公开(公告)号：US5563408A

公开(公告)日：1996-10-08

申请号：US330113

申请日：1994-10-27

Applicant: Tsuyoshi Matsumoto ,  Kou Ohno

Inventor： Tsuyoshi Matsumoto ,  Kou Ohno

IPC: G01D5/245 ,  G01D5/249 ,  H03M1/24 ,  H03M1/28 ,  H03M1/30 ,  G01D5/34

CPC classification number: H03M1/282 ,  G01D5/2455 ,  G01D5/2492 ,  H03M1/308

Abstract: An absolute encoder having a coder in which an incremental pattern and an absolute pattern are arranged in parallel and a detector including sensors for detecting the incremental pattern and the absolute pattern respectively. The absolute encoder comprises a discriminater to discriminate a relative phase position of the coder and the detector in one pitch of the incremental pattern from an output of the sensor for detecting the incremental pattern, and a signal generator to generate a synchronizing signal when a discriminated phase position coincides with a predetemined phase position by means of an electric circuit in one pitch of the incremental pattern. The absolute pattern is read on the basis of the synchronizing signal at a position except for the boundary region between the minimum reading units.

Abstract translation: 具有编码器的绝对编码器，其中增量图案和绝对图案被并列布置;检测器包括分别用于检测增量图案和绝对图案的传感器。 该绝对编码器包括一个鉴别器，用于鉴别增量图案的一个间距中的编码器和检测器的相对相位位置与用于检测增量图形的传感器的输出，以及信号发生器，当鉴别相位 位置与预调节相位位置一致，通过增量图案的一个间距中的电路。 基于除了最小读取单位之间的边界区域以外的位置处的同步信号来读取绝对图案。

公开(公告)号：US5530331A

公开(公告)日：1996-06-25

申请号：US422758

申请日：1995-04-14

Applicant: Hiroyuki Hanei

Inventor： Hiroyuki Hanei

IPC: G01D5/245 ,  G01D5/249 ,  G05B11/18

CPC classification number: G01D5/2492 ,  G01D5/2455

Abstract: An encoder for indicating a position of a movable member and for generating at least two signals which are offset in phase from one another in accordance with movement of the movable member. The encoder includes a position detector and a presettable counter. The position detector generates a position reference signal indicating at least one reference position during movement of the movable member, and the presettable counter is preset for an absolute position of the encoder during movement of the movable member when the position reference signal is generated. The encoder can be constructed in a small size enabling use in servo systems and in industrial robots.

Abstract translation: 一种用于指示可移动部件的位置并根据可移动部件的运动产生至少两个彼此相位偏移的信号的编码器。 编码器包括位置检测器和可预置计数器。 位置检测器在可动构件的移动期间产生指示至少一个基准位置的位置参考信号，并且当生成位置参考信号时可移动构件的运动期间预设计数器用于编码器的绝对位置。 编码器可以构造成小型，可用于伺服系统和工业机器人。

公开(公告)号：US5459405A

公开(公告)日：1995-10-17

申请号：US703269

申请日：1991-05-22

Applicant: George D. Wolff ,  Marshall E. Smith, Jr. ,  George T. Ruck

Inventor： George D. Wolff ,  Marshall E. Smith, Jr. ,  George T. Ruck

IPC: G01B15/00 ,  G01D5/12 ,  G01D5/14 ,  G01D5/16 ,  G01D5/20 ,  G01D5/245 ,  G01D5/249 ,  G01D5/48 ,  G01S3/782 ,  G01S13/74 ,  G01V3/12 ,  G01R27/00 ,  G01S13/04

CPC classification number: G01V3/12 ,  G01D5/12 ,  G01D5/145 ,  G01D5/202 ,  G01D5/2451 ,  G01D5/2492 ,  G01D5/48

Abstract: A method and apparatus for sensing proximity of an object using near-field effects. Modulated radio frequency energy is fed to an antenna. The antenna radiates this modulated radio frequency energy to charge the surface of an object. When the position of the object changes, the impedance of the antenna due to near-field effects changes. This impedance change is detected to provide an indication of the object's movement. The sensing device may be packaged to be inserted into a wall to provide a sensor having a leak-free seal.

Abstract translation: 一种使用近场效应感测物体接近的方法和装置。 调制射频能量被馈送到天线。 该天线辐射该调制的射频能量以对物体的表面充电。 当物体的位置改变时，由于近场效应引起的天线阻抗变化。 检测该阻抗变化以提供对象运动的指示。 感测装置可以被包装以插入壁中以提供具有无泄漏密封的传感器。

公开(公告)号：US5317614A

公开(公告)日：1994-05-31

申请号：US935823

申请日：1992-08-26

Applicant: Richard D. Davis ,  Jeff Kotowski

Inventor： Richard D. Davis ,  Jeff Kotowski

IPC: G01D5/244 ,  G01D5/249 ,  G07C3/02

CPC classification number: G01D5/24404 ,  G01D5/2492

Abstract: A programmable, electronic, angular position indicator, based upon engineering units, estimates the angular displacement of a rotating rotor. The angular position indicator is programmed with the particular arrangement of teeth (or other markings) on the rotor. Intermediate angular displacements are interpolated between a limited number of positive angular displacement indications. Offsets, due to acceleration or deceleration of the rotor, are corrected at each positive angular displacement indication without skipping the output of each interpolated angular displacement. Angular displacement is determined in standard engineering units.

Abstract translation: 基于工程单位的可编程电子角位置指示器估计旋转转子的角位移。 角位置指示器通过转子上的齿（或其他标记）的特定排列来编程。 在有限数量的正角位移指示之间插入中间角位移。 由于转子的加速或减速而导致的偏移量在每个正角度位移指示下被校正，而不跳过每个内插的角位移的输出。 角位移以标准工程单位确定。

公开(公告)号：US5103668A

公开(公告)日：1992-04-14

申请号：US562272

申请日：1990-08-03

Applicant: Yves Drutel ,  Marc Miettaux

Inventor： Yves Drutel ,  Marc Miettaux

IPC: F02M65/00 ,  F02D41/34 ,  F02D41/36 ,  F02D45/00 ,  F02P7/067 ,  G01D5/14 ,  G01D5/249

CPC classification number: G01D5/145 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/36 ,  F02P7/067 ,  G01D5/2492 ,  Y02T10/44

Abstract: A detection process and device for electronic injection control of a multicylinder engine of an automobile engine, which performs the functions of measuring the speed of rotation of the engine, pinpointing the angular position of the top dead center of each cylinder of the engine, and identifying at any time which one of the cylinders for which the injection of fuel is to take place. The device includes a multipolar ring provided with multiple north and south magnetic poles distributed alternately on the circumference of the ring; a pair of sensors sensitive to the magnetic field produced by the multipolar ring mounted facing the ring and spaced angularly from one another; and an electronic processing interface connected to the sensors to deliver signals to a computer for control of the electronic injection of the engine.

Abstract translation: 用于汽车发动机的多缸发动机的电子喷射控制的检测过程和装置，其执行测量发动机的转速的功能，精确定位发动机的每个气缸的上死点的角位置，以及识别 在任何时候，将要进行燃料喷射的气瓶中的哪一个。 该装置包括多个环，该多极环具有交替地分布在环的圆周上的多个北，南磁极; 一对对由多极环产生的磁场敏感的传感器，其面向环并且彼此成角度地间隔开; 以及连接到传感器以将信号传送到计算机以用于控制发动机的电子注射的电子处理接口。

公开(公告)号：US5070727A

公开(公告)日：1991-12-10

申请号：US614828

申请日：1990-11-16

Applicant: Michael A. Davis ,  Philip A. Karau

Inventor： Michael A. Davis ,  Philip A. Karau

IPC: F02B77/08 ,  F02D45/00 ,  F02P3/045 ,  F02P7/03 ,  F02P7/067 ,  G01D5/249 ,  G01M15/06

CPC classification number: F02P7/067 ,  F02P3/0456 ,  F02P7/035 ,  F02P7/0675 ,  G01D5/2492 ,  G01M15/06

Abstract: A crankshaft angular position detecting apparatus for detecting the angular position of the crankshaft of an internal combustion engine. The crankshaft drives a timing wheel which has a plurality of circumferentially spaced slots located along its outer periphery. Two angularly spaced sensors are located adjacent the slots. The sensors develop voltage pulses as the slots move past the sensors. Two phase-displaced pulse trains are developed, one by each sensor, as the wheel rotates. The pattern of slots and the angular spacing of the sensors is such that a varying number of pulses of one pulse train occurs between consecutively occurring pulses of the other pulse train. The varying number of pulses provide different patterns and each pattern is indicative of a crankshaft position. The timing wheel is secured to the engine crankshaft and is located inside of the engine.

公开(公告)号：US5068529A

公开(公告)日：1991-11-26

申请号：US453986

申请日：1989-12-20

Applicant: Kou Ohno ,  Tetsuo Hattori ,  Tsuyoshi Matsumoto

Inventor： Kou Ohno ,  Tetsuo Hattori ,  Tsuyoshi Matsumoto

IPC: G01D5/249 ,  H03M1/28 ,  H03M1/30

CPC classification number: G01D5/2492 ,  H03M1/282 ,  H03M1/308

Abstract: An absolute position detection encoder includes a coder having a track provided with first graduations of an absolute pattern and second graduations of an incremental pattern, plural sensors movable relative to the coder along the longitudinal direction of the track, and a signal processing circuit for processing detection pulse trains, obtained upon reading the first graduations by the sensors, in synchronism with the time point corresponding to approximately the mid position of the minimum reading unit of the first graduation. The encoder outputs the relative position between the coder and the sensors in the form of parallel code signals as the absolute position read out from the absolute pattern graduations on the coder. By detecting the absolute pattern in synchronism with the time point corresponding to substantially the middle of the minimum reading unit of the first graduations, an absolute position detection signal of the correct code contents free of readout errors may be taken out for both the forward and reverse directions of the relative movement. On account of the signal selection function by the binary repetitive rectangular signal obtained from the incremental pattern reading results, the absolute position detection signal of the correct code contents may be taken out simultaneously with turn-on of the power source. The binary repetitive rectangular signal may also be used for generating a sub-scale signal for substantially improving the resolving power.

Abstract translation: 绝对位置检测编码器包括编码器，该编码器具有设置有绝对图案的第一刻度和增量图案的第二刻度的多个传感器，沿着轨道的纵向相对于编码器可移动的多个传感器，以及用于处理检测的信号处理电路 与第一刻度的最小读取单元的大致中间位置对应的时间点同步地由传感器读取第一刻度而获得的脉冲序列。 编码器以编码器的形式从绝对位置读出的绝对位置以并行码信号的形式输出编码器和传感器之间的相对位置。 通过与第一刻度的基本上与最小读取单元的大致中间相对应的时间点同步地检测绝对图案，可以取出没有读出误差的正确代码内容的绝对位置检测信号，用于正向和反向 方向相对运动。 由于通过从增量图案读取结果获得的二进制重复矩形信号的信号选择功能，可以在电源的接通时同时取出正确的代码内容的绝对位置检测信号。 二进制重复矩形信号也可以用于产生用于大大提高分辨率的子标度信号。

公开(公告)号：US4965503A

公开(公告)日：1990-10-23

申请号：US328013

申请日：1989-03-23

Applicant: Tsuneo Watanabe ,  Kouzou Okada

Inventor： Tsuneo Watanabe ,  Kouzou Okada

IPC: G01D5/245 ,  G01D5/249 ,  H03M1/24

CPC classification number: G01D5/2492 ,  G01D5/2455

Abstract: A positional information generating apparatus comprises a code disposed on a main track on which M-sequence codes form a cyclic code of different code words, and sensors disposed for attaining relative movement with reference to a direction of the main track. The code word is detected from the main track by the sensors for generating positional information. A sensor array for the main track in which a greater number of sensors than the number of elements of a code word are disposed over a span corresponding to a length of one code word in such a way that at least one sensor is located on each code element to define a code word to be read. A relative position detector is provided for detecting a relative positional relationship between the sensor array for the main track and the main track. A sensor selecting circuit selects a sensor for each code element from the sensor array for the main track, which is in a position to detect the code element, based on the detection signal from the relative position detector, and allows transmission of the detection signal from said sensor. A main track includes a cyclic code of different code words disposed thereon, and a sub-track includes discrimination elements arranged cyclically along the main track.

Abstract translation: 一种位置信息生成装置，其特征在于，包括配置在主轨道上的代码，M序列码形成不同码字的循环码，以及传感器，被设置为相对于主轨道的方向实现相对移动。 通过用于产生位置信息的传感器从主轨道检测码字。 用于主轨道的传感器阵列，其中比对应于一个码字的长度的跨度的数量的多个传感器的数量比码字的元件的数量更多，以使得至少一个传感器位于每个代码上 元素来定义要读取的代码字。 提供了一种相对位置检测器，用于检测用于主轨道的传感器阵列与主轨道之间的相对位置关系。 传感器选择电路基于来自相对位置检测器的检测信号，从处于检测码元的位置的主轨道的传感器阵列中选择每个码元的传感器，并且允许从 传感器。 主轨道包括布置在其上的不同码字的循环码，并且子轨道包括沿主轨道循环布置的鉴别元件。

公开(公告)号：US4924830A

公开(公告)日：1990-05-15

申请号：US341144

申请日：1989-04-20

Applicant: Kunihiro Abe

Inventor： Kunihiro Abe

IPC: F02D45/00 ,  F02P7/067 ,  F02P7/077 ,  F02P17/00 ,  G01D5/249

CPC classification number: F02P7/0775 ,  F02P7/0675 ,  G01D5/2492

Abstract: A disk is secured to a camshaft of an engine, and a plurality of projections are provided on a periphery of the disk in angular ranges of a crankshaft which are out of angular ranges where the engine stops frequently. Projections in each range are arranged to indicate a specific cylinder of the engine. A sensor is provided for sensing the projections and for producing cylinder representing signal. A discriminator is provided for producing discriminating signals representing respective cylinders in accordance with the cylinder representing signals.

Abstract translation: 盘被固定到发动机的凸轮轴上，并且在曲轴的角度范围内在发动机频繁停止的角度范围内的盘的周边上设置有多个突起。 每个范围中的投影被布置为指示发动机的特定气缸。 提供了用于感测突起并产生表示信号的气缸的传感器。 提供鉴别器，用于根据汽缸表示信号产生表示各个汽缸的识别信号。

公开(公告)号：US4866269A

公开(公告)日：1989-09-12

申请号：US195760

申请日：1988-05-19

Applicant: Marek T. Wlodarczyk ,  Dah-Lain Tang

Inventor： Marek T. Wlodarczyk ,  Dah-Lain Tang

IPC: F02D41/34 ,  F02P7/073 ,  G01D5/249 ,  G01P3/486 ,  G01P3/489

CPC classification number: F02D41/0097 ,  F02D41/009 ,  F02P7/073 ,  G01D5/2492 ,  G01P3/486 ,  G01P3/489

Abstract: A fiber optic detector head senses a light reflective or transmissive pattern on an encoder disk rotated by an engine shaft. The pattern results in four different light levels which are translated by a detector into an electrical pulse train having four different voltages including a reference or background voltage. One light level is reserved for an index mark, another level for cylinder position marks and still another level for finer measurement of position and speed between the cylinder marks. Patterns encoded into the single pulse train are decoded by a microprocessor to provide specific engine cylinder position information as well as engine speed information.

Abstract translation: 光纤检测器头感测由发动机轴旋转的编码器盘上的光反射或透射图案。 该图案导致由检测器转换成具有包括参考或背景电压的四个不同电压的电脉冲串的四个不同的光级。 保留一个指示标记的光级别，另一个级别用于气缸位置标记，另一个级别用于精确测量气缸标记之间的位置和速度。 编码到单个脉冲串中的模式由微处理器解码以提供特定的发动机气缸位置信息以及发动机速度信息。