Reticle for an object measurement system
    2.
    发明授权
    Reticle for an object measurement system 失效
    用于物体测量系统的光罩

    公开(公告)号:US06246478B1

    公开(公告)日:2001-06-12

    申请号:US09318170

    申请日:1999-05-25

    IPC分类号: G01B1100

    CPC分类号: H03M1/245 G01B3/004 G01B11/02

    摘要: A reticle for an object measurement system comprises a pattern 10 having a plurality of pairs of contrasting elements in the form of black (11′, 11″ . . . 14′14″) and white (21 . . . 24) wedges. Each black/white wedge pair defines a path towards a pattern origin 19 such that an edge of an object 50 occluding the path causes a change in contrast adjacent an edge point along the path. The pattern has a series of Gray-coded elements 15 associated with each pair of black/white wedges. The Gray-coded elements are indicative of an absolute coordinate of each edge point at which an object edge crosses a path. A series of triangles 16 associated with each pair of black/white wedges, whose absolute coordinates are known, allow a measurement system to provide accurate coordinates for each edge point.

    摘要翻译: 用于对象测量系统的掩模版包括具有多对黑色(11',11“”14“14”)和白色(21 ... 24')楔形形式的多对成对元件的图案10 。 每个黑/白楔形对限定朝向图案原点19的路径,使得遮挡路径的物体50的边缘导致沿着路径的边缘点的对比度的变化。 该图案具有与每对黑/白楔形物相关联的一系列灰色编码元件15。 灰色编码的元素表示对象边缘穿过路径的每个边缘点的绝对坐标。 与绝对坐标已知的每对黑/白楔子相关联的一系列三角形16允许测量系统为每个边缘点提供准确的坐标。

    Optically coupled gas meter
    3.
    发明授权
    Optically coupled gas meter 失效
    光耦合气量计

    公开(公告)号:US6087959A

    公开(公告)日:2000-07-11

    申请号:US84551

    申请日:1998-05-26

    摘要: A gas meter using optical communication. The meter includes a shaft that is rotated by a flow of gas, a first sensor for sensing a first rotational angle of the shaft, a second sensor for sensing a second rotational angle of the shaft, a first light source operated by the first sensor for issuing a first light signal, and a second light source operated by the second sensor for issuing a second light signal. One or more fiber optic cables carries the light signals to an external meter interface having an optical receiver. A rotation of the shaft is recognizable by the external receiver when first one then the other of the light signals is detected.

    摘要翻译: 一种使用光通信的气量计。 仪表包括通过气流旋转的轴,用于感测轴的第一旋转角的第一传感器,用于感测轴的第二旋转角的第二传感器,由第一传感器操作的第一光源, 发出第一光信号,第二光源由第二传感器操作以发出第二光信号。 一个或多个光纤电缆将光信号传送到具有光接收器的外部仪表接口。 当第一个,然后检测到另一个光信号时,轴的旋转可由外部接收器识别。

    Laser optical disk position encoder with active heads
    4.
    发明授权
    Laser optical disk position encoder with active heads 失效
    带活动头的激光光盘位置编码器

    公开(公告)号:US5107107A

    公开(公告)日:1992-04-21

    申请号:US506636

    申请日:1990-03-30

    申请人: Eric P. Osborne

    发明人: Eric P. Osborne

    IPC分类号: G01D5/347 H03M1/06 H03M1/24

    摘要: An angular position encoder is provided that minimizes the effects of eccentricity and other misalignments between the disk and the read stations by employing heads which incorporate beam steering optics with the ability to actively track the disk in directions along the disk radius and normal to its surface. The device adapts features prevalent in optical disk technology toward the application of angular position sensing. A reflective disk and the principles of interferometry are employed. The servo controlled steering optics move so as to acquire a track on the disk lying at a predetermined radius and distance below the head, and then adjust position and orientation in order to maintain view of the disk track as required. Thus, the device is actively self-aligning.

    摘要翻译: 提供了一种角位置编码器,其通过使用包含光束转向光学元件的头部具有沿着盘半径并且垂直于其表面的方向主动跟踪盘的能力的最小化圆盘和读取台之间的偏心和其它不对准的影响。 该装置将光盘技术中普遍存在的特征适应于角位置传感的应用。 采用反射盘和干涉测量原理。 伺服控制的转向光学器件移动,以便获得盘上位于头部以下预定半径和距离处的轨道,然后调整位置和方向,以便根据需要保持磁盘轨迹的视野。 因此,该装置是主动自对准的。

    Pressure responsive encoder
    5.
    发明授权
    Pressure responsive encoder 失效
    压力响应编码器

    公开(公告)号:US5051729A

    公开(公告)日:1991-09-24

    申请号:US158850

    申请日:1988-02-22

    申请人: Tommy L. Gray

    发明人: Tommy L. Gray

    摘要: A pressure responsive apparatus having an encoded disc provides preselected pressure indication. The apparatus preferably includes a pressure gauge having a Bourdon tube responsive to an external pressure. The Bourdon tube drives a conventional pointer indicator which has mounted thereto the encoded disc. Light is transmitted to the disc by means of fiber optic cables from a remotely positioned oscillator. Light if reflected by the disc at the preselected pressures and transmitted by fiber optic cables to processing circuitry that responds to reflected light signals as generated by the oscillator. To generate these light signals, light emitting diodes form a light source and the light signals are detected by means of phototransistors. For apparatus detecting two preselected pressures, there is a light source/light detector pair for each pressure. The processing circuitry responding to the outputs of the phototransistors generates visual indications of the preselected pressures.

    摘要翻译: 具有编码盘的压力响应装置提供预选压力指示。 该装置优选地包括具有响应于外部压力的波登管的压力计。 布尔登管驱动一个常规的指针指示器,其已经安装到编码盘上。 光通过远程摆放的光纤电缆传输到光盘。 如果光盘以预先选择的压力反射并被光纤电缆传输到响应由振荡器产生的反射光信号的处理电路,则光线如下。 为了产生这些光信号,发光二极管形成光源,并通过光电晶体管检测光信号。 对于检测两个预选压力的设备,每个压力都有一个光源/光检测器对。 响应于光电晶体管的输出的处理电路产生预选压力的视觉指示。

    Power assistance bicycle using sensor having multiple magnet blocks evenly distributed in housing
    8.
    发明申请
    Power assistance bicycle using sensor having multiple magnet blocks evenly distributed in housing 审中-公开
    动力辅助自行车使用具有均匀分布在壳体中的多个磁体块的传感器

    公开(公告)号:US20150203172A1

    公开(公告)日:2015-07-23

    申请号:US14417792

    申请日:2013-06-05

    发明人: Qiang Huang

    摘要: A power-assistance bicycle using a sensor having multiple magnet blocks evenly distributed in housing, related to electric power-assistance bicycles that provide a power-assistance signal with multipoint magnetic induction. The sensor comprises: a sensing element, a power assistance model processor (21), a digital-to-analog converter (27) and an operational amplifier (28). The sensing element comprises a rotating disk (1) and an annular-groove fixing disk (40) fitted with each other, and multiple permanent magnetic blocks (2) and the Hall element (3) are provided in a cavity of the rotating disk (1) and the annular-groove fixing disk (40). A plurality of permanent magnetic blocks (2) that are opposite in adjacent magnetic polarities are fixedly provided on the rotating disk (1). The Hall element (3) is provided on the fixing disk (40) and in proximity to the permanent magnetic blocks (2). The sensor is sleeved on an exterior of a medial shaft (51). The operational amplifier (28) is connected with the motor controller (29). Due to the relatively fixed positions of the permanent magnetic block (2) and the Hall element (3), the Hall element is capable of obtaining rectangular waves signals, so as to facilitate the sensor to output an adjustable and artificial setting power-assistance model having satisfying assistance power in the beginning and end via digital processing, thus allowing for optimal man-machine matching and for power conservation.

    摘要翻译: 一种电动辅助自行车,其使用具有均匀分布在壳体中的多个磁体块的传感器,与提供具有多点磁感应的功率辅助信号的电力援助自行车相关。 传感器包括:感测元件,动力辅助模型处理器(21),数模转换器(27)和运算放大器(28)。 感测元件包括旋转盘(1)和彼此嵌合的环形槽固定盘(40),并且多个永久磁块(2)和霍尔元件(3)设置在旋转盘的空腔中 1)和环形槽固定盘(40)。 在旋转盘(1)上固定设置与相邻磁极相反的多个永磁块(2)。 霍尔元件(3)设置在固定盘(40)上并且靠近永磁块(2)。 传感器套在内侧轴(51)的外部。 运算放大器(28)与马达控制器(29)连接。 由于永久磁块(2)和霍尔元件(3)的相对固定的位置,霍尔元件能够获得矩形波信号,以便于传感器输出可调和人工的设置功率辅助模型 通过数字处理在开始和结束时具有令人满意的辅助能力,从而允许最佳的人机匹配和节能。

    Low-profile multi-turn encoder systems and methods
    9.
    发明申请
    Low-profile multi-turn encoder systems and methods 有权
    低调多圈编码器系统和方法

    公开(公告)号:US20060092071A1

    公开(公告)日:2006-05-04

    申请号:US11228635

    申请日:2005-09-16

    申请人: Nils Andermo

    发明人: Nils Andermo

    IPC分类号: H03M1/12

    CPC分类号: H03M1/245 H03M1/22

    摘要: Various alternative embodiments of a multi-turn capacitive encoder device are disclosed. The device includes two members that are fixed relative to each other and that include respective capacitive electrodes that are capacitively coupled between the two members. The respective capacitive electrodes on one member act as transmitter electrodes and the respective capacitive electrodes on the other member act as receiver electrodes. One or more modulation members are relatively movable between the two fixed members to alter or modulate the capacitive coupling to correspond to the rotational or angular position of the modulation member(s). At least one of the modulation members is driven using a gear reduction system such that its angular or rotational position corresponds to a plurality of turns of the input shaft of the multi-turn encoder. A plurality of signals that depend on the capacitive coupling are used to determine the rotational or angular position of the modulation member(s) relative to the first two members. The present invention combines the elements outlined above to provide a multiturn encoder including few parts, simple assembly, a small axial dimension, and relatively high resolution and accuracy.

    摘要翻译: 公开了多匝电容编码器装置的各种替代实施例。 该装置包括相对于彼此固定的两个构件,并且包括电容耦合在两个构件之间的各自的电容电极。 一个部件上的各个电容电极用作发射电极,另一个部件上的各个电容电极用作接收器电极。 一个或多个调制构件可在两个固定构件之间相对移动,以改变或调制电容耦合以对应于调制构件的旋转或角度位置。 使用齿轮减速系统驱动至少一个调制构件,使得其角或旋转位置对应于多圈编码器的输入轴的多圈。 取决于电容耦合的多个信号用于确定调制构件相对于前两个构件的旋转或角位置。 本发明组合了上述元件以提供包括少量部件,简单组装,小轴向尺寸以及相对高分辨率和精度的多圈编码器。

    Encoder arrangement
    10.
    发明授权
    Encoder arrangement 失效
    编码器布置

    公开(公告)号:US07011248B2

    公开(公告)日:2006-03-14

    申请号:US10676198

    申请日:2003-10-01

    IPC分类号: G06K7/10

    摘要: An encoder arrangement is described, consisting of a motor with a motor shaft, on which a timing disk is secured, a signal source for producing an optical signal as well as a beam mask for shaping the optical signal. The arrangement is characterized in that the beam mask is provided with code bars having pit and land structures that have a diffraction and interference structure.

    摘要翻译: 描述了一种编码器装置,其包括具有马达轴的马达,固定有定时盘的信号源,用于产生光信号的信号源以及用于使光信号成形的波束掩模。 该装置的特征在于,光束掩模设置有具有衍射和干涉结构的凹坑和平台结构的码条。