A rotary actuator including a motor, gears, and a sensor connected to an output shaft. Electronics is communicatively connected to monitor sensor position and output a simulated optical encoder response. An actuator has a base; a motor coupled to the base; a transmission communicatively connected to the motor to transmit rotary power from the motor; an output shaft communicatively connected to the transmission, the output shaft being adapted or configured to be connected to an article or apparatus to be actuated; and a magnetic, non-contact sensor communicatively connected to the output shaft whereby the sensor measures output shaft position with calibration

A display device comprising a flexible display panel, a panel roller, a frame, a first foldable link comprising one end pivotably coupled to the frame and another end pivotably coupled to a lower side of the flexible display panel, a second foldable link having one end pivotably coupled to the frame and the other end pivotably coupled adjacent to the lower side of the flexible display panel, wherein the second foldable link is located opposite to the first foldable link, a motor, a first gear box and comprising at least one gear configured to cause the first foldable link to pivot, a second gear and comprising at least one gear configured to pivot with respect to the second foldable link, and a driving shaft configured to transmit power to at least one gear of the first gear box or to the at least one gear of the second gear box.

A display device comprising a flexible display panel, a panel roller, a frame, a first foldable link comprising one end pivotably coupled to the frame and another end pivotably coupled to a lower side of the flexible display panel, a second foldable link having one end pivotably coupled to the frame and the other end pivotably coupled adjacent to the lower side of the flexible display panel, wherein the second foldable link is located opposite to the first foldable link, a motor, a first gear box and comprising at least one gear configured to cause the first foldable link to pivot, a second gear and comprising at least one gear configured to pivot with respect to the second foldable link, and a driving shaft configured to transmit power to at least one gear of the first gear box or to the at least one gear of the second gear box.

An encoder includes: a magnet rotatably supported; a control board including a magnetic field sensor that detects a magnetic field produced by the magnet and outputs a signal, and an arithmetic unit that detects rotation of the magnet on the basis of the output of the magnetic field sensor; a magnetic shielding cover made of a soft magnetic material; an encoder bracket used to fix the magnetic shielding cover; a protective cover fixed with being sandwiched between the magnetic shielding cover and the encoder bracket to cover the magnet and the control board to prevent entry of foreign substances; and a sealing member sandwiched between the protective cover and the encoder bracket. The magnetic shielding cover covers the magnet, the control board, and the protective cover, and the sealing member is compressed between the encoder bracket and the protective cover.

An encoder includes: a magnet rotatably supported; a control board including a magnetic field sensor that detects a magnetic field produced by the magnet and outputs a signal, and an arithmetic unit that detects rotation of the magnet on the basis of the output of the magnetic field sensor; a magnetic shielding cover made of a soft magnetic material; an encoder bracket used to fix the magnetic shielding cover; a protective cover fixed with being sandwiched between the magnetic shielding cover and the encoder bracket to cover the magnet and the control board to prevent entry of foreign substances; and a sealing member sandwiched between the protective cover and the encoder bracket. The magnetic shielding cover covers the magnet, the control board, and the protective cover, and the sealing member is compressed between the encoder bracket and the protective cover.

A mounting structure of a rotating member of an encoder for detecting a phase angle of a magnet provided on a rotor of a motor includes: a rotating shaft configured to be rotated by driving of the motor; the rotating member on which a phase angle detection pattern configured to detect the phase angle is formed; and a boss attached to the rotating member and configured to mount the rotating member to an end of the rotating shaft. In this configuration, the end of the rotating shaft and the boss are provided with a first positioning structure configured to position a mounting position of the boss relative to the rotating shaft about the axis of the rotating shaft.

A motor includes a stationary unit and a rotation unit. The rotation unit includes a rotor hub, an annular body, and a clamp. The rotor hub is mounted with a first magnet opposite to the stator. The annular body is supported on an outer circumferential portion of the rotor hub. The clamp is directly or indirectly fixed to the rotor hub farther radially inside than the annular body, and presses the annular body to an axially lower side. The rotor hub includes a flange that expands radially outside from at least a portion excluding an upper end portion. On a surface of the clamp, a pattern to be detected to detect rotation of the rotation unit positioned in a circumferential direction with the central axis as the center is provided. The annular body is sandwiched between the flange and the clamp in an axial direction.

Disclosed is a rotary table device which accurately detects the position of a table rotating in relation to a bed over the entire circumference and whose assembly is facilitated by covering an armature assembly with an insulating layer for insulation between the bed and the table. In the rotary table device, a ring member having a ring scale extending over the entire circumference of the ring member is disposed around a lower part of the table having a field magnet extending over the entire circumference of the table. A sensor for reading the ring scale is disposed on the bed on which armature coils of the armature assembly are arranged in the circumferential direction to face the field magnet.

Disclosed is a rotary table device which accurately detects the position of a table rotating in relation to a bed over the entire circumference and whose assembly is facilitated by covering an armature assembly with an insulating layer for insulation between the bed and the table. In the rotary table device, a ring member having a ring scale extending over the entire circumference of the ring member is disposed around a lower part of the table having a field magnet extending over the entire circumference of the table. A sensor for reading the ring scale is disposed on the bed on which armature coils of the armature assembly are arranged in the circumferential direction to face the field magnet.

A control apparatus includes a drive instruction value generator configured to generate a first drive instruction value that is greater than or equal to 0, which corresponds to torque in a first rotation direction, for driving a first motor that applies the torque in the first rotation direction to a shaft, and a second drive instruction value that is less than or equal to 0, which corresponds to torque in a second rotation direction, for driving a second motor, which is different from the first motor, that applies the torque in the second rotation direction, which is an opposite direction to the first rotation direction, to the shaft.