An inductive position sensor, having a first stator element that comprises a first excitation coil, to which a periodic alternating voltage is applied, and also comprises a first receiving system, wherein the signal from the first excitation coil couples inductively into the first receiving system. A first rotor element influence the strength of the inductive coupling between the first excitation coil and the first receiving system as a function of its angular position relative to the first stator element. A metal element and the first rotor element are arranged on a shaft in a rotationally fixed manner. An evaluation circuit determines the angular position of the first rotor element relative to the first stator element from the voltage signals induced in the first receiving system. The first rotor element and the metal element are each designed as a conductor loop with a periodic geometry.

An improved inductive sensor determines angular positions for rotating objects, such as rotors of synchronous electric motors. The inductive sensor includes an arcuate transmitter coil, one or more receiver coils, and a conductive target configured to rotate with the rotating object, relative to the transmitter coil and the receiver coil(s). The conductive target includes a plurality of lobes and individual of the lobes is split into multiple lobe portions.

Magnetic field sensors can sense speed of movement and direction of movement of a ferromagnetic object. Particular arrangements of magnetic field sensing elements within the magnetic field sensor can automatically cancel offset variations in the magnetic field sensing elements.

A sensor device for ascertaining at least one rotation characteristic of a rotating element is provided. The sensor device includes at least one trigger wheel which is able to be connected to the rotating element. The rotating element and the trigger wheel have an axis of rotation. The sensor device includes at least one coil array. The coil array encompasses at least one excitation coil and at least one receiver coil. The coil array is situated on at least one circuit carrier. The trigger wheel as a trigger wheel profile. The sensor device is designed to ascertain a change in an inductive coupling between the excitation coil and the receiver coil as a function of a position of the trigger wheel. The circuit carrier is situated coaxially with the axis of rotation of the trigger wheel. The circuit carrier surrounds the trigger wheel at least partially in a circular manner.

An apparatus for sensing a rotating body includes a unit to be detected, including a first pattern portion having at least one first pattern and a second pattern portion having at least one second pattern, and configured to rotate around a rotating shaft, a sensor module comprising a first sensor disposed opposite to the first pattern portion and a second sensor disposed opposite to the second pattern portion, and a rotation information calculator configured to calculate a difference value by differentiating output signals of the first sensor and the second sensor, and to compare comparison values, determined according to a target sensing angle and a size of the first pattern and the second pattern, with the difference value.

An improved inductive sensor determines angular positions for rotating objects, such as rotors of synchronous electric motors. The inductive sensor includes an arcuate transmitter coil, one or more receiver coils, and a conductive target configured to rotate with the rotating object, relative to the transmitter coil and the receiver coil(s). The conductive target includes a plurality of lobes and individual of the lobes is split into multiple lobe portions.

The present disclosure provides position detector for an electric machine. The detector uses one or more proximity sensors, such as eddy current sensors, to detect features on the rotor of an electric machine. The detectable feature may be a spiral groove, which has a unique position at any given point around the circumference of the rotor. As the rotor is typically steel, the proximity sensors produce different output values depending on the degree to which they are aligned with the groove. As such, given that the groove has a unique position at any given location, the output of the proximity sensors is also unique for any given position. This enables the position of the rotor with respect to the sensors to be determined.

Disclosed is a camshaft toothed wheel, forming a target for a camshaft position sensor, the toothed wheel including a circular body including two opposite main faces, and at least six teeth distributed over the circumference of the circular body, each tooth including two edges, one corresponding to a rising edge and the other to a falling edge, as a function of a direction of rotation of the wheel, the toothed wheel having asymmetry of revolution. The six teeth are shaped so that the toothed wheel includes, considering the same main face and the same direction of rotation of the wheel: four edges of the same first rising or falling type spaced 90° apart, respectively; and six edges of the same second falling or rising type, respectively, spaced 60° apart, respectively.

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.

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.