公开(公告)号：US20050162154A1

公开(公告)日：2005-07-28

申请号：US10502418

申请日：2003-01-23

申请人： Hendrik Mol ,  Johannes Duits

发明人： Hendrik Mol ,  Johannes Duits

IPC分类号： G01P3/487 ,  G01P3/48 ,  G01P3/54 ,  G01P3/66 ,  G01P3/80

CPC分类号： G01P3/487

摘要： Disclosed is a rotational speed sensor comprising a rotatable ring, e.g. connectable to a bearing. The rotational speed sensor has K magnetic pole pairs distributed angularly over the rotatable ring. Also, sensor means are present positioned relative to the rotatable ring such that a varying magnetic field is detected by the sensor means. The sensor means comprise a first pair of magnetic sensors, the first pair of magnetic sensors being positioned 2πL/K radians apart from each other. The sensor means may further comprise a second pair of magnetic sensors, the second pair of sensors being positioned 2πM/K radians apart from each other. The first pair of sensors and second pair of sensors are positioned at a relative position of (2π/K)*((2n−1)/2) radians.

摘要翻译： 公开了一种转速传感器，其包括可旋转的环，例如。 可连接到轴承。 转速传感器具有在可旋转环上角度分布的K个磁极对。 此外，传感器装置相对于可旋转环定位，使得传感器装置检测到变化的磁场。 传感器装置包括第一对磁传感器，第一对磁传感器被定位成彼此分开的2piL / K弧度。 传感器装置还可以包括第二对磁传感器，第二对传感器被定位成彼此分开的2piM / K弧度。 第一对传感器和第二对传感器位于（2pi / K）*（（2n-1）/ 2）弧度的相对位置。

公开(公告)号：US06043869A

公开(公告)日：2000-03-28

申请号：US710327

申请日：1996-09-16

申请人： Tetuya Uno ,  Junichi Takagi ,  Yasunobu Sakai

发明人： Tetuya Uno ,  Junichi Takagi ,  Yasunobu Sakai

IPC分类号： G01P3/80 ,  G01P3/36 ,  B60T7/16

CPC分类号： G01P3/806

摘要： A device for measuring the speed of an object. The device includes a spatial filter scheme to provide quick-response photodetectors and an efficient use of light. The device projects light onto the object by a light source 1, and the light reflected by the object is received by a lens. This light passes through aperture stop 4 and strikes prism array 7, where it is split alternately into two paths at a fixed pitch with respect to the optical axis. The two split beams are received respectively by two photodetectors. The speed of the object moving relative to the measuring device can be calculated based on the data collected by photodetectors.

摘要翻译： 用于测量物体速度的装置。 该装置包括空间滤波器方案以提供快速响应光电检测器和有效利用光。 该装置通过光源1将光投射到物体上，并且由物体反射的光被透镜接收。 该光通过孔径光阑4并撞击棱镜阵列7，在该棱镜阵列7处，它以相对于光轴的固定间距交替地分成两条路径。 两个分离光束分别由两个光电检测器接收。 物体相对于测量装置移动的速度可以基于由光电检测器收集的数据来计算。

公开(公告)号：US5652509A

公开(公告)日：1997-07-29

申请号：US533071

申请日：1995-09-25

申请人： Manfred Weis

发明人： Manfred Weis

IPC分类号： G01P3/64 ,  B65H61/00 ,  D01H13/32 ,  G01P3/80 ,  G01P3/36 ,  B65H59/38 ,  B65H63/00

CPC分类号： G01P3/806 ,  B65H61/005 ,  B65H2701/31

摘要： A device for determining the velocity of a longitudinally traveling textile material, especially a yarn, using the closed-loop correlation of a transit time correlator in such a way that its reliability is improved. At least one sensor g.sub.1 consists of two signal receivers disposed one behind the other in the running direction of the yarn, having a sensor output characteristic curve with the intersection of the abscissa in the effective sensor center axis, and wherein the output characteristic curve shows a point-symmetrical behavior at least in the vicinity of the intersection with the abscissa. A second sensor g.sub.2 has a steady state output characteristic curve in the area of its effective sensor center axis. The control loop circuit of the transit time correlator is designed such that the undifferentiated cross-correlation function is used as the controller input signal for determining and readjusting the adjustment point for the model delay time .tau.. Optionally, the output characteristic curves of the sensors have amplified outputs. The determination of the adjustment point and the stability of the control loop circuit can be further improved by the use of a third sensor with an output characteristic curve corresponding to that of the second sensor, and of a fourth sensor for providing a range preselection for the feed-back integrator of the transit time correlator.

摘要翻译： 一种用于通过传播时间相关器以使得其可靠性得到改善的方式来确定纵向移动的纺织材料，特别是纱线的速度的装置。 至少一个传感器g1由在纱线的运行方向上一个接一个地设置的两个信号接收器组成，具有传感器输出特性曲线，横坐标在有效传感器中心轴线上，其中输出特性曲线显示为 至少在与横坐标交叉点附近的点对称行为。 第二传感器g2在其有效传感器中心轴的区域中具有稳态输出特性曲线。 通过时间相关器的控制回路电路被设计成使得未分化互相关函数用作用于确定和重新调整模型延迟时间τ的调整点的控制器输入信号。 可选地，传感器的输出特性曲线具有放大的输出。 可以通过使用具有与第二传感器的输出特性曲线相对应的输出特性曲线的第三传感器和用于为第二传感器提供范围预选的第四传感器来进一步提高调节点​​的确定和控制回路电路的稳定性 通过时间相关器的反馈积分器。

公开(公告)号：US5541732A

公开(公告)日：1996-07-30

申请号：US394035

申请日：1995-02-24

申请人： Philippe Forin

发明人： Philippe Forin

IPC分类号： G01P3/80 ,  G01B9/02 ,  G01P3/36

CPC分类号： G01P3/806

摘要： For measuring an amount of relative movement between two elements, such as a vehicle and a track, which are mutually movable, two successive pulses of coherent light are directed from the vehicle to the track under a same incidence angle. From a same location of the vehicle, two images of the interference patterns due to the short pulses are formed. The two pulses are offset from each other in the direction of movement by a distance d approximately corresponding to the amount of relative movement between the two pulses. The actual amount of movement is computed as being the movement which provides the best coincidence between the two images. The comparison can be made by cross-correlation.

摘要翻译： 为了测量可相互移动的两个元件（例如车辆和轨道）之间的相对移动量，相干光的两个连续脉冲以相同的入射角从车辆引导到轨道。 从车辆的相同位置，形成由于短脉冲引起的干涉图形的两个图像。 两个脉冲在运动方向上彼此偏移大约对应于两个脉冲之间的相对移动量的距离d。 实际的运动量被计算为提供两个图像之间最佳重合的运动。 可以通过互相关来进行比较。

公开(公告)号：US5361131A

公开(公告)日：1994-11-01

申请号：US928303

申请日：1992-08-12

申请人： Tamiki Tekemori ,  Yuji Kobayashi

发明人： Tamiki Tekemori ,  Yuji Kobayashi

IPC分类号： G01B11/00 ,  G01B11/16 ,  G01P3/36 ,  G01P3/38 ,  G01P3/80 ,  G01B9/02

CPC分类号： G01P3/806 ,  G01P3/366

摘要： An optical displacement measuring apparatus of the present invention optically measures a displacement amount of an object. The apparatus includes: image forming means for forming an image indicative of the displacement amount of the object achieved between first and second timings; first modulating means for modulating coherent light in accordance with the image; first Fourier transform means for subjecting the coherent light modulated by said first modulating means to Fourier transformation to thereby form a first Fourier image; second modulating means for modulating coherent light in accordance with the first Fourier image; second Fourier transform means for subjecting the coherent light modulated by said second modulating means to Fourier transformation to thereby form a second Fourier image; detecting means for detecting peak position of the second Fourier image indicative of the displacement amount of the object between the first and second timings; and time interval adjusting means for adjusting a time interval defined between the first and second timings.

摘要翻译： 本发明的光学位移测量装置光学测量物体的位移量。 该装置包括：图像形成装置，用于形成指示在第一和第二定时之间实现的对象的位移量的图像; 用于根据图像调制相干光的第一调制装置; 第一傅里叶变换装置，用于对由所述第一调制装置调制的相干光进行傅里叶变换，从而形成第一傅里叶图像; 第二调制装置，用于根据第一傅里叶图像调制相干光; 第二傅立叶变换装置，用于对由所述第二调制装置调制的相干光进行傅里叶变换，从而形成第二傅里叶图像; 检测装置，用于检测表示第一和第二定时之间物体的位移量的第二付里叶图象的峰值位置; 以及时间间隔调整装置，用于调整在第一和第二定时之间限定的时间间隔。

公开(公告)号：US4309104A

公开(公告)日：1982-01-05

申请号：US191368

申请日：1980-09-29

申请人： Reinhard Prinz ,  Karl Felle

发明人： Reinhard Prinz ,  Karl Felle

IPC分类号： G01C11/02 ,  G01P3/36 ,  G01P3/80 ,  G01C3/08

CPC分类号： G01P3/806 ,  G01C11/02 ,  G01P3/36

摘要： The invention contemplates use of a cylindrical lens oriented transverse to an aircraft axis, in conjunction with two light-sensitive detectors in the image plane of the lens, to develop two time-displaced electrical output signals which represent aircraft-motion scanning of terrain by the respective detectors; basically simple circuitry develops the velocity-altitude ratio by measuring the instantaneous displacement time between the two signals. The same cylindrical lens and detecting circuitry may be provided in multiple and in particular relative orientations, to additionally develop drift-angle of the aircraft axis with respect to its instantaneous ground-velocity vector.

摘要翻译： 本发明考虑使用横向于飞机轴线的圆柱形透镜，与透镜的图像平面中的两个感光检测器结合，以形成两个时间位移的电输出信号，其代表地形的飞行器运动扫描 各检测器; 基本简单的电路通过测量两个信号之间的瞬时位移时间来形成速度 - 高度比。 相同的柱面透镜和检测电路可以以多个且特别是相对取向提供，以额外地显现飞行器轴线相对于其瞬时地面速度矢量的漂移角度。

公开(公告)号：US4210399A

公开(公告)日：1980-07-01

申请号：US879046

申请日：1978-02-21

申请人： Atul Jain

发明人： Atul Jain

IPC分类号： G01P3/36 ,  G01P3/80

CPC分类号： G01P3/36 ,  G01P3/806

摘要： Apparatus for detecting relative motion between a rough reflecting surface and a wave transmitting and receiving system in a plane parallel or perpendicular to the reflecting surface comprised of a transmitter (radar, laser, acoustic, and the like), a receiver having the same or different aperture as the transmitter, and means for detecting the finest interference fringes in the reflected wave pattern. Each fringe detected represents relative motion through a distance, S, that is a function of the maximum dimension, D, of the transmitting aperture. By counting fringes, total relative motion is determined, and by counting fringes for a unit of time, the rate of that motion is determined. For a small transmitting aperture, the distance, S, between fringes is directly related to kD in the parallel plane and to kD/tan .theta., in the normal plane, where .theta. is the angle between a reference axis normal to the reflecting surface and the axis of the receiving aperture, and k is a calibration constant equal to unity when the transmitting and receiving apertures are at the same distance, H, from the reflecting surface. For a large aperture, S.perspectiveto..lambda.H/kD in the parallel plane and S.perspectiveto..lambda.H/kD tan .theta. in the normal plane. In either plane, for the condition of k.perspectiveto.1, the spacing S.perspectiveto..lambda.H/D and S.perspectiveto..lambda.H/D tan .theta. can be measured with a linear scan array so that with .lambda., D and .theta. known, the distance H can be determined.

摘要翻译： 用于检测平行或垂直于由发射器（雷达，激光，声学等）组成的反射表面的平面中的粗糙反射表面和波发射和接收系统之间的相对运动的装置，具有相同或不同的接收器 孔径作为发射器，以及用于检测反射波图案中最好的干涉条纹的装置。 每个检测到的边缘表示通过距离S的相对运动，S是发射孔径的最大尺寸D的函数。 通过计算边缘，确定总相对运动，并且通过对一个单位时间的边缘计数，确定该运动的速率。 对于小的发射孔径，条纹之间的距离S与平行平面中的kD直线相关，并且在正常平面中与kD /tanθ直接相关，其中θ是垂直于反射表面的参考轴与 并且k是当发射和接收孔径距反射表面相同距离H时的校准常数等于1。 对于大孔径，平行平面中的S＆persp＆lambda H / kD和正常平面中的S＆persp＆lambda H / kDtanθ。 在任一平面中，对于k＆persp＆1的条件，可以用线性扫描阵列测量间距S＆persp＆lambda H / D和S＆persp＆lambda H / Dtanθ，以便利用λ，D和θ知道距离H 可以确定。

公开(公告)号：US4135155A

公开(公告)日：1979-01-16

申请号：US832570

申请日：1977-09-12

申请人： Albin Kehl ,  Hans-Georg Muller ,  Friedrich Scharf

发明人： Albin Kehl ,  Hans-Georg Muller ,  Friedrich Scharf

IPC分类号： G01P3/64 ,  G01P3/80 ,  G01P3/66

CPC分类号： G01P3/64 ,  G01P3/806

摘要： A plurality of sensors are located on one of the bodies, staggered by fixed distances from each other along the direction of relative movement. The sensors are responsive to a characteristic of the other body, for example to surface characteristics of a roadway. A sensed signal, picked up by a first, or leading sensor is time delayed for a predetermined time interval, and compared with signals received from all the other sensors. Upon optimum correlation, and with known time delay and distance between sensors, the relative speed can then be indicated by determining which one of the sensors picked up the signals which matched the time delay signal. The amplitudes of the signals can be dynamically equalized and the time delay itself changed to permit output over wide ranges, or with respect to different scaling units.

摘要翻译： 多个传感器位于其中一个主体上，沿着相对运动的方向彼此固定距离交错。 传感器响应于另一身体的特征，例如对于道路的表面特征。 由第一或前导传感器拾取的感测信号被延时预定时间间隔，并与从所有其他传感器接收的信号进行比较。 在最佳相关性和已知的时间延迟和传感器之间的距离之后，可以通过确定哪个传感器拾取符合时间延迟信号的信号来指示相对速度。 信号的幅度可以被动态地均衡，并且时间延迟本身改变以允许在宽范围内输出，或者相对于不同的缩放单位输出。

公开(公告)号：US4079323A

公开(公告)日：1978-03-14

申请号：US743533

申请日：1976-11-22

申请人： Carl G. Blanyer

发明人： Carl G. Blanyer

IPC分类号： B61L1/10 ,  G01P3/80 ,  G01P13/00 ,  H04B10/22 ,  H04B7/14 ,  G01P3/66

CPC分类号： B61L1/10 ,  G01P13/00 ,  G01P3/803 ,  H04B10/25

摘要： An interface logic circuit for supplying direction of passage data to a data utilization apparatus from a moving-object sensor which generates three recognition signals indicative of intrusion of an object into the left end, center, and right end, respectively, of a sensing space adjacent the sensor, comprising directional logic means for generating left-to-right and right-to-left object passage signals in response to the recognition signal sequences left-center-right and right-center-left, respectively, independently of overlap between the recognition signals or duration of the individual signals, and inhibit logic means for inhibiting generation of both object passage signals for all other recognition signal occurrence sequences.

摘要翻译： 一种接口逻辑电路，用于从运动物体传感器向数据利用装置提供通过数据的方向，所述移动物体传感器分别产生指示物体侵入相邻的感测空间的左端，中心和右端的三个识别信号 所述传感器包括分别响应于所述识别信号序列左右右中心向左和右中心左侧而分别产生从左到右和从右到左物体通过信号的定向逻辑装置，独立于识别之间的重叠 信号或持续时间，并且禁止用于抑制所有其他识别信号发生序列的两个对象通过信号的产生的逻辑装置。

公开(公告)号：US3804518A

公开(公告)日：1974-04-16

申请号：US24923572

申请日：1972-05-01

申请人： HASLER AG

发明人： MEYR H

IPC分类号： G01P3/80 ,  G01P3/36

CPC分类号： G01P3/806

摘要： A device for a moving body, to measure the speed of the moving body over a surface having local irregular features, having sources to illuminate local areas of the surface under a leading and a trailing photo-electric converter on the moving body which produce two sequences of electrical signals which correspond to the irregular feature of the surface at two points running in common with the body, that are spaced one from the other in the direction of movement. A delay unit with an adjustable delay for the signal output of the leading converter, a multiplication circuit for multiplying the delayed signals of the leading converter by the undelayed signals of the trailing converter, a low pass filter connected to the output of the multiplication circuit, a control circuit for adjusting the delay of the delay unit to a value which corresponds to a timely coincidence of the two consecutive signals obtained from the same point at the two inputs to the multiplication circuit, and an indicating device which on the basis of the delay time and the spacing of the two points indicates at any time the relative velocity of the moving body, so characterized that a filter is interposed in the connection between each photo-electric converter and the multiplication circuit, the frequency characteristics of which are different and so chosen that the valves obtained at the output of the low pass filter go through zero, when the delay time of the delay unit is equal to the time required to cover the said distance at the instant of the measurement.

摘要翻译： 一种用于移动体的装置，用于测量具有局部不规则特征的表面上的移动体的速度，具有用于照亮移动体上的前后光电转换器的表面的局部区域的源，其产生两个序列 的电信号，其对应于在与身体共同运行的两个点处的表面的不规则特征，其在运动方向上彼此间隔开。 具有对前导转换器的信号输出具有可调延迟的延迟单元，用于将前导转换器的延迟信号乘以拖尾转换器的未延迟信号的乘法电路，连接到乘法电路的输出的低通滤波器， 用于将延迟单元的延迟调整为对应于从两个输入到乘法电路的相同点获得的两个连续信号的及时重合的值的控制电路，以及基于延迟的指示装置 时间和两点的间距表示随时移动体的相对速度，其特征在于，在每个光电转换器和乘法电路之间的连接中插入滤波器，其频率特性不同 选择在低通滤波器的输出端获得的阀值为0，延迟单元的延迟时间为e 符合在测量时刻覆盖所述距离所需的时间。