15results about How to "Low processing technology requirements" patented technology

The invention relates to a dispersion compensation annular reflector and a preparation method thereof. Comprising a substrate, a silicon waveguide core layer arranged on the substrate, and a first 1 * 2 multimode interferometer, a first bent conical waveguide, a second bent conical waveguide, a first mode converter, a second mode converter and a first coupling waveguide which are arranged on the silicon waveguide core layer, the first end and the second end of the first 1 * 2 multi-mode interferometer are respectively provided with a port and two ports, and the port of the first end is connected to the section of the incident and emergent waveguide through the first single-mode waveguide; the two ports of the second end are connected to the input ends of the first mode converter and the second mode converter through the first bent conical waveguide and the second bent conical waveguide respectively, and the output ends of the first mode converter and the second mode converter are connected through the first coupling waveguide. The device provided by the invention can be adapted to various material platforms, and has good integration with other devices.

The invention discloses a low-temperature drift silicon resonance accelerometer structure, which relates to the technical field of inertial navigation and comprises a middle layer, an upper glass cover plate and a lower glass cover plate, the upper-layer glass cover plate and the lower-layer glass cover plate respectively cover two sides of the outer frame of the middle layer and are bonded with the outer frame, so that the middle layer is packaged in vacuum; a supporting point of the resonator is designed at the geometric center of the middle layer of the accelerometer, a center anchor point, an amplification lever structure and the double-end fixed tuning fork type resonator are connected through a resonator center supporting beam, detection comb teeth are driven to measure resonant frequency influenced by inertia force, frequency signals are led out to the outside, and acceleration is represented; in the design of the invention, the measurement structure of the middle layer is fixed with the shell only through one supporting point, the influence of thermal stress on the performance of the accelerometer is obviously reduced, and the design enables the double-end fixed tuning fork type resonator to be close to a free thermal expansion state when the temperature of the accelerometer changes, so that the stable frequency response is kept.

The application discloses a laser scanning device and electronic equipment, which comprises a fiber actuator, a lens and a galvanometer assembly. The fiber actuator is connected with an optical fiber and drives the optical fiber to vibrate and scan on a first plane at a first working frequency under the drive of an external driving signal, and an external laser beam is emitted into the lens through the optical fiber. The galvanometer assembly is provided with a reflecting mirror, which has a first inclination angle and can rotate and vibrate around an axis parallel to the first plane at a second working frequency under the drive of an external driving signal, so as to project and reflect the light emitted from the lens to a preset area and form an image. Through the laser scanning device, the size of the laser scanning device can be reduced while the imaging quality is ensured.

The utility model discloses a single-chip triaxial MEMS (Micro Electro Mechanical System) gyroscope which comprises four vibration mass blocks, a spring beam, a surface doped sensing beam, a side doped sensing beam, a driving electrode and a detection electrode, force sensing resistors are formed on the surfaces of the surface doped sensing beams through doping, force sensing resistors are formed on the side faces of the side face doped sensing beams through doping, and in-plane and out-of-plane deformation of the sensing beams caused by the Coriolis force is detected through changes of the force sensing resistors of the surface doped sensing beams and the force sensing resistors of the side face doped sensing beams respectively. Therefore, angular velocities in different axial directions can be detected. The three-axis angular velocity measurement is realized in a single chip, and compared with a capacitive MEMS gyroscope, the three-axis angular velocity measurement device is simple in structure and relatively low in processing precision requirement, and has certain practicability.

This invention discloses a manually adjustable sliding rail locking and unlocking mechanism. A downward-facing notch is provided in the lower sliding rail as a slot. A resilient toothed plate serves as the locking and unlocking actuator for the upper and lower sliding rails. The elasticity of the toothed plate presses the teeth into the slot, locking the lower and upper sliding rails. An operating component applies downward pressure to the front end of the locking plate to disengage the teeth from the slot, unlocking the lower and upper sliding rails. This mechanism features a novel and simple structure with high reliability. Furthermore, by using an operating handle as the operating component and adding a lower and upper silencing pad to the locking plate, this invention effectively reduces noise during the locking and unlocking processes of the lower and upper sliding rails, preventing abnormal noises caused by the operating handle colliding with the lower and upper sliding rails, the toothed plate, and other metal components during the adjustment of their relative positions.

This invention provides a blocking separation structure, a blocking separation device, and a turret-type testing equipment. The turret-type testing equipment includes a feeding structure and a blocking separation device. The blocking separation device is installed at the front end of the feeding structure and includes a feeding structure and a blocking separation structure. The blocking separation structure includes a fixed bracket, a movable bracket, first and second adjusting fixing components, and a pressing component connected in sequence. The fixed bracket is connected to the feeding structure. The movable bracket can rotate up and down around a rotating shaft, thereby driving the pressing component to rise or fall. When the pressing component rises, it releases the product; when it falls, it presses down on the product. The first adjusting fixing component can be adjusted in a first direction, the second adjusting fixing component can be adjusted in a second direction, and the pressing component can be adjusted in its rising and falling direction. This invention simplifies the product blocking separation structure, reduces debugging difficulty, and provides better blocking effect and longer service life.

The application relates to the field of optical communication technology, and particularly discloses a one-way coupling vertical grating coupler implementation method based on topological photonics; the method is based on an SOI platform, first, the size parameters of a uniform grating coupler are modeled and optimized; a single-etching rectangle in the grating is replaced by double-adjacent-rectangle etching to form a stepped structure, the up-down symmetry of the grating is destroyed, and the downward radiation is inhibited and the upward coupling is strengthened relying on the topological one-way coupling resonance principle; a super-Gaussian chirp function is introduced to modulate the etching width, the central period index, the envelope width and the super-Gaussian order are optimized, and the fiber mode field is matched; meanwhile, a waveguide and grating differential height design is adopted to expand the optimization space. The application does not need a DBR mirror and can be prepared only by surface etching, so the process is simplified; the grating to single-mode fiber coupling efficiency reaches 83.7%, the 3dB bandwidth is more than 79nm, and the application has the advantages of high coupling efficiency, wide bandwidth and high process fault tolerance.

The invention discloses a waveguide window for a W frequency band, which comprises a waveguide window substrate (1) and a metal cavity (2), a slot is arranged in the metal cavity (2) and is used for forming an air waveguide, the waveguide window substrate (1) is welded on the surface of the metal cavity (2) and is aligned with the slot, and the contact surface of the metal cavity (2) and the waveguide window substrate (1) is subjected to gold plating protection treatment. The surface of the waveguide window substrate (1) is subjected to gold plating protection treatment; the metal cavity (2) is provided with a W-band standard waveguide port, and the waveguide window substrate (1) is provided with a waveguide window opening and a grounding hole. And the waveguide window substrate (1) is welded on the surface of the metal cavity (2) for air tightness. Meanwhile, W signals can be ensured to pass through transmission by adjusting parameters such as the position of a grounding hole and the size of a window of the waveguide window substrate.

The utility model discloses an assembling structure of an integrated lamp assembly and a main machine shell of a clothes airing machine. The assembling structure comprises the main machine shell, the lamp assembly and a supporting assembly. The host shell comprises a top plate and two side plates; the lamp panel and the light-transmitting lampshade are overlapped up and down to form an integrated lamp assembly, and the second turned-over edge and the first turned-over edge are overlapped up and down to form a turned-over edge part; the supporting assembly comprises a first supporting strip and a connecting block; first connecting parts are arranged at the two ends of the first supporting strip; the connecting block comprises a connecting main body and a hook; an inserting groove is formed in the side part of the connecting main body; the first supporting strip is placed on the upper surface of the lamp panel, the first connecting part is overlapped on the upper surface of the turnup part, and the first connecting part and the turnup part are inserted and embedded into the inserting and embedding groove of the connecting block; the first supporting strips are fixedly arranged on the upper surface of the lamp assembly in a mutually parallel mode, and the hooks of the connecting blocks are laterally hooked into the hanging holes of the side plates so that the lamp assembly and the main machine shell can be assembled and connected up and down. The device has the advantages of being convenient, efficient and firm to assemble, saving consumables, reducing cost and improving efficiency.

The invention belongs to the technical field of water tower cleaning, and particularly relates to a fixing device, a fixing method and a dismounting method of a water tower cleaning system. Comprising a fixing piece which is provided with a connecting part and a buckling part; the fastening part is movably arranged on the connecting part and used for fastening the buckling part on the mounting hole, and the sealing part is used for sealing the fastening part or the fixing part and the edge of the mounting hole; the buckle part comprises a plurality of buckle strips which are annularly arranged, a spacing area is formed between every two adjacent buckle strips, one end of each buckle strip is provided with an insertion part used for being inserted into the corresponding mounting hole, and the buckle part has a loosening state in which the insertion parts are separated and a retracting state in which the insertion parts are gathered together. Due to the fact that the buckling part can be switched between the loosening state and the inward contracting state, dismounting and mounting are very convenient and labor-saving, the water tower only needs to be perforated, and the technical requirement is lowered.

The utility model provides a kind of fuse with novel temperature sensing body mounting structure, including shell, electrically conductive connecting piece is equipped in shell, first electrically conductive body, second electrically conductive body are equipped in the side of electrically conductive connecting piece, limiting cavity is equipped in the middle of the other side of electrically conductive connecting piece, first elastic deformation body and organic temperature sensing body are equipped in the limiting cavity.In the utility model application, first electrically conductive body, second electrically conductive body and electrically conductive connecting piece form U type electrically conductive path;Through the cooperation of first elastic deformation body and organic temperature sensing body, reliable fusing function is realized;The utility model improves the electrically conductive stability, reduces the influence of current, temperature and other factors on organic temperature sensing body, is suitable for high current application scene, further strengthens the accurate control to organic temperature sensing body;The middle of the side of electrically conductive connecting piece is specially provided with the limiting cavity that contains organic temperature sensing body, organic temperature sensing body does not need to occupy the space of entire electrically conductive connecting piece side, while effectively reducing the volume of organic temperature sensing body, reliable fusing can also be ensured, and compared with traditional fusing structure, the technical scheme of the utility model has low processing technology requirement, reduces production cost.

The utility model belongs to the technical field of magnetic filtration, and discloses a filter assembly and a filter valve. The filter assembly comprises a filter screen and a bottom cover, and an annular mounting part is arranged at one end of the filter screen; an annular mounting seat is convexly arranged on the end surface of the bottom cover, and the mounting part is detachably and fixedly sleeved on the annular mounting seat. According to the filtering assembly, the filtering net and the bottom cover are arranged in a split mode, so that the filtering net and the bottom cover can be independently machined, the requirements for the machining technology and machining equipment are reduced, the machining process is simplified, and the production cost is reduced; when cleaning and maintenance are needed, the filter screen can be easily detached from the bottom cover, and the filter screen and the bottom cover are respectively and comprehensively cleaned, so that the filter screen can recover good filtering performance, the service life of the whole filter assembly is prolonged, and the maintenance efficiency is improved; under different working conditions or filtering requirements, filtering assemblies with different precisions may be needed, at the moment, only the filtering net needs to be replaced, the whole filtering assembly does not need to be replaced, and the adaptability and flexibility of the filtering assembly are improved.

The invention provides a surface acoustic wave device structure and device, the surface acoustic wave device structure comprises a substrate and an IDT electrode, the IDT electrode is formed on the substrate and comprises two interdigital electrodes which are oppositely arranged, each interdigital electrode comprises a bus bar and a plurality of electrodes, and electrode fingers of different interdigital electrodes are arranged at intervals in a staggered manner. At least one groove is formed in the electrode finger, and the vertical projection of the groove is located in the vertical projection plane of the electrode finger, so that the surface acoustic wave formed by excitation of the IDT electrode can be influenced by the groove to form a plurality of different sound velocity regions in the range of the electrode finger; and the propagation velocity of the surface acoustic wave at the position close to the end part of the electrode finger is smaller than the propagation velocity of the surface acoustic wave at the position corresponding to the groove of the electrode finger, so that the effect is equivalent to increase of a suppression load at the tail end of the finger strip of the electrode finger, the effect of suppressing the transverse mode can be achieved, and the processing technology requirement and the technology cost of the surface acoustic wave device structure are also reduced.

The application relates to the motor technical field and discloses a flat wire short-pitch wave winding structure, which comprises a three-phase flat wire winding structure embedded in a plurality of stator slots of a permanent magnet motor stator; the three-phase flat wire winding structure comprises U, V and W three-phase winding structures; each stator slot has 2r (r belongs to N*) layers of flat copper conductors; each branch of each phase of the U, V and W three phases comprises r parts; for the flat copper conductor coils of the first part to the rth part, there is 1 slot misplacement between the stator slots where the adjacent flat copper conductor coils are located; the flat wire short-pitch wave winding structure realizes the short-pitch effect.

This utility model belongs to the field of construction engineering technology, and specifically relates to a triangular hanging basket device for cantilever construction of cable-stayed bridges. It overcomes the problems of heavy weight and complex operation of existing cable-stayed bridge cantilever casting hanging baskets. It is 1 / 4 lighter than the previous cable-stayed hanging baskets and is simple to operate. It includes a main truss system, an anti-locking wheel travel system, a sliding beam travel system, and a formwork system. The main truss system includes multiple triangular trusses. Each triangular truss includes a longitudinally distributed main beam. Vertically distributed main truss uprights are installed on the main beams. The top of each main beam upright is connected to the front and rear ends of the main beam by two diagonal tie rods. The front and rear ends of the main beams of the multiple triangular trusses are connected as one unit by transversely distributed front and rear upper crossbeams.