G01D5/2053

Coupler element shapes for inductive position sensors
11519752 · 2022-12-06 · ·

In accordance with one embodiment of the present disclosure, an inductive position sensor assembly is provided. The inductive sensor assembly includes a sensor and a coupler element. The sensor includes a transmitter coil having an inner diameter and an outer diameter and a receiver coil positioned within the outer diameter of the transmitter coil. The coupler element has a geometric continuous curve shape. The coupler element is positioned within the outer diameter of the transmitter coil such that a maximum diameter of the geometric continuous curve shape is the outer diameter of the transmitter coil. When the coupler element is moved, the geometric continuous curve shape of the coupler element modify an inductive coupling between the transmitter coil and the receiver coil.

POSITION ENCODER WITH FUSION OF DIFFERENT SENSOR TYPES
20220373360 · 2022-11-24 ·

An opto-magnetic rotary position encoder includes a polarization optical encoder and a magnetic encoder, both configured for on-axis placement and operation with respect to a rotational axis of a rotating component. A polarization sensor digital control block and a magnetic sensor digital control block are configured and operative to combine polarizer channel position data and magnetic channel position data in a manner providing for one or more of (1) redundancy, (2) calibration, (3) monitoring performance of one channel in relation to the other channel, or (4) compensation or correction of one channel based on the other channel.

Sensor device for measuring the rotational position of an element

A sensor device for measuring a rotational position of an element that is rotatable about an axis of rotation includes a pair of sensing elements. The sensing elements are shifted with respect to each other by at least 120 degrees about the axis of rotation.

Scanning element and inductive position measuring device having a scanning element

A scanning element includes a multilayer circuit board having a first detector unit arranged in a first layer and in a second layer. In addition, the circuit board has a second detector unit, which is arranged in a third layer and in a fourth layer, and a first shielding layer, which is arranged in a fifth layer. The circuit board moreover has a geometrical center plane, which is located between the detector units, and furthermore has vias, which are arranged at an offset from one another in a direction parallel to the center plane. The fifth layer is structured such that that a web that is electrically insulated with respect to this first shielding layer is arranged next to the first shielding layer, the web being electrically contacted with the vias and electrically connecting the vias to one another.

Flux coupling target

A target configured to be used with a position sensor for sensing a position of the target is described. The target includes at least one elongated conductive loop structure for allowing eddy currents to flow therein and configured to affect a magnetic field received from the position sensor in a preferred direction along the at least one elongated conductive loop structure.

SENSOR APPARATUS FOR DETECTING THE ROTATION ANGLE POSITION OF A ROTATABLE SHAFT AND STEERING ARRANGEMENT OF A VEHICLE
20220355863 · 2022-11-10 ·

A sensor apparatus (01) is for determining a rotation angle position of a rotatable shaft (02). The sensor apparatus (01) comprises a main gear wheel (03), which is coaxially coupled to the rotatable shaft (02), and a secondary gear wheel (04), which is arranged so as to be rotatably coupled on the main gear wheel (03). The sensor apparatus (01) furthermore comprises two targets (06, 07), each of which is arranged on a lateral face of the main gear wheel (03) or of the secondary gear wheel (04), and two rotation angle sensors (08, 09), which are arranged in the immediate vicinity of the main gear wheel (03) and the secondary gear wheel (04) on a circuit board (05). The angles of the main gear wheel (03) and of the secondary gear wheel (04) are determined and forwarded as an angular signal to an evaluating unit (10) arranged on the circuit board.

INDUCTIVE POSITION SENSOR

An inductive position sensor including a stator element having an exciter coil to which a periodic alternating voltage is applied and having a receiving system, wherein the signal of the exciter coil is inductively coupled into the receiving system. A rotor element influences the strength of the inductive coupling between the exciter coil and the receiving system according to its angular position relative to the stator element. An evaluation circuit determines the angular position of the rotor element relative to the stator element from the voltage signals induced in the receiving system. The position sensor has an unambiguous range E, in which the angular position can be unambiguously determined. The receiving system extends over a first angular range, wherein the first angular range is N.sub.1=n*E where n≥1, and the exciter coil extends over a second angular range, wherein the second angular range is N.sub.2=m*E where m≥2.

Hybrid position sensor
11573074 · 2023-02-07 · ·

A hybrid position sensor for determining the position of a hybrid target includes a main transducer for obtaining a first signal indicative for a position of the hybrid target within a first range and with a first resolution using a first or second technology; a support transducer for obtaining a second signal indicative for the position of the hybrid target within a second range and with a second resolution using the second technology if the main transducer is using the first technology and vice versa, wherein the first range is smaller than the second and the first resolution is higher than the second, and wherein the first technology is magnet based and the second technology is an inductive technology; a combiner for combining the obtained first signal and second signal to determine the position of the hybrid target.

Vehicle pedal including redundant dual output inductive position sensor with reduced coupling coil circuits
11614765 · 2023-03-28 · ·

A vehicle pedal assembly comprising a pedal housing, a rotatable pedal, and an inductive position sensor. The inductive position sensor includes an inductive sensor target rotatable in response to the rotation of the pedal and a substrate positioned opposite the inductive sensor target. First and second redundant inductive transmit and receiver coil circuits are defined and located on different sections of the substrate in a relationship with the respective receiver coil circuits of the first and second transmit and receiver coil circuits at least partially surrounded by the respective transmit coil circuits of the first and second transmit and receiver coil circuits for reducing the coupling factor between the first and second transmit and receiver coil circuits.

Device and method for determining an angular position of inductive position sensor
11614344 · 2023-03-28 · ·

A method of determining an angular position of a target of an inductive angular position sensor system, relative to a substrate, includes the steps of: receiving, demodulating and digitizing signals, and reducing a DC-offset of the digital signals, and determining an angular position. The step of reducing the DC-offset involves: i) initializing a DC-correction value; ii) subtracting the DC-correction value to obtain DC-shifted signals; iii) clipping the DC-shifted-signals to obtain clipped signals; iv) calculating a first sum by summing values of the clipped signal over one period, and v) calculating a second sum by summing absolute values of the clipped signal over said period; vi) adding to each DC correction value K times the first sum divided by the second sum, where K is a predefined constant.