72results about How to "Large tolerance range" patented technology

The invention relates to a large-tolerance docking acquisition device, in particular to a large-tolerance docking acquisition device focused on a space large mechanical arm and rendezvous and docking. The large-tolerance docking acquisition device is provided for solving the problems that the existing cone-pole-type acquisition mechanism cannot acquire a small-inertia unpowered target freely floating in the space, and the allogeneic isomorphic peripheral docking mechanism has a small tolerance range. The large-tolerance docking acquisition device comprises an acquisition mechanism and an interfacing mechanism; the acquisition mechanism is arranged on a wrist joint of an active satellite or a space mechanical arm, and the interfacing mechanism is mounted on an acquired satellite or acquired load. The large-tolerance docking acquisition device is used for acquiring the small-inertia unpowered target freely floating in the space or performing the allogeneic isomorphic peripheral docking.

The invention provides a light source packaging structure, and a positioning and coupling method thereof. The light source packaging structure comprises a sealing box cover (101), a C lens (102), a silicon based heat sink (103), a laser chip (104), an isolator assembly (106), and a silicon light chip (107). The laser chip (104), a collimating lens (105), and the isolator assembly (106) are sequentially disposed on the silicon based heat sink (103). The C lens (102) is aligned with the grating coupler (110) of the silicon light chip (107) in a fixed and coupled manner. The sealed box cover (101) is provided with an inclined inner wall used to reflect light emitted by the laser chip (104) to the C lens, and the lower surface of the C lens (102) is provided with a polishing surface matched with the incident angle of the reflected light. The side of the C lens (102) inclined toward the direction away from the silicon based heat sink (103), and the optical axis of the C lens (102) is consistent with the transmission direction of the light, and the main light is superposed with the optical axis. A coupling structure is compact, and position tolerance is large.

A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.

The invention relates to an implement method for high speed single bus communication. Data double-way transmission is performed on basis of an SDI signal line, the SDI signal line is connected with a host and a slave, the host sends signals through the SDI signal line, the slave is automatically adapted to receiving rate and starting and stopping of communication according to the received signals so that a self adaption one wire (SAOW) host-slave structure is formed, data information is transmitted by means of a command frame structure in terms of the data double-way transmission, and a command frame comprises a frame header, a slave address, a register address, data length, data and a frame tail. By means of the implement method for high speed single bus communication, one-bus double-way communication can be achieved, two communication parties are not required to use fixed baud rate, the baud rate can be changed whenever possible, and the method can be applied to occasions with unstable working frequency.

The invention discloses a large big-tolerance passive mildly-capturing spatial end effector based on tendon sheath drive, relates to a large mechanical arm spatial end effector, and particularly relates to a large big-tolerance passive mildly-capturing spatial end effector based on tendon sheath drive. The end effector solves the problems that the existing docking capturing mechanism has small capturing tolerance and the mechanical arm can not conduct soft capturing. The end effector comprises a capturing device and a capturing interface device, wherein the capturing device is installed at the tail end of the mechanical arm wrist of a large spacecraft; the capturing interface device is installed on a payload bay; and after the three wire ropes of the capturing link capture the capturing cone of the capturing interface device, the dragging link pulls the whole capturing link to move downwards and finish capturing. The end effector is applied to the aerospace field.

A toothbrush having a handle, a head with oral care elements and a neck connecting the head with the handle is described. The toothbrush has a base structure of the handle, and the neck and the head are formed by a hard plastic component. Said basic structure of the handle is covered, at least in part, by a first soft plastic component. Said head including a second soft plastic component and said neck including a through-opening, wherein at least one section of a boundary wall of the opening is provided with an elastic muscle.

The invention provides a module connector considering tolerance design, mainly solving the problem that a module can not be mounted and connected smoothly caused by big dislocation between a plug and a socket. In the invention, the plug is fixed on a sliding plate contacting with the shell of the module in a sliding manner, the plug is separated with the shell of the module in the horizontal direction, and tolerance coordination between a guide pin and a pin bush is used to connect the plug on the module and the socket on a parent plate smoothly. The invention has the advantages of larger tolerance scope, simple and reliable structure, easy and fast operation, and the like. Wear of connecting parts in the mounting or dismounting process can be avoided.

The invention provides a laser ranging auxiliary optical image combined adjustment method and system. According to the method and the system, homonymy matching points of all images serve as a first type of image point observation values, a back projection point of a laser footprint point on a certain image and matching points of the back projection point on other images serve as a second type of image point observation values, the obtained back projection points of the laser footprint point on all images serves a third type of image point observation values, mean square roots of the distance from cumulative points to a nuclear line serve as direct observation values, and a corresponding error equation is listed; the laser footprint points are regarded as low-precision control points, and acorresponding coordinate observation equation is listed; a GPS or POS error observation equation is combined to form a laser ranging auxiliary optical image combined adjustment model, and precise outer orientation elements of the images are solved by using a least squares adjustment criterion. The requirements of high-precision earth observation positioning under a condition of no direct ground control can be fully met.

A USB interface controller chip comprises a pair of signal ports for being connecting with a pair of USB signals and a power node for being connecting with a supply voltage characterized in that the controller chip is built-in with a pull-up resistor connected between the power node and one of the pair of signal ports, and the pull-up resistor has a resistance consistent to USB standard but has a tolerance larger than that defined by USB specification.

The invention discloses a shoulder (1) for retaining a railway rail fastening clip (3), which comprises two interconnected spaced-apart walls (10), between which a portion of the clip (3) to be retained is held in use, and clip-engaging means (11), supported by the walls, for engaging a portion of the clip (3) to be retained, does not have any feature or surface which engages the surface of that clip portion which faces downwardly when the clip is in use. As selected, when the shoulder (1) is located at an effective work direction, the shoulder (1) is used abutting with the rails, at this point, any portion of the contact regions 11OA and 11OB of the shoulder (1) can be seen from upwards to downwards. As selected, when the shoulder (1) is in use, the contact regions 11OA and 11OB of the shoulder (1) both has a same apart horizontal distance from the edge of the foot, wherein, the horizontal distance is measured by a railway rail axis perpendicular to the foot plane.

A vegetation cutter includes a tubular casing and a power source is connected to a first end of the casing so as to drive a drive cable which extends through the casing. A cutting member is connected to the drive cable and located on a second end of the casing. A positioning tube is axially located in the casing and has an annular sleeve through which the drive cable extends. The sleeve has two rib portions tangentially connected thereto and the two rib portions are parallel to each other. Each rib portion has two ribs on two ends thereof and the two ribs contact an inner periphery of the casing. The ribs are flexible and position the positioning tube in the casing, and absorb vibration when in use.

The present invention provides a peripheral exposure device irradiated by laser beam and UV-ray, and a method thereof which are adapted to the condition that the identification mark forms at any position of the peripheral region. The device comprises a dado 2 for keeping the substrate W, a photo device 4 for capturing an image data by shooting the locating mark set for aligning the predefined position on substrate to predefined standard position on dado, a movable convey mechanism 3 which can move the dado, a laser beam unit 5 which can emit laser beam on the moving path of the movable convey mechanism, a uv-ray irradiating unit 9 for irradiating the light containing uv-ray to the peripheral region through the irradiating opening, and a control device 20 for controlling the convey mechanism, which can achieve the adjusting of the substrate based on the image data captured by photo device and can make the exposure of identification mark using laser beam and the exposure of peripheral region using light containing UV-ray happening at the same time.

The invention provides a frame rubber structure and a manufacturing method of a display panel. The frame glue structure comprises a plurality of rubber strips and a plurality of filling colloids, wherein the plurality of rubber strips are adjacent end to end; a gap is formed between any two adjacent rubber strips; the plurality of filling colloids are positioned in the gaps; and the plurality of rubber strips and the plurality of filling colloids form a closed loop.

Disclosed is a displacement sensor to measure displacement of a variety of devices depending on a slight deformation of the devices, based on moment of force acting on a diaphragm when the diaphragm undergoes displacement. The displacement sensor includes a sensing body and a signal processing unit. The sensing body includes a diaphragm provided at a lower surface thereof, to which a strain gauge is attached, and an input bar orthogonally fixed at the center of an upper surface thereof, to which displacement is transmitted. The signal processing unit generates an electrical signal based on an output value of the strain gauge corresponding to strain of the diaphragm caused by moment of the input bar.