An angle detecting apparatus using a resolver disposed at a position where an external magnetic field is present on one side in an axial direction includes a rotor that is rotatable and made of a magnetic material, a magnetic permeability of the magnet material having an uniaxial anisotropy as an entirety, and a stator disposed to face the rotor, the stator including an exciting coil and a detection coil for detecting a magnetic flux generated by the exciting coil, the rotor being provided between the stator and the external magnetic field.

The invention relates to a sensor element for an inductive sensor used for a displacement or distance measurement by means of a magnetic field that varies according to the distance from the measurement object but that remains temporally constant. In said sensor, thin ferromagnetic material is integrated into a substrate. The invention also relates to a sensor comprising said sensor element and to a method for producing the sensor element.

A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.

A detector that is downsized by efficiently applying a high-period alternating magnetic field to a magnetic wire by use of a plurality of magnetic-field generation sources is provided. A detector 100 includes: a rotating body 110 having six magnetic-field generation sources 112; and a single power generation sensor 120. The six magnetic-field generation sources are disposed at equal distances from a rotational axis of the rotating body and at even intervals along a circumferential direction of the rotating body, orientations of magnetic fields of two of the magnetic-field generation sources adjacent to each other in the circumferential direction of the rotating body are different from each other, the power generation sensor includes: a magnetic wire 121 in which a large Barkhausen jump occurs; and a coil 122 wound around the magnetic wire, the magnetic wire is disposed on a straight line orthogonal to the rotational axis of the rotating body, and a central position 121a of the magnetic wire is on the rotational axis of the rotating body.

A detector that is downsized by efficiently applying a high-period alternating magnetic field to a magnetic wire by use of a plurality of magnetic-field generation sources is provided. A detector 400 detects motion of a moving body 410 by use of a power generation sensor 420. The power generation sensor includes a magnetic wire 421 and a coil 422, and the moving body includes a soft magnetic body portion 411 and a plurality of magnetic-field generation sources 412. The power generation sensor is disposed in a vicinity of a trajectory drawn by the magnetic-field generation sources by the motion of the moving body. A direction of motion of each of the magnetic-field generation sources is perpendicular to an axial direction of the magnetic wire when the magnetic-field generation source approaches the power generation sensor, a magnetization direction of the magnetic-field generation source is parallel to the axial direction of the magnetic wire or is parallel to a direction facing the magnetic wire, at least one part of a place from an axial-direction central portion to an axial-direction first end portion of the magnetic wire faces the magnetic-field generation source, and at least a part of a place from the at least one part to an axial-direction second end portion of the magnetic wire faces the soft magnetic body portion.

An angle detecting apparatus using a resolver disposed at a position where an external magnetic field is present on one side in an axial direction includes a rotor that is rotatable and made of a magnetic material, a magnetic permeability of the magnet material having an uniaxial anisotropy as an entirety, and a stator disposed to face the rotor, the stator including an exciting coil and a detection coil for detecting a magnetic flux generated by the exciting coil, the rotor being provided between the stator and the external magnetic field.

A sensor element (10) has a circuit board (11), which has at least one plane having a printed coil (12). The printed coil (12) has at least one first via (15), which is arranged outside an outermost coil winding (13). A shielding ring (17) is arranged between the first via (15) and the outermost coil winding (13). An inductive sensor has several such sensor elements (10).

The invention relates to the process and device for adjusting a rotary encoder, i.e. the absolute magnetic rotary encoder with Hall effect sensors which, when positioned in the form of a circle, detect the magnetic field of a diametrically polarised permanent magnet. The rotary encoder adjustment process features the following: the actuator magnet turns once or several times over the sensor circuit, whereby the time-dependant rotation angle is recorded/stored; time-dependant presupposed values of the rotation angle are calculated; these are then subtracted from the measured actual rotation angle values; by analysing the obtained difference, the electric parameter values for the sensor circuit are determined in such a manner as to make the newly measured difference based on new electric parameter values smaller than before the change; the electric parameter values for the sensor circuit are written into the sensor circuit.

A rotation detecting device includes a plurality of magnetic field generating portions; a magnetic member; a coil wound around the magnetic member; and a magnetic field introducing portion. The magnetic field introducing portion introduces a magnetic flux generated by the magnetic field generating portion to pass through the magnetic member when the magnetic field generating portion passes through a specific location.

The present disclosure provides a magnetic medium, a magnetic encoder, and a method for manufacturing a magnetic medium with high reliability that can obtain the sufficient signal output, while reducing the hysteresis error. The magnetic medium is relatively movable with respect to a magnetic sensor for detecting a magnetic field in a magnetosensitive face.