Patent classifications
G01D5/2452
ELONGATE BODY COMPRISING A CURSOR BAND FOR A VEHICLE SYSTEM OF A VEHICLE
An elongate body for a vehicle system of a vehicle, the body having at least one cursor band for an inductive linear displacement sensor, the at least one cursor band extending in the direction of a longitudinal extent of the body, the at least one cursor band being designed with a plurality of electrically conductive cursor pads in order to inductively couple at least one excitation coil to at least one sensor coil of a stator of the linear displacement sensor and being designed with non-coupling sections which are electrically less conductive or non-conductive with respect to the cursor pads, the cursor pads being spaced apart from one another in the direction of the longitudinal extent in each case by the non-coupling sections, and the cursor pads of the cursor band being formed on the body.
SENSOR DEVICE AND METHOD FOR DETERMINING A RELATIVE ANGULAR POSITION BETWEEN SHAFT HALVES OF A ROTARY SHAFT
The present disclosure describes a sensor device and a method for determining a relative angular position between a first shaft half and a second shaft half of a rotary shaft, including: a first magnetic structure and a second magnetic structure having spatially different magnetic periodicities, wherein the first magnetic structure is mounted on the first shaft half and the second magnetic structure is mounted on the second shaft half such that respective magnetic fields generated by the first and second magnetic structures superpose, at least four sensors mounted stationary with respect to a rotary movement of the rotary shaft such that the superposed magnetic field is detectable by each of the stationary sensors, and an electronic evaluation circuit configured to receive measurement values corresponding to the superposed magnetic field from each of the sensors to determine the relative angular position from the received measurement values.
INDUCTIVE LINEAR POSITION SENSOR
An inductive linear position sensor, wherein the linear position sensor comprises a stator having at least one excitation coil and at least one sensor receiver coil, at least one movable element which is linearly movable relative to the stator, and an evaluation circuit.
CONVEYANCE DEVICE AND SLIDER POSITION DETECTING DEVICE
A conveyance device includes a slider, a conveyance unit, a magnetic scale for detecting a position of the slider, and a magnetic sensor for detecting magnetism of the magnetic scale. The magnetic scale includes a plurality of tracks arranged in parallel, and magnetization start positions and magnetization end positions of some tracks of the plurality of tracks are shifted to a side opposite to an end portion of the track from magnetization start positions and magnetization end positions of the other tracks.
Apparatus for sensing rotor location and motor comprising apparatus
The present invention provides an apparatus for sensing rotor location, the apparatus comprising: a central shaft; a magnet coupled to the central shaft; a sensor portion is disposed correspond to the magnet; wherein the sensor portion comprising a substrate, a first group including a first Hall sensor and a third Hall sensor disposed on the substrate, and a second group including a second Hall sensor and a fourth Hall sensor, the first Hall sensor and the third Hall sensor are arranged to overlap in a radial direction about the central shaft and the second Hall sensor and the fourth Hall sensor are arranged to overlap in a radial direction about the central shaft.
Magnetic Encoder Calibration
A method for calibrating a position measurement system includes receiving measurement data from the position measurement system and determining that the measurement data includes periodic distortion data. The position measurement system includes a nonius track and a master track. The method also includes modifying the measurement data by decomposing the periodic distortion data into periodic components and removing the periodic components from the measurement data.
Robot system, robot, robot control device, robot control method, and encoder
A robot system includes: a robot having a main shaft gear attached to a rotary shaft of a drive unit, a first countershaft gear meshing with the main shaft gear, a second countershaft gear meshing with the main shaft gear, and a third countershaft gear meshing with the main shaft gear; and a main shaft phase output unit outputting a phase of the main shaft gear as a first main shaft phase. A phase of the main shaft gear is derived as a second main shaft phase, based on a phase of the first countershaft gear, a phase of the second countershaft gear, and a phase of the third countershaft gear. Processing to stop the drive unit is performed when the first main shaft phase and the second main shaft phase do not coincide with each other.
Inductive Angle Sensor
An inductive angle sensor includes an exciter coil, an oscillator circuit, a plurality of receiver coils, an evaluation circuit evaluating a plurality of signals induced in the receiver coils, and a coupling element that is movable and influences a strength of an inductive coupling between the exciter coil and the receiver coils. The coupling element has a first encoder element and a second encoder element. The coupling element has a third encoder element formed as a conducting extension with an asymmetric geometry. The asymmetric geometry influences the strength of the inductive coupling between the exciter coil and the receiver coils only in a part of a plurality of periodically repeating loop structures of the receiver coils.
POSITION-SENSING CIRCUIT, POSITION-SENSING SYSTEM, MAGNET MEMBER, POSITION-SENSING METHOD, AND PROGRAM
A position-sensing circuit includes a processing circuit. A magnet member includes a first track having a plurality of first magnetic poles and a second track having a plurality of second magnetic poles. A magnetic pole pitch between the plurality of first magnetic poles in a sensing direction is different from a magnetic pole pitch between the plurality of second magnetic poles in the sensing direction. A magnetic sensor includes a first sensor part configured to sense magnetism produced at the first track and a second sensor part configured to sense magnetism produced at the second track. The processing circuit is configured to determine, based on information on a phase of an output of the first sensor part and a phase of an output of the second sensor part, a position of the magnetic sensor with respect to the magnet member.
Rotary encoder
A rotary encoder that is capable of securing a sufficient synthesis tolerance while achieving miniaturization is provided. The rotary encoder 1 includes a rotor 3, a stator 4, and a calculating unit 5 for calculating the rotation angle. The rotor 3 has a first rotor pattern 31 with a plurality of unit patterns 310 arranged along the measurement direction around the rotating shaft 2, and a second rotor pattern 32 with fewer unit patterns 320 than the plurality of unit patterns 310 in the first rotor pattern 310 arranged along the measurement direction. The number of the plurality of unit patterns 310 of the first rotor pattern 31 and the number of the plurality of unit patterns 320 of the second rotor pattern 32 are provided such that the maximum common divisor therebetween is two or more. The calculating unit calculates the rotation angle of the rotor 3 based on the detection signals from the first rotor pattern 31 and the second rotor pattern 32.