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52results about How to "Reduce interference effects" patented technology

Reflection-type lithography aligning device based on moire fringe

The invention discloses a reflection-type lithography aligning device based on moire fringe, adopting a reflection-type optical system which is suitable for approaching a contact-type lithography alignment. The device comprises an aligning lighting system, a half-reflecting semi-permeable mirror, a mask plate, a mask grating mark, a silicon chip grating mark, a silicon chip, a displacement workpiece bench, a fringe receiving system and a computer, wherein the aligning lighting system aims at parallel lights to be incident on the half-reflecting semi-permeable mirror at an angle of 45 degrees, the half-reflecting semi-permeable mirror diffracts the grating mark which aims at the parallel lights and reflects onto the mask plate, the diffraction lights continues spreading the grating mark which are incident onto the silicon chip and diffracts to overlap the mask grating mark onto the silicon chip grating mark, the reflected light continues spreading through the half-reflecting semi-permeable mirror, a fringe imaging system receives the aligning fringe images, the displacement relationship of the mask plate and the silicon chip is obtained by using the computer to analyze the images, and the displacement relationship is timely fed back to the displacement workpiece bench to realize the alignment of the direction x and the direction y.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Rough tire transferring system

The invention discloses a rough tire transferring system. The system comprises a transferring rail, the transferring rail is arranged in a suspended manner through a supporting frame, a transferring trolley is arranged on the transferring rail, a rough tire grabbing device is arranged on the transferring trolley, a supporting cross beam arranged in the arranging direction of the transferring rail is arranged at the position, away from the ground by a certain height, below the transferring rail, and rough tire trays are arranged on the supporting cross beam at intervals; and when the transferring system is practically applied, rough tires formed through a forming machine are grabbed by the rough tire grabbing device and are transferred to a vulcanization station through the transferring trolley, and a rail seeking trolley does not need to be used; when the system is used, the interference influence on ground operation can be effectively reduced; when the rough tire vulcanization speed is smaller than the rough tire forming speed or the rough tires need to be laid up for a certain time according to technological requirements, the rough tires are temporarily stored in the rough tire trays below the transferring rail, the system occupied area can be effectively reduced, and production efficiency is improved; and the system is simple and reasonable in structure and low in construction cost and has the good practicability.
Owner:HAINING RUICHUANG MACHINERY TECH

Swash plate, pusher drum and machine for the tobacco processing industry

InactiveCN101744364AGood running and swinging conditionRelieve pressureCigarette manufactureEngineeringSwash
The present invention relates to a swash plate, a pusher drum and a machine for the tobacco processing industry, wherein, the swash plates (34,45) used for conveying rollers (31,41) of tobacco processing industry are suitable for being configured on the side surface of one pusher drums (31,41) for a purpose that a rod-shaped product (43) of tobacco processing industry rotates simultaneously with the grooves (32,42,52) used for accommodating the product (43), so as to move the product (43) along an axial direction in the grooves (32,42,52), wherein the swash plates are provided with through holes (36,54) on one circumference. The radius of the circumference is consistent with a radial distance between the grooves (32,42,52) and a rotation axis of the conveying rollers (31,41). The through holes and the grooves (32,42,52) of the pushing drums (31,41) are arranged in one line at the assembling state of swash plates (34,45). Additionally the invention relates to the pusher drums (31,41) with the swash plate according to the invention, and a machine which is provided with the pusher drum according to the invention for the tobacco processing industry. The swash plates (34,45) are further improved so that at least one through hole (58) is expanded along a circumferential direction on the periphery, and is partially configured not overlapped with the grooves (32,42,52) and/or the other through hole (55,60) is provided on the circumference at least, wherein the through hole is not overlapped with the grooves (32,42,52).
Owner:HAUNI MASCHINENBAU AG

Linkage adjustable precise piezoelectric stick-slip driving device and control method thereof

The invention discloses a linkage adjustable precise piezoelectric stick-slip driving device and a control method thereof, so as to solve the technical problems of low positioning precision, poor output response and the like of the existing piezoelectric stick-slip driving device. The linkage adjustable precise piezoelectric stick-slip driving device is composed of a platform base unit, a drivingunit, a guide rail unit and an upper cover. The driving unit is installed on the platform base unit, the guide rail unit is installed on the platform base unit, and the upper cover is installed on theguide rail unit and makes contact with the driving unit. A single-arm driving type bidirectional stator is adopted, comprehensive regulation and control over the friction force in the driving processof the piezoelectric stick-slip driving device can be achieved, and straight beam flexible hinges are arranged at the two ends of the end beam so that the response speed of the driving unit can be increased; under the excitation of the double excitation electric signal groups, the interference influence on the movement of the upper cover during the driving of the driving unit is reduced, the displacement back-off is reduced, the bidirectional mechanical output performance of the driving device is further improved, and the driving device can be widely applied to the technical field of micro-nano precision driving and positioning.
Owner:CHANGCHUN UNIV OF TECH

Single-light-source dual-polarization optical fiber gyroscope

The invention provides a single-light-source dual-polarization optical fiber gyroscope. The single-light-source dual-polarization optical fiber gyroscope comprises a light source, a polarizer, a depolarizer, a coupler, a first polarized light path, a second polarized light path and a polarization maintaining optical fiber ring, wherein the light source, the polarizer, the depolarizer and the coupler are sequentially connected in series, the output end of the coupler is connected with the input ends of the first polarized light path and the second polarized light path which are connected in parallel, and the output ends of the first polarized light path and the second polarized light path are connected with the polarization maintaining optical fiber ring; and a time delay module is connected in series between the output end of the coupler and the input end of the second polarized light path. The polarizer and the depolarizer are firstly used for realizing power equalization of the double polarized light, the time delay module enables the double polarized light to have a phase difference, and then reverse modulation is carried out on the double polarized light, so that polarization cross coupling noise in the optical fiber can be effectively reduced, and the optical fiber gyroscope has very important significance for improving the wandering and zero-bias performance of the optical fiber gyroscope.
Owner:PEKING UNIV

Power line inspection robot and motion control method thereof

The invention discloses a power line inspection robot which comprises a first connecting plate, a second connecting plate and a third connecting plate. The first connecting plate and the second connecting plate are connected through a first connecting shaft, and the second connecting plate and the third connecting plate are also connected through a first connecting shaft. The free end of the first connecting plate and the free end of the third connecting plate are connected with a base plate through first spring bodies. The first connecting plate and the third connecting plate are connected with first hydraulic cylinders through second spring bodies correspondingly. A first change gear is coupled to the top of a piston of each first hydraulic cylinder. The second connecting plate is connected with a second hydraulic cylinder through a third spring body. A second change gear is coupled to the top of a piston of the second hydraulic cylinder. Two second connecting shafts are arranged on the base plate. Each second connecting shaft is in coupling connection with a third hydraulic cylinder and a fourth hydraulic cylinder. The invention further discloses a motion control method of the power line inspection robot. Defects in the prior art can be overcome, and the shaking amplitude when the inspection robot climbs a barrier is reduced.
Owner:SHENZHEN POWER SUPPLY BUREAU +1

Suction mechanism for laser welding

The invention discloses a suction mechanism for laser welding. The suction mechanism comprises a suction mounting seat and a suction nozzle arranged on the suction mounting seat; the suction mountingseat comprises a vertical mounting plate, a sliding mounting plate and a suction nozzle mounting seat; the vertical mounting plate extends in the vertical direction; the sliding mounting plate is connected with the side surface of the vertical plate mounting in a sliding manner, and the sliding mounting plate can slide back and forth, relative to the vertical mounting plate, in the vertical direction so as to be changed between a natural state and a buffer state; the suction nozzle mounting seat is fixedly arranged on the sliding mounting plate; and a suction nozzle mounting cantilever is fixedly connected to the side face of the suction nozzle mounting seat, the suction nozzle mounting cantilever horizontally extends outwards from the side face of the suction nozzle mounting seat, and thesuction nozzle is detachably arranged on the suction nozzle mounting cantilever. According to the suction mechanism, related parts are few, and the structure is compact, so that the mounting space, in the radial direction and the longitudinal direction, of the whole structure is kept small enough, and the accuracy of sucking a workpiece to be welded is favorably improved.
Owner:SUZHOU RS TECH

Laser welding suction nozzle and laser welding gun

The invention discloses a laser welding suction nozzle and a laser welding gun. The laser welding suction nozzle comprises an installation section, a suspension section and an extension section, wherein one end, at the installation section, of the suspension section integrally joins the installation section and extends downward from the installation section; the extension section is mounted to thebottom of the suspension section; the outer periphery of the extension section at least partially protrudes out of the outer side of the suspension section to form an outer convex part; a light-transmitting hole penetrating through the upper surface and the lower surface of the outer convex part is formed in the outer convex part; and the light-transmitting hole is open at the outer side of the outer convex part to separate the outer convex part into a suction block and a pressing block. According to the laser welding suction nozzle and the laser welding gun, the light-transmitting hole is arranged on the suction nozzle without additionally reserving a laser avoiding station on the side of the suction nozzle, so that a transverse installation space of the suction nozzle is kept small enough, a laser beam is injected over a workpiece via the light-transmitting hole, the energy dissipation of the laser beam caused by deliberately prolonging a laser light path is reduced, and the weldingefficiency and the welding quality are improved.
Owner:SUZHOU RS TECH

electronic device with antenna

An electronic device with an antenna provided by the invention comprises a first metal housing having a first side edge; a second metal housing having a second side edge; a first rotating shaft connected between the first side edge and the second side edge; a second rotating shaft connected between the first side edge and the second side edge; a grounding connection portion connected with the first and second side edges, wherein the first rotating shaft, the first metal housing, the grounding connection portion and the second metal housing form a first closed-groove antenna structure; a first antenna unit having a first radiation portion, a first low-frequency feed end and a first grounding end; and a first controllable capacitor connection portion having a first end and a second end, wherein there is a first controllable capacitance value between the first and second ends, the first end is connected with the first side edge, the second end is connected with the second side edge, and the first controllable capacitance value is controlled by the control unit. The space occupied by the antenna is reduced without losing the function of switching operation frequency of a wireless wide area network and the application function of a wireless area network or WiFi, and the interference on the position arrangement of the antenna is not generated.
Owner:CHANGSHU HONGBO COMM TECH CO LTD
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