18 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.

An X-ray imaging system is presented that uses multiple pulsed X-ray source pairs in motion to perform efficient and ultrafast 3D radiography. The sources move simultaneously in constant speed as a group on an arc trajectory. Each individual source also moves fast around its static position in a small distance, but one source moves in the opposite direction to another to cancel linear momentum. The trajectories can also be arranged horizontally at a ring structure. In X-ray source pairs, each source part moves in the opposite angular direction to another to cancel angular momentum. The individual X-ray sources are triggered by an external exposure control unit when they have a speed equal to the group speed but in the opposite linear or angular direction. This allows the sources to remain relatively stationary during activation. 3D data can be acquired in a wider field of view in a shorter time, and image analysis is real-time.

An incline wedge comprises: a first planar section configured to be fastened to a wall incline having a generally rectangular shape; a retaining section including a second section having a generally rectangular shape and connected by one of its edges to an edge of the first section, referred to as the first edge, by way of an angled section, the retaining section further comprising a clamping section folded back from one edge of the second section, referred to as the third edge, opposite the second edge, and against the second section so as to form a fastening clip, the angled section being designed to adjust the angular orientation between the first section and the second section by way of the deformation of the angled section.

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 workstation (1), comprising a base structure (2) to place said workstation (1) on a floor (3), at least one table structure (10, 10') supported by said base structure (2); wherein said at least one table structure (10, 10') comprises: an upright structure (30) having a lower end (31) secured to said base structure (2) and an opposite free upper end (32); a horizontal work surface (50) supported by said upright structure (30) completely cantilevered with respect to said upright structure (30) from a front side (35) of said upright structure (30), said work surface (50) being adjustable in height, wherein said upright structure (30) comprises a first vertical sliding column (61) and a second vertical sliding column (62), a first slider (63) sliding along said first vertical sliding column (61) and a second slider (64) sliding along said second vertical sliding column (62), each of said first slider (63) and said second slider (64) comprising a respective connection bracket (65, 66) configured to connect to and support said work surface (50); an adjustment mechanism (60) for adjusting the height (H) of said work surface (50) with respect to said floor (3) between a minimum height and a maximum height; wherein said adjustment mechanism (60) comprises: a rotating element (70) constrained to said upright structure (30) so as to freely rotate about a rotation axis (R-R), said rotating element (70) comprising a first pulley (71) having a varying radius according to a first spiral profile according to a first angular direction, a second pulley (72) having a varying radius according to a second spiral profile equal to the first spiral profile according to a second angular direction opposite to the first angular direction, a third pulley (73) having a constant diameter, said first pulley (71), said second pulley (72) and said third pulley (73) being coaxial with said rotation axis and integral with one another; a first pull cable (81) having a first end wound about said first pulley (71) and an opposite second end connected to said first slider (63), and a second pull cable (82) having a first end wound about said second pulley (72) and an opposite second end connected to said second slider (64); a third pull cable (83) having a first end wound on said third pulley (73) and an opposite second end secured to a balancing spring (93) connected to said upright structure (30) and configured to apply to said third pull cable (83) a balancing tension such as to apply to said rotating element (70) a torque balanced with an opposite torque resulting from the tensions applied by the first pull cable (81) and the second pull cable (82) to the rotating element (70).

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.

The present invention discloses a method for removing material from a balancing weight ring for high-speed dynamic balancing of a slender shaft and a method for correcting high-speed dynamic balancing. The method for removing material from the balancing weight ring is to arrange a balancing weight block at an angular position corresponding to a deflection value corresponding to a critical speed of the slender shaft. The length L of the balancing weight ring removed is: wherein m is the mass of the balancing weight block, R 块 R is the axial radius of the counterweight block. 环 is the mass radius of the balancing weight ring, k is the coefficient of the relationship between the length of the balancing weight ring and the mass of the balancing weight ring, k = 0.295; the torque of the balancing weight block is decomposed to the 45° direction of the center of the balancing weight ring claw, and the corresponding claws in the opposite direction of the balancing weight ring are removed, and the corresponding claw removal length L n For: L n = L × B × t, where B is the angle between the angular direction of the counterweight and the center of the balancing weight ring jaws at a 45° angle, t is the stock removal coefficient (t = 1.4), and n is the number of the jaws. The stock removal design of the present invention essentially ensures that the high-speed dynamic balancing deflection value of the slender shaft is within the acceptable range even with a single stock removal, resulting in a high success rate for one-time correction.

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 head-mounted display includes a varifocal actuation block and an optics block coupled to the varifocal actuation block. An anti-creep system located in the varifocal actuation block includes a plurality of anti-creep mechanisms that are configured to prevent bearing ball creep associated with bearing balls in the varifocal actuation block. The bearing balls are used to move a movable carriage that is coupled to a fixed carriage in the head-mounted display via the anti-creep mechanism. The anti-creep mechanisms prevent bearing ball creep associated with the bearing balls from occurring in the varifocal actuation block by limiting the movement in an angular direction of the bearing balls that are used to move the movable carriage in a first direction in the head-mounted display.

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.

The invention relates to the technical field of precision detection auxiliary equipment, in particular to an auxiliary tool for adjusting the three-coordinate angle of a fixed type measuring seat, which comprises a dial bottom plate, a support frame, a sliding block and a positioning block, one side of the dial bottom plate is provided with circular scale marks, the support frame is an L-shaped frame spliced by section bars, the sliding block is C-shaped and vertically slides up and down along the side surface of the support frame, and the positioning block is arranged on the side surface of the support frame. Three threaded holes A are formed in the top face of the sliding block, the positioning block is a Z-shaped right-angle bend, three through holes B are formed in the top face of one end of the positioning block and fixed to the threaded holes A through screws, a circular groove A is formed in the other end of the positioning block and matched with a groove B of the disc-shaped measuring needle, and a protruding pin is arranged on the back face of the positioning block and matched with a kidney-shaped hole of the disc-shaped measuring needle to position and limit the angular direction. The auxiliary tool for adjusting the angle of the probe is simple in structure, low in cost, convenient to use and capable of remarkably improving efficiency and precision, offline presetting, one-time clamping and rapid verification of the angle of the probe are achieved, and high-precision angle adjusting work is transferred to an external safe area from the interior of a CMM.

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.

The invention discloses a clamp tool for machining a workpiece with an arc structure, the clamp tool comprises a bottom plate, a left support, a right support and a tool setting device, the left support, the right support and the tool setting device are arranged on the bottom plate, and zero-displacement positioning of a clamp and a machine tool is achieved through the bottom plate, a mounting key and a machine tool T-shaped groove; the tool setting device gives a program zero point of the arc / angle hole; the left support completes complete positioning in the radial direction and the angular direction, the right support completes axial clamping, all locking force comes from a hand wheel-gear-spiral self-locking mechanism, and cutting force of a machine tool is borne by a support-bottom plate-machine tool closed ring. Clamping can be loosened by reversely rotating the hand wheel after machining is completed, and quick part replacement is achieved. According to the overall arrangement, accurate positioning of the positioning arc surface is achieved, the machining accuracy of the arc surface is improved, an angle rotary support of a combined clamp is replaced, clamping errors are avoided, and the device can be applied to machining of the positioning arc surface of the fuel injection pump body.