41results about How to "Compensation error" patented technology

The invention belongs to the field of circuits, and particularly relates to an analog front-end circuit for capacitance detection and a current calibration method, the analog front-end circuit comprises a driving circuit, a to-be-detected capacitor, a chip signal input and output interface circuit, a current amplification circuit or charge amplification circuit, an integrating circuit and an analog-to-digital converter which are connected in sequence; the leakage current measurement and calibration controller is used for receiving a signal of the analog-to-digital converter and outputting a control signal for calibrating the leakage current to the current calibration circuit; the output end of the current calibration circuit is connected with the input end of the integrating circuit, and the current calibration circuit is used for adjusting the output of the current calibration circuit to calibrate the magnitude of the current input into the integrating circuit when receiving the control signal for calibrating the leakage current. According to the application, the leakage current measurement and calibration controller is arranged at the output end of the integrating circuit, the leakage current of the analog front-end circuit is measured, and the control signal is output to adjust the output of the current calibration circuit, so that the magnitude of the current input into the integrating circuit is calibrated, and errors caused by imbalance of the leakage current and the current of the amplifying circuit can be compensated.

The invention relates to the technical field of carton production detection, and discloses a carton production line intelligent detection system comprising an industrial camera module used for collecting carton appearance images; the dynamic speed sensor is used for monitoring the conveyor belt speed; the mechanical vibration sensor is used for detecting vibration interference of the conveyor belt; the image processing module is used for correcting and analyzing the acquired image; the control module is used for feeding back and controlling the detection result in real time; and the storage module is used for data storage and model training. Through dynamic multi-physical coupling modeling, the influence of optical distortion, speed fluctuation and vibration interference on size detection is comprehensively considered. Through a distributed optimization algorithm and a real-time feedback control mechanism, various errors in a dynamic environment are effectively compensated, the size detection precision reaches the micron level, a high-speed sensor and an industrial camera module are adopted for data acquisition, a detection algorithm is optimized through a distributed parallel computing technology, and the size detection precision is improved. And the response time of the system is controlled within milliseconds.

The invention discloses an automobile part grinding control system, which relates to the technical field of automobile part grinding control, and ensures that a grinding tool always keeps an optimal focal length and an accurate position in an operation process by accurately controlling a first focusing instruction, a first translation instruction and a first rotation instruction. A strain sensor is introduced to monitor the deformation of the workpiece in real time, and the deformation can be found in time and compensated in real time in the grinding process. The system can optimize temperature control management for different workpiece materials by considering heat conductivity coefficients k and heat conduction factors Rczz of different materials. Multiple factors of stress distribution, heat conduction, cooling efficiency and surface smoothness are considered by integrating the grinding quality index Mzqs, the machining quality grade is generated after comprehensive evaluation is provided for the grinding quality, parameters including the grinding depth, the workpiece feeding speed and the cooling system are adjusted according to the grade result, and therefore the machining quality of the final workpiece is improved.

The embodiment of the invention provides a method and device for measuring the thickness of a wafer metal film in the polishing process, polishing equipment and a storage medium. The method for measuring the thickness of the wafer metal film in the polishing process comprises the following steps: acquiring a current temperature and a current measurement signal; wherein the current temperature is used for indicating the temperature of a metal film of the wafer at the current moment; the current measurement signal is collected by an eddy current sensor, and the current measurement signal is related to the thickness of the metal film; determining the measurement thickness of the metal film according to the current measurement signal; correcting the measured thickness according to the current temperature and the temperature correction information to obtain the thickness of the metal film; the temperature correction information is used for indicating the relation among the current temperature, the measured thickness and the thickness of the metal film.

The invention discloses an application method and system of intelligent electromagnetic simulation data, and relates to the technical field of data processing. The method comprises the following steps: step 1, constructing a virtual mirror image electromagnetic space of a multi-source electromagnetic space; in the virtual mirror image electromagnetic space; calculating the difference between the characteristic decomposition result and the simulation characteristic decomposition result; 2, a test target object is placed in the multi-source electromagnetic space, and a multi-layer electromagnetic scattering interface is arranged around the test target object by taking the test target object as the center; calculating an interface propagation characteristic coefficient of the multi-source electromagnetic space according to the electromagnetic scattering characteristic; and step 3, calculating the corrected space-time electromagnetic field tensor at each time and each position in the multi-source electromagnetic space. According to the method, the high-precision space-time electromagnetic field tensor is generated through the technologies of virtual mirror image electromagnetic space construction, characteristic decomposition correction, multi-layer interface propagation modeling and the like.

The invention discloses a miniaturized satellite-ground laser communication terminal based on a single-photon detection technology, which belongs to the technical field of optical communication equipment and consists of seven light paths, the optical paths are respectively an observation receiving optical path A, a signal transmitting optical path B, a near-infrared beacon receiving optical path C, a short-wave infrared beacon receiving optical path D, a single-photon signal receiving optical path E, a single-photon beacon receiving optical path F and a beacon transmitting optical path G, and the optical paths jointly finish receiving, transmitting and detecting of single-photon / non-single-photon beacon light / signal light. The terminal can be used for satellite-ground laser communication, and compared with a traditional satellite-ground laser communication terminal, the antenna aperture is reduced by 20-30%, the size is only 20% of that of the traditional satellite-ground terminal, and the weight can be reduced by 80%; and meanwhile, satellite-ground transmission can be completed, ground point-to-point laser communication capability can be compatible, the application range of the laser communication ground station is greatly expanded, and the laser communication ground station can be widely applied to air-ground, satellite-ground, deep space and ground point-to-point laser communication.

The invention relates to the technical field of contact pin type contour measurement sensor measurement, in particular to an automatic compensation mechanism and method for a contact pin type contour measurement sensor. The automatic compensation mechanism comprises a measuring rod, a measuring needle is arranged at the front end of the measuring rod, the tail end of the measuring rod is connected with a main shaft through an adapter block, the side, away from the adapter block, of the main shaft is connected with a first rotation center, the main shaft can rotate around the first rotation center, and the first rotation center is configured to be capable of translating in the measurement advancing direction. The mechanical compensation assembly comprises a second rotation center and a connecting rod, one end of the connecting rod is hinged to the spindle, and the other end of the connecting rod is hinged to the second rotation center. The invention aims to solve the problem that the measurement precision is reduced due to measurement errors introduced when a traditional contact pin type contour measurement sensor performs wide-range measurement.

The invention discloses a multi-four-rotor aircraft position consistency control system based on attack isolation and privacy protection, and belongs to the technical field of industrial process control. Comprising a Liu password system, a network attack detection and isolation system and a consistency control system, and the Liu password system carries out encryption transmission on a provided leader expected signal and position information and obtains decryption information; the network attack detection and isolation system detects and isolates attacked followers, the input end of the consistency control system is connected with the output end of the undirected graph G, and the output end of the consistency control system is connected with the input end of the ith follower. Through the signal amplification technology of the Liu password system, the sensitivity of information is protected, and the error between plaintext encryption and decryption is reduced; and the consistent controller compensates unknown dynamic states and errors between real signals and decryption signals through a small number of learning parameters, and ensures protection of sensitive information and network security when the multi-four-rotor aircraft executes tasks.

The present invention relates to the technical field of grinding machine tools, and discloses a thermal error compensation method for a high-precision CNC thread grinder, comprising the following steps: S1: collecting working data of the high-precision CNC thread grinder, including temperature data and working parameters; S2: calculating a first predicted value and a second predicted value of each thermal error of the high-precision CNC thread grinder based on the working data; S3: fusing the first predicted value and the second predicted value to obtain a value of each thermal error of the high-precision CNC thread grinder; S4: calculating a control signal of a processing parameter based on the value of each thermal error; S5: performing thermal error compensation on the high-precision CNC thread grinder based on the control signal of the processing parameter. The present invention can effectively reduce the thermal error of the high-precision CNC thread grinder and improve the precision and quality of thread processing.

The application provides a closed-loop control integral system with amplitude compensation function, mainly comprising a non-ideal integrator, a gain-variable amplifier and a control signal generator; the non-ideal integrator receives a Rogowski coil output signal and performs integral operation on the signal to suppress integral overflow caused by interference direct current; after receiving a control signal generated by the control signal generator, the gain-variable amplifier performs amplitude gain adjustment on the output signal of the non-ideal integrator based on the control signal to compensate amplitude gain error caused by temperature drift and time drift of the non-ideal integrator; the control signal generator collects various electrical parameters of the Rogowski coil output end and combines various electrical parameters of the output signal of the gain-variable amplifier to generate a control signal for gain adjustment control of the gain-variable amplifier. By implementing the application, errors caused by device temperature drift and aging can be compensated in real time, and the application has the advantages of high measurement accuracy, low cost and more stable performance.

The invention discloses a non-ruled surface cutter axis vector optimization method, device and equipment. The non-ruled surface cutter axis vector optimization method comprises the steps that an initial cutter axis vector is determined according to the preset cutting direction of a to-be-machined non-ruled surface; judging whether a machining path is generated according to the initial cutter axis vector and a workpiece model, and in the machining execution process, whether a cutter is stressed and deformed in the initial cutter axis vector in the machining path process or not; under the condition that the initial cutter axis vector is stressed and deformed in the path machining process, the cutter stress deformation needing reverse compensation is obtained through calculation according to machining feature data, collected in real time, of the non-ruled surface; according to the reversely compensated tool stress deformation, the deformed initial tool axis vector is optimized to effectively compensate errors brought in the machining process, the optimal tool axis vector is obtained, the errors generated in the machining process are reduced, and the machining efficiency is improved.

The utility model discloses a kind of air-tight detection structure, positioning device of component processing, wherein, a kind of air-tight detection structure, include: fixed sleeve, the top of fixed sleeve is equipped with locating groove, the both sides of fixed sleeve are equipped with limit slot;Positioning rod, positioning rod is inserted in locating groove;Spring, spring is arranged between the bottom end surface of positioning rod and locating groove;Positioning block, positioning block is sleeved on positioning rod, and the top of positioning block is equipped with locating face;Air-tight detection hole, air-tight detection hole is set on positioning block;Connecting piece, connecting piece is through positioning block, limit slot and fixed sleeve, and connecting piece is connected together with positioning block and fixed sleeve.The utility model uses the support positioning with spring buffer, and error caused by processing or installation can be effectively compensated.The success rate of accurate positioning of finished part and air-tight detection effect is improved.

The utility model discloses a self-adaptive balance transmission mechanism of a linear guide rail service life testing machine. The self-adaptive balance transmission mechanism comprises a connecting seat, a T-shaped block, a cross-shaped connecting plate and an adjusting screw rod, the connecting base is provided with a through groove in sliding fit with the head of the T-shaped block, and the groove bottom of the through groove is provided with a strip-shaped hole extending out of the tail of the T-shaped block. A first hinge part is arranged at the tail of the T-shaped block, a second hinge part is arranged at one end of the cross-shaped connecting plate, and the first hinge part is hinged to the second hinge part through a first pin shaft; a third hinging part is arranged at the other end of the cross-shaped connecting plate and is hinged to the workpiece through a second pin shaft; the central axis of the first pin shaft is perpendicular to the central axis of the second pin shaft. The head of the T-shaped block is provided with a first threaded hole in threaded connection with the adjusting screw, the first threaded hole penetrates through the head of the T-shaped block in the length direction of the through groove, and the two ends of the adjusting screw are rotationally connected with the two ends of the connecting base respectively. According to the utility model, errors from a plurality of directions of the workpiece can be self-adaptively balanced.

The invention relates to the technical field of impurity detection, and discloses a method for determining impurity elements in hafnium oxide, which comprises the following steps: S1, preparing a hafnium oxide sample solution to be detected; s2, establishing a standard curve of each impurity element to be detected; s3, determining the detection precision of the instrument; s4, verifying the accuracy of the test result and the stability of the test method; and S5, respectively calculating the concentration of each impurity element to be detected in the hafnium oxide sample according to the signal intensity of each impurity element to be detected and the corresponding standard curve. According to the technical scheme, the defects of the existing detection technology in the aspect of detection of impurity elements B, P and U in hafnium oxide can be overcome, and high-accuracy detection of the impurity elements B, P and U in hafnium oxide is realized.

The application relates to the technical field of radio frequency microwave devices, in particular to a W-waveband wide-frequency RF MEMS multi-blade multi-pole switch which comprises a silicon substrate, a plurality of input / output ports and a MEMS cantilever beam switch unit, the MEMS cantilever beam switch unit is provided with a driving electrode, and the communication and disconnection of the radio frequency signal path between the corresponding input port and the output port can be controlled by applying voltage to the driving electrode. The application realizes the on-off of the radio frequency signal path by electrostatic driving control of the deformation of the cantilever beam, and the driving mode has the advantages of low power consumption, high speed and easy integration. Compared with the common single-blade structure, the application can realize more complex signal routing in a compact unit, improves the system integration and functional flexibility, realizes interference-free crossing by using the slot structure through the horizontal swing type structure and the vertical lifting type structure, significantly reduces the high-frequency parasitic effect, and ensures the transmission quality of the millimeter wave signal in the W waveband.

The invention discloses a temperature self-compensation two-dimensional material resonance MEMS pressure sensor which comprises a silicon pressure sensitive film, a two-dimensional material pressure sensitive film, a two-dimensional material temperature compensation film, a glass sealing cover and a glass capillary tube. The upper surface of the silicon pressure sensitive film is provided with two blind holes for placing the two-dimensional material pressure sensitive film and the two-dimensional material temperature compensation film respectively; a deep cavity used as a pressure sensitive area is etched on the lower surface; the two-dimensional material pressure sensitive film is used as a pressure sensitive harmonic oscillator after being subjected to vacuum packaging, is sensitive to pressure and temperature changes at the same time, and is connected with one or more two-dimensional material pressure sensitive film detection optical fibers; the two-dimensional material temperature compensation film is arranged at the edge position of the upper surface of the silicon pressure sensitive film and is connected with one or more two-dimensional material temperature compensation film detection optical fibers; the glass sealing cover is used for providing a vacuum environment; the glass capillary is used for fixing the two-dimensional material pressure sensitive film detection optical fiber and the two-dimensional material temperature compensation film detection optical fiber. The invention further discloses a corresponding measuring method and a preparation method.

The present invention discloses an electric vehicle battery pack installation and fastening mechanism and an electric vehicle, belonging to the technical field of electric vehicles: comprising a shell, a rotating lock block and a locking block, the battery pack is provided with a locking protrusion extending laterally, the rotating lock block is hinged to the shell, and is provided with a locking inclined surface; when the locking block puts the rotating lock block in a locked state, the locking inclined surface extends laterally outside the shell and is connected to the locking protrusion; when the locking block puts the rotating lock block in a released state, the locking inclined surface shrinks into the shell and disengages from the locking protrusion. The locking block of the present invention comprises a locking spring and a spring bracket arranged inside the locking spring, the locking spring can play a role of buffering and shock absorption, and compensate for dimensional errors to a certain extent. When multiple rotating lock blocks are used to lock the battery pack, and after repeated friction loss between the rotating lock block and the locking protrusion, the relative position of the rotating lock block and the locking protrusion can be automatically adjusted, so that the multiple rotating lock blocks are subjected to uniform force to a certain extent.

This utility model relates to the field of hydraulic transmission equipment technology, specifically to a composite dual-turbine hydraulic torque converter, comprising a dual-turbine hydraulic torque converter body, an input shaft disposed at the input end of the dual-turbine hydraulic torque converter body, and an output shaft disposed at the output end of the dual-turbine hydraulic torque converter body. Both the input and output shafts are fitted with sealing sleeves, which are detachably mounted on the dual-turbine hydraulic torque converter body. A rigid clamping ring is disposed inside the sealing sleeve and fitted onto the corresponding shaft. An inner sealing ring is disposed between the rigid clamping ring and the front cylindrical body of the sealing sleeve. An inner bushing is disposed on the rear side of the rigid clamping ring. Inner fitting gaskets are disposed on both the inner and outer end faces of the inner bushing. The inner fitting gasket on the inner side fits onto the corresponding shaft, and the inner fitting gasket on the outer end face abuts against the rear side of the rigid clamping ring. This utility model has good sealing performance, achieving the effect of improving sealing reliability and ensuring stable equipment operation.

The invention discloses an operation quality evaluation method, device and equipment based on Beidou positioning, and a storage medium, and relates to the technical field of Beidou navigation and Internet of Things data fusion, and the method comprises the steps: carrying out the time sequence alignment processing of Beidou positioning terminal track data, the facility state data of Internet of Things sensor nodes, and mobile terminal image data, the aligned multi-modal data is obtained; extracting a space-time distance value between each track point in the track point position sequence data of the positioning terminal and each facility coordinate in the geographical coordinate set data of the facility from the aligned multi-modal data; determining associated facility data corresponding to each trajectory point according to the space-time distance value, and constructing a space-time constraint model of the trajectory and the facility point location according to the associated facility data; quantitative evaluation is carried out on the quality of the mobile supervision object based on the space-time constraint model, a space-time correlation evaluation result is obtained, and the space-time matching precision and correlation analysis efficiency of the Beidou positioning terminal and the Internet of Things facility in a complex urban environment are improved.

The invention relates to the technical field of pressure sensor testing, in particular to an omnidirectional automatic testing device applied to a pressure sensor, which comprises a main frame. According to the omni-directional automatic testing device applied to the pressure sensor, full-automatic operation of testing of the pressure sensor is achieved, automatic feeding, clamping positioning and discharging sorting of the sensor are completed through cooperation of the longitudinally-arranged feeding pipe, the guide control frame controlled by the electric control lead screw and the classified discharging channel, manual intervention is not needed in the whole process, and the testing efficiency is improved. The test efficiency is greatly improved, meanwhile, errors caused by manual operation are avoided, and the test consistency is ensured; the all-directional pressure measuring module has the all-directional multi-dimensional pressure measuring capacity, the detachable all-directional pressure measuring module comprises multiple sets of annular detection heads, pressure testing of different angles and different areas can be carried out on the pressure sensors, the all-performance detection requirements of various pressure sensors are met, and the detection heads are detachable, convenient to replace and maintain and suitable for testing of sensors of different specifications.

The invention discloses a dry-hanging assembly, a dry-hanging structure and a construction method of a building ceramic plate curtain wall, and relates to the field of curtain wall structures. The building ceramic plate curtain wall dry-hanging assembly includes a longitudinal keel, a horizontal beam, a right-angle bracket, a hook, a loose-locking bolt and a back bolt, and a threaded connection hole is provided on the back bolt, and the loose-locking bolt passes through the hook and is threadedly fixed with the threaded connection hole. A building ceramic plate dry-hanging assembly is provided, which is convenient to connect and assemble by arranging a loose-locking bolt and a back bolt, fixing the back bolt with the plate to be hung, and then connecting the back bolt with the loose-locking bolt; a building ceramic plate curtain wall dry-hanging structure is provided, which has low requirements for the grooving and hole-opening processing of the ceramic plate body, is conducive to maintaining the overall strength balance of the ceramic plate body, and the dry-hanging structure is convenient and quick to assemble, and the dry-hanging structure after construction is stable and has high strength; a construction method of a building ceramic plate curtain wall dry-hanging structure is provided, which is convenient and quick to construct.

The present invention discloses an injection mold of an integrated plug in the field of injection mold technology, comprising an ejector plate, an ejector, a first sleeve, a second sleeve, a push rod, a first elastic rubber pad, a second elastic rubber pad, and a panel, a runner plate, a front template, a rear template, a square iron block and a bottom plate arranged in sequence from top to bottom; the front template is fixed with a front mold core, the rear template is fixed with a rear mold core, the front mold core and the rear mold core are arranged opposite to each other and form a cavity; the second sleeve is sleeved on the outside of the first sleeve, the push rod is sleeved in the first sleeve, the bottom end of the second sleeve abuts against the second elastic rubber pad, and the bottom end of the first sleeve abuts against the first elastic rubber pad; a protrusion is provided on the upper periphery of the second sleeve. During injection molding, the rebound force of the first elastic rubber pad and the second elastic rubber pad causes the protrusions of the first sleeve and the second sleeve to be pressed upwards against the corresponding positions of the metal parts, so that the injection molding colloid will not block and cover the corresponding end faces of the metal parts, thereby ensuring the injection molding quality of the product and improving the yield of the product.

This invention discloses a process-in-the-loop (CNC) device and method, belonging to the field of CNC technology. It includes a non-real-time process optimizer, which uses a deep learning-based trajectory error prediction model to optimize the process of the user-input raw trajectory data, effectively compensating for comprehensive errors generated during multi-axis machining. An interpolator and position controller are used to calculate the coordinates of the intermediate points of the motion trajectory and precisely control the tool to reach the target position. A process prediction observer utilizes neural network technology to construct a dynamic observer for real-time feedforward compensation during machining. A physical machine tool performs the machining operation. This invention employs the aforementioned process-in-the-loop CNC device and method, adding a non-real-time process optimizer and a process prediction observer. Through deep fusion prediction, optimization, and dynamic closed-loop control of the machining process using virtual machine tool simulation and physical machine tool feedback, it optimizes the machining trajectory in real time and compensates for errors.

The invention discloses a bearingless motor suspension current control method based on a two-stage execution mechanism, which aims at the high dynamic response control requirement of the bearingless motor suspension current, combines the high algorithm complexity characteristic of the bearingless motor, is based on the deadbeat thought, and utilizes the symmetry of the duty ratio in one control period of the pulse width modulation technology to control the suspension current of the bearingless motor. Current prediction and model parameter error compensation are completed by sampling the current twice in a control period, meanwhile, complete execution of a control algorithm is guaranteed in cooperation with a two-stage algorithm execution mechanism, and finally high-dynamic-performance accurate control over the suspension current of the bearingless motor is achieved. The method is easy to implement, current prediction and model parameter error identification can be completed without depending on any model parameters, the former can achieve compensation of the digital control delay effect, and the latter can achieve compensation of the model parameter errors. The two-stage algorithm execution mechanism improves the execution efficiency of the control algorithm, guarantees the complete execution of the control algorithm, and is universal.

The present invention discloses a method and system for compensating the estimated position error of a rotating high-frequency injection method, and belongs to the technical field of motor control. The motor rotor position obtained by the rotating high-frequency injection method is compensated for the phase shift caused by the non-ideal factors of the inverter and the inherent phase shift of the rotating high-frequency injection method algorithm, so as to obtain the rotor position actually input into the motor closed-loop control system. The present invention can conveniently calculate the phase shift of the high-frequency current caused by the non-ideal factors of the inverter by extracting the form of the high-frequency positive sequence component of the current generated by the injected high-frequency voltage in the high-frequency synchronous rotating coordinate system, and compensate for the error of the rotor position obtained by the rotating high-frequency injection method, so that the error approaches zero.

The invention relates to the technical field of power supply or distribution circuit devices or systems and electric energy storage systems, in particular to a novel power system dispatching optimization method integrating renewable energy sources. The technical problem that prediction precision and reliability of an existing method are difficult to meet actual requirements of power grid refined scheduling is solved. The method comprises the following steps: determining a first target value among various environmental data based on first data at a first time point; the first target value is used for representing relevance among various environmental data; determining a second target value among the various environmental data based on the first target value, a fluctuation variable of the first environmental monitoring value at the second time point and a power variable of the first power generation power at the second time point; the second time point is a time point when the first generated power fluctuates; determining predicted power generation power of the target time point based on the first data, the second target value and a second environment predicted value of the target time point; the method is used for a power system dispatching optimization scene.

The present invention discloses an adaptive boundary anti-disturbance vibration reduction control method for a flexible manipulator system, which belongs to the field of flexible manipulator vibration suppression. First, the Hamilton principle is used to model the flexible manipulator system as a distributed parameter system; the input saturation and dead zone problems are transformed into new saturation problems, and an auxiliary system is designed to forward compensate the difference between the control input and the actuator output; the composite influence of matching and non-matching interference on the distributed parameter system is compensated by designing an adaptive law; the Lyapunov direct method is used to combine the barrier Lyapunov function to propose an adaptive boundary controller, and the system stability is proved. Under the action of the proposed control scheme, the slope of the angular displacement tracking error of the flexible manipulator and the arm end deflection is limited to a safe range, and the angular displacement tracking error and the arm deflection can converge to a small neighborhood of zero, thereby realizing the angular displacement tracking and anti-disturbance vibration reduction control of the flexible manipulator system under constraints.

The utility model relates to the technical field of printing, and discloses a multilayer printing cylinder device capable of improving printing ink adhesion uniformity, which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a fixing plate, the inside of the fixing plate is fixedly connected with a hydraulic cylinder, the driving end of the hydraulic cylinder is fixedly connected with a sealing box, and the sealing box is fixedly connected with the bottom plate. A first motor is fixedly connected to the interior of the sealing box, a first limiting wheel is fixedly connected to the driving end of the first motor, a belt is arranged in the first limiting wheel in a sleeved mode, a second limiting wheel is rotatably connected to the inner wall of the sealing box, and a first connecting rod is fixedly connected to the interior of the second limiting wheel. The outer side of the first connecting rod is fixedly connected with a pressure roller. According to the utility model, by adjusting the pressure roller, the pressure between the printing cylinder and the material can be accurately adjusted according to the characteristics of the specific material, and the pressure can be increased for the thicker or higher-hardness material so as to ensure that the ink is fully transferred.

The utility model discloses an anti -deformation's air cooler protection net shell support relates to protection net shell support technical field, including the fixed support of fixed on the wall, the fixed support front side bottom is equipped with the main support, and the air cooler is located the inside top of main support, the fixed support front side with the both sides of main support all are connected through anti -deformation subassembly, is used for reducing the impact force of external force impact main support, plays the buffer protection, the inside of main support is equipped with two adjusting assembly, is used for supporting the air cooler of different size size, the anti -deformation subassembly includes the hinge seat. The utility model passes through the vibration energy of first damping spring and second damping spring self -deformation absorption, significantly reduces the impact force of external force impact the utility model, realizes the buffer protection, avoids the loosening of continuous vibration, deformation or fatigue fracture, thereby guarantees the durability and safety of structure simultaneously, has optimized the stability of air cooler operation.

The invention relates to the technical field of strain measurement, and provides an MEMS strain measurement device under temperature shock, which comprises a damping bracket, a compensation module, a first measurement resistor, a second measurement resistor, an MEMS substrate to be measured, an automatic counterweight device, a temperature box and a measurement strain rosette, the damping support comprises a substrate, the measurement strain rosette is bonded to a to-be-measured MEMS substrate through layered heat preservation bonding and ultrasonic treatment and is sequentially connected with the compensation module, the first measurement resistor and the measurement resistor to form a ring, after the to-be-measured MEMS substrate, the compensation module, the first measurement resistor and the second measurement resistor are arranged on the substrate, the substrate extends into the temperature box, and the temperature box is connected with the measurement strain rosette. The assembly stress compensation module, the adhesive stress compensation module and the substrate bending stress compensation module are sequentially connected to form a compensation module; the automatic counterweight device comprises a control motor and a counterweight sliding block, and the counterweight sliding block is pushed and pulled through the control motor. According to the invention, the strain of the MEMS device can be effectively measured.