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21.发明授权Rotational angle detection device having two magnetoresistive sensing elements 失效具有两个磁阻感测元件的旋转角度检测装置
公开(公告)号：US4490674A
公开(公告)日：1984-12-25
申请号：US442690
申请日：1982-11-18
Applicant: Susumu Ito
Inventor： Susumu Ito
IPC: G01B7/30 , G01B7/00 , G01D5/14 , G01D5/16 , G01D5/18 , G01D5/243 , G01D5/247 , G01B7/14 , G01N27/72 , G01R33/12
Abstract: A rotational angle detection device having two magnetoresistive sensing elements positioned at a 45.degree. angle with respect to each other senses the rotary position of a permanent magnet. Sine and cosine waves are applied to first and second bridge circuits respectively incorporating the two sensing elements. The resulting bridge circuit outputs are differentially combined to provide an output whose phase relative to either of the input sine or cosine waves is dependent upon the rotational position of the permanent magnet. The phase difference is detected and the rotational position is calculated therefrom.
Abstract translation: 具有相对于彼此定位成45度角的两个磁阻感测元件的旋转角检测装置感测永磁体的旋转位置。 正弦波和余弦波被施加到分别并入两个感测元件的第一和第二桥接电路。 所得到的桥式电路输出差分地组合以提供输出，其相对于任一输入正弦波或余弦波的相位取决于永磁体的旋转位置。 检测相位差，由此计算旋转位置。
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公开(公告)号：US4240069A
公开(公告)日：1980-12-16
申请号：US952210
申请日：1978-10-17
Applicant: Francois M. L. Hullein , Jean-Claude A. M. Cadet
Inventor： Francois M. L. Hullein , Jean-Claude A. M. Cadet
CPC classification number: G01D5/247 , G01D5/2451 , H03M1/308
Abstract: An electronic angular coder for theodolites or the like, comprising a rotng disk bearing a series of engraved radial markings, a stationary detector, and a mobile detector. An approximate measure of the offset angle between a stationary detector and a mobile detector is accomplished by counting the markings passing in front of the heads. Fine measures of the shift in phase between the passage of a marking in front of the mobile detector and the fixed detector are also obtained.
Abstract translation: 一种用于经纬仪等的电子角度编码器，包括带有一系列雕刻的径向标记的旋转盘，固定式检测器和移动式检测器。 静态检测器和移动式检测器之间的偏移角度的近似度量是通过对通过前端的标记进行计数来实现的。 也可以获得在移动式检测器前方的标记通过与固定式检测器之间的相位偏移的精细测量。
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公开(公告)号：US4136345A
公开(公告)日：1979-01-23
申请号：US847453
申请日：1977-10-31
Applicant: Mark H. Neville , Thomas S. Taylor
Inventor： Mark H. Neville , Thomas S. Taylor
Abstract: An ink drop height sensing device for an ink jet recording apparatus, the apparatus including a nozzle for forming and propelling a stream of ink drops towards a recording media in a predetermined deflection plane. A light source on one side of the intended path or trajectory in the plane of deflection of the ink drops impinges upon a mask located on the opposite side of the plane, which mask is aligned with a light sensitive device such as a phototransistor located behind the mask. The mask includes first, second and third line sensors, in the illustrated instance serially arranged slots with at least two of the slots being in parallel relation, the third slot being inclined with respect to the parallel slots and positioned with respect to them so that at a predetermined point along its length, it is a predetermined distance from the next adjacent slot relative to the distance between the two parallel slots. The phototransistor is coupled to a timer for comparing the time intervals for the passage of the ink drop between the parallel slots which is compared with the time taken for passage between one of the parallel slots and the inclined slot. If the time of the drop travel between the parallel slots is determined, (the distance being fixed), and the time of drop travel between one of the parallel slots and the inclined slot is compared to that time interval, dependent upon whether the time measurement is longer or shorter, then it may be determined whether the drop is high or low in the deflection plane and suitable correction may be employed to bring the deflected ink drops to their predetermined deflection height or trajectory path.
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公开(公告)号：US3745544A
公开(公告)日：1973-07-10
申请号：US3745544D
申请日：1971-10-26
Applicant: ONO SOKKI CO LTD
Inventor： ONO G
Abstract: Apparatus for digitally measuring the angle of rotation of a shaft is provided including first, second, third and fourth discs mounted for rotation on a common shaft or axis and cooperating first, second, third and fourth electromagnetic pickups mounted facing each of the exterior circumferences of the first, second, third and fourth discs, some of the pickups are fixed with respect to their complementary rotating discs and the others are rotated an amount corresponding to the rotating angle to be measured and circuit means including pulse signal generators, counters, gates and decoders for digitally measuring the angle of movement of the rotatably mounted electromagnetic pickups.
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公开(公告)号：US3426340A
公开(公告)日：1969-02-04
申请号：US51532165
申请日：1965-12-21
Applicant: HOLLANDSE SIGNAALAPPARATEN BV
Inventor： OFFEREINS RIENK PIETER
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Patent Agency Ranking
公开(公告)号：US2987717A
公开(公告)日：1961-06-06
申请号：US76559158
申请日：1958-10-06
Applicant: ITT
Inventor： ALTONJI EDMUND R , KUNKEL EDWARD A
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27.发明授权Magnetic field sensor and associated method that can establish a measured threshold value and that can store the measured threshold value in a memory device 有权磁场传感器和相关联的方法，其可以建立测量的阈值并且可以将测量的阈值存储在存储器件中公开(公告)号：US08736260B2
公开(公告)日：2014-05-27
申请号：US13345021
申请日：2012-01-06
Applicant: Andrea Foletto , Peter Cisar , Eric Shoemaker
Inventor： Andrea Foletto , Peter Cisar , Eric Shoemaker
IPC: G01B7/30
CPC classification number: G01D5/145 , G01D5/142 , G01D5/2449 , G01D5/247 , G01D18/008 , G01P3/488
Abstract: A magnetic field sensor includes a true power on state (TPOS) detector for which a measured threshold value is stored prior to power down and recalled upon power up. A corresponding method is associated with the magnetic field sensor.
Abstract translation: 磁场传感器包括真正的通电状态（TPOS）检测器，在断电之前存储测量的阈值并在加电时调用。 相应的方法与磁场传感器相关联。
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28.发明申请Magnetic Field Sensor and Associated Method That Can Establish a Measured Threshold Value and That Can Store the Measured Threshold Value in a Memory Device 有权磁场传感器和可以建立测量阈值的相关方法，并将可测量的阈值存储在存储器中公开(公告)号：US20130177040A1
公开(公告)日：2013-07-11
申请号：US13345021
申请日：2012-01-06
Applicant: Andrea Foletto , Peter Cisar , Eric Shoemaker
Inventor： Andrea Foletto , Peter Cisar , Eric Shoemaker
IPC: G01K13/08
CPC classification number: G01D5/145 , G01D5/142 , G01D5/2449 , G01D5/247 , G01D18/008 , G01P3/488
Abstract: A magnetic field sensor includes a true power on state (TPOS) detector for which a measured threshold value is stored prior to power down and recalled upon power up. A corresponding method is associated with the magnetic field sensor.
Abstract translation: 磁场传感器包括真正的通电状态（TPOS）检测器，在断电之前存储测量的阈值并在加电时调用。 相应的方法与磁场传感器相关联。
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公开(公告)号：US08069580B2
公开(公告)日：2011-12-06
申请号：US12437101
申请日：2009-05-07
Applicant: Roland Finkler
Inventor： Roland Finkler
CPC classification number: G01D5/2497 , G01D5/247 , H03M1/28 , H03M1/285
Abstract: A measuring device for determining a position and/or a speed includes a scale having marks arranged at spacings from one another, and a scanning head, with the scale and the scanning head being arranged for movement relative to one another along a movement direction. The scanning head is constructed to determine a first spacing of the scanning head in the movement direction relative to a first one of the marks, and a second spacing of the scanning head in the movement direction relative to a second one of the marks, with the position and/or the speed being determined on the basis of the first spacing and the second spacing.
Abstract translation: 用于确定位置和/或速度的测量装置包括具有彼此间隔布置的标记的刻度和扫描头，其中刻度尺和扫描头沿着移动方向相对于彼此移动。 扫描头被构造成确定扫描头相对于标记中的第一个移动方向的移动方向的第一间隔，以及扫描头相对于第二个标记在移动方向上的第二间隔，其中 位置和/或速度是基于第一间隔和第二间距确定的。
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公开(公告)号：US07672506B2
公开(公告)日：2010-03-02
申请号：US10532090
申请日：2003-10-22
Applicant: Pierre-Yves Burgi , Francois Kaess , Pierre-Francois Ruedi , Pascal Nussbaum
Inventor： Pierre-Yves Burgi , Francois Kaess , Pierre-Francois Ruedi , Pascal Nussbaum
IPC: G06K9/62
CPC classification number: G01D5/247
Abstract: A system is provided in which the spatial values (S1 to Sn) of the physical quantity are represented by measurement pulses (I1 to In), the temporal ordering of which represents the values, which are processed by processing units (U1 to Un) arranged in at least one row and each include an output (SOR1 to SORn). During successive processing cycles, a measurement pulse processed therein can be delivered to form the output signal (SU) of the system. Each processing unit includes an inhibiting unit (BI) for, in other units and during a given processing cycle, inhibiting the passage to the outputs of the other units respective measurement pulses processed therein and hence preventing them from forming the output signal, if the measurement impulses are temporally ordered later in the given processing cycle than the one processed in the unit concerned.
Abstract translation: 提供了一种系统，其中物理量的空间值（S1至Sn）由测量脉冲（I1至In）表示，测量脉冲（I1至In）的时间顺序表示由排列的处理单元（U1至Un）处理的值 在至少一行中，并且每一行包括输出（SOR1至SORn）。 在连续的处理循环期间，可以传送其中处理的测量脉冲以形成系统的输出信号（SU）。 每个处理单元包括禁止单元（BI），用于在其它单元中并且在给定的处理周期期间，禁止在其中处理其它单元的输出的相应测量脉冲，从而防止其形成输出信号，如果测量 脉冲在给定的处理周期中比在相关单元中处理的脉冲更短暂地排序。
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