689results about How to "Easy fine-tuning" patented technology

The invention discloses a butterfly-shaped semiconductor laser automatic coupling packaging device and relates to the automatic coupling packing field of an electronic device. The automatic coupling packaging device includes a column, a cross beam, and a fiber clamp, a lens clamp mechanism, a lower clamp device and a material disc mechanism arranged on a base, and a laser power meter, wherein thefiber clamp, the lens clamp mechanism and a fiber automatic angle adjusting welding device can be adjusted in position to realize accurate coupling and packaging of a butterfly-shaped semiconductor laser. The device is advantaged in that the structure design is reasonable, the whole subsequent operation from coupling, alignment and packaging can be automatically completed, compared with a traditional hand-operated production line, advantages of high automatic degree, simple and convenient operation, high production efficiency, low production cost and stable product quality are achieved.

An improved anode design, incorporating domes, for plasma reactors enhances plasma density at the anode. The domes give rise to a high-divergence, three-dimensional electric field distribution that accelerates electrons to a focused central region in the dome, thereby increasing ionization and dissociation. The enhanced plasma density increases the reaction rate at a substrate opposite the anode.

The invention relates to a locking device and particularly relates to a bandage locking mechanism which comprises a button, a bandage, a housing, a drive structure and a locking structure, wherein the drive structure is held in the housing, the housing comprises a first housing, a through hole is formed in the first housing, the button passes through the through hole and can move along the axial direction or rotate along the circumference in the through hole, the button and the drive structure are stacked up and fixedly arranged, the drive structure moves along with the button and drives the bandage to stretch so as to adjust the length of the bandage, the locking structure is held in the housing and is fixedly connected with the drive structure, and the locking structure is matched with the first housing and used for locking the positions of the button and the drive structure so as to limit the driving of the button and the drive structure. The locking device has the advantages of saving space, realizing semi-automatic control, and being steady in structure transmission and excellent in locking and fine adjustment effects.

The invention discloses a machine tool fine adjustment sizing block, and relates to the technical field of a device for installing a machine tool or regulating the machine tool height. The machine tool fine adjustment sizing block comprises a concave base, a positioning post, a first tapered wedge block, a second tapered wedge block, a first support block, a second support block and a fine adjustment screw bolt. The fine adjustment screw bolt clockwise or anticlockwise rotates, and the first tapered wedge block and the second tapered wedge block are positioned on the fine adjustment screw bolt in different threaded directions, so the moving directions of the first tapered wedge block and the second tapered wedge block are opposite, meanwhile, the first tapered wedge block and the second tapered wedge block move towards two sides or the middle, meanwhile, the first support block and the second support block are driven to descend or ascend, the vertical fine adjustment function is realized, the horizontal translation is avoided, the position precision of an adjusted element in the horizontal direction is ensured, and the fine adjustment effect is good.

The invention belongs to the technical field of laser precision detection and discloses an integrated laser probe component analyzer for macroscopic and micro-area component analysis. The integrated laser probe component analyzer comprises a laser, a frequency multiplication module, two cage-type cubes, two laser wavelength reflectors, an industrial camera, a spectrum collector, an object lens converter, a focusing object lens, a spectrometer and a computer. A front end of a light outlet of the laser is provided with the frequency multiplication module. The laser is in an electric signal communication relationship with the computer. The integrated laser probe component analyzer can realize accurate qualitative analysis and high-precision quantitative analysis of macroscopic and micro-area components, can realize fast seamless switching of macroscopic and micro-area component analysis, has a modularization design and a compact structure, and improves an equipment integrated level. All the modules have independent functions and can be operated and maintained easily. Through the optical path modularization design, users can conveniently carry out optical path calibration before use so that operation time is saved and an analysis precision is improved.

The embodiment of the invention provides a method and an electric device for controlling multimedia file playing, wherein the method provided by the embodiment of the invention can be applied to the electric device, and comprises the following steps: receiving the file playing indication; determining a target multimedia file according to the file playing indication; generating a first progress bar with respect to the target multimedia file, wherein the start point of the first progress bar is corresponding to the playing start time of the target multimedia file, and the end point of the first progress bar is corresponding to the playing end time of the target multimedia file; receiving the calling input of a second progress bar; and generating the second progress bar according to the input of the second progress bar, wherein the second progress bar is corresponding to the first part of the target multimedia file.

The invention provides an arching structure of high large-span bridge bailey beams and a construction method thereof. A fixed bracket is erected between piers on two sides through a plurality of supporting vertical columns and beams; an inclined plane is formed at top ends of every two supporting vertical columns; a plurality of inclined planes form a basic cambered surface; a standard bailey beam is erected on each inclined plane; the standard bailey beams are further connected with one another; an arc bracket is further erected on each inclined plane; casting templates are further erected on the arc brackets, so that the arching structure is formed; the preset height difference is formed through the supporting vertical columns; after the erecting of the supporting vertical columns, the arc requirement is initially achieved; the bailey beams are assembled into a plurality of inclined planes which are connected with one another; the bailey beams are erected on the inclined planes; one arc bracket is further arranged on each inclined plane. The method has the advantages of low construction difficulty, simple construction technology, convenience in operation, high safety factor and the like, and can be widely applied to construction of large span bridges, such as arch bridges and arch rings, with radian at bottoms.

The invention discloses a punctuation mark labeling model and a training method and device thereof, and a storage medium. The method comprises the steps of obtaining a first training corpus containingpunctuation marks; inputting the first training corpus into a preset neural network model with a time sequence for pre-training to obtain a pre-trained language sub-model; obtaining a second trainingcorpus containing punctuation marks, removing the punctuation marks from the second training corpus, and labeling corresponding label combinations at front and rear word segmentation units of the removed punctuation marks to obtain a third training corpus; inputting the third training corpus into an initial punctuation mark labeling model for transfer learning training, obtaining a trained punctuation mark labeling model, the punctuation mark labeling model comprising a pre-trained language sub-model, and the third training corpus comprising a punctuation-free text set and a label sequence set. According to the scheme, a large amount of training data does not need to be manually labeled, the recall rate is increased, and the obtained punctuation mark labeling model has good generalizationability and universality.

Fluorinated supramolecular polymers containing at least 5% by weight of covalently bonded fluorine atoms, based on total weight of the polymers are disclosed. The polymers comprise a fluorinated polymer chain and a (self-)complementary unit capable of forming at least three hydrogen bonds being covalently bonded to the fluorinated polymer chain. Also disclosed are materials comprising (a) a fluorinated supramolecular polymer and (b) a non-fluorinated polymer and/or (c) a fluorinated compound, the non-fluorinated polymer being a polymer containing less than 5% by weight of covalently bonded fluorine atoms, based on the total weight of the non-fluorinated polymer, and the fluorinated compound being either a low molecular weight fluorinated compound comprising at least one fluorine atom and having a molecular weight of 34 to 600 amu, or a fluoropolymer containing at least 5% by weight of covalently bonded fluorine atoms and a M_n from about 600 to about 5000.

The invention discloses an automatic coupling package method of a butterfly-shaped semiconductor laser, and relates to the field of automatic coupling package of electronic devices. The automatic coupling package method comprises the steps of feeding-onto-machine of accessories, coupling alignment, welding and the like. An automatic coupling package device realizing the automatic coupling packagemethod comprises vertical columns, a transverse beam, an optical fiber clamp, a lens clamp mechanism, a lower clamp device, a material disc mechanism, a laser power meter and the like, wherein the optical fiber clamp, the lens clamp mechanism, the lower clamp device, the material disc mechanism and the laser power meter are arranged on a base; and the positions of the optical fiber clamp, the lensclamp mechanism and an optical fiber automatic angle-adjusting welding device can be adjusted so as to realize accurate coupling package of the butterfly-shaped semiconductor laser. The automatic coupling package method is high in automation degree and high in package efficiency; the coupling package device adopted by the automatic coupling package method is reasonable in structural design, the complete subsequent procedures from coupling alignment to package can be automatically completed, and compared with a traditional manual production line, the automatic coupling package device has the advantages of being easy and convenient to operate, low in production cost, stable in product quality and the like.

A fan variable area nozzle (FVAN) includes a flap assembly which varies a fan nozzle exit area. The flap assembly generally includes a multiple of flaps, flap linkages and an actuator system. The actuator system radially and axially translates a drive ring relative an engine centerline axis. A slot within the drive ring receives the flap linkages to asymmetrically and symmetrically vary the fan nozzle exit area in response to movement of the drive ring.

A skateboard assembly includes a platform or board, a plurality of spaced wheel axles and pivotally secured set of arms connected to the frame at opposite ends of the skateboard. The truck suspension system provides shock-absorbing capabilities and includes an improved shock-absorbing system that can be easily interchanged to create a desired amount of shock-absorbing capability for the skateboard. The shock-absorbing system includes an outer shock member which encases at least one shock-absorbing insert. These shock-absorbing components are placed between each arm of the truck assembly and the board to absorb shock. The shock-absorbing insert is interchangeable so that the amount of shock absorption can be changed depending upon the rider's weight or to attain a particular ride feel. A quick release strap-down system utilizes hook and loop fasteners to create a system for easily and quickly interchanging the shock-absorbing components. A steering control system includes a resilient dampener which is adjustable to restrict the steering rotation of the wheel axles to provide shock absorption for the truck suspension system.

The invention discloses a reconfigurable man-machine coordination assembling system for an aero-engine. The system comprises a base, a lifting mechanism, a turnover mechanism, an angular fine-adjustment mechanism, a clamping mechanism, a feeding and assembling mechanism and a detecting mechanism, wherein the lifting mechanism drives the turnover mechanism to move up and down vertically; a feeding station and an assembling station are disposed on the feeding and assembling mechanism; the feeding station and the assembling station move horizontally in an X direction together; the assembling station can move horizontally in a Y direction and rotate around a C axis; to-be-assembled parts are put on the feeding station and the assembling station separately; the turnover mechanism drives the clamping mechanism to rotate around a B axis; the angular fine-adjustment mechanism is mounted between the clamping mechanism and the turnover mechanism so as to achieve fine-adjustment of the rotating amount of the clamping mechanism around an A axis; and the detecting mechanism finishes measurement of the plane gaps among the parts and the angle deflection amount, and deviation amount adjustment is finished through the feeding and assembling mechanism, the turnover mechanism and the angular fine-adjustment mechanism. By means of the reconfigurable man-machine coordination assembling system for the aero-engine, the on-site operation difficulty can be effectively lowered for workers, and the production rate is improved while the safety is ensured.

The invention provides a probe testing device, which is mainly characterized in that: a booster board is arranged between a circuit board and a space converter board and a plurality of probes are arranged on the space converter board, so that the fixed height between the surface of the circuit board and the tips of the probes can be overcome through the booster board, a space converter board withlarge thickness is not needed to be manufactured, and the difficulty and cost of manufacturing the probe testing device can be effectively reduced.