35results about How to "Meet alignment requirements" patented technology

The invention relates to an optoelectronic module (M) for converting an electrical signal from an electronic card into an optical signal or vice versa, comprising the following stack: an electronic card (1) for serving Interface with an application electronic card; An electronic control component adapted to carry out the control of an optoelectronic component, the electronic component being fixed directly on the electronic card and electrically connected to the electronic circuit; an optoelectronic component (3) adapted to emit or receive a light signal via its upper surface, the optoelectronic component being fixed directly on top of the electronic component and electrically connected to the electronic component; An optical device (9) adapted to transmit an optical signal; An optical device support (10), the support being fixed directly to the electronic card so as to ensure the mechanical alignment between the optical device and the optoelectronic component.

The invention belongs to laser technology, and relates to a laser gyroscope annular resonant cavity light path alignment device and method. The laser gyroscope annular resonant cavity light path alignment device comprises a laser device, a light path adjusting component, polarizers, a half transparent and half reflecting mirror, high-reflectivity mirrors, plane mirrors, spherical mirrors, cavity adjusting tools and photoelectric receivers, wherein light output by the laser device enters the polarizers and the half transparent and half reflecting mirror after being adjusted through a light beam adjusting mechanism, then one path of light is directly injected into an annular resonant cavity in the horizontal direction, and the other path of light is reflected by the high-reflectivity mirrors and then is injected into the resonant cavity in the vertical direction. The photoelectric receivers are connected with the resonant cavity through the polarizers and used for detecting output light in the horizontal and vertical direction respectively. The spherical mirrors are dynamically adjusted in real time according to characteristics of linearly polarized light received by the two receiving light paths, annular resonant cavity light path alignment is completed until extinction coefficients of polarized light clockwise and counter-clockwise paths are equal, and tiny non-coplanar light path compensation of the annular resonant cavity is achieved.

The invention discloses a reflective telescope adjustment method which comprises the following steps: replacing a correction lens group with an adjustment camera; obtaining second internal and external parameters of the adjustment camera and a telescope as an integral part according to a calibration image shot by the adjustment camera; according to the first internal and external parameters and the second internal and external parameters of the adjustment camera and a pre-established mapping relation model, determining a relative position relation between the telescope and the adjustment camera to adjust the adjustment camera to be aligned with the telescope. According to the invention, the correction lens group is replaced by the adjustment camera, and the alignment adjustment between thecorrection lens group and the telescope is realized through the alignment adjustment between the adjustment camera and the telescope, thereby improving the installation and adjustment precision of alarge-aperture large-field-of-view telescope to a great extent, and facilitating the improvement of the detection capability of the telescope. The invention further provides an adjusting device and equipment of the reflection type telescope and a computer readable storage medium. The adjusting device and equipment have the beneficial effects in the specification.

The invention relates to technology for centering and lifting a wafer during processing a semiconductor wafer, namely a mechanism for centering and lifting a machine, in particular to an automatic centering mechanism of a semiconductor wafer, which can solve the problems such as difficult control on centering accuracy of the wafer, and adopt an automatic centering mode of meeting requirement of centering accuracy for processing the semiconductor wafer. The centering mechanism is provided with a splicing plate, a centering block, a connection plate, a bearing pedestal and a cylinder, wherein the splicing plate and the centering block are fixed on the bearing pedestal respectively, and the bearing pedestal is connected with the cylinder through the connection plate. Two centering mechanismsform a group, and the centering mechanisms at two sides work synchronously during centering. The centering process is divided into two steps, namely splicing and centering. The centering mechanism canexchange sizes of the centering block and the splicing plate according to the size of the processed wafer.

The invention relates to the nuclear power technology, and in particular discloses a long-stroke split-type hanging basket assembly capable of controlling deformation. The split-type hanging basket assembly capable of controlling deformation comprises a hanging basket barrel body, a lower reactor core plate which is fixedly connected to the lower end of the hanging basket barrel body, and a baffle which is arranged in the hanging basket barrel body; the baffle is divided into three sections; a forming plate is arranged outside the baffle; by adopting a multi-section short baffle structure, the differential temperature stress of the connection of baffles is effectively reduced and the baffle is convenient to manufacture; by adopting the forming plate, the deformation of the baffle caused by radiation thermal effect is reduced; a cooling agent runner hole corresponding to a fuel assembly is arranged on the lower reactor core plate, and meanwhile, a centering hole for the lower rector core plate and an upper reactor core plate is provided, thus the technical requirement of flow cooling of the cooling agent is met, and meanwhile the centering requirement of the lower reactor core plate and the upper reactor core plate is also met, and besides, the installation becomes more accurate and more reliable.

The invention discloses a paper tube hot extruder with a marking device. The paper tube hot extruder comprises a digital control table, a feeding mechanism, a screw transmission mechanism and a heating and extruding mechanism. An output end of the heating and extruding mechanism is provided with the marking device for marking a straight line on the outer surface of a paper tube when the paper tube is output. The marking device comprises a bracket, a marking pen, a spring and a bolt. The bracket is I-shaped; a through hole is formed on each of the three faces of the bracket; a pen point end of the marking pen passes through the through hole on the bottom face of the bracket; a pen body of the marking pen is supported through the through hole, so that the pen body is located between the top face and the bottom face of the bracket; a groove is formed at the tail part of the marking pen; a bolt is screwed in the through hole on the top face of the bracket which is sleeved at the bottom end of the bolt by tightly pressing one end of the spring of the marking pen; and the other end of the spring is located in the groove for finely adjusting a vertical position of the marking pen. With the adoption of the paper tube hot extruder with the marking device, hot extrusion and marking can be carried out simultaneously, so that the alignment requirement in a paper tube follow-up film rolling process is met, and the failure in film rolling caused by inclination of the film rolling is avoided.

A method for space synchronization of a bistatic SAR imaging system for aircraft landing, step 1. Read the coordinate position information of the transmitter and receiver in real time, establish a rectangular coordinate system with any point on the central axis of the runway as the origin, and convert the coordinate position information is the absolute coordinate value of the Cartesian coordinate system; step 2. Calculate each angle according to the absolute coordinate value obtained in step 1, adjust the transmitting angle on the vertical direction of the transmitter beam, and the transmitting angle on the horizontal direction of the transmitter beam; adjust the receiving angle of the receiver Angle: Calculate the above-mentioned angles according to the absolute coordinate values ​​obtained in step 1. By adopting the space synchronization method of the bistatic SAR imaging system of the present invention, the beam alignment requirements of the bistatic SAR imaging transceiver platform during the whole process of aircraft landing can be met, and high-precision SAR imaging can be realized.

A permanent magnet motor stator assembling device is characterized by comprising an assembling platform for supporting, a positioning plate and a guide bushing, wherein the positioning plate is provided with a guide hole and is fixed to the assembling platform, the guide bushing is axially detachably connected with a revolving shaft drive end of a rotor, and a stator is detachably mounted on the positioning plate and aligned to the guide hole coaxially; in the assembling process of the stator and rotor, the guide bushing matches with the guide hole in a guided way and runs through the positioning plate to extend to the assembling platform. In application of the permanent magnet motor stator and rotor assembling device, accurate centering positioning and guiding of the stator and the rotorduring assembling is guaranteed, centering requirements of assembling of the stator and the rotor are met, the stator and the rotor are assembled in a reliable, safe and effective way without any damage to winding, and quality and precision of assembling of the stator and the rotor are guaranteed. The invention further relates to a permanent magnet motor stator and rotor assembling method.

The present invention provides a photolithographic alignment mark structure and its manufacturing method, which is a multi-level mutual alignment precision pattern structure design and its manufacturing method. When projecting, they are all center-symmetric figures relative to the same center, and the projections of all lithography alignment figures are nested and expanded from inside to outside according to the formation sequence of lithography alignment figures, which can be applied to various lithography processes. According to different needs, it can be matched at will to meet the alignment requirements that are constant and changeable, and can meet the mutual alignment requirements of lithography alignment marks between different layers. At the same time, it can take into account the traditional alignment measurement and 3 exposures, 4 exposures The alignment measurement required for the second exposure, and it saves the space of the cutting line and reduces the cost.

The invention relates to a C-type straightening machine and belongs to the field of ultra-precision machining apparatuses. The C-type mechanical shaft automatic straightening machine comprises an automatic feeding mechanism, a touch screen and operation control panel and PLC electrical control box; an automatic discharging mechanism, a rack, a material pouring mechanism, a work piece clamping mechanism, a straightening mechanism, a measuring mechanism, a straightening moving mechanism and an automatic NG processing mechanism. With the automatic straightening and automatic feeding and discharging mechanisms and with the function of automatic angle rotation, repeated clamping is not needed in measurement and correction and procedures are saved. A displacement sensor can perform high speed data collection on work pieces and perform timely feedback. A servo motor is used as a power source for moving straightening points, so that rapid and accurate location to the straightening points is achieved and the straightening requirements of work pieces with different lengths are met. A PLC and a touch screen are used for control in the aspect of electrical control and the servo motor and an air cylinder are used as power sources; the parts are responsible for all operation commands and implementation of the apparatus.

The invention relates to a fiber connector assembly and a fiber plug and fiber receptacle thereof. The fiber connector assembly comprises a fiber plug and a fiber receptacle, a plug contactor shell of the fiber plug is provided with a plug guide sleeve that has a plug guide segment positioned around plug prongs, a receptacle contactor shell of the fiber receptacle is provided with a receptacle guide sleeve, the receptacle guide sleeve has a receptacle guide segment positioned around receptacle prongs to be in positional insertion fit with the plug guide segment and coming in positional insertion fit with the corresponding prongs prior to a ceramic bushing, and a circular gap for receiving the plug guide segment is provided between the receptacle prongs and the receptacle guide segment. The fiber connector assembly enabling improved aligning precision for plug prongs and receptacle prongs and a fiber plug and fiber receptacle used in the fiber connector assembly are provided.

The invention discloses fully automatic linear guide rail straightening equipment. The fully automatic linear guide rail straightening equipment comprises an equipment framework, a support unit, a measurement unit, a lifting unit, an overturning unit, a straightening driving unit and a control unit, wherein the control structure controls and is connected with the straightening driving unit, the lifting unit, the support unit, the measurement unit and the overturning unit and coordinates the cooperation work of all the units. The fully automatic linear guide rail straightening equipment formed by the invention is compact in structure and high in reliability, can fully automatically straighten a linear guide rail, is high in straightening degree and straightening precision, and can greatly improve the production efficiency and greatly reduce the production cost.

The invention discloses a cold-state test device for a drive line of a pressurized water reactor, which includes a simulated top cover assembly and a simulated hanging basket assembly located between the control rod drive mechanism and the guide tube assembly, and the simulated top cover assembly and the simulated hanging basket assembly are connected to form a cavity The body structure is also equipped with a control rod guide assembly in the cavity. The upper end of the control rod guide assembly is connected with the control rod driving mechanism, and the lower end of the control rod guide assembly is connected with the shroud assembly. The simulated fuel and control rod assemblies are located in the shroud assembly. A simulated pressing component is also installed between the control rod guide component and the simulated hanging basket component. The invention has the function of simulating the prototype stack to carry out the test of the drop characteristics of the control rod assembly and the influence of different operating environment conditions such as drive line eccentricity and flow change on the drop performance. The obtained test results are accurate and can be used to verify the control rods. The rationality and reliability of the design of the drive line guide structure provide the necessary test basis for the design of the drive line.

The invention discloses an electric car wireless charging system and method with storage and deviation rectification functions. The system comprises an underground pit layer, a parallel connection mechanism, a storage covering device, a ground layer, a primary coil, a secondary coil and an electric vehicle. The parallel connection mechanism is fixed to the underground pit layer, and the primary coil is placed above the parallel connection mechanism. The storage covering device is parallel to the ground and can move horizontally, and a wireless charging emission outlet can be opened and closed.The secondary coil is fixed to the lower side behind the electric vehicle. When an automobile is parked above the charging device, the storage covering device is turned on, and the primary coil is automatically aligned to the secondary coil under the effect of the parallel connection effect. When charging is completed, the primary coil is stored under the ground under the effect of the parallel connection effect, and the emission outlet is closed by the storage covering device. Storage and deviation rectification of the wireless charging process of the electric vehicle can be achieved, the electric vehicle wireless charging efficiency is effectively improved, and the charging process is more convenient.

The invention belongs to the field of satellite positioning, and in particular relates to an inertial navigation initial alignment method with altitude sensor-assisted pseudolite positioning. The method includes step 1, calculation of the initial position of the inertial navigation alignment package, step 2, rough alignment of the inertial navigation, and step 3, fine alignment of the inertial navigation. The method can effectively eliminate the influence of excessive VDOP on the positioning results in pseudolite positioning, and obtain accurate positioning results, so that the positioning results of satellites can meet the requirements of inertial navigation alignment, and the pseudolite positioning results have large errors in the height direction. Can not meet the position requirements of inertial navigation alignment, the error of the pseudolite positioning result of altitude assistance is small, and the three-way errors are all at the meter level, and the altitude assistance can significantly improve the pseudolite positioning result.