公开(公告)号：US20050072011A1

公开(公告)日：2005-04-07

申请号：US10956150

申请日：2004-10-04

申请人： Shinichi Miyashita ,  Makoto Kawakami

发明人： Shinichi Miyashita ,  Makoto Kawakami

IPC分类号： G01C17/30 ,  G01C17/02 ,  G01C17/28 ,  G01R33/02 ,  G01R33/04 ,  G01V3/11

CPC分类号： G01C17/30 ,  H01L2224/48091 ,  H01L2224/49171 ,  H01L2924/00014

摘要： There is provided a quadrilateral insulating substrate, and plural magnetic sensors are provided on the substrate. An IC is provided on the substrate for supplying driving signals to the magnetic sensors and receiving magnetic detecting signals from the magnetic sensors to output magnetic information depending on strength of magnetism. The magnetic sensors and the IC are encapsulated by an encapsulation member to integrate the substrate and magnetic sensors and IC.

摘要翻译： 提供了四边形绝缘基板，并且在基板上设置有多个磁传感器。 在基板上设置IC，用于向磁传感器提供驱动信号，并接收来自磁传感器的磁检测信号，以根据磁强度输出磁信息。 磁传感器和IC由封装件封装，以集成基板和磁传感器和IC。

公开(公告)号：US06084406A

公开(公告)日：2000-07-04

申请号：US831322

申请日：1997-04-01

申请人： John J. James ,  George Hsu

发明人： John J. James ,  George Hsu

IPC分类号： G01C17/00 ,  G01C17/30 ,  G01R33/02 ,  G01C17/28 ,  G01R33/04

CPC分类号： G01C17/30 ,  G01R33/02

摘要： A magnetic field sensor element comprises an elongated core of high-magnetic permeability material having a coil of electrically-conductive wire wound around and along a central axis of the core. The sensor, due to inductance of the core which changes with application of a local magnetic field, exhibits a characteristic of delaying an electrical input as a function of the strength of a magnetic field in the direction of the axis of the core, and the delay is measured as a function of the strength of the magnetic field. Appropriate circuitry provides at least one step-function voltage input to the coil such that the resulting delay in current charge-up into the coil creates a voltage across the coil which decays to a known reference value. The time delay for the voltage decaying to the reference value varies as a monotonic function with the strength of the applied magnetic field to be measured.

摘要翻译： 磁场传感器元件包括高磁导率材料的细长芯，其具有围绕并沿着芯的中心轴线缠绕的导电线圈。 传感器由于施加局部磁场而改变的磁芯的电感，表现出延迟电输入的特性，其作为磁芯在磁芯轴方向上的磁场强度的函数，延迟 作为磁场的强度的函数被测量。 适当的电路向线圈提供至少一个步进功能电压输入，使得当前充电到线圈中的所得延迟在线圈上产生衰减到已知参考值的线圈电压。 电压衰减到参考值的时间延迟随着所测量的施加磁场强度的单调函数而变化。

公开(公告)号：US5995000A

公开(公告)日：1999-11-30

申请号：US93761

申请日：1998-06-09

申请人： Joseph David King

发明人： Joseph David King

IPC分类号： G01C17/30 ,  B60Q1/00

CPC分类号： G01C17/30

摘要： A wireless compass for vehicles includes a compass sensor installed in a first location of a vehicle. The compass sensor sends information regarding the heading of the vehicle via a wireless transmitter. A compass display includes a complementary wireless receiver which receives the data from the compass sensor. The compass display and receiver are located at a second location convenient for the driver. The display displays the heading of the vehicle based upon the data received from the compass sensor.

摘要翻译： 用于车辆的无线罗盘包括安装在车辆的第一位置的罗盘传感器。 罗盘传感器通过无线发射器发送有关车辆航向的信息。 指南针显示器包括从罗盘传感器接收数据的互补无线接收器。 指南针显示器和接收器位于便于驾驶员的第二位置。 显示器基于从罗盘传感器接收的数据显示车辆的标题。

公开(公告)号：US5931177A

公开(公告)日：1999-08-03

申请号：US817979

申请日：1997-04-28

申请人： Claude Yonnet

发明人： Claude Yonnet

IPC分类号： E03B7/07 ,  E03B7/00 ,  E03B9/02 ,  F16K37/00 ,  G01C17/30 ,  G01P13/04

CPC分类号： G01P13/045 ,  E03B9/02 ,  F16K37/0041 ,  G01C17/30 ,  Y10T137/0318 ,  Y10T137/701 ,  Y10T137/8242 ,  Y10T137/8275

摘要： This application discloses apparatus for logging the operation of a valve (10) of the type having a spindle (16) rotatable by a key (20) to effect opening and closing thereof, the apparatus including operative means (36) which are in use carried on a key (20), the operative means being operable independently of any other apparatus or electronic equipment to detect rotary motion of the key during operation of the valve. Preferably, the operative means includes sensor means (40, 42) sensitive to the earth's magnetic field, and is operative to determine rotation of the key by analysis of signals generated by the sensor means. By detecting valve operation with operative means on a key, the expense of providing detection apparatus for each valve is avoided (the total number of keys being much less than the total number of valves), as is the need to provide potentially delicate equipment in the hostile environs of the valves.

摘要翻译： PCT No.PCT / GB95 / 02536 Sec。 371日期1997年04月28日 102（e）日期1997年4月28日PCT 1995年10月27日PCT PCT。 公开号WO96 / 13639 日期1996年5月9日本申请公开了一种用于记录具有由钥匙（20）可旋转的主轴（16）进行打开和关闭的阀（10）的操作的装置，该装置包括操作装置（36） 被使用在钥匙（20）上，操作装置可独立于任何其他装置或电子设备操作，以在阀的操作期间检测钥匙的旋转运动。 优选地，操作装置包括对地球磁场敏感的传感器装置（40,42），并且通过分析由传感器装置产生的信号来确定钥匙的旋转。 通过用钥匙上的操作手段检测阀门操作，避免了为每个阀门提供检测装置的费用（键的总数远小于阀门总数），因为需要提供潜在的精密设备 阀门敌对环境。

公开(公告)号：US5739431A

公开(公告)日：1998-04-14

申请号：US663402

申请日：1996-06-13

申请人： Fred Petri

发明人： Fred Petri

IPC分类号： E21B47/02 ,  E21B47/022 ,  G01C17/30 ,  G01P15/097 ,  G01P15/10 ,  G01R33/028 ,  G01P3/00 ,  G01C9/10 ,  G01R33/00

CPC分类号： G01R33/028 ,  E21B47/02 ,  E21B47/022 ,  E21B47/02232 ,  G01C17/30 ,  G01P15/097

摘要： A magnetometer is integrated with a miniature vibrating beam accelerometer fabricated out of silicon on a common substrate. Dual pendulum-DETF force sensing accelerometers have integrated conductor coils on the pendulums that circulate alternating current to cause an additional pendulum motion also sensed by the DETF transducers for sensing local earth magnetic field. The integrated magnetic and acceleration sensing is used for each of three reference axes in a triaxial inclinometer magnetometer for borehole drill steering and surveying.

摘要翻译： 磁力仪与在公共基板上由硅制成的微型振动梁加速度计集成。 双摆DETF力感测加速度计在摆锤上具有集成的导体线圈，其循环交流电流，以产生也由DETF换能器检测到的附加摆锤运动，以感测局部地磁场。 在三轴倾角计磁力计中用于钻孔转向和测量的三个参考轴中的每一个的集成磁和加速度感测。

公开(公告)号：US5616860A

公开(公告)日：1997-04-01

申请号：US346487

申请日：1994-11-29

申请人： Hiroshi Morohoshi ,  Yuichi Masuda ,  Yasuo Kuroki

发明人： Hiroshi Morohoshi ,  Yuichi Masuda ,  Yasuo Kuroki

IPC分类号： G01P5/00 ,  G01C17/30 ,  G01P5/14 ,  G01P13/00 ,  G04G21/02 ,  G01W1/00

CPC分类号： G04G21/02 ,  G01C17/30 ,  G01P5/14

摘要： In an azimuth indicating apparatus, there are provided a wind speed measuring unit for measuring a wind speed, an azimuth measuring unit for measuring azimuth, a display unit for displaying wind speeds measured at respective azimuths, and a display control unit for controlling the display unit to display the wind speeds measured at the respective azimuths based on the measurement results of the azimuth measuring unit and the wind speed measuring unit. Accordingly, the blowing direction of the wind is indicated by the azimuth indicating apparatus.

摘要翻译： 在方位指示装置中，设置有用于测量风速的风速测量单元，用于测量方位角的方位测量单元，用于显示在各个方位测量的风速的显示单元，以及用于控制显示单元的显示控制单元 基于方位测量单元和风速测量单元的测量结果来显示在相应方位测量的风速。 因此，风的吹出方向由方位指示装置指示。

公开(公告)号：US5519318A

公开(公告)日：1996-05-21

申请号：US997043

申请日：1992-12-28

申请人： Steve J. Koerner ,  Anthony E. Lifur ,  Michael J. Wall

发明人： Steve J. Koerner ,  Anthony E. Lifur ,  Michael J. Wall

IPC分类号： G01C17/30 ,  G01R33/02

CPC分类号： G01R33/0206 ,  G01C17/30

摘要： A triaxial magnetic heading sensing apparatus includes nulling coils and netoresistive sensors having inputs and outputs. The nulling coils are arranged in parallel relation to three orthogonal planes intersecting at a common center point. The sensors are disposed along orthogonal axes in parallel relation to the orthogonal planes and in close proximity to the center point. Each sensor has a bridge configuration balanced in the absence of an applied external magnetic field and unbalanced in the presence one. Also, a signal generator is connected to the inputs of the sensors for exciting the sensors with a bipolar voltage waveform exhibiting alternating positive and negative voltage polarities punctuated by "off" states of zero volts. Further, a voltage integrator and low pass filter are connected in series with the output of a respective one of the sensors for generating an error signal representative of an imbalance due to the presence of an applied external magnetic field and for coupling the input and output of each nulling coil and of each sensor into a servo control loop such that each sensor is driven by the error signal to a magnetic nulling condition with zero steady state error. A pick-off resistor is connected to the output of the low pass filter for outputting a representation of the nulling current to provide a measure of the applied external magnetic field.

摘要翻译： 三轴磁头检测装置包括具有输入和输出的零线圈和磁阻传感器。 零点线圈与在共同中心点相交的三个正交平面平行地布置。 传感器沿正交轴线平行于正交平面并且靠近中心点设置。 每个传感器在没有施加的外部磁场的情况下具有平衡的桥接配置，并且在存在的情况下不平衡。 此外，信号发生器连接到传感器的输入端，用双极性电压波形来激励传感器，该双极性电压波形呈现由零电压“断开”状态标记的正和负电压极性。 此外，电压积分器和低通滤波器与相应的传感器的输出串联连接，用于产生由于存在施加的外部磁场而导致不平衡的误差信号，并且用于耦合输入和输出 每个零线圈和每个传感器分成伺服控制回路，使得每个传感器由误差信号驱动到具有零稳态误差的磁零点状态。 接通电阻器连接到低通滤波器的输出端，用于输出归零电流的表示，以提供所施加的外部磁场的测量值。

公开(公告)号：US5488778A

公开(公告)日：1996-02-06

申请号：US456851

申请日：1995-06-01

申请人： Bronson Potter

发明人： Bronson Potter

IPC分类号： G01C17/30 ,  G01R33/028 ,  G01C17/02

CPC分类号： G01C17/30 ,  G01R33/0283

摘要： An improved electronic magnetometer has a flux-concentrating core making grazing contact with a magnetically conductive element which is preferably part of a piezoelectric transducer. The core and transducer are mounted so as to make non-coherent, chattering contact when the transducer is caused to vibrate. A pickup coil attached to a signalling device enables a user to find a null in a field of magnetic flux with novel accuracy.

摘要翻译： 改进的电子磁力计具有通量集中芯，其与优选为压电换能器的一部分的导磁元件进行放电接触。 安装核心和换能器，以便当换能器振动时，产生非相干，颤动的接触。 附接到信号装置的拾取线圈使得用户能够以高精度在磁通场中找到零。

公开(公告)号：US5351204A

公开(公告)日：1994-09-27

申请号：US815347

申请日：1991-12-27

申请人： Rafi A. Al-Attar

发明人： Rafi A. Al-Attar

IPC分类号： G01C17/30 ,  G01C17/38

CPC分类号： G01C17/30 ,  G01C17/38

摘要： A scaling system and technique which employs an analog-to-digital converter having at least 10-bit accuracy and a ranging circuit to compensate for abnormally large vehicle magnetic fields. The ranging circuit employs variable resistance negative feedback, which enables an electronic compass system to reduce the output voltage of an integrator to within the fixed output voltage range of the integrator. An analog-to-digital converter of at least 10-bit accuracy makes resolution of heading information possible and enhances the accuracy of subsequently performed calibrations.

摘要翻译： 一种缩放系统和技术，其采用具有至少10位精度的模数转换器和测距电路来补偿异常大的车辆磁场。 测距电路采用可变电阻负反馈，使电子罗盘系统能够将积分器的输出电压降低到积分器的固定输出电压范围内。 具有至少10位精度的模数转换器可以使航向信息的分辨成为可能，并提高随后执行的校准的准确性。

公开(公告)号：US5333110A

公开(公告)日：1994-07-26

申请号：US815274

申请日：1991-12-27

申请人： Rafi A. Al-Attar

发明人： Rafi A. Al-Attar

IPC分类号： G01C17/30 ,  G01C17/38

CPC分类号： G01C17/30

摘要： A method and apparatus for interpreting magnetic directions for an electronic compass system mounted on a moving vehicle such as an automobile. The directions of North, Northeast, East, Southeast, South, Southwest, West and Northwest are each assigned predetermined degree ranges which are included in a look-up table used by a controller. The predetermined degree ranges associated with the directions of North, South, East and West are further each set at equal values, while the predetermined degree ranges of Northeast, Northwest, Southeast and Southwest are set equally at a value that is less than the values of the North, South, East and West directions. A flux-gate senses the Earth's magnetic field and generates an analog signal in accordance therewith. The analog signal is converted into a corresponding digital signal by an analog-to-digital converter. The controller receives the corresponding digital signal and converts the digital signal into a degree heading. The controller then compares the degree heading with the eight predetermined degree ranges included in the look-up table and generates a directional heading signal in accordance with the predetermined degree range within which the degree heading falls. A directional heading signal is then output to a visual display and displayed as one of the eight directional headings associated with the eight predetermined degree ranges. The invention thus simplifies the interpretation of heading information generated by an electronic compass system and reduces the chance of driver confusion by interpreting heading information more in accordance with the major geographic directions of North, South, East and West.

摘要翻译： 一种用于解释安装在诸如汽车的移动车辆上的电子罗盘系统的磁方向的方法和装置。 北，东，东，东南，南，西南，西西北的方向各自被分配预定的程度范围，这些范围包括在控制器使用的查找表中。 与北，南，东，西方向相关的预定度范围进一步设定为相等的值，而东北，西北，东南，西南的预定度范围设定为小于 北，南，东，西方向。 磁通门感测地球的磁场并根据其产生模拟信号。 模拟信号由模数转换器转换成相应的数字信号。 控制器接收相应的数字信号，并将数字信号转换为度数。 然后，控制器将度数标题与包括在查找表中的八个预定度数进行比较，并根据度标题下降的预定程度产生方向标题信号。 然后将方向航向信号输出到视觉显示器并显示为与八个预定程度范围相关联的八个方向标题之一。 因此，本发明简化了电子罗盘系统产生的标题信息的解释，并且根据北，南，东，西的主要地理方向更多地解释标题信息，减少了驾驶员混淆的机会。