199 results about "Separation angle" patented technology

A beamforming method employs a plurality of microphones arranged in an array with respect to a reference point. The method includes acquiring microphone signals from the microphones and combining the microphone signals (x1 . . . xM) to obtain Virtual Microphones, combining the microphone signals to obtain a pair of directional Virtual Microphones having respective signals determining respective patterns of radiation with a same origin corresponding to the reference point and rotated at different pattern direction angles, defining a separation angle between them, obtaining a sum radiation signal of a sum Virtual Microphone with a sum radiation pattern, associating a respective weight to the signals of the pair of directional Virtual Microphones, obtaining respective weighted signals of radiation and summing the weighted signals, computing respective weights as a function of a determined pattern direction angle of the pattern of radiation of the pair of directional Virtual Microphones and of the separation angle.

In an apparatus for separating a film from a substrate, a separating roller separates a film attached to the substrate and a guide roller adjusts a separation angle of the film. The guide roller is disposed between the separating roller and the film and the position of the guide roller relative to the separating roller is adjusted to adjust the separation angle of the film.

A system for transmitting data to a plurality of satellites is provided. A first satellite in an orbital slot has an associated receive antenna, and is configured to receive signals in a first range of frequencies. A second satellite in the orbital slot has an associated receive antenna. The second satellite is separated from the first satellite by at least a first separation angle, and is configured to receive signals in the first range of frequencies. A first earth uplink antenna, located at a first earth location, is capable of transmitting a first uplink beam at the receive antenna of the first satellite. A second earth uplink antenna, collocated at the first earth location, is capable of transmitting a second uplink beam at the receive antenna of the second satellite. The first uplink beam includes first signals at the first range of frequencies, and the second uplink beam includes second signals at the first range of frequencies. Further, the first uplink beam is substantially attenuated beyond the first separation angle in the direction of the second satellite, and the second uplink beam is substantially attenuated beyond the first separation angle in the direction of the first satellite.

The invention discloses an automatic key frame extraction method of the human sport data. On the data representation, it uses the separation angle of the human limbs bones and central bones as the sports characterization, and tokens the three-dimensional human sport data. Then, it makes the possible existing ''border'' posture to be a candidate key frame set when determining the movement according to the sport track of the angle between bones. Finally, it selects the candidate key frame to get the final key frame set by layered curve reduced algorithm. Meanwhile, the invention also proposed an adaptive mistake parameter adjustment method to meet the requirements of different compression rate. The method has good effects of key frame extraction and compression to human sport data, and guarantees the consistency in the similar sport key frame set to some extent.

A system and method for high numeric aperture imaging systems includes a splitter, a defocusing system, and a combiner. The splitter reflects a portion of collected light and transmits another portion of the collected light. The defocusing system is configured to modify optical power of either the transmitted portion or reflected portion of the collected light. The combiner is oriented with respect to a mechanical angle. The combiner recombines portions of the transmitted portion and the reflected portion such that the transmitted portion and reflected portion are subsequently transmitted being separated by an optical separation angle based upon the mechanical angle of orientation of the combiner. Various other implementations are used to maintain focus with regards to the imaging systems involved.

The invention discloses a multiple-head lamp focusing device for surgery operation luminous device, which comprises the following parts: connecting rack, lever rack, connecting rod and lever, wherein the distance between two racks and lightness can be adjusted along with the separation angle of light axle and focusing device axle, which focuses the light on the axle center; the multiple-head lamp can be assembled on multiple circumstances at the same axle; one connecting rack and lever rack load one or more connecting rods and levers.

The invention discloses a wind tunnel separation simulation experiment system, belongs to the technical field of wind tunnel experiments, and relates to a simulation experiment system suitable for measuring the separation process of an external carried object model in the wind tunnel environment. According to the simulation experiment system, an explosive bolt is matched with a mechanical concentric sliding rail device, acting force is exerted through a feeding assistant device to complete separation between an external carried object and a master, and the separation process is measured through a high-speed visual device. By means of the wind tunnel separation simulation experiment system, the explosive bolt is matched with the mechanical concentric sliding rail device, it is guaranteed that a wind tunnel separation body model separation system is safe and reliable, the high bearing capacity and the rapid triggering capacity are achieved, the feeding assistant device is introduced to exert the adjustable feeding force to the model, the separation initial angle, the separation angle, the separation speed and the separation angular speed of the wind tunnel separation model are controlled, high consistency of the separation model separation process and the true machine separation process is guaranteed, and the whole separation process parameter measurement requirement is met due to the fact that the binocular high-speed visual device has the advantages of being high in accuracy, high in frequency response and the like.

A fixed float valve plate, comprising orifice valve and valve block, the valve block is a quadrangle similar to diamond with macro-diagonal line as bilateral symmetry, the separation angle of the long line points to the overflow dam, the length of the valve block long line a is 10-80 mm, the width of the valve block b is 8-60 mm, the width of the valve leg c is 4-20 mm, the length of the valve block d is 15-90 mm, the height of the valve leg h is 3-8 mm, the length of the valve pore I is 15-100 mm, the valve leg connects the valve block with the valve plate. The fixed float valve plate in this invention can push the liquid to the overflow dam to decrease the liquid level drop height, and eliminate the convolution and back-mix-flow effectively, thus increase the valve plate efficiency. The side edge of broken line similar to diamond is longer than that of rectangular straight line and circular arcuate path, which makes the outlet of air passage be larger, and increase the pass amount effectively and the contacting area of the gas-liquid mass transfer, which can not only increase the transferring efficiency but the pore speed of the gas decreases under the same treating amount, thus decreasing the valve plate resistance force.

This invention relates to an abrasive wheel normal tracing method in complex curve grind process, which is used in curve fine grinding field. The method comprises the following steps: a) adding a spinnig axis of bench sliding seat to the digital control shaft, which makes the work-piece outline alterable relative to the abrasive wheel axial cord; b) setting up mathematical model of normal tracing, computing the separation angle theta i between the outline normal line in grinding point and the radical admission shaft; c) making the bench sliding seat deflecting a certain angle with C axis, and making the abrasive wheel axial cord coincidence with the normal line of grinding point according to the theta i of each grinding point. The invention can remain the cutting status of abrasive wheel, and the abrasive wheel is forced evenly, which can avoid the interference from abrasive wheel and work-piece.

A method for milling long fibre reinforced composite plastics having at least one unidirectional top layer using a rotating milling tool, wherein work piece and tool are moved in an advancing movement parallel to the work piece cutting face relative to each other, and wherein

• • there is an edge fibre separation angle on the work piece of 0°≦θ_edge≦90°, and
  • the blade of the tool mills the component edge in synchronization.

The invention discloses an eccentric ice maker and a refrigerator, relating to the technical field of refrigerating plants and aiming at solving the problems that a conventional ice maker is poor in overflowing and splashing prevention effect and the like. The eccentric ice maker comprises a fixed frame, ice-making cells, an ice removing motor as well as an overflow prevention frame, wherein the ice-making cells are arranged inside the fixed frame in an overturn manner; the ice removing motor is used for driving the ice-making cells to turn over; the ice-making cells are arranged inside the overflow prevention frame; when ice is removed, the overflow prevention frame can turn over together with the ice-making cells. The invention further discloses the refrigerator with the eccentric ice maker. Because the ice-making cells of the eccentric ice maker disclosed by the invention are arranged inside the overflow prevention frame, when the ice is removed, the overflow prevention frame can turn over together with the ice-making cells, the overflow prevention frame and the ice-making cells do not move relatively at most time, but a small separation angle is formed at one end, far away from the ice removing motor, of the ice-making cells only when the ice-making cells reach an ice removing limit level, so that the friction phenomenon caused by relative movement is avoided, and good sealing capability is achieved.

The invention provides a method for separating vibration signals of planetary gears of a main reducer of a helicopter, belonging to vibration signal processing for a helicopter. The method includes the steps: obtaining position parameters of an acceleration sensor and position parameters of planetary gears; determining a meshing timing sequence of a separation angle matrix and the planetary gears;acquiring original vibration signals of a plurality of vibration sensors, and according to a cycle period of a planet carrier, segmenting and resampling the plurality of original vibration signals toobtain a plurality of planet carrier periodic signals; performing windowing on the plurality of planet carrier periodic signals to obtain vibration signals of the plurality of planetary gear teeth; and splicing the vibration signals to obtain a planetary gear reconstruction vibration signal. The method for separating vibration signals of planetary gears of a main reducer of a helicopter can extract the signals of the single planetary gear from the vibration signals of the complex planetary transmission system, and can separate the gear signals of each planetary gear, so as to lay the foundation for fault diagnosis of the planetary gears.

The invention discloses a vibrating massage, which comprises the following parts: eye lid, massage board, vibrating device and elastic bulk, wherein the bottom and top of elastic bulk connect eye lid bulk and massage board; the vibrating device is set on the eye lid bulk, which contains motor, deviation bulk, rack and vibrating bulk; the deviation bulk is fixed on the motor shaft, which possesses deviation shaft with motor axial line; the rack possesses deviation hole and at least one slope wall with deviation shaft mating deviation shaft hole loosingly; the vibrating bulk contains vibrating seat and at least two vibrating columns; the slope wall resists the vibrating seat with each vibrating column piercing the lid to correspond the massage board; the separation angle of acute angle is set among shaft line of deviation shaft, sloping wall and shaft line of motor shaft.

A method for allocating radio resources for setting up satellite communications in a first communication system comprising a constellation of non-GSO satellites and a first set of terminals, the method comprises the following steps, for each terminal of the first set: determining a distinct separation angle threshold to be observed with respect to a constellation of geostationary satellites, a separation angle being defined as the smallest topocentric angle by which a given non-GSO satellite and any geostationary satellite of the geostationary arc are seen from a given terminal of the first set, authorising the terminal to set up a communication link with a non-GSO satellite if the separation angle associated with the link is greater than or equal to the separation angle threshold.

The invention discloses a multi-cutter NC boring lathe used for boring, comprising a plurality of support components, a self-aligning bearing component, a master drive component, a main shaft, a NC platform, a fixed sleeve and taper-boring mechanisms, wherein at least two taper-boring mechanisms are evenly distributed on the fixed sleeve; each taper-boring mechanism comprises a guide way, a stepper motor, a ball screw, a cutter holder and a cutting tool, wherein the ball screw comprises a driving screw and a ball base, the guide way axially fixed on the fixed sleeve along the main shaft and the separation angle between the guide way and the main shaft is an acute angle, the driving screw is pivoted on the guide way and is connected with the stepper motor, the stepper motor is arranged on the guide way and is electrically connected with the NC platform, the guide way is provided with a groove, the ball base is blocked in the groove of the guide way and is meshed with the driving screw, the cutter holder is fixed on the ball base, and the cutting tool is fixed on the cutter holder.

The invention discloses a liquid injection polishing method, which is characterized by the following: accelerating the abrading particle through high-pressure pump; spraying the abrading particle through nozzle on the workpiece surface to generate collision; polishing the workpiece surface; adapting the normal line of manufacturing domain center as axle to make nozzle and workpiece rotate relatively; letting the separation angle of nozzle pipe axle and tangent plane of manufacturing region center range from 30 to 90 deg and d as nozzle internal diameter. When the separation angle is 90 deg, the distance between intersection point of pipe axial elongation line and workpiece surface and manufacturing region center is from 0.5d to 1d; when the separation angle is less than 90 deg, the distance between intersection point of pipe axial elongation line and workpiece surface and manufacturing region center is from 0.2d to 1d. The invention can obtain ideal removal function to realize digital control polish, which is fit for optical manufacturing.

The invention discloses a single-freedom straight-line displacement spatial six-connecting rod mechanism, which comprises the following parts: fixed base, front crank, front swaying rod, end component, back swaying rod and back crank, wherein the end component is composed of middle flat board and left and right suspending ears on two ends, two planes of left and right ears are on the same plane but not paralleling, which parallels two intersecting lines with middle flat board, the axle of three rotary spoke A, B and C of mobile chain ABC parallel mutually, which are perpendicular to the surface determined by connecting rod AB and BC, the axle of three rotary spoke F, E and D of mobile chain FED parallel mutually, which are perpendicular to the surface determined by connecting rod FE and ED, the separation angle of surface of AB and BC and surface of FE and ED equals the separation angle of left and right suspending ears on the surface.

Disclosed is a method of processing two cylindrical inner ball tracks with one time of grinding, belonging to the technical field of grind machine processing. The steps of the method includes that a location barrel is mounted on a work piece, the cross section of the location barrel is flatly and smoothly grinded by using a working face of an abrasion wheel, two supporting points of a electromagnetism centerless fixture are adjusted to ensure the two supporting points of the electromagnetism centerless fixture to support the inner circles and outer diameters of two work pieces, the separation angle of the two supporting points is 110 degrees to 150 degrees, the electric voltage of a magnetic coil of the electromagnetism centerless fixture is adjusted, enabling the two work pieces and the location barrel to keep synchronous rotating, two grooves are trimmed on the working face of the abrasion wheel, the width and depth of the two grooves are inosculated with the inner circles and outer diameters of the two work pieces well installed, a work piece shaft and the abrasion wheel are started, and then the two work pieces are simultaneously ground and processed by using the abrasion wheel. The invention has beneficial effects that two work pieces can be processed simultaneously by using the method, guaranteeing the processing quality and improving processing efficiency.