公开(公告)号：US20240103032A1

公开(公告)日：2024-03-28

申请号：US18528828

申请日：2023-12-05

Applicant: PixArt Imaging Inc.

Inventor： CHUNG-MIN THOR ,  KUAN-CHOONG SHIM

IPC: G01P3/36 ,  G01P3/486

CPC classification number: G01P3/36 ,  G01P3/486 ,  G01D5/249

Abstract: There is provided an optical encoder including a phase shifter circuit and a multiple hysteresis comparators. The phase shifter circuit receives four input signals, and outputs multiple phase shifted signals based on the four input signals. Each of the multiple hysteresis comparators uses a changeable operation hysteresis level to compare a couple of phase shifted signals among the multiple phase shifted signals, wherein the changeable operation hysteresis level is determined corresponding to a signal frequency of the four input signals.

公开(公告)号：US20200225258A1

公开(公告)日：2020-07-16

申请号：US15771502

申请日：2016-10-27

Applicant: COMMAND ALKON DUTCH TECH B.V.

Inventor： Denis BEAUPRE

IPC: G01P3/486 ,  G01P13/04 ,  B28C5/42 ,  B28C7/02

Abstract: The application concerns a system for measuring the rotational speed of a drum rotatably mounted to a mixer truck, rotating relatively to the mixer truck and having a main axis inclined relative to the mixer truck, even in case that the drum is empty. A sensor is mounted to the empty drum and generates a sinusoidal signal as the drum rotates; the sensor could be a load sensor experiencing forces due to the changing influence of gravity during rotation, or a light intensity sensor responsive e.g. to variations of ambient light during rotation. The sensor signal is transmitted over a wireless connection to a receiver. The frequency of the sinusoidal signal is measured and output as the rotational speed of the rotating drum. The application also concerns the determination of a direction of rotation, based on a phase shift between two periodic signals. One signal could be the periodic intensity variation on a first wireless transmission path during a full rotation. The other could be a periodic intensity variation on a second wireless transmission path, or a periodic variation of a sensed value such as the output of a load sensor or light intensity sensor.

公开(公告)号：US10389283B2

公开(公告)日：2019-08-20

申请号：US14198705

申请日：2014-03-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshihiro Mizuo

IPC: H02P29/024 ,  G01P3/486 ,  H02P8/36 ,  H02P8/34

Abstract: A motor drive apparatus includes a drive unit to supply motor coils with sinusoidal drive signals, a signal output unit outputs signals that change with rotation of a rotor, and a control unit. The control unit acquires first information relating to the sinusoidal drive signals at a timing of change of a corresponding one of the output signals in a case where there is no follow-up delay of the rotor relative to the drive signals. When the corresponding one of the output signals is changed, the control unit acquires second information relating to the sinusoidal drive signals at a timing of change of the corresponding one of the output signals in a case where there is a follow-up delay of the rotor relative to the drive signals. The control unit corrects the follow-up delay of the rotor based on a determined difference between the first and second information.

公开(公告)号：US10295557B2

公开(公告)日：2019-05-21

申请号：US15553668

申请日：2016-02-04

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Markus Winkler ,  Richard Baier ,  Sergej Mensch

IPC: F16C19/00 ,  G01P3/44 ,  G01P3/486 ,  G01P3/487 ,  G01P3/488 ,  F16C33/58

Abstract: Sensor devices for a rolling bearing and roller bearings including said sensors are disclosed. The sensor device may include at least one sensor configured to connect to one bearing race in a manner fixed against relative rotation. At least one signal transmitter may be configured to connect to the other of the bearing races in a manner fixed against relative rotation. The sensor device may further include an outer ring configured to be fastened on an end face of the outer race of the rolling bearing and an inner ring configured to be fastened on an end face of the inner race of the rolling bearing. The sensor and the signal transmitter may be arranged on mutually opposite lateral surfaces of the outer and inner rings.

公开(公告)号：US10294080B2

公开(公告)日：2019-05-21

申请号：US15758562

申请日：2016-08-17

Applicant: INVENTIO AG

Inventor： Ivo Lustenberger

IPC: B65B25/00 ,  B66B25/00 ,  B66B27/00 ,  B66B1/34 ,  B66B1/32 ,  B66B5/00 ,  B66B23/02 ,  B66B29/00 ,  G01P3/36 ,  G01P3/486 ,  G01P13/04

Abstract: A device serves for determining the speed of a passenger-transporting system. The device includes an arrangement of auxiliary elements and a sensing device. The arrangement of the auxiliary elements rotates, in a manner corresponding to a movement of the passenger-transporting system. The sensing device can sense whether an auxiliary element is, or is not, located at a certain sensing location. The auxiliary elements are of a first configuration type and a second configuration type. The sensing device can sense whether an auxiliary element is of the first configuration type or of the second configuration type. Furthermore, the sensing device can assign an auxiliary element of the first configuration type and an auxiliary element of the second configuration type to one another such that the direction of rotation can be determined from the order in which the auxiliary elements are sensed.

公开(公告)号：US10291279B2

公开(公告)日：2019-05-14

申请号：US15891137

申请日：2018-02-07

Applicant: Apple Inc.

Inventor： Carl R. Peterson ,  Justin R. Wodrich ,  Kevin D. Gibbs ,  Samuel G. Smith

IPC: G01L5/00 ,  H04M1/18 ,  G01P3/486 ,  G01P3/488 ,  F16F15/067 ,  H04B1/3888

Abstract: An electronic device comprises a housing, a motion sensor configured to sense motion of the housing, and a processor configured to determine an impact geometry based on the motion. A countermeasure system comprises an actuator coupled to an actuated member. The actuated member is operable by the actuator to modify the impact geometry, so that impact energy is redirected away from an impact sensitive component of the electronic device to an energy absorbing component of the electronic device.

公开(公告)号：US09749000B2

公开(公告)日：2017-08-29

申请号：US15230793

申请日：2016-08-08

Applicant: Apple Inc.

Inventor： Carl R. Peterson ,  Justin R. Wodrich ,  Kevin D. Gibbs ,  Samuel G. Smith

IPC: G08B21/00 ,  H04B1/3888 ,  H04M1/18 ,  G01L5/00 ,  G01P3/486 ,  F16F15/067 ,  G01P3/488

CPC classification number: H04B1/3888 ,  F16F15/067 ,  F16F2230/0023 ,  G01L5/0066 ,  G01P3/486 ,  G01P3/488 ,  H04M1/185 ,  H04M2250/12

Abstract: An electronic device comprises a housing, a motion sensor configured to sense motion of the housing, and a processor configured to determine an impact geometry based on the motion. A countermeasure system comprises an actuator coupled to an actuated member. The actuated member is operable by the actuator to modify the impact geometry, so that impact energy is redirected away from an impact sensitive component of the electronic device to an energy absorbing component of the electronic device.

公开(公告)号：US09222957B2

公开(公告)日：2015-12-29

申请号：US13415829

申请日：2012-03-08

Applicant: Kuan-Ying Lu ,  Hsin-Chih Chen ,  Juan Bautista Belon

Inventor： Kuan-Ying Lu ,  Hsin-Chih Chen ,  Juan Bautista Belon

IPC: B62K25/02 ,  B60B27/02 ,  B60B35/00 ,  B62M6/40 ,  B62M6/45 ,  B62M6/50 ,  B62M6/60 ,  B62M6/65 ,  B62M6/90 ,  G01P3/22 ,  G01C9/10 ,  G01P3/486 ,  G01P15/18

Abstract: A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly that provides data to a control system related to velocity and angle of orientation of the assembly. A load transferring quick-release mechanism is also disclosed for coupling the wheel assembly to a vehicle wheel attachment frame member and a method is provided for calibrating the same.

公开(公告)号：US08718974B2

公开(公告)日：2014-05-06

申请号：US13258681

申请日：2010-03-19

Applicant: Kiyonari Kishikawa ,  Kouhei Tou

Inventor： Kiyonari Kishikawa ,  Kouhei Tou

IPC: G01B11/14 ,  G01B5/28 ,  G01C22/00 ,  G01P3/486 ,  G01B11/275

CPC classification number: G01C22/00 ,  G01B11/275 ,  G01P3/486

Abstract: Measuring devices each include a rotating body arranged between a wheel and a wheel hub with rotation centers aligned with each other, and an optical detector fixed to a body frame. The rotating body is formed of a disk portion attached between the wheel and a mounting surface of the wheel hub, and a cylindrical portion extending from the disk portion to the body frame and encompassing an outer circumferential surface of the wheel hub. In a circumferential surface of the cylindrical portion, there are provided elongate holes as light-transmitting portions that transmit light therethrough. The optical detector includes a light-emitting element serving as a light-emitting portion and a light-receiving element serving as a light-receiving portion, which are fixed to the body frame by a mounting bracket.

Abstract translation: 测量装置各自包括设置在车轮和轮毂之间的旋转体，旋转中心彼此对准，光学检测器固定在车架上。 旋转体由安装在车轮与轮毂的安装面之间的圆盘部分和从圆盘部分延伸到主体框架并且包围轮毂的外圆周表面的圆柱形部分形成。 在圆柱形部分的圆周表面中，设置有透光部分的细长孔作为透光部分。 光检测器包括用作发光部分的发光元件和用作光接收部分的光接收元件，其通过安装支架固定到主体框架。

公开(公告)号：US6441608B2

公开(公告)日：2002-08-27

申请号：US80259801

申请日：2001-03-09

Applicant: BALLUFF INC

Inventor： BRUNSCH ARWED ,  EHLING ERNST ,  KURZ MARTIN ,  PETRIK JUERGEN

IPC: G01D5/48 ,  G01P3/486 ,  G01B7/14 ,  G01B7/30 ,  G01R33/02

CPC classification number: G01P3/486 ,  G01D5/485

Abstract: A modular waveguide assembly for use in a position sensor promotes efficient manufacturing, and can be tested and handled separately from the electronics module of the sensor. The waveguide assembly includes a channel having an opening extending along its length, a waveguide located within the channel, a conductor located within the channel, and a mode converter, such as a coil, located within the channel and positioned to generate an electrical signal from a signal traveling along the waveguide. A damping material can be inserted into the channel opening and around a portion of the waveguide such that the material adheres to the waveguide. Preferably, the damping material is at least initially partially flowable, and is then cured. A support sleeve for locating the waveguide can also be included in the assembly, and includes an elongated tubular member comprising an integral piece of flexible material and a plurality of constrictions spaced along its length for locating the waveguide and protecting it from shock and vibration. The assembly can also include a support element for connecting the coil to the electronics module of the sensor. The element can include terminals electrically connected to the coil ends and a bore for receiving the waveguide and conductor. In addition, the waveguide assembly can be pre-calibrated for use with any electronics module by connecting a gain unit, such as a resistor, to the assembly. The gain unit is selected according to the characteristics of the waveguide, such as its length and/or magnetostrictive sensitivity, and can be easily connected to the electronics module for control of the amplification circuitry in the module.

Abstract translation: 用于位置传感器的模块化波导组件可促进高效制造，并可与传感器的电子模块分开测试和处理。 波导组件包括具有沿其长度延伸的开口的通道，位于通道内的波导，位于通道内的导体，以及位于通道内的模式转换器，例如线圈，并定位成从通道中产生电信号 沿着波导传播的信号。 阻尼材料可以插入到通道开口中并围绕波导的一部分，使得材料粘附到波导上。 优选地，阻尼材料至少是初始部分可流动的，然后固化。 用于定位波导的支撑套筒也可以包括在组件中，并且包括细长的管状构件，其包括一体的柔性材料片和沿其长度间隔开的多个收缩部，用于定位波导并保护其免受冲击和振动。 组件还可以包括用于将线圈连接到传感器的电子模块的支撑元件。 元件可以包括电连接到线圈端的端子和用于接收波导和导体的孔。 此外，波导组件可以通过将增益单元（例如电阻器）连接到组件而被预校准用于与任何电子模块一起使用。 根据波导的特性，例如其长度和/或磁致伸缩灵敏度来选择增益单元，并且可以容易地连接到电子模块以控制模块中的放大电路。