公开(公告)号：US4767988A

公开(公告)日：1988-08-30

申请号：US877646

申请日：1986-06-13

申请人： Harold S. Wilson

发明人： Harold S. Wilson

IPC分类号： G01C17/30 ,  G01C17/28 ,  G01V3/40 ,  G05D1/00

CPC分类号： G01C17/30

摘要： The orientation of a moving platform with respect to a magnetic field is determined by rotating a 3-component vector magnetometer mounted on the platform about at least two axes in the magnetic field. Changes in the signals from the magnetometer are monitored, and the direction of the magnetic field relative to the platform is computed from the signal changes. It is not necessary to know the DC bias of each magnetometer channel or the component of the background magnetic field along each axis of the magnetometer.

摘要翻译： 移动平台相对于磁场的取向通过旋转安装在平台上的围绕磁场中的至少两个轴的3分量矢量磁强计来确定。 监测来自磁力计的信号的变化，并根据信号变化计算磁场相对于平台的方向。 不需要知道每个磁力计通道的直流偏压或背景磁场的分量沿磁力计的每个轴。

公开(公告)号：US4763072A

公开(公告)日：1988-08-09

申请号：US869003

申请日：1986-05-30

申请人： Mitsuru Katoh ,  Shin-Ichi Kawada ,  Isao Masuzawa

发明人： Mitsuru Katoh ,  Shin-Ichi Kawada ,  Isao Masuzawa

IPC分类号： G01C17/28 ,  G01R33/04

CPC分类号： G01R33/04 ,  G01C17/28

摘要： A magnetic sensor including an annular iron core, an annular hollow bobbin for a primary winding which incorporates therein the annular iron core, the bobbin having a plurality of protruded portions which are arranged along a circumference of the annular bobbin with an equal distance, each of the protruded portions being extended in a direction parallel to a center axis of the annular iron core, the primary winding being wound on the annular bobbin at respective portions between adjacent protruded portions with an equal number of turns, a bobbin for a secondary winding having a positioning means for the primary winding in association with the protruded portions of the bobbin for the primary winding when the bobbins for the primary and secondary windings are assembled, the secondary winding being wound on the bobbin to form more than two pairs of winding groups.

摘要翻译： 一种磁传感器，包括环形铁芯，用于初级绕组的环形空心线圈，其中并入有环形铁芯，线轴具有沿着环形线轴的圆周等距离排列的多个突出部分， 突出部分在平行于环形铁芯的中心轴线的方向上延伸，初级绕组以相等的匝数在相邻突出部分之间的相应部分处缠绕在环形绕线管上，用于次级绕组的线轴具有 当组装用于初级和次级绕组的线轴时，用于初级绕组的线轴的突出部分的初级绕组的定位装置，次级绕组缠绕在线轴上以形成两对绕组。

公开(公告)号：US4739263A

公开(公告)日：1988-04-19

申请号：US881110

申请日：1986-07-02

申请人： Kaneo Mohri ,  Masao Shigeta

发明人： Kaneo Mohri ,  Masao Shigeta

IPC分类号： G01C17/28 ,  G01R33/04 ,  G01C17/30 ,  G01C21/08

CPC分类号： G01C17/28 ,  G01R33/045

摘要： A direction sensor includes at least one sensor element including a ring-shaped core formed from at least one flexible wire made of zero-magnetostrictive amorphous magnetic material, two pairs of series connected coils spaced from each other at equal intervals about the core for sensing an external magnetic field, with the core being formed by threading the wires through the coils, the coils being excited by an alternating frequency f, wherein voltages of frequency f are produced across each pair of coils; and a process circuit for providing a differential voltage between the voltages of frequency f produced across each pair of coils.

摘要翻译： 方向传感器包括至少一个传感器元件，其包括由至少一个由零磁致伸缩非晶磁性材料制成的柔性线形成的环形芯，两对串联连接的线圈，以相等的间隔相对于芯部间隔开，用于感测 外部磁场通过将线穿过线圈形成芯，线圈被交替频率f激励，其中频率f的电压跨越每对线圈产生; 以及用于在每对线圈之间产生的频率f的电压之间提供差分电压的处理电路。

公开(公告)号：US4673878A

公开(公告)日：1987-06-16

申请号：US824309

申请日：1986-01-30

申请人： Noburu Tsushima ,  Masashi Fuse ,  Teruo Mimori ,  Toshio Sasaki ,  Tadashi Mukai

发明人： Noburu Tsushima ,  Masashi Fuse ,  Teruo Mimori ,  Toshio Sasaki ,  Tadashi Mukai

IPC分类号： G01C21/00 ,  G01C17/28 ,  G05D1/02 ,  G01R33/00

CPC分类号： G01C17/28

摘要： A current location updating display for indicating the current location of moving members such as an automobile while updating from time to time based on output from a magnetic azimuth sensor adapted to detect the azimuth of terrestrial magnetism. Output signals from the magnetic azimuth sensor are stored in a data memory after A/D conversion and correction, and a predetermined amount of data read out from the data memory is subject to the averaging processing. With this, plural angle information (sin .theta. and cos .theta.) signals or plural angle (.theta.) signals are averaged out including a signal corresponding to disturbance magnetism. Thus average data signals are integrated by an integrator and then sent to a display portion. Through the averaging processing an azimuthal error is restrained as small as possible, so that the current location or running path of the moving member may be indicated correctly.

摘要翻译： 当前的位置更新显示，用于指示诸如汽车之类的移动部件的当前位置，同时根据适于检测地磁方位的磁方位传感器的输出不时地更新。 来自磁方位传感器的输出信号在A / D转换和校正之后被存储在数据存储器中，并且从数据存储器读出的预定数量的数据进行平均处理。 由此，多个角度信息（sinθ和cosθ）信号或多个角度（θ）信号被平均化，包括对应于扰动磁场的信号。 因此，平均数据信号由积分器积分，然后发送到显示部分。 通过平均处理，将方位角误差抑制得尽可能小，使得可以正确地指示移动构件的当前位置或运行路径。

公开(公告)号：US4634978A

公开(公告)日：1987-01-06

申请号：US515258

申请日：1983-07-19

申请人： Yoshiteru Watanabe

发明人： Yoshiteru Watanabe

IPC分类号： G01C17/30 ,  B63H25/04 ,  G01C17/28 ,  G01C17/38 ,  G01P13/04 ,  G05D1/00

CPC分类号： G01C17/28 ,  G01C17/38

摘要： A system for accurately measuring the direction in which a magnetometer is to be set has a simple construction and is little affected by iron structures on a hull. The system has a magnetometer which includes an excitation source, a magnetic core, an excitation AC winding and an output winding which are both wound around the magnetic core. The output winding is composed of two series connected coils which are wound around the magnetic core and have an equal number of turns. The measuring system applies an alternating current to the core having an amplitude large enough to saturate the magnetic core, and obtains an output from the output winding corresponding to the angle formed between the geomagnetic field direction and an imaginary line obtained by interconnecting the point of connection of the two coils and the central point of the magnetic core.

摘要翻译： 用于精确测量磁力计的方向的系统具有简单的结构，并且几乎不受船体上的铁结构的影响。 该系统具有磁力计，其包括缠绕在磁芯上的激励源，磁芯，激励AC绕组和输出绕组。 输出绕组由缠绕在磁芯上并且具有相同数目的匝数的两个串联的线圈组成。 测量系统向磁芯施加具有足够大的振幅以使磁芯饱和的磁芯的交流电，并且从输出绕组获得对应于通过将连接点互连而获得的地磁场方向与虚线之间形成的角度的输出 的两个线圈和磁芯的中心点。

公开(公告)号：US4480226A

公开(公告)日：1984-10-30

申请号：US184615

申请日：1980-09-05

申请人： Akira Kuno ,  Muneaki Matsumoto ,  Koji Numata

发明人： Akira Kuno ,  Muneaki Matsumoto ,  Koji Numata

IPC分类号： G01C17/30 ,  G01R33/02 ,  G01C17/28 ,  G01R33/04

CPC分类号： G01C17/30

摘要： A vehicle's heading indicating apparatus includes a direction-finding sensor having a pair of external field sensing windings wound perpendicular to each other, a sensor exciting oscillator circuit, a signal sampling timing circuit, sample-and-hold circuits, comparators, a logic circuit and an indicator circuit. The output of each of the sensor windings is divided into predetermined (N+1) signal levels such that the heading or direction of travel of a vehicle is detected and indicated in accordance with the combination of each two signal levels sensing the heading, and also large disturbance of the earth's magnetic field is sensed such that the just preceding direction of travel obtained is indicated when the earth's magnetic field is excessively low or high. The apparatus further comprises an abnormal field sensing circuit for generating an abnormal field signal upon detecting that the heading sensing signals from the direction-finding sensor have exceeded a predetermined range of levels and an indicator gives an abnormal field indication in response to the abnormal field signal.

摘要翻译： 车辆的行驶指示装置包括具有彼此垂直缠绕的一对外部场感测绕组的测向传感器，传感器激励振荡器电路，信号采样定时电路，采样和保持电路，比较器，逻辑电路和 指示电路。 每个传感器绕组的输出被分成预定的（N + 1）个信号电平，使得根据感测标题的每个两个信号电平的组合来检测和指示车辆的行进方向或行进方向，并且还 感测到地球磁场的大的扰动，使得当地球的磁场过低或过高时，所获得的行进方向就在前面。 该装置还包括异常场感测电路，用于在检测到来自测向传感器的航向感测信号已经超过预定的电平范围时产生异常场信号，并且指示器响应于异常场信号而给出异常场指示 。

公开(公告)号：US4373271A

公开(公告)日：1983-02-15

申请号：US215268

申请日：1980-12-11

申请人： Larry T. Nitz

发明人： Larry T. Nitz

IPC分类号： G01C17/28 ,  G01C17/30

CPC分类号： G01C17/28

摘要： The magnetic field strengths in two perpendicularly oriented ferromagnetic core members are converted to voltages and summed to form a composite field strength voltage. The core members are mounted in a vehicle and the slope polarity and amplitude of the composite field strength voltage are used to determine the heading of the vehicle.

摘要翻译： 两个垂直取向的铁磁芯构件中的磁场强度被转换为电压并相加以形成复合场强电压。 核心部件安装在车辆中，复合场强电压的斜率极性和振幅用于确定车辆的航向。

公开(公告)号：US4197655A

公开(公告)日：1980-04-15

申请号：US849831

申请日：1977-11-09

申请人： Nathaniel N. Moore

发明人： Nathaniel N. Moore

IPC分类号： G01C17/28 ,  G01C19/28 ,  G01C19/36 ,  G01C19/44 ,  G01C19/00 ,  G01C19/38

CPC分类号： G01C19/44 ,  G01C17/28 ,  G01C19/28 ,  G01C19/36 ,  Y10T74/1254

摘要： A gyroscopic device of the type having a short-circuited rotor winding or conductor so shaped so as to produce axial and radial flux components when rotated in the earth's magnetic field is coupled to a coaxial sensing coil coaxial which gyroscopically stabilized thereby, signals induced in the sensing coil due to the axial flux component of the rotor is used to derive magnetic heading information and there is provided at least one further coil on the supporting body and inductively linked to the sensing coil and rotor such that when the sensing coil is gyroscopically stabilized by the rotor, the coil supported on the supporting body in relation to the gyroscopically stabilized sensing coil is such that any changes in angular orientation of the supporting body relative to the gyroscopically stabilized sensing coil introduces changes in the signal voltages induced in the coils. The further coil on the supporting body may be excited with one or more excitation signals of a frequency different than the angular speed of the rotor and constituted by pairs of orthogonally related coils on all three axes, namely, the roll, pitch and yaw axes. The coil located on the yaw axis is coaxial with the gyroscopically stabilized sensing coil in the rest position and is used for eliminating ambiguities.

摘要翻译： 具有在地球磁场中旋转时形成轴向和径向通量分量的短路转子绕组或导体的类型的陀螺仪装置耦合到由其陀螺稳定的同轴感测线圈同轴，由此在 使用由于转子的轴向通量分量的感测线圈来导出磁性航向信息，并且在支撑体上提供至少一个另外的线圈，并且感应地连接到感测线圈和转子，使得当感测线圈被陀螺稳定时 转子，相对于陀螺稳定的感测线圈支撑在支撑体上的线圈使得支撑体相对于陀螺稳定的感测线圈的角度取向的任何变化引入在线圈中感应的信号电压的变化。 支撑体上的另外的线圈可以用一个或多个频率不同于转子的角速度的激励信号来激励，并且由所有三个轴上的成对的正交相关线圈组成，即滚动，俯仰和偏转轴。 位于偏转轴上的线圈与静止位置的陀螺稳定的感测线圈同轴，并用于消除歧义。

公开(公告)号：US4139951A

公开(公告)日：1979-02-20

申请号：US780502

申请日：1977-03-23

申请人： Thomas L. Cunard ,  Ulrich O. Cunard

发明人： Thomas L. Cunard ,  Ulrich O. Cunard

IPC分类号： G01C17/28

CPC分类号： G01C17/28

摘要： Our invention relates to a novel electromechanical method and apparatus for detecting and representing the north direction and/or the heading of an object or vessel in analog and/or digital representation.

摘要翻译： 本发明涉及用于在模拟和/或数字表示中检测和表示物体或容器的北方向和/或方位的新型机电方法和装置。

公开(公告)号：US4104803A

公开(公告)日：1978-08-08

申请号：US756172

申请日：1977-01-03

申请人： Raymond W. Hoeppel

发明人： Raymond W. Hoeppel

IPC分类号： G01C17/28 ,  G01C17/30

CPC分类号： G01C17/28

摘要： A direction finding device employs a magnetic field sensor utilizing a vibrating magnetic reed switch with adjustable magnetic bias to vary the sensitivity or dead band. By sensing magnetic North, it indicates audibly, visually or by nerve stimulus any departure from a preset course. When attached to a moving object or person it serves as a warning or guidance system.

摘要翻译： 方向发现装置采用利用具有可调磁偏置的振动磁簧开关的磁场传感器来改变灵敏度或死区。 通过感测磁北，它可视地，视觉地或由神经刺激指示任何偏离预设的过程。 当附着在移动的物体或人身上时，它作为警告或引导系统。