237results about How to "Realize automatic compensation" patented technology

The related Michelson interferometer with only one optical fiber comprises: integrating the co-light-path part of source input and signal output and two interference arms into one optical fiber; and using the integrated optical fiber with one segment as mono-core fiber and one segment as dual-core fiber to replace the conventional product. The advantages of this invention include: 1. well stability; 2. small size and compact structure; 3. low requirement to source coherence; and 4. automatic compensation for light path difference.

The invention provides a follower rest for hydraulic automatically centering, automatically compensating and surface rolling. Because three follower claw units enable workpiece to stress from three points, the three force forms a plane concurrent force system to achieve balance, thereby eliminating the shortcoming that the workpiece is easy to deform and bend caused by rolling by a single wheel. When the follower rest is used, the pressure is manually adjusted; and the too loose or too tight phenomenon of the common follower rest can be eliminated. When the diameter of the workpiece becomes little after turning, a hydraulic unit adjusts the pressure of the follower claw units to the workpiece so as to automatically compensate. When the surface size precision and the surface quality requirements of the workpiece are high, the hydraulic oil pressure is appropriately adjusted, so that three rolling wheels of the follower claw units simultaneously and evenly press the workpiece; the rotation of the workpiece drives the rolling wheels to rotate; and the follower rest rolls the surface of the workpiece during longitudinal moving. The follower rest provided by the invention has the functions of automatically centering, automatically compensating and pressing surface when the follower rest is used for turning an elongate shaft. The follower rest is convenient to use, high in stability and has relaxed requirements to tools.

The invention discloses a method for automatically compensating pose errors in the machining process of an optical element, relates to the machining field of optical elements, and aims to provide a method for automatically eliminating installation errors without adjusting a workpiece. The method adopts the following steps that the optical element is firstly clamped on a working table of a machine tool, and the surface of the optical element is measured; actual position measuring points are then transformed to be theoretical position measuring points according to a pose error vector construction transformation matrix; an objective function for solving pose error vectors and a solving mathematic model are built, and the pose errors are solved; a transformation matrix is built according to solutions of the pose errors, and position vectors and direction vectors of resident points on machining paths are transformed respectively; finally, the transformed resident points are subjected to post-processing to obtain a machining program after pose error compensating. The method can accurately and rapidly compensate the pose errors of the optical element and is suitable for being applied to the field of optical machining controlled by a computer.

The invention belongs to the field of automatic manufacturing of lithium ion batteries and particularly relates to a capacity grading compensation method which comprises the following steps: performing battery cell capacity grading, at the same time monitoring and testing an ambient temperature, synchronously recording voltages and current of a battery cell in capacity grading, and compensating according to a capacity and temperature fitting curve till a capacity in an environment required by a customer, so as to effectively reducing the problems that testing conditions required by customers and manufacturers are not accordant. In addition, by adopting the method provided by the invention, automatic compensation can be achieved from local testing equipment to an MES (Manufacturing Execution System) simultaneously, by barcode tracing can be achieved, and the method is low in cost and high in efficiency.

The invention relates to a gapless gear transmission device and a method for removing a gear transmission gap. The gapless gear transmission device comprises a third gear connected with an output shaft of a driving device, a first gear and a second gear, wherein the first gear and the second gear are simultaneously meshed with the third gear and installed on a gear shaft in parallel, gear modules of the first gear and the second gear are same, the first gear is fixed on the gear shaft through a key groove, and penetrated wedge-shape similar holes are arranged on a gear face of the first gear. The second gear is sleeved on the gear shaft and can rotate along the gear shaft, axial movement is achieved through a spring and an adjusting nut installed on the gear shaft, a wedge-shape similar protruding block matched with the wedge-shape similar holes is arranged on the second gear corresponding to the positions of the wedge-shape similar holes, and a junction surface of the holes and the protruding block is a spiral curved surface. Staggered angles between the first gear and the second gear are adjusted through mutual rotation between the wedge-shape similar holes and the wedge-shape similar protruding block, and a transmission gap between gears is removed. The gapless gear transmission device and the method are simple in structure, convenient to operate and wide in application scope.

The invention aims at providing a centerless grinding machine device. The centerless grinding machine device comprises a grinding wheel, a guiding wheel, a workpiece, a layer board, a machine body, a grinding wheel dresser, a guiding wheel dresser, a guiding wheel feeding mechanism, a grinding wheel feeding mechanism, servo motors, mechanical arms and a control cabinet. The workpiece is borne by the layer board. The grinding wheel and the guiding wheel are located on the two sides of the layer board respectively. The grinding wheel feeding mechanism is used for controlling feeding of the grinding wheel. The guiding wheel feeding mechanism is used for controlling feeding of the guiding wheel. The mechanical arms are located on one side of the grinding wheel and one side of the guiding wheel. The mechanical arms are controlled by CNC to grab the workpiece to finish feeding and discharging operation. The centerless grinding machine device has the beneficial effects that the feeding devices are driven through the servo motors, and automatic dressing and automatic compensating of a centerless grinding machine are achieved; the mechanical arms are controlled by CNC to carry out automatic feeding and discharging, the auxiliary time in the machining process is greatly shortened, and the labor intensity of workers is relieved; and the labor cost is reduced, and the machining precision and the productive efficiency are improved.

The invention relates to the field of electrical connector test, and especially relates to an underwater separable connector test device. The underwater separable connector test device comprises a simulation container on which a pressure compensation device is arranged. The pressure compensation device is arranged on the simulation container of the underwater separable connector test device, so that the pressure compensation device can compensate the pressure of water in the simulation container after separation of a connector to enable the water pressure of the environment of the connector before and after separation to be basically the same, thereby improving the similarity of simulation of pressure in the using environment of an underwater separation connector.

The invention discloses an automatic preamplification and precompensation twisted-pair video transmission system. The basic structure of the system at least comprises a transmitter, two pairs of twisted pairs and a receiver, wherein the transmitter comprises at least one video input impedance matching circuit, whereas the receiver comprises at least one video output impedance matching circuit; the transmitter also comprises a multistage stepping adjustable gain video weighting amplifier, a reference signal generator, a multipath selective switch, a microprocessor and a data communication transceiver, and the receiver also comprises a signal amplitude detector, a microprocessor and a data communication transceiver, wherein the signal amplitude detector sends the amplitude of a reference signal to the microprocessor. The structure can effectively carry out automatic and accurate compensation on the loss of a video signal in twisted-pair transmission, reduce the engineering debugging difficulty and improve the capacity of resisting disturbance of video signal transmission. The invention also discloses the automatic preamplification and precompensation twisted-pair video transmission method.

The present invention provides a rolling apparatus for the rolling and press of the edge of the parts (20, 25), the apparatus includes: a rolling heads (11,12,13); b, the first roller (14a, 14b, 14c), is mounted by the rolling heads (11, 12, 13) and rolled on the edge during the rolling and pressing time; c, the second roller (15a, 15b, 15c) is mounted by the roller heads (11, 12, 13) and forming counterpressure roller used for the first roller (14a, 14b, 14c); characterized in that the rolling device includes a stable protection structure (1, 3), it is fastening or fasten on the parts (20, 25), and forming a rolling surface or a supporting rolling surface used for one of the roller (15a, 15b, 15c).

The invention provides a fiber grating self-compensating strain transducer manufactured by adopting an online molding process, relating to the technical field of temperature transducers. A compensating device is composed of a part B and a solid body which are connected in series, wherein, the solid body is manufactured by adopting the online molding process for embedding and fixing the whole fiber grating in the solid body, and at least one of the cross-sectional area and thermal expansion coefficient of the part B and the solid body is different from each other. The strain transducer has the positive effects that: when the environmental temperature rises or falls, the automatic compensation to grating wavelength temperature drift can be realized by the effect of stress deformation, with precision compensation and good working stability; moreover, the strain transducer also has the advantages of small size, low cost, easy processing, good working stability, convenient use, stability and reliability, and long service life; the molding process of the strain transducer is simple and convenient, the compensation performance can be guaranteed to be reliable, and the problems that grating adhesive process has easy creep deformation, easy aging, unreliable grating combination, short service life and the like in the prior art are solved.

The embodiment of the invention discloses a hyperbaric oxygen chamber equipment operation monitoring method and system. The method comprises the steps that a hyperbaric oxygen chamber environmental oxygen index and a physical information index of a user are obtained, the control relationship is established between the environmental oxygen index and the physical information index, and when at leastone of the conditions that temperature detection data deviates from a body temperature early warning threshold value, pulse detection data deviates from a pulse early warning threshold value, blood pressure measurement data deviates from a blood pressure early warning threshold value, blood oxygen saturation data deviates from a blood oxygen early warning threshold value, and electrocardio data deviates from an electrocardio early warning threshold value is met, the environmental oxygen concentration, environmental oxygen pressure, environmental oxygen flow and environmental temperature are adjusted according to a concentration regulation step value, a pressure regulation step value, a flow regulation step value and a temperature regulation step value; deviations include greater or less than the early warning threshold value. Accordingly, by judging the oxygen pressure, concentration and flow in the hyperbaric oxygen chamber environment, equipment operation parameter real-time monitoring and feedback control is achieved, occurrence of dangerous accidents is avoided, the equipment operation is more efficient, and energy consumption is lowered.

An all-solid-state chip optical beam forming system comprises a tunable light source, a semiconductor optical amplifier, an optical phased array, a far-field detection module, an offline calibration module and an electric control module, wherein the semiconductor optical amplifier amplifies the laser power from the tunable light source by injecting a proper driving current, and transmits the laserpower to the optical phased array through the on-chip waveguide; or the semiconductor optical amplifier and the tunable light source are integrated together and transmitted to the optical phased array through the coupling optical fiber; according to the optical phased array, single longitudinal mode laser enters from a cleavage surface and is equally divided into m paths of waveguides by a properamount of optical beam splitters, and the laser in each waveguide is equal in power; after passing through the thermal regulation electrodes loaded on the waveguides, the waveguides are arranged at certain intervals and radiated into a free space above the waveguides through gratings etched at the tail ends of the waveguides, and m paths of array element radiation beams are superposed to form a phased-array antenna directional diagram of a phase dimension; and the radiation direction of the grating at the tail end of the optical phased array waveguide is changed by tuning the wavelength of the light source.

The invention relates to an automatic compensation device and method for a background field of a fluxgate magnetometer. The device comprises an analog/digital (A/D) converter, a micro control unit (MCU) and a D/A converter; the A/D converter acquires the measurement value of the fluxgate magnetometer from a sensor probe of the fluxgate magnetometer, converts the measurement value into a digital signal in real time and provides the digital signal for the MCU for operation; and a digital compensation signal obtained by operation of the MCU is converted into an analog voltage signal through the D/A converter, and the analog voltage signal is coupled to a compensation coil in the sensor probe of the fluxgate magnetometer. The method comprises the following steps of: acquiring signals by the A/D converter; judging whether compensation is needed and giving the magnitude and the direction of an initial compensation value by the MCU, and outputting compensation current by the D/A converter; repeating the compensation cycle; and placing the sensor probe in a quasi-zero field by a plurality of compensation cycles. In the invention, manpower for operating instruments on site is not needed, compensation efficiency and precision are improved, and the device and the method can be used for deep well observation and remote monitoring and intelligent measurement of the instruments.

The invention discloses a ram flexibility compensation mechanism of a heavy numerical control floor type milling and boring machine. Flexible deformation is compensated by using a pull rod. The ram flexibility compensation mechanism is characterized in that: two elongated pull rods are arranged at two corners above the internal space of a ram; a hydraulic oil cylinder for providing pull force is fixed at the rear end of the ram; after being serially assembled by the pull rods, the ram, the pull rods and the oil cylinder are fixed by using a sleeve screw cap at the rear end of the hydraulic oil cylinder; a sleeve is designed between the pull rods and a piston for connecting the piston and the pull rods; the sleeve is integrally fixed to the pull rods at the rear ends of the pull rods through screw caps; no relative motion exists between the pull rods and the piston; baffle rings are embedded between the sleeve and the piston in pair to fix the sleeve and the piston; and the pull rods are driven by the piston to produce backward pull force by the cam, so that bending deformation caused by gravity of the cam is compensated. According to the designed sleeve, the strict process of machining an annular groove is saved, and a supercharging oil cylinder meets the requirement of small size. According to the design, automatic compensation for the motion straightness of the cam can be realized, meanwhile, motion straightness of the main shaft can also be obviously improved.

The invention relates to a numerical control type universal polishing unit. A portal frame is fixed to a machine base, the machine base is provided with a product clamping mechanism, a polishing mechanism is installed on the portal frame, and the product clamping mechanism and the polishing mechanism are controlled to act by an electric control device. The polishing mechanism comprises polishing wheels, an up-and-down moving assembly, a 360-degree rotating assembly, a polishing wheel swing assembly and a spray gun assembly. The product clamping mechanism comprises a product installation jig, a jig front-and-back moving assembly, a jig left-and-right moving assembly and a jig rotating assembly. Quality is stable, and the production efficiency is high.

The invention discloses a thickness automatically-compensating device for a multi-oil-chamber static pressure oil film, and system thereof, wherein the device is composed of a cylinder, and a piston which can move up and down in the cylinder and which is not separated from the cylinder by action of hydraulic oil, wherein an inner cavity which has an opening on the top and depth greater or equal to height of the piston is arranged in the cylinder, and the piston is arranged in the inner cavity; the cylinder is provided with a hydraulic oil supply channel of a closed space formed by communicating the inner cavity or communicating the piston with the inner cavity; a side wall of the cylinder is provided with a static pressure oil supply port; a top surface of the piston is provided with at least one oil chamber closed on a circumference; and a static pressure oil supply channel for communicating the oil chamber with the static pressure oil supply port is arranged in the piston. The piston can axially move up and down and can be not separated from the cylinder by common action of hydraulic oil and static pressure oil to automatically compensate thickness of oil-chamber oil films, thereby ensuring thickness of the multi-oil-chamber oil film is consistent, and loads are distributed uniformly.

The invention discloses a brake shoe wear automatic compensation device for a hydraulic disc brake, which comprises a rack. An oil cylinder is arranged on the rack; a cylinder cover is arranged on the end surface of one side of the oil cylinder; a brake shoe is arranged outside the end surface of the other side of the oil cylinder; the brake shoe mainly consists of a brake seat and a brake rubber block; the brake rubber block is arranged on the brake seat; a piston is arranged in the middle position of the oil cylinder; one end of the piston is provided with a rotating rod, and the other end of the piston is mounted with a piston rod; the brake seat is connected with the piston rod in a sleeving way; a brake spring is arranged between the piston and the brake seat; the front end of the cylinder cover is provided with an end cover; an automatic detection mechanism is arranged between the end cover and the oil cylinder; a transmission mechanism is arranged on the end cover; and one end of the transmission mechanism is in contact with the automatic detection mechanism, and the other end of the transmission mechanism is connected with the rotating rod. The brake shoe wear automatic compensation device for the hydraulic disc brake avoids brake failure caused by continuous wear to the brake shoe in the operating process.

The invention discloses a rubber extruder. The rubber extruder comprises a feeding cylinder, bearings, a shell and a rotation shaft. Two ends of the rotation shaft are each provided with a section of a thread. The inner walls of the two ends of the feeding cylinder are each provided with a first isolation plate and a second isolation plate. The first isolation plates and the second isolation plates are disposed between the corresponding bearings and the threads. An annular column is arranged between each first isolation plate and the corresponding second isolation plate, and a tapered face is arranged on the inner wall of each annular column. A seal ring is arranged in each annular column and in fit with the annular column through the corresponding tapered face, and a spring is arranged between each seal ring and the corresponding first isolation plate. One end of the shell is fixedly connected with a die sleeve, and a through hole is formed in the center of the die sleeve. An annular cylinder fixedly connected with the inner wall of the shell is arranged in the shell, and a die core is in thread fit connection with the interior of the annular cylinder and penetrates through the shell. A discharging hole is formed between the inner surface of the die sleeve and the outer surface of the die core. A thread is arranged on the outer circular face of the die core, and a die core sleeve in thread fit connection with the die core is arranged on the outer circular face of the die core. By means of the extruder, the extrusion quality of rubber materials and work efficiency can be improved.