10 results about "Angular direction" patented technology

Disclosed herein is an angular optical component retention and removal system that reduces the amount of space needed to accommodate fiber optic cables and enables optical components to be quickly and easily inserted, retained, and removed from an optical communications system. The optical component retention and removal system may include a single or plural angular retention sections that retain optical components in an angular orientation through a faceplate. The system may further include an insertion / retention mechanism that enables an optical component to be inserted and removed with a single hand. With the system, fiber optic cables extend at an angle from the optical components, requiring less clearance space in front of the faceplate for provision of the fiber optic cables.

The application provides a kind of nine-axis IMU calibration method, system, electronic equipment and storage medium, method includes: nine-axis IMU is rotated around own xyz axis respectively, in different postures stationary for a predetermined length of time, IMU raw data is collected;Segment stationary state and motion state data;Average stationary state acceleration;Establish accelerometer error model, so that acceleration vector module length and gravity acceleration module length is consistent, calibrate the error parameter of accelerometer;The acceleration obtained after the initial acceleration of motion state is rotated with gyro angular velocity, compared with the end acceleration actually collected, calibrate the gyroscope through gyro error model;The change of the direction of the initial magnetometer data of motion state and the direction of the end magnetometer data is compared with the change of the angle direction measured by the gyroscope, and the magnetometer is calibrated through the magnetometer error model.The application does not depend on hardware equipment, can accurately calibrate the data of nine-axis IMU, has no scene limit, and is low in cost.

An axisymmetric Coriolis vibrating gyroscope includes a resonator, control elements and control circuitry. The control elements maintain vibration in the resonator by applying forces to the resonator and / or sense resonator vibrations around the resonator's axis of symmetry. The control circuitry positions the resonators' angular direction of vibration at initial angles on the perimeter of the resonator element and allows the vibration to precess for respective time periods. Respective angular directions of the vibration at a multiple sampling times during the time period are calculated based on control elements readings at the sampling times. Respective linear coefficients of a polynomial fitting the angular directions are determined. Fourier coefficients of an angle- dependent bias of the Coriolis vibrating gyroscope are determined from the respective linear coefficients, such that a bias of a measured angular rate of vibration may be corrected using the determined Fourier coefficients.

A method and system for of relative pose estimation between two or more sensors is disclosed. The system and method may include receiving a time frame, determine expected change in relative pose of at least two of the sensors, within the time frame and expected relations between angular directions of at least two of the sensors, calculating, by a processor, for each sensor a pose shift, calculating for each sensor the sensor's angular directions within the time frame, comparing relations between different sensors' angular directions, at each point in time, based on the expected relations between angular directions to determine a common direction of the two or more sensors, comparing common directions of the two or more sensors between different points in time based on the expected change in relative pose, and estimating the relative pose between the two or more sensors based on the comparison.

A dual axis MEMS mirror assembly is disclosed. The assembly has a mirror and two arms, each having a rotational degree of motion and a translational degree of freedom. Each arm is hingedly connected to opposite ends of the mirror. And a first pair of actuators connected to opposite ends of the first arm. And a second pair of actuators connected to opposite ends of the second arm. The mirror is rotated about a first axis by the first arm and the second arm when the first pair of actuators and the second pair of actuators are rotated in the same angular direction to translate the arms at the translational degree of freedom. The mirror is rotated about a second axis by the first arm and the second arm when the first pair of actuators and the second pair of actuators are rotated in opposite angular directions to move the arms at the rotational degree of motion.

The present invention relates to an unwinding assembly (1) for a system (900) adapted to perform operations on a roll (500). The unwinding assembly (1) includes: i) a spindle assembly (2) adapted to receive a roll of the roll (500) to be processed for synchronous rotation under the pulling action of the roll (500), the spindle assembly (2) extending relative to the unwinding axis (S-S) and including a spindle shaft (20); ii) an arm assembly (3) including an arm (30) and a roller (35), the arm extending radially relative to the unwinding axis (S-S), the roller being located at the end of the arm (30), wherein the roll (500) is unwound from the roll onto the roller (35); and a connecting assembly (4) adapted to connect the spindle shaft (20) to the arm (30) such that the arm (30) is movable in an angular direction with changes in the pulling action on the roll (500). The connecting assembly (4) includes a clutch device (49) that engages with the spindle shaft (20) and applies initial braking to the rotation of the spindle shaft (20) when the roller (35) is in the initial position, and applies a reduced braking effect compared to the initial braking effect as the angular position of the roller (35) changes.

A table leg (1) for supporting a work surface, said table leg having a length telescopically adjustable along a longitudinal direction (L), said table leg (1) comprising at least one extensible assembly comprising: A lower member (11); an intermediate element (12) slidable with respect to the lower element (11) along the longitudinal direction (L); an upper element (13) slidable with respect to the intermediate element (12) along the longitudinal direction (L); a first variable radius pulley (21) defining a first axis of rotation (P1) and having a variable radius according to a first spiral profile (31) according to a first angular direction about said first axis of rotation (P1), rotatably connected to the intermediate element (12) about said first axis of rotation (P1); a second variable-radius pulley (22) defining a second axis of rotation (P2) and having a variable radius according to a second spiral profile (32) according to a second angular direction about said second axis of rotation (P2), rotatably connected to the intermediate element (12) about said second axis of rotation (P2); synchronization means (40) connected to said first variable-radius pulley (21) and to said second variable-radius pulley (22) so as to rotate said first variable-radius pulley (21) and said second variable-radius pulley (22) synchronously with each other; a first cable (23) wound around said first variable radius pulley (21), and having a first end constrained to said first variable radius pulley (21) and a second end (27) constrained to said lower element (11); a second cable (24) wound around said second variable-radius pulley (22), and having a first end constrained to said second variable-radius pulley (22) and an opposite second end (28) constrained to said upper element (13), said second cable (24) being deflected by an idle pulley (25) rotatably engaged to said intermediate element (12); at least one balancing spring (51, 52) constrained to said intermediate element (12), to said first variable-radius pulley (21) and to said second variable-radius pulley (22) so as to apply to said first variable-radius pulley (21) and to said second variable-radius pulley (22) a pair of resisting forces which opposes an applied load from said first cable (23) and from said second cable (24) to said first variable-radius pulley (21) and to said second variable-radius pulley (22), respectively.

Devices for implanting inside an eye and for holding an intraocular lens (IOL) are presented; the device being operable to rotate the IOL, around an optical axis of the IOL, by absorbing energy from a remote energy source; the device comprises: a stator portion configured to be fixedly positioned inside the lens capsule of the eye; a rotor portion configured to be fixedly attached to the IOL; and a movement system operable to cause rotation of the rotor portion and the IOL, the movement system comprises a plurality of actuators and at least one interaction region associated with the plurality of actuators, the plurality of actuators comprise at least two actuators operable to cause the rotation of the rotor portion and the IOL in each of the clockwise and counterclockwise angular directions, the plurality of actuators and the at least one interaction region being aligned such that at each given moment in time, each actuator of the plurality of actuators is aligned differently with respect to the interaction region associated therewith, and is configured, when being activated by said remote energy source, to engage with the associated interaction region to cause the IOL to rotate with a different incremental rotation having either a different angular distance or a different angular direction; the device may comprise a protective shielding assembly that seals the moving parts from invading biological tissue.

A computer-implemented method for determining an angular direction of a target is provided. The method includes obtaining radar data from a radar system comprising an antenna with at least four subarrays. The method further includes using the radar data in a trained artificial intelligence (Al) model to determine the angular direction of the target.

A radial-direction clearance between a cylindrical inner circumferential surface 6 of an outer joint member 2 of a double offset-type constant velocity universal joint 1 and an outer circumferential surface of a cage 5 is set to 0.160-0.200 mm. As a result, an operation angle at which generation of an induced thrust starts is shifted to a high angle side, making it possible to reduce the induced thrust in a low operation angle region.