An eddy-current angular displacement sensor includes a stator including a coil array including N coils, wherein N is an integer greater than 1, an exciting circuit connected to the coil array, a measuring circuit connected to the coil array, and a rotor.

A scale includes a substrate, a scale pattern that has conductivity and is provided on a first main face of the substrate, and a conductive film that is provided on a second main face of the substrate, a base material of the conductive film being a resin material, a conductive material being added to the base material.

A scanning element includes a circuit board and electronic components. The circuit board includes first and second shielding layers, a first detector unit is arranged in first and second layers, and a second detector unit is arranged in third and fourth layers. A first straight line passes through the first detector unit and the first shielding layer but not through the second shielding layer. Starting from the first detector unit, the first shielding layer is located beyond the center plane. A second straight line passes through the second detector unit and the second shielding layer but not through the first shielding layer. Starting from the second detector unit, the second shielding layer is located beyond the center plane. The first and second straight lines are orthogonal to the center plane.

An inductive position detection configuration for stylus position measurement in a scanning probe comprises a stylus position detection portion arranged along a central axis in the probe. The stylus position detection portion includes a field generating coil configuration and top and bottom axial and rotary sensing coil configurations. The field generating coil configuration generates a changing magnetic flux, and coil signals indicate conductive disruptor element and/or stylus positions. A field generating coil coupling and crosstalk reducing configuration couples signal processing and control circuitry to the field generating coil configuration to provide a coil drive signal, and is configured to reduce crosstalk that would otherwise occur if the field generating coil configuration were directly connected to the signal processing and control circuitry without the field generating coil coupling and crosstalk reducing configuration.

An angular position sensor comprising two planar excitation coils forming a substantially circular interior area and two planar sensing coils positioned within a minor sector of the substantially circular interior area. Each of the two planar sensing coils comprises a clockwise winding portion and a counter-clockwise winding portion. The angular position sensor further comprises a substantially circular rotatable inductive coupling element positioned in overlying relation to the two planar sensing coils and separated from the two planar sensing coils by an airgap, wherein the substantially circular rotatable inductive coupling element comprises three, substantially evenly space, sector apertures.

The invention relates to a novel type of electric inductance arrangement for a series of applications in the field of distance measurement, sensor-based detection of objects, and construction of induction machines. The novelty consists in the type of inductance arrangement of the receiver or transmitter coil, said arrangement being designed in the form of a ladder rung arrangement, wherein the ladder spars short-circuit the rungs. The sum of all the short-circuit currents is an indicator of what is occurring in the surroundings of the arrangement. This could be changing magnetic fields caused by transmitter objects or additional ladder-rung systems acting as transmitters. Multiple such sensors and transmitters can be designed in the ladder-rung form, said sensors and transmitters being connected in parallel or in series according to the application under certain circumstances and if necessary assuming the excitation function by moving a conductor through which a direct current is flowing or by applying alternating currents. The aforementioned inductance arrangement results positively in that the coils can all have a completely crossover-free design and are therefore substantially simpler to technically implement for very different applications in electrical engineering. The applicability ranges from short-range distance measuring devices and long-range object location to light detection and efficient induction machines with large or also very small constructions.

A sensor device arranged at a stator measures a rotational position of an encoder member arranged at a rotor. The encoder member is rotatable about an axis of rotation. The sensor device includes a sender member arranged at the stator and emitting a magnetic field and a receiving member receiving the magnetic field. The receiving member has a plurality of adjacent sensor areas arranged along a circumferential direction about the axis of rotation in a plane opposing the encoder member.

A device includes a substrate with an excitation coil configured to generate a magnetic field in reaction to an input signal fed in, and with a pickup coil arrangement configured to generate an output signal in reaction to a magnetic field. The excitation coil includes one or more turns arranged around the pickup coil arrangement in a ring-shaped manner in a plan view of the substrate plane. The device further includes a chip package comprising at least one electrical connection connected to the pickup coil arrangement by means of a signal-carrying conductor. In accordance with the concept described herein, the chip package is positioned on the substrate in such a way that the signal-carrying conductor and the one or more turns of the excitation coil do not overlap in a plan view of the substrate plane.

A position detector as one electronic part is configured by clamping and holding a stacking body obtained by stacking a display comprising a resin frame and an LCD part and a position detecting sensor by a back bezel and a front bezel. By using an auxiliary member, an upper surface frame part of the front bezel is kept from covering a part, in a loop coil, that is disposed outside an effective display area and relates to detection of an indicated position at an end part of the effective display area.

A rotational angle sensor includes a stator element and a rotor element. The stator element has a transmitting coil and at least two receiving coils that are arranged within the transmitting coil and on a circuit board. The rotor element is mounted for rotation with respect to the stator element about an axis of rotation. The rotor element is configured to inductively couple the transmitting coil to the at least two receiving coils in such a way that the inductive coupling is dependent on a rotational angle between the stator element and the rotor element and the transmitting coil induces at least two angle-dependent alternating voltages in the at least two receiving coils. The rotor element and the at least two receiving coils are configured in such a way that an alternating voltage, the amplitude of which is sinusoidally dependent on the rotational angle, is induced in the receiving coils.