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公开(公告)号：US5034621A
公开(公告)日：1991-07-23
申请号：US133755
申请日：1987-12-16
IPC分类号： H03K17/95
CPC分类号： H03K17/9547 , H03K17/9505 , Y10T307/773
摘要： A proximity switch assembly (10) for signaling the location of a movable member (36) at either of opposite end limits of movement relative to a stationary frame (44, 46) includes a compact elongate housing (58) adapted to be mounted on the frame to extend along the path of movement of a power driven member (32), such as the piston rod of a hydraulic cylinder, which shifts the movable member between its end limits. The proximity switch is fixedly mounted in the housing and carries a switch actuating member (68) mounted for sliding movement over a relatively short distance sufficient to move an actuating target (74) into and out of actuating proximity of an air core proximity sensing coil (120) within the housing. Lost motion abutment shoulders (70, 72) on the switch actuation member and power driven member (54) move into engagement with each other as a power driven member approaches each end of its stroke.
摘要翻译： 用于在可移动构件（36）的相对于静止框架（44,46）的相对移动相对端限度的任何一个处指示位置的接近开关组件（10）包括紧凑的细长壳体（58），适于安装在 框架沿着诸如液压缸的活塞杆的动力驱动构件（32）的运动路径延伸，其使可移动构件在其终点之间移动。 接近开关固定地安装在壳体中并且承载开关致动构件（68），该开关致动构件（68）安装成用于在足够的相对短的距离上滑动运动，以使致动目标（74）移动到和离开致动机构接近感应线圈 120）。 当动力驱动构件接近其行程的每一端时，开关致动构件和动力驱动构件（54）上的失速运动邻接肩（70,72）彼此接合。
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22.发明授权
公开(公告)号：US4755637A
公开(公告)日：1988-07-05
申请号：US103031
申请日：1987-09-30
申请人： Werner Turck
发明人： Werner Turck
CPC分类号： G01B7/14 , H03K17/9505
摘要： A proximity switch adapted to be threaded into a pressure cylinder, with the proximity switch including a sensor part insertable into a bore or opening of a cylinder wall of the pressure cylinder for detecting a position of the piston. A housing of the proximity switch includes a metal casing for accommodating a sensor part of the proximity switch, a front cap for sealing the metal casing, an a housing section attached to the metal casing and including a cable connection portion. A continuously extending output collar is provided at a rear end of the metal casing, with the collar being adapted to be fixedly clamped against the cylinder wall by a mounting gland extending behind a rear face thereof or by a coupling ring.
摘要翻译： 接近开关，其适于螺纹连接到压力缸中，其中接近开关包括可插入压力缸的气缸壁的孔或开口中的传感器部分，用于检测活塞的位置。 接近开关的壳体包括用于容纳接近开关的传感器部分的金属壳体，用于密封金属壳体的前盖，附接到金属壳体并包括电缆连接部分的壳体部分。 连续延伸的输出轴环设置在金属壳体的后端处，其中套环适于通过在其背面后面延伸的安装压盖或耦合环固定地夹紧在气缸壁上。
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23.发明授权
公开(公告)号：US4455528A
公开(公告)日：1984-06-19
申请号：US284998
申请日：1981-07-20
申请人： Heinz Walker
发明人： Heinz Walker
CPC分类号： H03K17/9505
摘要： A contactless inductive proximity switch contains an oscillator which is formed of a parallel arrangement of an oscillator coil and an oscillator capacitor connected to an integrated circuit. The oscillator coil is provided with a relatively few number of wire turns so as to occupy a relatively small portion of the volume in the cup core. The capacity of the oscillator capacitor is selected to match the oscillator coil. A hard water is retained within the cup core by a casting resin, and protects the oscillator coil from damage.
摘要翻译： 非接触式电感式接近开关包括由与振荡器线圈和连接到集成电路的振荡电容器并联布置的振荡器。 振荡器线圈设置有相对较少数量的线圈，以便占据杯芯中体积的相对小的一部分。 选择振荡器电容的容量以匹配振荡器线圈。 硬水通过铸塑树脂保持在杯芯内，并保护振荡器线圈免受损坏。
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公开(公告)号：US4378504A
公开(公告)日：1983-03-29
申请号：US365039
申请日：1982-04-02
申请人： Hiroyuki Yamasaki
发明人： Hiroyuki Yamasaki
CPC分类号： H03K17/9537 , H03K17/9505 , Y10T307/766
摘要： A high-frequency oscillation type proximity switch comprising a resonance circuit in which a detection coil is used as a pickup for sensing the approach of an object thereto and a resonance capacitor is disposed at a position very close to the detection coil so that the resistance of a cable connecting the resonance circuit to its associated oscillation circuit can be substantially ignored in the resonance circuit.
摘要翻译： 一种高频振荡型接近开关，其包括谐振电路，其中检测线圈用作用于感测物体接近的拾取器和谐振电容器，设置在非常接近检测线圈的位置处， 在谐振电路中可以基本上忽略将谐振电路连接到其相关联的振荡电路的电缆。
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公开(公告)号：US3707671A
公开(公告)日：1972-12-26
申请号：US3707671D
申请日：1970-05-01
申请人： ROBERT S MORROW , LLOYD D PENN , KENNETH E HAYS
发明人： MORROW ROBERT S , PENN LLOYD D , HAYS KENNETH E
CPC分类号： H03K17/9525 , H03K17/14 , H03K17/9505 , H03K17/9547
摘要： Electrical sensing apparatus such as proximity switches and vibration pickups of the type in which the distance between an inductor in the tank circuit of an oscillator and a metallic object in the field of the inductor is indicated by the amplitude at the output of the oscillator. The apparatus incorporates means adapted to compensate the output and/or sensitivity of the oscillator for temperature variations in either the inductor or the oscillator circuitry. Temperature compensation is achieved by means of thermistors, one of which is in series with the inductor and the other of which is in the oscillator network.
摘要翻译： 诸如接近开关和振动拾取器之类的电感测装置，其中振荡器的振荡电路中的电感器和电感器的场中的金属物体之间的距离由振荡器的输出处的幅度表示。 该装置包括适于补偿振荡器在电感器或振荡器电路中的温度变化的输出和/或灵敏度的装置。 温度补偿通过热敏电阻实现，其中一个与电感器串联，另一个在振荡器网络中。
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26.发明授权Magnetic sensor having a heat treated housing for collimating the sensor{40 s flux 失效具有用于收集传感器的热处理外壳的磁传感器
公开(公告)号：US3659194A
公开(公告)日：1972-04-25
申请号：US3659194D
申请日：1970-11-25
申请人： ALFRED A BLACKERBY
发明人： BLACKERBY ALFRED A
CPC分类号： G01N27/023 , H03K17/9505 , H03K17/9525
摘要： An eddy current sensing device wherein lines of flux are passed in one direction through a stainless steel membrane. The membrane is specially heat treated such that it collimates and permits passage of generated lines of flux yet provides an effective environmental shield that will allow operation even when the device is subjected to temperatures of up to 1,400* F. and pressures of up to 3,000 p.s.i. An impedance comparator circuit, including measuring and reference coils having virtually identical characteristics, is used to operate a meter to thereby indicate proximity and/or characteristics of conductive materials sensed. The magnetic flux of the measuring coil is shielded and collimated to provide localized sensing and reflected impedance variations between the two coils, which comprise legs of a bridge circuit, are detected and translated to distance, presence or other characteristic measurements, as represented by the output signal of the sensing device.
摘要翻译： 一种涡流检测装置，其中通量线通过不锈钢膜。 膜被特别热处理，使得其准直并允许生成的焊剂线通过，同时提供有效的环境屏蔽，即使当该装置经受高达1400°F的温度和高达3,000p.s.i的压力时，该屏蔽将允许操作。 阻抗比较器电路，包括具有实质上相同特性的测量和参考线圈，用于操作仪表，从而指示所感测的导电材料的接近和/或特性。 测量线圈的磁通被屏蔽和准直，以提供包括桥接电路的两个线圈的两个线圈之间的局部感测和反射阻抗变化，被检测并转换为距离，存在或其他特征测量，如输出 感测装置的信号。
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公开(公告)号：US20240333287A1
公开(公告)日：2024-10-03
申请号：US18618053
申请日：2024-03-27
申请人： Turck Holding GmbH
发明人： Torsten Wendler
IPC分类号： H03K17/95
CPC分类号： H03K17/9525 , H03K17/9505
摘要： An inductive proximity switch comprising signal oscillating circuit and a reference oscillating circuit; multiplexer circuit designed to alternately activate the signal oscillating circuit and the reference oscillating circuit; driver circuit having an oscillator designed to operate the activated signal oscillating circuit and the activated reference oscillating circuit with an oscillator frequency, respectively; detection module designed to determine a number of oscillations of the activated signal oscillating circuit measured within a predetermined gate time and a number of oscillations of the activated reference oscillating circuit measured within the predetermined gate time; and an evaluation module designed to determine a difference signal on basis of the determined number of oscillations of the activated signal oscillating circuit measured within the predetermined gate time and the determined number of oscillations of the activated reference oscillating circuit measured within the predetermined gate time, and to generate a control signal depending on the difference signal.
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公开(公告)号：US09239221B2
公开(公告)日：2016-01-19
申请号：US14061132
申请日：2013-10-23
申请人： Peter Heimlicher
发明人： Peter Heimlicher
CPC分类号： G01B7/14 , G01D11/245 , H01L23/047 , H01L23/3135 , H01L2224/45144 , H01L2224/49171 , H03K17/9505 , H01L2924/00
摘要： The present disclosure relates to a proximity sensor having a coil (15) for generating a magnetic field and a sensor circuit (62) for detecting variations of the magnetic field caused by an external object, the sensor circuit (62) comprising at least one semiconductor component (36, 37, 67, 69, 70, 71) mounted on a circuit board (17), wherein the coil (15) and the circuit board (17) are arranged in a housing (2) through which the magnetic field is transmittable. In order to improve the resistance of the proximity sensor against harmful external influences, such as high temperatures, and to prolong its life cycle, the invention suggests that the semiconductor component (36, 37, 67, 69, 70, 71) is included in an enclosure (20) that is hermetically sealed and fixed on a surface (18, 19) of the circuit board (17).
摘要翻译： 本公开涉及具有用于产生磁场的线圈（15）和用于检测由外部物体引起的磁场变化的传感器电路（62）的接近传感器，所述传感器电路（62）包括至少一个半导体 安装在电路板（17）上的部件（36,37,67,69,70,71），其中线圈（15）和电路板（17）布置在外壳（2）中，磁场是 可传输 为了提高接近传感器抵抗诸如高温等有害的外部影响并延长其寿命周期的电阻，本发明提出半导体部件（36,37,67,69,70,71）包含在 密封并固定在电路板（17）的表面（18,19）上的外壳（20）。
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公开(公告)号：US09231586B2
公开(公告)日：2016-01-05
申请号：US13449812
申请日：2012-04-18
申请人： Lothar Trunk , Alan Lowell Houp
发明人： Lothar Trunk , Alan Lowell Houp
CPC分类号： H03K17/9505 , H03K17/952
摘要： The invention relates, in particular, to an inductive proximity or distance sensor. The invention proposes that a core 9 of an inductive sensor unit 5 of the proximity sensor 1, which projects into a coil carrier 7, have a rectangular cross-sectional profile.
摘要翻译： 本发明特别涉及电感式接近或距离传感器。 本发明提出，将接近传感器1的电感式传感器单元5的芯体9投入到线圈架7中，具有矩形横截面轮廓。
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公开(公告)号：US09214936B2
公开(公告)日：2015-12-15
申请号：US13920799
申请日：2013-06-18
发明人： Myung-Sub Kum , Jong-Sang Noh , Jung-Min Lee
CPC分类号： G01D5/22 , G01R27/2611 , H01H21/26 , H01H2231/026 , H03K17/9502 , H03K17/9505 , H03K17/9545 , Y10T29/49126
摘要： A non-contact sensing module includes a coil printed circuit board in which a reference pattern coil may be formed at an upper surface and in which a sensing pattern coil may be formed at a lower surface and that has a mounting hole at the center, and a main printed circuit board that may be coupled to the mounting hole and that may be vertically disposed at an upper surface of the coil printed circuit board and that may be electrically connected to the reference pattern coil and the sensing pattern coil.
摘要翻译： 非接触感测模块包括线圈印刷电路板，其中可以在上表面形成参考图案线圈，并且可以在下表面形成感测图案线圈，并且在中心具有安装孔， 主印刷电路板，其可以联接到安装孔，并且可以垂直地布置在线圈印刷电路板的上表面处，并且可以电连接到参考图案线圈和感测图案线圈。
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