatsuya Kumagai ,  Hiroshi Kajioka ,  Hisao Sonobe

发明人： Tatsuya Kumagai ,  Hiroshi Kajioka ,  Hisao Sonobe

IPC分类号： G01C19/72

CPC分类号： G01C19/721

摘要： The light emitted from a laser diode is divided into two lights and the divided lights are introduced into a sensing loop such that the lights propagate through the sensing loop clockwise and counterclockwise. These lights are combined by a light receiving device and then a signal processing circuit calculates an angular velocity .OMEGA.'. The temperature near the laser diode is detected to obtain a correction value Kt, a current supplied to the laser diode is detected to obtain a correction value Ki and a corrected angular velocity .OMEGA. is obtained by calculating the product of the angular velocity with the correction values Ki and Kt, i.e., .OMEGA.=.OMEGA.'*Ki*Kt.

摘要翻译： 从激光二极管发射的光被分成两个光，并且将分光引入到感测环中，使得光顺时针和逆时针传播通过感测环。 这些灯由光接收装置组合，然后信号处理电路计算角速度OMEGA'。 检测激光二极管附近的温度以获得校正值Kt，检测提供给激光二极管的电流以获得校正值Ki，并通过计算角速度与校正值的乘积来获得校正角速度OMEGA Ki和Kt，即OMEGA = OMEGA'* Ki * Kt。