464results about How to "Reduce installation errors" patented technology

An integrated module frame and racking system for a solar panel is disclosed. The solar panel comprises a plurality of solar modules and a plurality of splices for coupling the plurality of solar modules together. The plurality of splices provide a way to make the connected modules mechanically rigid both during transport to the roof and after mounting for the lifetime of the system, provide wiring connections between modules, provide an electrical grounding path for the modules, provide a way to add modules to the panel, and provide a way to remove or change a defective module. Connector mount assemblies are provided on the sides of the modules to simplify the electrical assembly of modules when the modules are connected together with splices and to simplify the final connection of external wiring to the module.

An integrated module frame and racking system for a solar panel is disclosed. The solar panel comprises a plurality of solar modules and a plurality of splices for coupling the plurality of solar modules together. The plurality of splices provide a way to make the connected modules mechanically rigid both during transport to the roof and after mounting for the lifetime of the system, provide wiring connections between modules, provide an electrical grounding path for the modules, provide a way to add modules to the panel, and provide a way to remove or change a defective module. Connector sockets are provided on the sides of the modules to simplify the electrical assembly of modules when the modules are connected together with splices.

The present invention is primarily directed to improvements to cost-effective systems for concentrating and using solar energy. The present invention co-optimizes the frame and the primary mirrors and secondary concentrator for a cost-effective very high concentration quasi-parabolic dish system that uses no moulded optics for the primary concentration, and also optimizes fabrication jigs for the main components of that design. The present invention also optimizes cell contacts and provides cost effective receiver cooling for dense receiver arrays for very high concentration photovoltaic systems. The present invention also includes a semi-dense receiver array that can provide a higher acceptance angle than a dense receiver array, and finally includes mutual-shading impact minimization methods and apparatus compatible with very high concentration photovoltaic systems.

The invention discloses a method for calibrating the installation error of an optoelectronic pod of an unmanned aerial vehicle. The method comprises the following concrete steps: 1, firstly, determining a ground cooperation target point, and using a high precision differential global positioning system (GPS) to acquire longitude, latitude and elevation of the target point; 2, determining a flight alignment route of the unmanned aerial vehicle according to the cooperation target point; observing the cooperation target point, acquiring and recording image point coordinates of the cooperation target point, and carrying out coordinate transformation; 3, establishing an installation error diagnosis model; 4, identifying unknown parameters in the installation error diagnosis model and compensating for the installation error of the optoelectronic pod during a subsequent positioning process. According to the method, the installation angle error of the optoelectronic pod is obtained mainly by analyzing flight alignment data, and correction is performed during coordinate transformation, so that the problems that at present, the installation error calibration of the optoelectronic pod of an existing unmanned aerial vehicle is complicated to implement and inefficient are solved.

The “squeal” that occurs when an electric field is applied to a multilayer ceramic capacitor mounted on a substrate is suppressed by providing in an active part contributing to formation of capacitances between internal electrodes facing each other in a capacitor body, low-activity regions positioned near respective end edges of respective external electrodes. A facing area of the internal electrodes in the low-activity regions is less than or equal to one fifth that of the internal electrodes in a normal region having the same volume as that of the low-activity regions. This makes it possible to suppress occurrence of electric-field-induced distortion near the external electrodes bonded to a substrate and reduce the force that causes the substrate to bend.

A contact-type electric capacitive displacement sensor includes a stationary element having a stationary plate, a stationary conductive pattern formed on the stationary plate and an insulation film coated on the stationary plate and a displaceable element having a displaceable plate, a displaceable conductive pattern formed on the displaceable plate and an insulation film coated on the displaceable plate. The stationary and the displaceable conductive patterns have a cyclic pattern of conductor to thereby produce a variation of capacitance therebetween when moving relative to each other.

The invention relates to a small-caliber aspherical composite precise processing method. The method comprises the following steps of: 1. clamping a workpiece (5) on a precise machine tool, wherein axes of a grinding wheel spindle (2) and a grinding head spindle (9) are parallel, separated from a sliding table (4) and intersected with the axis of a workpiece spindle (6); and grinding and processing an inclined shaft of the workpiece (5) by a micropowder grinding wheel (3); 2. carrying out in-place measurement on the workpiece (5) by using a detecting device (7) to generate a compensation processing track, and then processing along the track by the mocropowder grinding wheel (3); and 3. using a grinding head (8) to grind and polish the workpiece (5) to finally obtain a finished product. In the small-caliber aspherical composite precise processing method, precise inclined axis mirror grinding and inclined axis magnetorheological polishing and grinding are integrated into a single machine tool, so that the installation and the tool setting errors are reduced, the working hours are also reduced, the accuracy and the efficiency are improved, the interference phenomenon is prevented, the controllability is good, and continuous processing can be achieved.

The invention provides a three-dimensional laser scanner fixing mechanism, a subway tunnel acquisition system and method. The subway tunnel acquisition system includes a three-dimensional laser scanner fixing mechanism, a rail car module, a distance sensor, an RFID reader and a host computer; the three-dimensional laser scanner The point cloud data of the tunnel ring is collected continuously, the distance sensor collects the mileage data in real time and transmits it to the host computer, and the RFID reader returns the read and written RFID smart label signal to the host computer in real time, and the host computer The computer completes multi-source data fusion and storage. The invention solves the problem that the automatic motor of the three-dimensional laser scanner cannot be locked in the section scanning mode, and avoids the damage to the scanner caused by misoperation. Through the integrated design of the two modules of the constant speed rail car and the 3D laser scanner, the quality of the collected data is improved, the automatic collection of tunnel deformation data and disease information is realized, the labor cost is reduced, and the detection efficiency is improved.

The invention discloses a self-locking auto-centering target ball mounting seat used for mounting the target ball of a laser tracer; the inner wall circle of a locating central hole (15) of the sleeve (2) of the target ball seat is provided with needle roller slots (14) which are at least arranged in trisection and used for arranging a needle roller (4); at least one cross surface of the coaxial direction of a locating guide column (9) is a polygon; and the coaxial squeezing surface (8) on each side is corresponding to one needle roller (4) assembled in the needle roller slot (14). As squeezing force is generated to the needle roller when the central saddle of the target ball is rotated, the needle roller is led to move outwards to squeeze and clamp a measured hole, so as to automatically lock and fix the target ball mounting seat, thus realizing the excellent tight static matching between the guide column of the central saddle and the measured hole. The target ball automatically centered in the central saddle of the target ball is led to be automatically positioned to the center of the mounting hole and be able to reduce the mounting error of the target ball mounting seat. The invention is suitable for measuring the mounting holes with the hole tolerance less than IT12 and the diameter between 10mm and 50mm.

The invention provides a coaxiality detector. The coaxiality detector is used for detecting the coaxiality of a hexagonal shaft, and comprises a base, a clamping mechanism, a slewing mechanism and a detection device, wherein the clamping mechanism is used for clamping the hexagonal shaft; the slewing mechanism is movably arranged on the base, and is used for supporting and driving the clamping mechanism to rotate around the central axis of the hexagonal shaft; and the detection device is arranged on the base and is used for detecting the coaxiality of the hexagonal shaft. The coaxiality detector provided by the invention adopts a precision three-jaw chuck and is connected with the base through a bearing, so that the precision three-jaw chuck cannot jump when the precision three-jaw chuck rotates in the center of the base freely; and simultaneously, the hexagonal shaft is clamped on and detached from the three-jaw chuck very conveniently; the installation error is low; and the detection precision is improved.

The invention discloses a bulb end milling cutter and a milling processing four-shaft associated device thereof. An S-shape bulb edge (1) is connected with a spiral circumferential edge (5), a bulb edge front face is connected smoothly with the circumferential edge front face (6), the bulb rear face (3) is connected with the circumferential edge rear face (7), and the bulb edge spiral groove (4) is connected with the circumferential edge spiral groove (8); the front angle of the bulb edge front face (2) is a rather big positive front angle, and is distributed with a small-big-small mode from inside to outside; the milling processing four-shaft associated device of the bulb end milling cutter comprises a latch bed (10), a horizontal longitudinal X axis straight-line motion flat stage (11), a horizontal transversal Y-axis straight-line motion flat stage (12), a vertical Z axis straight-line motion flat stage (13), a workpiece rotating shaft (14), and a front tool face milling head (15), and a rear tool face milling head (16). The invented devices are provided with characteristics of stable milling, smooth chip removal, simple structure, low cost, moderate price, and economic.

Provided in the invention is a prefabricated friction-energy-consuming self-resetting baffle communication node comprising node-domain rectangular steel tube concrete columns. A first baffle plate anda second baffle plate are arranged at the upper ends and the lower ends of the node-domain rectangular steel tube concrete columns respectively; and extending arms are arranged around the first baffle plate and the second baffle plate; H-shaped steel beams are arranged between the extending arms arranged in parallel between the first baffle plate and the second baffle plate; rubber gaskets are arranged between upper and lower flanges of the H-shaped steel beams and the extending arms; and the H-shaped steel beams and the node-domain rectangular steel tube concrete columns that are arranged inopposite are connected by high-strength prestressed steel strands with cables. The flange-included node-domain rectangular steel tube concrete columns are arranged at the top of the first baffle plate and the bottom of the second baffle plate. According to the prefabricated friction-energy-consuming self-resetting baffle communication node, the installation error is reduced; the prefabrication ofthe factory is realized; the node quality is improved; the node has the self-resetting function; the post-earthquake maintenance costs are lowered; and the anti-seismic capacity is enhanced.

The present invention provides an one-body motor integrating a brake. The motor comprises a casing; a servo motor including a motor casing, a front end cover, a rear end cover, a spindle which is located in the motor casing, wherein the front end cover is cyclic annular, and the front side of the front end cover is provided with a front annular groove and a plurality of blind holes, and the partial cross section of the front end of the spindle is elliptical; a brake consisting of a coil, a movable iron core, a friction plate, a brake disc, a fixing plate, an external gear and a plurality of brake springs, wherein the coil is embedded in the first annular groove, the movable iron core is located at the outer sides of the front end cover and the coil, one end of each brake spring inserts one blind hole, the other one end of each brake spring is sleeved and fixed at the front end of the spindle, the brake disc is located at the outer side of the movable iron core and is provided with inner teeth engaged with the external gear, the fixing plate is located at the outer side of the brake disc, and the friction plate is arranged between the movable iron core and the brake disc and between the fixing plate and the brake disc; and an output shaft. The one-body motor integrating a brake at least integrates the servo motor and the brake so as to reduce the design and installation error caused by the split-type structure.

An optical transmitting/receiving module in which spatial restriction can be relaxed by eliminating the need for providing a substrate with a submount for a photodiode. A optical transmitting/receiving module (1) comprises a light transmitting substrate (10). A groove (13) for filter is formed in the surface of the light transmitting substrate (10) and a dielectric multilayer film filter (23) is placed in the groove (13) for filter. An optical fiber (21) and a laser diode (25) are arranged oppositely on the opposite sides of the dielectric multilayer film filter (23). Furthermore, a photodiode (26) is provided on the rear side of the light transmitting substrate (10). The photodiode (26) is arranged right under a line connecting the optical fiber (21) and the laser diode (25).