公开(公告)号：US4658647A

公开(公告)日：1987-04-21

申请号：US745642

申请日：1985-06-17

申请人： Yasuo Shintani ,  Kazuhiro Sakuma ,  Hisashi Yabe ,  Hirohito Ito

发明人： Yasuo Shintani ,  Kazuhiro Sakuma ,  Hisashi Yabe ,  Hirohito Ito

IPC分类号： G01P15/125 ,  G01P1/00 ,  G01P15/13

CPC分类号： G01P1/006 ,  G01P2015/0828

摘要： An accelerometer comprises a pair of stators, a permanent magnet arranged within each of the stators, arcuate support portions diametrically opposed to each other on the surface of each stator, a pair of ring members each of which is positioned on the arcuate support portions of a stator, and a support ring with a flapper interposed between the support ring members. The flapper is connected to the supporting ring by two hinge portions. On each side of the flapper is a bobbin on which a coil is wound, the coils being connected to an external circuit. All of the component elements of the accelerometer are constructed and designed so as to avoid stress depending upon a change in ambient temperature.

摘要翻译： 加速度计包括一对定子，布置在每个定子内的永磁体，在每个定子的表面上彼此直径相对的弓形支撑部分，一对环形构件，每个定位在一个定子的弓形支撑部分上 定子和具有插入在支撑环构件之间的挡板的支撑环。 挡板通过两个铰链部分连接到支撑环。 在挡板的每一侧是卷绕有线圈的线轴，线圈连接到外部电路。 加速度计的所有组成元件被构造和设计，以避免根据环境温度变化的应力。

公开(公告)号：US4887467A

公开(公告)日：1989-12-19

申请号：US238865

申请日：1988-08-30

申请人： Kazuhiro Sakuma ,  Yasuhiko Fukumoto ,  Akihiro Tomioka

发明人： Kazuhiro Sakuma ,  Yasuhiko Fukumoto ,  Akihiro Tomioka

IPC分类号： G01P15/12 ,  G01P1/00 ,  G01P15/13

CPC分类号： G01P1/006 ,  G01P15/132

摘要： A temperature-compensating circuit for a capacitive or prezoelectric resistive accelerometer comprising a flexure with torquer coils subjected to physical changes in response to the linear accelerations, capacitive or piezoelectric resistive elements for detecting strain of the flexure, elements for amplifying the detected output and a negative feedback amplifier for supplying the output to the torquer coils. The output of the piezoelectric resistive element and the resistance of the torquer coils are affected considerably by the temperature change whereby the gain of the feedback amplifier changes. Accordingly, in the circuit of the present invention, the temperature change in the total gain of the accelerometer is removed by adding resistance elements to the negative feedback amplifier so as to cancel the positive temperature coefficient of resistance of the torquer coil and other elements.

摘要翻译： 一种用于电容或前置电阻阻抗加速度计的温度补偿电路，包括具有响应于线性加速度的物理变化的扭曲线圈的挠曲，用于检测挠曲应变的电容或压电电阻元件，用于放大检测到的输出的元件和负的 反馈放大器，用于将输出提供给绞盘线圈。 压电电阻元件的输出和绞盘线圈的电阻受到温度变化的显着影响，反馈放大器的增益变化。 因此，在本发明的电路中，通过向负反馈放大器增加电阻元件来消除加速度计的总增益的温度变化，以消除绞盘线圈和其它元件的正电阻的温度系数。

公开(公告)号：US5085501A

公开(公告)日：1992-02-04

申请号：US477559

申请日：1990-02-09

申请人： Kazuhiro Sakuma ,  Aritaka Ohno ,  Eiichi Asami ,  Ryoji Kaku

发明人： Kazuhiro Sakuma ,  Aritaka Ohno ,  Eiichi Asami ,  Ryoji Kaku

IPC分类号： G01C19/66 ,  G01C19/72 ,  G02B6/44

CPC分类号： G01C19/722 ,  G02B6/4457

摘要： In a fiber optic gyroscope in which light from a light source is split into two beams for supply to one and the other end of an optical fiber coil respectively, and the two beams having propagated through the optical fiber coil and emitted the one and the other end thereof are coupled together for supply to a photodetector, there are separately formed on an optical integrated circuit substrate two optical waveguide couplers, each comprising a trunk and a pair of branches extending therefrom. The pair of branches of a first one of the two optical waveguide couplers are connected to the light source and the photodetector, respectively, and the pair of branches of the second optical waveguide coupler are connected to the one and the other end of the optical fiber coil, respectively. The trunks of the first and second optical waveguide couplers are interconnected via a connecting optical fiber. The optical integrated circuit substrate is fixed to a reinforcing plate of a material which has a thermal expansion coefficient nearly equal to that of the optical integrated circuit substrate. The reinforcing plate is held on a support structure by flexible holding means.

公开(公告)号：US4854169A

公开(公告)日：1989-08-08

申请号：US201080

申请日：1988-06-01

申请人： Kazuhiro Sakuma ,  Hirohito Itoh ,  Mitsuaki Kazou ,  Kenji Kuramoto

发明人： Kazuhiro Sakuma ,  Hirohito Itoh ,  Mitsuaki Kazou ,  Kenji Kuramoto

IPC分类号： G01P1/00 ,  G01P15/13

CPC分类号： G01P1/006 ,  G01P15/132 ,  Y10S248/901

摘要： An accelerometer is composed of a pair of housings each of which forms a magnetic structure together with a permanent magnet and a flapper flexurally supported by hinge portions between the magnetic structures. The permanent magnet is secured to the housing of the magnetic structure by means of a spacer so as to prevent a harmful thermal stress which will be caused by the difference of thermal expansion between the magnet and the housing. A bobbin with a torquer coil is secured to the flapper by means of a base member to take no effect of thermal stress which will be caused by the difference between the materials of the bobbin and the flapper. The above elements are housed in a case which is installed in an instrument board so as to be unaffected by changes in temperature in surroundings of the accelerometer.

摘要翻译： 加速度计由一对壳体组成，每个壳体与永磁体一起形成磁性结构，以及由磁性结构之间的铰链部分弯曲地支撑的挡板。 永磁体通过间隔件固定到磁性结构的壳体，以防止由磁体和壳体之间的热膨胀差引起的有害的热应力。 具有绞盘线圈的线轴通过基座部件固定在挡板上，不会受到筒管和挡板的材料之间的差异引起的热应力的影响。 上述元件容纳在安装在仪表板中的情况下，不受加速度计周围环境温度的变化的影响。