182 results about "Stepper motor control" patented technology

The utility model relates to a control device for a microwave anechoic chamber test system. Comprising a shielding box which is a sealed cavity provided with a cover plate, and the shielding box is provided with a power supply socket, a data socket and an optical fiber coupler; a control circuit board, an AC-DC power supply module, a data optical fiber transceiver and other modules are installed in the shielding box. A plurality of motor control units, a power supply interface and a communication interface are integrated on the control circuit board, and a first output end of the AC-DC power supply module is connected with the control board and is used for supplying power to the control board; one end of the data optical fiber transceiver is electrically connected with the optical fiber coupler, and the other end is electrically connected with the communication interface for converting the signal into an optical signal and outputting the optical signal. The control circuit board is placed in the shielding box, so that the size of the rotary table or antenna tower equipment is reduced, and the electromagnetic interference risk of a motor and a darkroom environment is reduced; the control circuit board integrates the servo motor control unit and the stepping motor control unit for modular design, serves as an independent unit of the darkroom test system, and is high in universality.

A control circuit of a timepiece motor (2), including a bipolar permanent magnet (6), a stator (4) defining two isthmi (12a &12b) and two rest positions for the rotor, and a coil (18) mounted on the stator. The control circuit can determine the position of the rotor at rest. An electric pulse generator (22) for detecting an external magnetic field formed by a circuits for: measuring the electrical current in the coil after an electrical pulse has been triggered, comparing the measured electrical current with a reference current, measuring the time allowing measuring a rise time between triggering of the electrical pulse and the next time the electrical current flowing in the coil reaches the reference current, and processing the rise time to be able to determine whether the measured rise time indicates the presence of a given external magnetic field passing through the two isthmi.

An apparatus and method for measuring a pressure profile of a gas inside a nozzle is provided. An apparatus (101) comprises:-a gas supply (103); -a proportional valve and a flow meter (105), which are connected to the gas supply (103); -a rotatable and movable measurement probe (107), which is connected to the pressure sensor (108); -a nozzle holder (109); -a stepping motor (111) which controls the displacement and rotation of the rotatable and movable measuring probe (107); a digital controller for controlling the stepping motor and the gas flow; data acquisition means; and a computer. The probe is measuring the pressure inside the nozzle, and the apparatus generates a 3D map of the pressure profile of the gas inside the nozzle.

The invention discloses a two-phase hybrid stepping motor control method and a corresponding motor control system. The method comprises the steps that according to expected displacement, starting point speed, terminal point speed, first acceleration and first deceleration, the maximum planning speed needing to be reached by displacement operation is planned and calculated, the moving trajectory of a stepping motor is planned, and the planned moving trajectory comprises an acceleration section trajectory and a deceleration section trajectory; according to the acceleration trajectory, controlling the stepping motor to accelerate from the starting point speed to the maximum planned speed at the first acceleration; and according to the deceleration section track, controlling the stepping motor to decelerate from the maximum planned speed to the end point speed at the first deceleration. According to the invention, acceleration and deceleration trajectory planning is carried out on the motion trajectory of the stepping motor according to the expected displacement, and motor operation control is carried out based on the acceleration and deceleration trajectory planning, thereby ensuring that the stepping motor rapidly and stably realizes accurate displacement under high-speed operation in the operation process.

The invention relates to the technical field of pressure control, and discloses a pressure control method, system and equipment for a vacuum butterfly valve and a storage medium, and the method comprises the steps: obtaining a pressure control error signal and an error change rate according to the internal pressure of a cavity and a preset target pressure; determining a calculation result of the composite controller based on the pressure control error signal and the error change rate; inputting a calculation result of the composite controller into a smooth switching function, calculating a mixed output quantity, and searching an optimal smooth factor and an error switching threshold value of the smooth switching function in a current environment through a particle swarm optimization algorithm; performing nonlinear compensation on the mixed output quantity of the composite controller by adopting a compensation function, converting the control quantity subjected to nonlinear compensation into the rotation step number of a stepping motor through motor driving, and controlling the rotation angle of the butterfly valve by adopting the stepping motor; the control precision and the dynamic performance are improved.

This application discloses an exoskeleton position prediction and closed-loop stepper control system and method. The microcontroller unit completes the functions of electromyography (EMG) signal acquisition, neural network inference, pulse generation, and closed-loop correction. The EMG signal acquisition unit acquires surface EMG signals, performs preprocessing and feature extraction, and outputs digital EMG features. The motor position feedback unit acquires the absolute position and velocity information of the closed-loop stepper motor in real time. The neural network operation unit concatenates the digital EMG features and the absolute position and velocity information of the closed-loop stepper motor into a multi-dimensional input vector to predict the three-dimensional spatial position increment of the exoskeleton at the next moment. The dual closed-loop control unit converts the predicted value of the three-dimensional spatial position increment into stepper motor control commands and performs closed-loop correction in combination with the real-time position of the motor. Zero-delay tracking control is achieved through a predictive-execution parallel pipeline, realizing high-precision, low-delay tracking of exoskeleton movement and achieving high system integration and lightweight design.

According to the technical scheme, the automatic grading equipment suitable for the poultry comprises a support assembly, the support assembly comprises a plurality of sectional materials, movable hinges and three-way connecting pieces, the sectional materials are fixedly connected through the three-way connecting pieces to form a support body, the heights of the two sides of the support body are different, and the movable hinges are arranged on the movable hinges. The end face of the vertically-placed section bar and the groove face of the horizontally-placed section bar are connected through a plurality of movable hinges at the lower end of the support body, an inclined bottom plate is fixed to the section bar, and a first side plate and a second side plate which are close to the poultry inlet are arranged on the two sides in the section bar respectively. A first sliding way and a second sliding way are fixed to the two outer ends of the side, close to the poultry outlet, of the sectional material respectively, and an adjusting mechanism used for opening and closing the downward-sliding channel is further arranged on the side, close to the poultry outlet, of the sectional material. The baffle is controlled by the stepping motor to rotate by a certain angle, poultry channels of corresponding types are opened, the downward sliding direction of poultry is changed, and it is ensured that the poultry smoothly enters the correct level to complete grading work.

Embodiments described herein relate to an apparatus that includes a stepper motor, a driver chip communicatively coupled to the stepper motor, an encoder communicatively coupled to the stepper motor, and a feedback controller communicatively coupled to the driver chip and the encoder. In an embodiment, the feedback controller includes a state space plant configured to receive a control signal and generate a vector including a position and velocity of the stepper motor. In an embodiment, the feedback controller further includes a pulse width modulation (PWM) converter configured to receive the vector and output a first PWM signal corresponding to a number of steps to drive the stepper motor and a second PWM signal corresponding to a direction of the number of steps of the stepper motor. In an embodiment, the feedback controller further includes a Luenberger observer configured to receive a feedback signal from the encoder.

The invention discloses a multi-path stepping motor control device and method, and relates to the field of motor control, and the device comprises a microcontroller and an FPGA chip. The microcontroller is connected with the FPGA chip; the microcontroller is used for checking whether multi-path trapezoidal acceleration and deceleration curve parameters which are input by a user and represent the motion of the stepping motor accord with the motion characteristics of the stepping motor; if the trapezoidal acceleration and deceleration curve parameters do not conform to the motion characteristics of the stepping motor, the trapezoidal acceleration and deceleration curve parameters are corrected and serve as final trapezoidal acceleration and deceleration curve parameters; if the motion characteristics of the stepping motor are met, the parameters of the trapezoidal acceleration and deceleration curve are kept unchanged and serve as final parameters of the trapezoidal acceleration and deceleration curve; the final trapezoidal acceleration and deceleration curve parameters are sent to the FPGA chip; the FPGA chip is used for generating multiple paths of pulse signals in parallel according to the final trapezoidal acceleration and deceleration curve parameters so as to drive multiple paths of stepping motors, and motor control which is simple, feasible, high in real-time performance, more efficient and low in cost is achieved.

The invention discloses a gas specific heat ratio measuring device and a gas specific heat ratio measuring method, particularly relates to the technical field of gas specific heat ratio measurement, and solves the technical problems of low measuring precision, inconvenience in operation, poor safety and narrow application range of a traditional gas specific heat ratio measuring experimental device in the prior art. According to the technical scheme, an air pressure sensor measures changes of air pressure and temperature in a bottle, and data can be displayed in real time by being connected with a computer; by optimizing sensor design and a signal processing algorithm, the measuring device can respond to air temperature and pressure changes more quickly; the stepping motor is used for controlling opening and closing of the piston, and errors caused by human factors are reduced; the change of the air specific heat ratio at different temperatures can be explored by changing the temperature; according to the invention, intelligent and automatic measurement is realized, errors caused by manual operation are reduced, and data change visualization in the whole experiment process is provided, so that students can intuitively analyze the change of each physical quantity.

The invention discloses a concrete beam quick release mold and a using method thereof, and belongs to the technical field of concrete beam molds, the concrete beam quick release mold comprises a bottom plate, a supporting plate, a first mold assembly and a second mold assembly, the supporting plate is fixedly mounted in the middle of the top end of the bottom plate, and a bottom mold plate is fixedly mounted at the top end of the supporting plate; first supports are fixedly mounted on the outer walls of the left side and the right side of the supporting plate correspondingly, and a first mold assembly is mounted on each first support. Second supports are fixedly installed on the outer walls of the front side and the rear side of the supporting plate correspondingly, and a second mold assembly is installed on each set of second supports. A servo stepping motor is started to control a worm to rotate, a worm gear meshed with the worm can drive a mounting shaft, a second bevel gear, a second transverse shaft and a second side formwork to rotate and open, the two first side formworks and the two second side formworks are controlled to synchronously rotate to be in a horizontal state, rapid demolding of a formed concrete beam is facilitated, disassembly is rapid, and the efficiency is high. The use is convenient, and the production and manufacturing efficiency of concrete beams can be improved.

The invention consists of controlling the direction and opening of a hydraulic distributor with a stepper motor acting on it via a reversible transmission. This economical and reliable solution allows for precise positioning of the distributor spool during normal operation, and a return to the neutral position under the action of the return spring(s) in the event of a power failure. Figure 8 (for the abstract)

Provided is a stepping motor control device that prevents a terminal voltage of a battery from decreasing even when a plurality of motors are driven simultaneously at a high speed. The stepping motor control device includes: a control unit configured to control a driving unit that drives a plurality of motors including a first motor driven at a prescribed driving cycle, and a second motor driven at a driving cycle that is the same as or an integral multiple of the driving cycle of the first motor to drive the motors by outputting a driving pulse; and a storage unit configured to store a width of the first driving pulse and a width of the second driving pulse. When a sum of a pulse width of the first driving pulse and a pulse width of the second driving pulse is longer than the driving cycle of the first motor, in the driving cycle of the first motor, a part of the first driving pulse and at least a part of the second driving pulse are simultaneously output, and a pause period is provided, in which neither the first driving pulse nor the second driving pulse is output after the first driving pulse and the second driving pulse are output and before a start timing of a next driving cycle of the first motor.

The utility model relates to the technical field of motors, and particularly discloses a motor based on a Hall sensor and a trigger, which is rigorous and scientific in design, reasonable in hardware structure and configuration and simple in circuit, saves I / O (Input / Output) port resources of an MCU (Microprogrammed Control Unit), and comprises the MCU, a stepping motor, a stepping motor controller and the Hall sensor. A Hall sensor is arranged in a transmission mechanism of the stepping motor, the MCU is in circuit connection with the stepping motor controller, the stepping motor controller is in circuit connection with the stepping motor, the stepping motor is in electric signal connection with the Hall sensor, the Hall sensor is connected with the MCU, and the MCU is connected with the MCU. A corresponding method is adopted to effectively control the motor in real time, the failure rate is low, the function is safe and reliable, and the working efficiency is high.

The present application relates to soil erosion monitoring technology, and is a soil erosion quantitative monitoring device and method for production construction projects. The device comprises a controller, a main support and a foot cup fixing frame. The main support comprises a top support, a vertical support and a "H" shaped support, which is installed on a ditch or a channel through the "H" shaped support and the foot cup fixing frame. The top support is connected to the upper part of the vertical support. The vertical support is slotted to form a wire track, and a lead screw is arranged on the wire track. A stepper motor and a front fixed plate are installed on the upper part of the lead screw, and a sliding block is installed on the lead screw. A motor support is fixed on the sliding block, and a deceleration stepper motor is fixed on the motor support. A suspension rod is hung on the motor support, and a turbidity sensor is installed on the rod. The controller controls the suspension height of the rod through the stepper motor, and controls the rotation of the rod through the deceleration stepper motor when there is an obstacle in the channel where the monitoring device works. The present application is suitable for different sizes of drainage channels, and improves the efficiency and accuracy of soil erosion quantitative monitoring of production construction projects.

The utility model discloses a dynamic down waterproof performance display device which comprises an upper box body, a display cylinder and a lower box body, the display cylinder is fixed between the upper box body and the lower box body, the display cylinder comprises a display cylinder inner box, a fixing frame, at least two display containers, a clamp and a control device, the display cylinder inner box is arranged on the back face of the fixing frame, and the display containers are arranged in the display cylinder inner box. The control device is arranged in the display cylinder inner box, the display container is clamped by a clamp, the control device comprises a worm gear reducer, a controller and a stepping motor, and the controller is used for controlling the stepping motor; the worm gear reducer is driven by the stepping motor to rotate the clamp, so that the display container rotates or swings, the down feather in the container is further mixed with water, full contact between the down feather and the water is simulated, and the waterproof performance of the down feather is displayed. The utility model provides an electrically-driven display device which is convenient to use and obvious in display effect so as to improve the waterproof performance display effect of down feather and is convenient to operate and use.

The invention discloses a stepping motor control system and a liquid flow rate automatic regulation and control system, and the control system comprises a main power supply control unit which has an active power supply management function, is equipped with an independent auxiliary power supply, and has a signal monitoring function in a standby stage of the system; when the main power supply control unit detects an effective control signal, the main power supply is switched on, and a switch is triggered to act in advance for preset time so as to compensate mechanical delay; the power supply unit is connected with a power grid through the main power supply control unit and provides a power supply for subsequent units; the electric pulse generation unit is used for generating a modulatable stepping control pulse signal; and the stepping motor driving board unit is used for converting the stepping control pulse signal and driving the stepping motor to rotate, so that the main body of the stepping motor outputs torque. According to the control system provided by the invention, the stepping motor driving unit and the intelligent power supply management module are creatively integrated, and accurate time sequence cooperation of the electromechanical system is realized through a cooperative regulation and control mechanism.

The utility model relates to the field of metallurgical machinery automation, in particular to an automatic feeding device of a steel coil uncoiler, which comprises an uncoiler, a rotating plate and the like, a feeding trolley is slidably connected to the front end of the uncoiler, an electric push rod is mounted in the middle of the feeding trolley, a piston rod of the electric push rod is connected with a fixed seat, and a stepping motor is mounted on the right side of the fixed seat. An output shaft of the stepping motor penetrates through the fixing base, one end of the rotating plate is connected with the output shaft of the stepping motor, the other end of the rotating plate is connected with a triangular plate, pressure sensors are installed on slopes on the two sides of the triangular plate and are in extrusion fit with the hollow outer ring of the steel coil, and a limiting assembly used for pushing the steel coil to move towards the middle is arranged in the middle of the feeding trolley. The electric push rod drives the fixing base to move front and back, the rotating plate is controlled by the stepping motor to rotate, the pressure sensor on the triangular plate can accurately detect the position of the inner wall of the steel coil, and automatic centering and positioning of the steel coil are achieved through meshing transmission of the double-end gear rod, the first rack and the second rack.

This utility model belongs to the field of sewing machine technology, specifically relating to a motor-driven mechanism for a switcher oscillation and a sewing machine. It uses a stepper motor to control the setting of the oscillation angle and interaction value of the switcher in the inner and outer presser foot interaction mechanism, cooperating with a control system to achieve digital management of the interaction. This utility model includes a stepper motor, which drives a cam-linkage mechanism to cause the switcher to reciprocate. The switcher drives a presser foot interaction adjustment mechanism to achieve the height difference between the alternating lifting and lowering of the outer and inner presser feet. The cam-linkage mechanism includes a cam, driven by a stepper motor. A rectangular block is provided on the side of the cam link, and the working surface of the cam mates with the F-surface of the rectangular block, allowing precise control of the cam link's movement trajectory. A through hole is provided on the connecting lug, and a crank is connected to the through hole via a connecting pin. The cam link drives the crank to reciprocate.

The present application relates to a kind of infrared optical transfer function measuring instrument target wheel switching positioning device and method, wherein there are nested rotary mechanism, V-shaped groove elastic positioning structure, photoelectric switch and the target wheel component of step motor combination control, realize target and filter accurate switching, positioning function;The switching positioning device is applied to the target wheel in the target generator of infrared optical transfer function measuring instrument, and the rotation switching and accurate positioning of target and filter therein are realized, and switching positioning device includes support, rotation switching mechanism, positioning mechanism and control circuit module, the support is integrated structure support, and the rotation switching mechanism and positioning mechanism in it are all assembled in the positioning structure of support.The target wheel switching positioning device of the present application adopts photoelectric light and step motor control mode, and combines nested rotary mechanism and V-shaped groove elastic positioning structure simultaneously, to ensure the high-precision electrical control of the structure of target and filter in the process of rotation switching.

The utility model provides an automatic tray placing mechanism and a transplanter. The tray placing mechanism comprises a structural frame, a stepping motor, a conveying chain, a conveying supporting plate and a chain wheel, the stepping motor is arranged at the top of the structural frame; the chain wheel is arranged on one side of the structural frame, the chain wheel is connected with the stepping motor, and the conveying chain is arranged on the outer side of the chain wheel in a winding mode, meshed with the chain wheel and arranged on one side of the structural frame in the vertical direction of the structural frame; the conveying supporting plate is fixedly arranged on the conveying chain; the stepping motor drives the chain wheel to achieve movement of the conveying chain, and conveying of the seedling raising plates on the conveying chain is achieved. According to the automatic tray placing mechanism, manual tray placing is not needed, the stepping motor controls the chain wheel and the chain to achieve automatic conveying of the seedling raising trays, manpower is saved, meanwhile, the trays can be placed on time, and the efficiency of the transplanter is improved.

A stepper motor control method and related control circuitry (for example, an FPGA) to control the acceleration and / or deceleration of the stepper motor movement to reduce system vibration. Acceleration and deceleration are implemented by adjusting the stepper motor period (the time between consecutive stepper motor position) based on the distance from the start or to the end position. The closer to the start or end position, the longer the period employed. In the middle range of its travel, the motor speed is constant and the stepper motor period is the shortest. The stepper motor period is always a nominal period multiplied by a factor of 2{circumflex over ( )}n, where n is zero or a positive integer. The resulting motor position vs. time curve is an approximated S-curve. The acceleration and deceleration control minimizes mechanically induced vibrations, while reducing implementation complexity and demand on FPGA resources.

The utility model discloses a computer wire stripping machine of convenient feeding relates to wire stripping equipment technical field. A computer wire stripping machine of convenient feeding, including computer wire stripping machine main part and fixed base, and the fixed base is located computer wire stripping machine main part's feeding direction, wire roll feeding structure, and wire roll feeding structure is located fixed base, and wire roll feeding structure includes support frame, rotatory disc, gear ring, gear and stepping motor, and support frame fixedly connected at the top of fixed base, and rotatory disc rotatoryly connected in the inside of support frame, through setting four material roll placement roller on rotatory disc, can install four wire rolls simultaneously, when needing to replace wire roll, only need to through stepping motor control rotatory disc rotation, can fast switching required wire roll to feeding position, simultaneously, and the baffle disc is connected through the thread hole of screw column and material roll placement roller, makes wire roll's installation and disassembly convenient and fast, thereby shortens the feeding time, and improved production efficiency.

This invention discloses a multi-channel stepper motor control method and medium based on time compensation. The MCU sets the speed through the system and uses a software algorithm to calculate the time required to generate the stepper motor speed pulses. During acceleration / deceleration, a time compensation algorithm is used. If the stepper motor pulse generation time and the timer trigger time do not match, the error between the previous pulse generation time and the timer trigger time is compensated into the second pulse generation time, and so on, until the error time between pulses is finally compensated into the last pulse, reducing the error time of each pulse. During the constant speed phase, the time compensation algorithm is used again. If the stepper motor pulse generation time and the timer trigger time do not match, the pulse generation time and the timer trigger time within a certain segment are divided into two parts. The pulse generation time of the first part is less than the calculated pulse generation time, and the pulse generation time of the second part is greater than the calculated pulse generation time, ensuring that the total time remains constant.

The invention is suitable for the technical field of aerospace scanning stepping motor control, and provides a method and a device for measuring the overall on-orbit self-adaptive minimum starting torque of an aerospace motor, a storage medium and a processor, and the measurement method optimizes the overall on-orbit self-adaptive minimum starting torque measurement of the aerospace motor based on a Q algorithm. And through collaborative design of discretized parameters and multi-dimensional reward / penalty terms, the adaptation problem of a traditional Q algorithm in a motor parameter measurement scene is solved. According to the method, the minimum starting current meeting the error requirement can be rapidly measured in real time, measurement can be implemented in the normal operation state of the motor, the minimum starting current of the whole machine is determined according to the estimated current when the error is minimum, and then the minimum starting torque of the whole machine is obtained through calculation. Compared with the prior art, the estimated value is more accurate, and the method is suitable for any environment and scene in which the motor can be operated. The device adopting the method, the storage medium storing the method and the processor running the method also have the same technical effects.

The utility model belongs to the technical scheme of electronic circuits, and particularly relates to a fan lamp control system integrating LED driving and wind direction control. The main control MCU receives the AC-DC voltage conversion circuit and the RF remote control receiving circuit, the main control MCU sends signals to the electric power inversion control circuit, the DC-DC BOOST circuit, the stepping motor control circuit and the buzzer driving circuit, and the AC-DC voltage conversion circuit sends signals to the electric power inversion control circuit, the stepping motor control circuit and the DC-DC BOOST circuit respectively. The utility model is used for solving the problems that in the prior art, the output voltage is high, each composition circuit is independent and separated and is connected and assembled through a lead, the material and production cost is high, and the compatibility is poor.

This application discloses a control method for a stepper motor used in air conditioning, a refrigeration control method for an air conditioner, and an air conditioner, belonging to the field of electrical equipment control. The control method for the stepper motor includes acquiring operating parameters of target devices within the air conditioner, wherein the target devices include those that positively influence the formation of condensation in the air conditioner; if the operating parameters meet preset condensation formation conditions, the stepper motor is powered on and locked, wherein when the stepper motor is locked, its rotor is stationary. This application embodiment has the technical effect of controlling the stepper motor to power on and lock when the operating parameters meet the condensation formation conditions. The powered-on and locked stepper motor generates its own heat, increasing its temperature and making it less prone to condensation, thereby protecting the stepper motor and preventing safety issues.

The present application belongs to the technical field of experimental devices, and proposes a real-time monitoring test device for basic local scour based on acoustic principle, which comprises a glass fiber column, a sand surface, an acoustic detector, a rotating mechanical device and a programmed stepping motor. The lower part of the glass fiber column is buried in the sand surface and is perpendicular to it. The acoustic detector is fixed by the C-shaped half-open buckle of the mechanical rotating device. The mechanical device is connected by a sleeve, a bearing, a U-shaped sheet, an I-shaped rod and a bent rod. The rotating angle and speed of the stepping motor control device are controlled. The present application uses acoustic detection principle to monitor the dynamic process of basic local scour in real time, and has high precision, high sensitivity and strong environmental adaptability. Combined with deep learning technology, the present application can realize scour data fusion and rapid prediction, and provides an intelligent solution for bridge foundation scour monitoring, and promotes the intelligent development of infrastructure monitoring technology.

A stepping motor control system and a stepping motor are provided. The stepping motor control system includes a control circuit (1) for outputting a command signal, at least three isolation circuits (2) for receiving the command signal and performing photoelectric isolation transmission, and at least three driving circuits (3) including a power switch transistor (31) for connecting to the driving port of the stepping motor, receiving the command signal output by the photoelectric isolation circuit (2), driving the power switch transistor (31) to turn on and off according to the received command signal, and controlling the change in the level value of the driving port of the stepping motor by the power switch transistor (31), thereby improving interference resistance and stability in the control and driving process of the stepping motor.

This invention discloses a control circuit for a white light interferometric 3D sensor system, relating to the field of 3D sensor technology. It includes a power module, an ARM main control module, an input / output module, a network module, a camera trigger module, a stepper motor drive module, a laser LD drive module, and a grating ruler encoder receiving module. This invention employs an Arm + 50nm grating ruler decoding + 2µm stepper motor control + laser LD drive + high-speed trigger camera control system. This circuit eliminates the need for a professional motion control card, ultra-high precision, high-cost motion platform, servo / linear motors, etc. Through a self-implemented motion control algorithm within the ARM processor, it only requires a conventional stepper motor and high-precision grating ruler feedback to achieve the requirement of rapid nanometer-level position triggering for image acquisition. This also achieves miniaturization, low cost, and high precision in circuit board installation, reducing the requirements for process assembly.