公开(公告)号：US20240351484A1

公开(公告)日：2024-10-24

申请号：US18638118

申请日：2024-04-17

Applicant: DAEWONSANUP CO., LTD.

Inventor： Hyuk KIM ,  Sang Yong KOO ,  Joo Hyun CHO

IPC: B60N2/02 ,  B60N2/07 ,  B60N2/14 ,  G01D5/04 ,  G01D18/00

CPC classification number: B60N2/0272 ,  B60N2/02246 ,  B60N2/07 ,  B60N2/146 ,  G01D5/04 ,  G01D18/001 ,  G01D2205/20 ,  G01D2205/776

Abstract: The present disclosure relates to a rotation angle sensing system and method of swivel core that enables recognition of an accurate standard position of a rotor, may include a rotation sensing device installed on a stator of the swivel core and sensing rotation state of a rotor of the swivel core; and an identifier formed on the rotor to generate a sensing signal of the rotation sensing device, wherein the standard position of the rotor can be calibrated or initialized by only one rotation sensing device, thereby decreasing the number of sensors to be installed, reducing installation cost or manufacturing cost and accurately sense a standard position by forming a hill part as an identifier on the inner surface of the rotor.

公开(公告)号：US12104928B2

公开(公告)日：2024-10-01

申请号：US17593765

申请日：2020-03-24

Applicant: MINEBEA MITSUMI Inc.

Inventor： Katsunori Saito ,  Yasuo Osada ,  Hiroki Negishi ,  Norikazu Sato

IPC: G01D5/14 ,  G01D5/04

CPC classification number: G01D5/145 ,  G01D5/04 ,  G01D2205/26 ,  G01D2205/28

Abstract: An absolute encoder includes a spindle gear fixed to a motor shaft, a permanent magnet provided on the spindle gear, and a first driven gear having a center axis perpendicular to a center axis of a worm gear portion, and engaging the worm gear portion. The absolute encoder includes a second driving gear provided coaxially with the first driven gear and rotating according to a rotation of the first driven gear, and a second driven gear having a center axis perpendicular to the center axis of the first driven gear, and engaging the second driven gear. The spindle gear includes a magnet holder which is fit onto a tip end of the motor shaft, coaxially with the motor shaft, and a resin gear portion provided with the worm gear portion on an outer side in a radial direction.

公开(公告)号：US11981041B2

公开(公告)日：2024-05-14

申请号：US17523860

申请日：2021-11-10

Applicant: Joseph David Barnes

Inventor： Joseph David Barnes

IPC: B26B27/00 ,  G01D5/04 ,  H02G1/12 ,  G08B7/06

CPC classification number: B26B27/00 ,  G01D5/04 ,  H02G1/1217 ,  G08B7/06 ,  H02G1/1297

Abstract: A cable measurement system and cutter apparatus has a housing, a display device, a material conduit, a rotary encoder, a cutting tool handle a resistance member a movable cutting blade and a blade aperture. The cutter system is able to measure the length of a cable that passes through the material conduit which traverses through the housing. The display device is mounted onto the housing and is coupled to the rotary encoder which measures the length of cable passed through the housing. The encoder is mounted next to the conduit so that the cable is measured, and the length is displayed on the display device. one end of the cutting tool handle is rotatably mounted to the housing and the movable blade is mounted onto the opposite end of the handle. The blade is able to cut the cable by moving through the blade aperture which traverses through the conduit.

公开(公告)号：US11292518B2

公开(公告)日：2022-04-05

申请号：US16105011

申请日：2018-08-20

Applicant: Kelsey-Hayes Company

Inventor： Richard A. Neuhaus ,  Vidya Sagar R. Mote

IPC: B62D15/02 ,  B62D5/04 ,  G01D5/04 ,  G01B7/30

Abstract: An absolute steering angle sensor includes a single main gear having first gear teeth with a first pitch, second gear teeth with a second pitch, wherein the first and second gear pitches are different. A first magnet gear is driven by the first gear teeth, wherein the first magnet gear has a first gear profile and a first diameter. A second magnet gear is driven by the second gear teeth, wherein the second magnet gear has a second gear profile and a second diameter. The first and second gear profiles are different, and the first and second diameters are different. A first magnet rotates with the first magnet gear and emits a first magnetic field, and a second magnet rotates with the second magnet gear and emits a second magnetic field. A sensor assembly measures strengths of the first and second magnetic fields and calculates an absolute steering angle.

公开(公告)号：US11085513B2

公开(公告)日：2021-08-10

申请号：US16030989

申请日：2018-07-10

Applicant: Ratier-Figeac SAS

Inventor： Bruno Seminel ,  Adil Sardi ,  Frédéric Vermande

IPC: F16H25/20 ,  G01D5/04 ,  B64C13/24 ,  B64C13/30

Abstract: The system of the present disclosure provides two or more sensors located on two parallel transmission or kinematic paths having different ratios with respect to the actuator position. Each sensor provides a different position measurement output and the difference between the sensor outputs provides a reduced indication of the position of the actuator/moved component. Integrating sensors in the reduction path avoids the need for the reduction gear mechanism.

公开(公告)号：US10928221B2

公开(公告)日：2021-02-23

申请号：US15899446

申请日：2018-02-20

Applicant: Infineon Technologies AG

Inventor： Udo Ausserlechner

IPC: G01D5/14 ,  G01B7/30 ,  G01D5/04

Abstract: The present disclosure relates to a magnetic sensor arrangement comprising a first rotatable body having a first magnetic quadrupole attached thereto, a first magnetic sensor configured to generate, in response to a rotational angular position of the first magnetic quadrupole, a first sensor signal indicative of a first rotational angle of the first rotatable body, a second rotatable body having a second magnetic quadrupole attached thereto, and a second magnetic sensor configured to generate, in response to a rotational angular position of the second magnetic quadrupole, a second sensor signal indicative of a second rotational angle of the second rotatable body.

公开(公告)号：US10900811B2

公开(公告)日：2021-01-26

申请号：US15654992

申请日：2017-07-20

Applicant: MELEXIS TECHNOLOGIES SA

Inventor： Takumi Yoshiya

IPC: G01D5/20 ,  G01D5/12 ,  G01D7/08 ,  G01D5/14 ,  G01D5/04

Abstract: Provided is a displacement detection device which can uniquely determine displacement of a detection target from output values based on detection as well as make a displacement range of the detection target wider than a displacement range detectable by a sensor.
A displacement detection device includes a magnet which is displaced in a displacement direction Ds, is rod-shaped and has a form in which a longitudinal direction and the displacement direction Ds form a predetermined angle θ, and a sensor IC which detects a magnetic flux density of a magnetic field formed by the magnet in an x direction and a z direction orthogonal to the displacement direction Ds and outputs a signal proportional to the magnetic field detected.

公开(公告)号：US10704931B2

公开(公告)日：2020-07-07

申请号：US16152347

申请日：2018-10-04

Applicant: PixArt Imaging Inc.

Inventor： Chung-Ting Yang ,  Yen-Min Chang ,  Chia-Fu Ke

IPC: G01D5/04 ,  G01D5/347 ,  G06F3/03 ,  G01D5/30 ,  G06F3/0362

Abstract: An optical detecting device includes a multi-axis instruction outputting mechanism and an optical detecting module, and shift of the multi-axis instruction outputting mechanism is determined accordingly. An actuating component of the multi-axis instruction outputting mechanism is moved in reciprocation at a first operating direction to output an instruction. The optical detecting module is detachably disposed to the actuating component. An interval between the optical detecting module and the actuating component is varied according to a relative movement between the optical detecting module and the actuating component at a second operating direction, and the actuating component can be shifted between different gears. The optical detecting module determines the interval and gearshift according to variation of a reflecting signal actuated by the actuating component, and utilizes the reflecting signal to acquire a movement of a feature point detachably disposed on the actuating component along the first operating direction to interpret the instruction.

公开(公告)号：US10571303B2

公开(公告)日：2020-02-25

申请号：US15944048

申请日：2018-04-03

Applicant: Melexis Technologies SA

Inventor： Javier Bilbao De Mendizabal

IPC: G01D5/244 ,  G01D5/14 ,  B62D15/02 ,  G01D5/04 ,  G01B7/00 ,  G01B7/30 ,  G01P3/487

Abstract: An integrated circuit for error detection comprises an input for receiving two signals, in which a first signal is representative of a physical quantity in a first range and a second signal is representative of the physical quantity in a second range. The first range and second range are different ranges that overlap. The circuit comprises a processor configured to detect an inconsistency between the two signals by taking said first and second range into account, in which this inconsistency is indicative of an error.

公开(公告)号：US10571302B2

公开(公告)日：2020-02-25

申请号：US15943983

申请日：2018-04-03

Applicant: Melexis Technologies SA

Inventor： Peter Vandersteegen

IPC: G01D5/244 ,  G01D5/14 ,  B62D15/02 ,  G01D5/04 ,  G01B7/00 ,  G01B7/30 ,  G01P3/487

Abstract: A rotary position sensor comprises a magnetic sensor for generating two independent signals indicative of at least two different order magnetic fields, and a magnetic assembly forming a first magnetic field component having a first order at the location of the magnetic sensor, in which the first magnetic field component is rotatable relative to the magnetic sensor by receiving a first angle. The magnetic assembly is also adapted for forming a second magnetic field component having a second order, different from the first order, at the location of the magnetic sensor, in which the second magnetic field component is rotatable relative to the magnetic sensor and the first magnetic assembly by receiving a second angle. The position sensor comprises a processor for combining the two independent signals to produce a unique system state representative of the first and second angle.