A position detector has a gap for providing a detection range. The gap has a gap width that is greater at the ends of the gap than at a center. Therefore, an amount of a spill magnetic flux and an amount of a direct magnetic flux respectively flowing through a position at and around an end portion of the gap are reduced when compared to a gap having a constant gap width along the direction of relative movement. Namely, the density of magnetic flux which passes through a Hall element that is positioned at each longitudinal end of the gap decreases. Therefore, at or around the ends of the gap, a rate of change of the magnetic flux density detected by the Hall element decreases and the linearity of an output signal from the Hall element is improved.

A scanning unit is arranged to scan a scale element that is rotatable about an axis relative to the scanning unit. The scanning unit includes a circuit board, which includes a substrate having a first surface, a second surface arranged opposite the first surface, and a circumferential third surface. A transducer system is arranged on the first surface, and electronic components are mounted on the second surface. The third surface includes a plurality of concave indentations. The scanning unit furthermore includes a metal frame having an uninterrupted first recess, which is radially restricted by an inner side of the metal frame, the inner side having a plurality of inwardly projecting elements. The inwardly projecting elements engage with the concave indentations such that the substrate is fixed in place in the metal frame under mechanical tension.

Disclosed herein is a flight control cable sensor for detecting actuation of a flight control cable of an aircraft. The flight control cable sensor comprises a draw wire encoder, comprising an extendable-retractable wire. The flight control cable sensor further comprises a first connector, co-movably fixed to the extendable-retractable wire, and a second connector, co-movably fixable to the flight control cable and configured to removably co-movably engage the first connector up to a predetermined pull-off force.

The magnetic encoder includes: a core member of annular shape having a press-fitting portion which bends and extends from an edge of a track formation surface, and to which a rotary shaft is press-fitted and fixed; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The two or more rows of magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle of rotation, and a sub track used for calculating a phase difference from the main track. The main track is located on a side more distant from the press-fitting portion than the sub track.

A rotary encoder includes a stator, a malfunction determination device, and a shaft having a bearing configuration internally connected to an axial bushing arranged in a housing. The bearing configuration provides for rotation of the shaft relative to the housing. A rotor is attached to the shaft. The malfunction determination device includes a detection device configured to determine whether a connection device is operably connected between a fixed portion of the encoder and the bushing, and to output the status of the connection to a control device. If there is no connection, the detection device determines a rotation of the bushing associated with a malfunction of the bearing configuration.

An encoder and a manufacturing method thereof, by which the encoder can be manufactured by a few processes at a low cost. The encoder has a rotating slit rotatable about an axis, a printed circuit board for measuring a rotational displacement of the rotating slit, a flange to which the printed circuit board is fixed after positioning the printed circuit board, a first connector fixed to the flange, and a second connector mounted on the printed circuit board and connected to the first connector. At least one of the first connector and the second connector is a floating connector having a structure configured to absorb a displacement at least in a direction perpendicular to the axis 12.

A torque-angle sensor is mounted on a steering column with a system casing and configured to detect a steering torque and angle of steering wheel steering of a vehicle. The torque-angle sensor includes a top cover, a torque sensing unit, an angle sensing unit, a PCB, a signal output terminal, and a sensor casing. The top cover includes a body, a first fitting part, and second fitting part. The first fitting part is a flange extending from the body towards the sensor casing, and fitted to the sensor casing. The second fitting part is a flange extending in a radial direction and/or axial direction of the body, and fitted to the system casing. In a radial direction of the body, a distance between the second fitting part and a center of the body is greater than a distance between the first fitting part and the center of the body.

A servo motor includes: a driving section including a rotor and stator; an input shaft configured such that a driving force of the driving section is transferred to the input shaft, wherein the input shaft is configured to be integral and rotated with the rotor; a reduction gear configured to output the driving force from the input shaft by reducing a rotational speed of the input shaft; an output shaft configured such that the driving force which has been transferred to the input shaft is transferred to the output shaft via the reduction gear; an input encoder disc attached to the input shaft; an output encoder disc attached to the output shaft; a circuit board including a predetermined circuit pattern; an input sensor mounted on the circuit board, wherein the input sensor is oriented toward the input encoder disc; and an output sensor mounted on the circuit board, wherein the output sensor is oriented toward the output encoder disc; wherein at least one of the input sensor or the output sensor is mounted on the circuit board via a spacer board, the spacer board being connected to the circuit board, and wherein an electronic component is mounted on the circuit board, the electronic component being different from the input sensor and output sensor.

A measuring instrument that reads a measure including a plurality of reading patterns arranged in a length direction of the measure, each reading pattern including a plurality of patterns arranged in a width direction of the measure, includes: a flattening member that increases a flatness of the measure; and a first reader that optically reads the plurality of patterns arranged in the width direction included in a single reading pattern from the measure in a state where the flatness is increased by the flattening member.

In a sensor arrangement for determining a rotation angle of a magnet about an axis of rotation, with a sensor for capturing a radial component and a tangential component of the measuring field of the magnet and for determining the rotation angle on the basis of an atan function, the sensor is mounted, at a radial distance from the axis of rotation, on a printed circuit board parallel to the axis of rotation and is offset by an axial distance. In a design method, an initial axial distance and radial distance are selected, the profile is determined, and the axial distance and/or the radial distance is/are iteratively optimized. A selector lever is coupled in terms of movement to the magnet of the sensor arrangement. The sensor arrangement is optimized and installed with the selector lever, and a compensation arrangement is adjusted.