公开(公告)号：US07652469B2

公开(公告)日：2010-01-26

申请号：US11777578

申请日：2007-07-13

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01B7/14 ,  H01F5/00

CPC分类号： G01D5/202

摘要： An inductive position sensor has a spatially periodic scale with a series of conducting or permeable features of pitch T and a reading head with drive windings and sense windings, facing the scale with a spatial period 2T along the scale. The windings are each divided in two identical winding elements,having the same relative location within two identical winding element patterns having a center-to-center distance along the scale of NT+T/2, N being an integer, and connected so that the winding element polarities in each winding are either opposed for drive windings and the same for sense windings or the same for drive windings and opposed for sense windings. Thereby, direct couplings in both patterns cancel each other, while the spatially periodic signals coupled via the scale reinforce each other.

摘要翻译： 感应位置传感器具有空间周期尺度，具有一系列具有节距T的导电或可渗透特征，以及具有驱动绕组和感测绕组的读取头，其面向刻度，沿着刻度具有空间周期2T。 绕组分成两个相同的绕组元件，在两个相同的绕组元件图案中具有相同的相对位置，其中NT-T / 2的刻度具有中心到中心的距离，N是整数，并且连接成使得 每个绕组中的绕组元件极性与驱动绕组相反，对于感测绕组或与驱动绕组相同，并且与感测绕组相对。 因此，两个图案中的直接耦合彼此抵消，而经由比例耦合的空间周期信号相互加强。

公开(公告)号：US5804963A

公开(公告)日：1998-09-08

申请号：US785766

申请日：1997-01-21

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01B7/00 ,  G01D5/20 ,  G01D5/245 ,  G08C19/06

CPC分类号： G01D5/202

摘要： The inductive displacement sensor includes a first element of cursor (31) and a second element or scale (32) exhibiting spatially periodic electromagnetic characteristics, such as windows (321) and traverses (322). The first element (31) has a series of windings, e.g., three interlaced meander windings (31A to 31C) and an electronic circuit being connected to the windings on the first element to bring about a current in at least one of the windings (31A) and to measure the influence due to the position of the second element's spatially periodic electromagnetic characteristics on the inductances of at least a part of the windings (31B, 31C) of the first element (31). Such a displacement sensor is simple, rugged, small, draws little current and is insensitive to water.

摘要翻译： 感应位移传感器包括光标（31）的第一元件和呈现空间周期性电磁特性的第二元件或标尺（32），例如窗口（321）和横穿（322）。 第一元件（31）具有一系列绕组，例如三个交错的曲折绕组（31A至31C），并且电子电路连接到第一元件上的绕组，以在至少一个绕组（31A）中产生电流 ）并且测量由于第二元件的空间周期性电磁特性的位置对第一元件（31）的至少一部分绕组（31B，31C）的电感的影响。 这种位移传感器简单，坚固，小，吸入电流小，对水不敏感。

公开(公告)号：US20080084203A1

公开(公告)日：2008-04-10

申请号：US11867908

申请日：2007-10-05

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01D5/245

CPC分类号： G01D5/204

摘要： The pulsed coil drive for a sampled inductive transducer has at least one of its drive coils forming a series circuit with a capacitor whose free terminal is connected to the negative terminal of a voltage source. This series circuit is normally open, i.e. has no current during the intervals between pulses. Sampling occurs once per pulse and needs a minimum time for the sampled signal to settle to the required accuracy. Each pulse's sampling interval is preceded by a pre-sampling interval and followed by a post-sampling interval. The supply voltage is applied across the series circuit during both the pre- and post-sampling intervals by switching the coil's free terminal to the voltage source's positive terminal through a p-channel mosfet. During the sampling interval, the series circuit is shorted by switching the coil's free terminal to the voltage source's negative terminal through an n-channel mosfet. The resulting coil current ramps from zero to a positive peak current before sampling, then to a negative peak current during sampling and back to zero after sampling. Most of the magnetic energy is thus recovered, instead of being dissipated after the pulse, and resistive losses are reduced, especially if the pulse is kept short enough by making the sum of the pre- and post-sampling intervals shorter than the sampling interval. The pulsed coil drive is easy to integrate in CMOS technology and can accommodate transducers with two or more drive coils. Its minimal power consumption and simple circuitry makes it suitable for inductive transducers in battery-powered and/or low cost instruments.

摘要翻译： 用于采样的感应换能器的脉冲线圈驱动器具有至少一个驱动线圈，其形成具有电容器的串联电路，其电容器的自由端子连接到电压源的负极端子。 该串联电路是常开的，即在脉冲间隔期间没有电流。 采样每脉冲发生一次，并且需要采样信号的最小时间达到所需的精度。 每个脉冲的采样间隔之前是预采样间隔，后跟采样后间隔。 通过p沟道MOSFET将线圈的自由端子切换到电压源的正端子，在采样间隔和采样间隔期间在串联电路上施加电源电压。 在采样间隔期间，通过n沟道MOSFET将线圈的自由端子切换到电压源的负极，使串联电路短路。 所得到的线圈电流在采样之前从零到正峰值电流，然后在采样期间到负峰值电流并且在采样之后回到零。 因此，大部分磁能被恢复，而不是在脉冲之后消散，并且电阻损耗减小，特别是如果通过使得采样间隔和采样间隔之和的时间间隔短于采样间隔，脉冲保持足够短的时间。 脉冲线圈驱动器易于集成在CMOS技术中，并且可以容纳具有两个或更多个驱动线圈的换能器。 其最小功耗和简单的电路使其适用于电池供电和/或低成本仪器中的感应式换能器。

公开(公告)号：USD478019S1

公开(公告)日：2003-08-05

申请号：US29153976

申请日：2002-01-15

申请人： Hans Ulrich Meyer

设计人： Hans Ulrich Meyer

公开(公告)号：US07880462B2

公开(公告)日：2011-02-01

申请号：US11867908

申请日：2007-10-05

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01B7/14

CPC分类号： G01D5/204

摘要： A pulsed coil drive for a sampled inductive transducer has at least one drive coil connected in a series circuit with a capacitor having a first terminal connected to the negative terminal of a voltage source. The series circuit is normally open during the intervals between pulses. Sampling occurs once per pulse. Each pulse's sampling interval is preceded by a pre-sampling interval and followed by a post-sampling interval. The supply voltage that is applied across the series circuit during both the pre- and post-sampling intervals is applied by switching a first terminal of the coil's free terminal to the voltage source's positive terminal through a p-channel MOSFET. During the sampling interval, the series circuit is shorted by switching the coil's free terminal to the voltage source's negative terminal through an n-channel MOSFET.

摘要翻译： 用于采样的感应换能器的脉冲线圈驱动器具有至少一个与串联电路连接的驱动线圈，电容器具有连接到电压源的负极端子的第一端子。 串联电路在脉冲之间的间隔期间是常开的。 每次脉冲采样一次。 每个脉冲的采样间隔之前是预采样间隔，后跟采样后间隔。 在采样间隔和采样间隔期间施加在串联电路上的电源电压通过p沟道MOSFET将线圈自由端子的第一端子切换到电压源的正极端而施加。 在采样间隔期间，串联电路通过n沟道MOSFET将线圈自由端子切换到电压源的负极短路。

公开(公告)号：US07015687B2

公开(公告)日：2006-03-21

申请号：US10462605

申请日：2003-06-17

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01B7/14 ,  G01B7/30

CPC分类号： G01D5/2053

摘要： The inductive position sensor includes a scale (10) with a series of conductive loops spaced out by a pitch T and a cursor (20) provided with conductors forming each a series of alternating hairpin turns spaced out by a pitch T, the inducing (21 to 23; 42, 44) and induced (31 to 33; 41, 43) cursor conductors are laid out in two separate interlaced conductor groups, coupling between inducing and induced conductors of the second group taking place only via the scale loops. Such a sensor is simple, robust, accurate, insensitive to external electromagnetic fields and tolerant of misalignment between cursor and scale.

摘要翻译： 感应位置传感器包括具有由间距T隔开的一系列导电环的标尺（10）和光标（20），光标（20）设置有形成每个由间距T间隔开的一系列交替的发夹匝的导体，诱导（21） 至23; 42，44）和感应（31至33,41,43）光标导体布置在两个独立的隔行导体组中，仅通过刻度环发生第二组的感应导体和感应导体之间的耦合。 这样的传感器简单，稳健，准确，对外部电磁场不敏感，并且容忍光标和刻度之间的不对准。

公开(公告)号：US5937533A

公开(公告)日：1999-08-17

申请号：US873589

申请日：1997-06-12

申请人： Hans Ulrich Meyer ,  Daniel Clerc

发明人： Hans Ulrich Meyer ,  Daniel Clerc

IPC分类号： G01B21/02 ,  G01B3/00 ,  G01B5/06 ,  G01B21/22 ,  G01B7/02

CPC分类号： G01B5/061 ,  G01B3/008

摘要： A measuring instrument comprises a column (10) on which is mounted a carriage (11) with a drive cursor (12) and a measuring cursor (20) sliding on the drive cursor (12) and carrying a measuring contact (24) and a measuring device (40). A measuring force device (25) is arranged between the two cursors and determines, thanks to a lever (26) a rest position and two measuring positions vertically upwardly or downwardly offset or corresponding to a predetermined measuring force on the member to be measured. A motor (15) displaces the drive cursor (12) and the position detector (36) permits measuring the relative position between the two cursors. A control unit (35) controls the speed and direction of rotation of the motor (15) as a function either of the signals (44) received from the position detector (36) or from two external contacts (42, 43). The carriage (11) is first displaced by means of the external contacts (42, 43) and as soon as the lag between the two cursors reaches an upper or lower limit, the control of the motor is effected as a function of the signals received from the position detector (36). There is thus obtained a double subjection of the speed of movement of the carriage and of the measuring force, permitting very precise and rapid measurements and rendering easy the measurement of profiles.

摘要翻译： 测量仪器包括一列（10），其上安装有具有驱动光标（12）的滑架（11）和在驱动光标（12）上滑动的测量光标（20），并承载测量触点（24）和 测量装置（40）。 测量力装置（25）布置在两个光标之间，由于杠杆（26）具有静止位置和垂直向上或向下偏移或对应于要测量的构件上的预定测量力的两个测量位置。 电动机（15）移动驱动光标（12），并且位置检测器（36）允许测量两个光标之间的相对位置。 控制单元（35）根据从位置检测器（36）接收的信号（44）或两个外部触点（42,43）来控制电动机（15）的转速和转动方向。 滑架（11）首先通过外部触头（42,43）移位，一旦两个光标之间的滞后达到上限或下限，马达的控制就会随接收到的信号而变化 从位置检测器（36）。 因此，获得了滑架的运动速度和测量力的双重偏移，允许非常精确和快速的测量并且使得容易测量轮廓。

公开(公告)号：US20080018328A1

公开(公告)日：2008-01-24

申请号：US11777578

申请日：2007-07-13

申请人： Hans Ulrich Meyer

发明人： Hans Ulrich Meyer

IPC分类号： G01B7/14 ,  H01F27/28 ,  H01F5/00

CPC分类号： G01D5/202

摘要： An inductive position sensor has a spatially periodic scale with a series of conducting or permeable features of pitch T and a reading head with drive windings and sense windings, facing the scale with a spatial period 2T along the scale. The windings are each divided in two identical winding elements having the same relative location within two identical winding element patterns having a center-to-center distance along the scale of NT+T/2, N being an integer, and connected so that the winding element polarities in each winding are either opposed for drive windings and the same for sense windings or the same for drive windings and opposed for sense windings. Thereby, direct couplings in both patterns cancel each other, while the spatially periodic signals coupled via the scale reinforce each other.

摘要翻译： 感应位置传感器具有空间周期尺度，具有一系列具有节距T的导电或可渗透特征，以及具有驱动绕组和感测绕组的读取头，其面向刻度，沿着刻度具有空间周期2T。 绕组分为两个相同的绕组元件，两个相同的绕组元件在两个相同的绕组元件图案内具有相同的相对位置，其沿着NT + T / 2的刻度具有中心到中心的距离，N是整数，并且连接成使得绕组 每个绕组中的元件极性与驱动绕组相反，对于感测绕组或与驱动绕组相同，并且与感测绕组相对。 因此，两个图案中的直接耦合彼此抵消，而经由比例耦合的空间周期信号相互加强。