508 results about "Deflection angle" patented technology

The invention discloses a leveling device and leveling equipment, relates to the technical field of mine blast hole environment detection, and aims to solve the technical problem that the accuracy of a detection result is affected as an existing hole environment detection device is easily in an inclined state during use. The leveling device comprises a base, an adjusting assembly, a mounting frame, a gradienter and a control module, wherein the adjusting assembly is connected with the base; the mounting frame is connected with the hole environment detection device, the gradienter is arranged on the mounting frame, and the mounting frame is in transmission connection with the adjusting assembly; the control module is electrically connected with the gradienter and the adjusting assembly. The leveling device is connected with the hole environment detection device through the mounting frame, the control module can automatically drive the adjusting assembly to adjust the space posture of the mounting frame according to the deflection angle data fed back by the gradienter, it is ensured that the mounting frame is always kept in the horizontal state, and the posture of the hole environment detection device is synchronously corrected; and the detection result accuracy of the hole environment detection device is improved.

The invention discloses an integrated galvanometer laser projection method and an integrated galvanometer laser control device. The integrated galvanometer laser projection method comprises the steps that 1, a control card stores various data in a classified mode; when an upper computer issues a system parameter instruction, a communication interface is automatically switched according to a communication mode of the upper computer, and instruction data is analyzed and stored in an EEPROM (Electrically Erasable Programmable Read-Only Memory); 2, after the upper computer issues an instruction, the control card cooperatively controls the on-off state of the laser light source and the deflection angle of the laser galvanometer, and the position and the focal length of the lens are adjusted; 3, positioning an instruction according to a target point of the upper computer; the control card cooperatively controls the laser and the galvanometer to coarsely position the center of the target; and performing fine positioning on the center of the target by taking the target point obtained by coarse positioning as an initial reference position. The integrated galvanometer laser control device has the advantages that the environmental adaptability, the control precision and the operation convenience of the integrated galvanometer laser control device are remarkably improved.

The invention relates to a dynamic measurement device for a deflection angle of a transmission shaft system based on a laser alignment and error separation technology. The dynamic measurement device mainly comprises a laser alignment module, an axis measurement module, a photoelectric detection module, a laser compensation module, a multi-channel signal acquisition card and a computer. The laser collimation module emits a collimated laser beam as a linear measurement reference, and the multiple axis measurement modules synchronously measure the dynamic axis tracks of the two transmission shafts in the rotation process. The photoelectric detection module is used for sequentially adjusting the poses of the measuring heads on all the axis measuring modules to be consistent, and the laser compensation module is used for compensating laser beam drift in real time so as to improve the laser alignment precision. And finally, fitting and calculating the dynamic deflection angle between the two sections of transmission shafts according to the axis trajectories of the plurality of sections. The three-point method error separation technology is adopted to separate the motion error and the section roundness error of the shaft, the dynamic measurement precision of the axis track is improved, and dynamic measurement of the deflection angle between any two sections of transmission shafts in a high-speed transmission system is achieved.

The invention relates to the technical field of virtual reality simulation training, in particular to a shooting simulation training method and system based on virtual reality, and the method comprises the steps that a virtual training space is constructed, and dynamic light and shadow and terrain disturbance variables are injected into a visual environment model; loading a physical attribute template by the trajectory simulation engine; and loading a standard attitude sequence into the instrument action library. In training, the system captures real-time posture, instrument operation and environment interaction data of a trainee, inputs the data into a trajectory simulation engine to generate a trajectory prediction data set containing a speed curve and a deflection angle, compares the trajectory prediction data set with a standard posture frame by frame, and generates an action analysis report. According to the method, the authenticity and adaptability of training are enhanced by simulating continuously changing environmental physical interference; through full-process trajectory simulation and action traceability, accurate evaluation and deviation correction guidance of shooting operation details are realized.

The invention discloses a pose detection device and method based on array type laser reflection focal spot monitoring, three collimation lasers are arranged in an array mode, an optical measurement method similar to an optical lever is adopted, when an optical element has height deviation, the positions of three light spots are equivalently changed on an imaging screen at the same time, and the position of the three light spots is detected. When the optical element has angle deviation, the distance of the light spots on the imaging screen is changed, and the change quantity is related to the laser incident angle, the light beam spacing distance and the element deflection angle, so that the light spot position image shot by the light spot imaging visual camera can be accurately positioned. And the pose information of the optical element located on the optical element positioning tool can be obtained through accurate inversion, so that accurate online detection of the angle and height information in the vertical plane of the optical element is achieved by bypassing a lateral view field, and then accurate grabbing of the optical element can be achieved in a matched mode.

The invention relates to an active gravity center adjustment control method for an advanced aircraft variant process, and the method comprises the steps: collecting the variant state information of an aircraft in real time, synchronously obtaining the flight state information, and obtaining an input vector; wherein the variant state information comprises a wing sweep angle, a span-chord ratio and a flap deflection angle, and the flight state information comprises an attack angle, a flight speed, a height, a pitch angle and an acceleration; according to the input vector, an initial pneumatic center position is calculated through a pneumatic center prediction function, and the pneumatic center position is determined according to the pneumatic center position variable quantity; calculating a target gravity center position according to the longitudinal static stability through the average pneumatic chord length of the aircraft and the pneumatic center position, and obtaining a target gravity center position adjustment amount; and adjusting the center of gravity of the aircraft to the target center-of-gravity position through a center-of-gravity adjustment executing mechanism. Active gravity center adjustment can be provided for the advanced aircraft variant process, attitude disturbance is restrained through information collection, pneumatic center calculation and the like, and flight safety is guaranteed.

The invention provides a workpiece correction method, device and equipment for laser cutting equipment and a medium. The correction method comprises the steps that a platform image of a workpiece located on a cutting platform is obtained; identifying position information of a preset mark point, a first mark point and a second mark point on the platform image; according to the position information of the first mark point and the second mark point, the deflection angle of the workpiece is calculated; according to the deflection angle, the position information of the first mark point or the second mark point and the position information of the preset mark point, the deflection displacement of the workpiece is calculated; and controlling the cutting platform to execute corresponding actions according to the deflection angle and the deflection displacement. By means of the workpiece correction method, device and equipment of the laser cutting equipment and the medium, the technical problem that the position of the workpiece is difficult to adjust accurately is solved.

The application provides a stirring knife assembly and a food processor. The stirring knife assembly comprises a rotating shaft, a driving section of the rotating shaft, a plurality of edges extending in the up-down direction, a plurality of edges deflecting in the circumferential direction of the driving section, and a plurality of edges deflecting in the opposite direction of the rotating direction of the rotating shaft from top to bottom; and a knife assembly detachably mounted on the rotating shaft, the knife assembly comprising a knife holder sleeved on the rotating shaft and a blade fixed on the knife holder, the knife holder and / or the blade being provided with a driving hole matched with the driving section, the driving hole comprising a plurality of edges deflecting in the circumferential direction of the driving hole; wherein the deflection direction of the plurality of edges is consistent with the deflection direction of the plurality of edges, and the deflection angle of the plurality of edges is smaller than the deflection angle of the plurality of edges. In this way, the stirring cup assembly no longer has a dead angle that cannot be cleaned, effectively avoiding the breeding of bacteria and the generation of odor.

This invention relates to the field of fast reflector technology, specifically to a two-dimensional large-angle fast reflector device based on a PCB eddy current sensor. The device includes: a flexible support assembly that enables the reflector assembly to deflect in a two-dimensional direction, and which, after angular displacement, returns to its original position through elastic deformation; and an eddy current sensor probe comprising multi-layer coils printed on an eddy current circuit board, with each pair of probes symmetrically arranged on the board. This invention, through the flexible support assembly and a moving-magnet drive structure, enables the reflector assembly to achieve large-angle deflection in two orthogonal directions. Compared to traditional micro-angle deflection structures, the maximum deflection angle is significantly increased, covering a wider field of view, making it suitable for applications such as large-field-of-view scanning, rapid target acquisition, and wide-angle beam control.

According to the deflection angle locking device of the steel rail grinding equipment, when the grinding device of the steel rail grinding equipment is adjusted to the target grinding angle relative to the frame of the steel rail grinding equipment, the deflection angle of a grinding system is locked. The deflection angle locking device comprises a power unit (1), a connecting unit (2), an angle locking unit (3) and a brake pad (4). When the grinding device is adjusted to a target grinding angle relative to a frame of the steel rail grinding equipment, the power unit (1) applies acting force to the angle locking unit (3) through the connecting unit (2) so as to push a friction plate (34) of the angle locking unit (3) to clamp a brake plate (4) in the middle from the two sides, and the deflection angle of the grinding device is locked by means of friction force between the friction plate (34) and the brake plate (4). According to the technical scheme, through the structural design of the deflection angle locking device, the stability of large-angle grinding can be improved, and the grinding precision is improved.

The utility model relates to micro - nanometer technical field discloses a kind of vertical comb tooth electrostatic biaxial MEMS micro-mirror structure, comprising: first device structure layer, connecting layer, second device structure layer are stacked from bottom to top;First device structure layer includes first fixed comb tooth and second fixed comb tooth;Second device structure layer includes galvanometer frame and its two sides first torsion beam;First movable comb tooth is provided on first torsion beam;Galvanometer frame is annular;Galvanometer frame inside is provided with mirror body and its two sides second torsion beam;Second movable comb tooth is provided on second torsion beam;First torsion beam, galvanometer frame and second torsion beam are integral structure and electrically connected;First fixed comb tooth and first movable comb tooth are misaligned and correspond to set, second fixed comb tooth and second movable comb tooth are misaligned and correspond to set.The utility model can increase driving force and deflection angle, and then increase operating frequency and scanning angle, while reducing excitation response time.

A control system includes a movable device, memory, and circuitry. The movable device includes a reflector; paired movable portion; and a detector to detect deflection angle of the reflector. The circuitry outputs drive signals to the paired movable portions, respectively; generates the drive signals based on variables of a symmetry of each of the drive signals and a phase difference between the drive signals; detects, from the movable device, the deflection angle of the reflector by the detector; extract an amplitude of a high-frequency component from a detection signal; store, in the memory, information in which the amplitude of the high-frequency component is associated with values of the variables of the drive signals; select a combination of the values of the variables based on the high-frequency component and the information stored in the memory; and update the drive signals based on the combination of the values of the variables selected.

The invention discloses an interference correction method and system for a large-angle-of-attack device half-column far-field support, and relates to the field of wind tunnel data processing, and the method comprises the steps: employing an X axis to represent an airflow direction, employing a Y axis to represent an upward direction, employing a Z axis to accord with a right hand system, taking a half column as a finite-length vertical line source passing through the rotation center of an angle-of-attack head, establishing a mathematical model of a finite-length vertical linear source pair model area in an integral form according to an induced velocity basic formula of the linear source micro-segment pair model area; configuring semi-column characteristic parameters, position parameters and model geometric parameters of the mathematical model; calculating the actual wind speed and the airflow deflection angle after the model point is disturbed by the finite-length vertical line source according to the semi-upright characteristic parameters, the position parameters and the model geometric parameters; aerodynamic characteristics are corrected according to the actual wind speed and the airflow deflection angle. By combining the device and the model characteristic parameters, the interference of the semi-stand column can be corrected in real time in the test process, the accuracy of test data is further improved, and the engineering practicability is met.

The application provides a frozen and thawed rock stratum blasting hole dynamic optimization drilling method, rock mass vibration is excited, vertical direction vibration data of an undrilled hole area on the ground and axial vibration data of a drilled hole area are collected, and a multi-source vibration data set is constructed; based on the data set, a rock mass structure characteristic reconstruction algorithm is applied to dynamically represent internal defect distribution and structure strength parameters, three-dimensional space coordinates of a subsequent to-be-drilled hole position and optimal drilling path instructions are generated, and the instructions are issued to a drilling control system; data of a positioning module and a navigation module are fused to monitor a drilling tool pose, a three-dimensional motion trajectory is constructed, an optimal obstacle avoidance path is dynamically planned according to the instructions, a drilling pose adjustment strategy containing a drill rod flexural deformation compensation amount is generated, and the drilling pose adjustment strategy is output to an adaptive trajectory adjustment mechanism; the drilling tool is driven to drill along the obstacle avoidance path, the mechanism is used for real-time regulation and control of a drilling trajectory deflection angle and a feed rate, the drilling tool motion trajectory is ensured to dynamically coincide with the target path, drilling precision is improved, and the risk of drilling tool jamming is reduced.

The invention provides a high-flux large-volume optical tomography system and method, and the system comprises a spatial light modulator which is used for carrying out the wavefront modulation of an incident laser beam, and generating an illumination light beam; a scanning device for generating an illumination light sheet based on the illumination beam; the sCMOS camera is used for detecting signals; the sample table is used for bearing and driving a sample to move; the synchronous control module is configured to control the spatial light modulator to dynamically load a composite phase pattern, and the composite phase pattern is formed by superposition of a depth-of-field phase component used for generating an extended depth-of-field light beam, a blazed grating phase component used for concentrating energy to first-level light and a lens phase component used for controlling a light beam focus to perform axial scanning; the synchronous control module is further configured to synchronously control the refreshing of the composite phase pattern and the deflection angle of the scanning device so as to acquire a three-dimensional image view field block through pure optical scanning during the stationary period of the sample stage. According to the invention, the imaging flux is greatly improved.

The application discloses an air acoustic imaging sensor, comprising: a deflection device, comprising a mounting seat, a first deformation member and a fixed seat, two ends of the first deformation member being connected with the mounting seat and the fixed seat respectively; an air acoustic imaging sensing device, being installed on the fixed seat; and a driving device, being installed on the deflection device, the driving device being used for driving the first deformation member to deform, so that the air acoustic imaging sensing device installed on the fixed seat deflects. The air acoustic imaging sensor of the embodiment of the application drives the first deformation member to deform through the driving device, so that the air acoustic imaging sensing device installed on the fixed seat deflects, thereby achieving the function of adjusting the deflection angle of the air acoustic imaging sensing device. The air acoustic imaging sensor realizes dynamic scanning imaging. Compared with the existing structure of driving the transducer to deflect, the air acoustic imaging sensor of the application has the advantages of small overall volume, high integration, small space range occupied in the movement process and low cost.

The invention discloses a purline lateral displacement detection device, and relates to the field of purline detection. The clamping mechanism comprises a plurality of containing frames arranged in the width direction of the supporting frame at intervals, the two ends of each containing frame are rotationally installed on the supporting frame, a through part is arranged at the bottom of each containing frame, a sliding plate moving in the length direction of each through part is arranged in each through part, and supporting plates are detachably arranged at one end of each sliding plate and one end of each containing frame and used for being connected with a purline. Limiting plates moving in the width direction of the containing frame are arranged on the two sides of the containing frame and used for limiting the side edges of the purlins. The pressure applying mechanism comprises a plurality of top frames which are located above the containing frame and coaxially and rotationally arranged, a plurality of first linear mechanisms moving in the length direction of the top frames are arranged on the top frames, the moving direction of the moving ends of the first linear mechanisms is perpendicular to the rotating axis of the top frames, and the moving ends are provided with pressing blocks used for applying pressure to the purlins in the side direction. The purlines with different deflection angles can be loaded and detected, and the detection accuracy is ensured while the tool cost is reduced.

The utility model discloses a multi-ball-joint joint, a supporting arm and a fixing device. The multi-ball-joint joint comprises a joint frame capable of adjusting clamping force, a first ball and a second ball, the first ball and the second ball are rotationally arranged in the joint frame, and the first ball and the second ball are fixedly connected with a connecting shaft and a connecting sleeve respectively. The single multi-ball-joint joint provided by the utility model has adjustable static supporting force and six degrees of freedom including axial rotation and radial deflection, and can meet the requirements of multi-angle and multi-direction adjustment. Meanwhile, the double-ball-joint structure is adopted, various deflection schemes can be allowed to be achieved at the same deflection angle, and the diversity of angle-adjustable implementation schemes is further improved.

This invention relates to a design method for reinforcing rock mass structures with small-diameter piles under post-load conditions in the field of slope protection. The method first obtains the inclination angle θ of the outward-dipping structural surface, the internal friction angle and cohesion c, the sliding mass weight γ, the sliding mass height H, the stress ratio n between the pile and the rock mass at the structural surface, the vertical load q applied to the upper part of the sliding mass after the construction of a single deeply embedded small-diameter anti-slide pile, the sliding mass width b, and the horizontal extension length l. Then, using these parameters, it calculates the initial axial force of the deeply embedded small-diameter anti-slide pile before sliding, the deflection angle of the deeply embedded small-diameter anti-slide pile when the anti-slide force is at its maximum, the minimum compressive stiffness of the small-diameter anti-slide pile, and the axial force and anchorage length of the deeply embedded small-diameter anti-slide pile caused by compression after minor deflection deformation at the structural surface. This invention saves resources compared to empirical design methods.

The application discloses a laser communication link correction method, system, device, medium and product based on wavelet interpolation, relates to the field of optical communication, and comprises the following steps: performing stationary wavelet transform and discrete wavelet transform on a light spot image respectively to obtain stationary subband coefficients and discrete subband coefficients; correcting the discrete high-frequency subband coefficients after interpolation processing by using the stationary high-frequency subband coefficients to obtain corrected discrete high-frequency subband coefficients; replacing the discrete low-frequency subband coefficients with the coefficients of the expanded light spot image to obtain replaced discrete low-frequency subband coefficients; through inverse discrete wavelet transform, the centroid method is used again to calculate the centroid coordinates of the light spot image after wavelet interpolation processing and the deflection angle of the beacon light, the deflection angle of the receiving end is adjusted according to the deflection angle of the beacon light, and the correction of the laser communication link is completed; and the stability of the laser communication link can be improved by improving the subdivision accuracy of the light spot.

The utility model discloses a tank cover appearance defect inspection machine based on machine vision, which comprises a shell and an adjustable detection mechanism, the upper end of the interior of the shell is provided with a mounting plate, the middle of the interior of the mounting plate is slidably connected with sliding columns, the lower ends of the two sliding columns are fixedly connected with the upper end of a mounting block, and the upper end of the mounting block is fixedly connected with the upper end of the adjustable detection mechanism. The adjustable detection mechanism comprises a worm, worm gears, connecting rods, first gears and second gears, the worm is rotationally connected to the center in the mounting block, the worm gears are rotationally connected to the middles of the left side and the right side in the mounting block respectively, the worm is in meshed connection with the worm gears, the connecting rods are rotationally connected to the left end and the right end in the mounting block respectively, and the first gears are arranged on the front sides of the connecting rods; the tank cover appearance defect inspection machine based on machine vision is provided with the adjustable detection mechanism, the height and the deflection angle of the CCD camera can be rapidly and automatically adjusted, the detection range is enlarged, and the detection efficiency is improved.

The utility model belongs to the technical field of cutters, and discloses an end mill, which is characterized in that bottom blades are distributed on a revolution surface formed by rotation of a 1 / 4 ellipse around a central axis of a cutting part, so that a tool cutting edge angle is gradually and slowly increased in the direction from the center of the end mill to the periphery of the end mill, and one end, connected with a circumferential blade, of each bottom blade can also be used for cutting. And under the same cutting depth, cuttings become thinner and longer, and the thinning cutting effect is better during fast feeding, so that the machining efficiency of difficult-to-machine materials such as titanium alloy and high-temperature alloy is improved. The end, connected with the circumferential edge, of the bottom edge is used for increasing the maximum cutting depth after cutting, and the front angle corresponding to the bottom edge is gradually increased in the radial direction, away from the central axis of the cutting part, of the cutting part, so that the end, close to the circumferential edge, of the bottom edge is sharper, cutting resistance is reduced, cutting force and cutting heat are reduced, and the wear resistance of the cutter is improved; and the service life of the cutter is prolonged.

The utility model relates to the technical field of detection jigs, and discloses an acquisition detection jig, which comprises a jig table, and an adjusting mechanism comprises an adjusting frame arranged on the surface of an observation plate; the adjusting block is clamped on the outer side of the adjusting frame in a sliding manner; the adjusting plate is mounted above the adjusting block; the moving block is connected to the surface of the adjusting plate; and the moving plate is slidably connected to the surface of the moving block, the detection head is of a detachable structure, and a data acquisition module and a signal detection module are arranged in the detection head. By observing and comparing the corresponding deflection angles on the adjusting plate and the observation plate, the adjusting angle of the adjusting plate can be obtained, the angle adjustment of the detection head can be realized, and the problems that the position of the detection head of the existing detection equipment is fixed, a multi-dimensional adjusting mechanism is lacked, and the accurate alignment of the horizontal position and the angle of the detection head is difficult to realize are solved.

The application discloses a positioning system error testing method, and belongs to the technical field of positioning. The method comprises the following steps: determining the coordinate systems of a measured system and a positioning reference system, and the positions of a test target point and a measured target point on a carrier; controlling linear motion of the carrier, and calculating a deflection angle between the two coordinate systems through a plurality of coordinate points of the test target point and the measured target point on a track of the linear motion; controlling rotation and linear motion of the carrier, acquiring a plurality of coordinate points of the test target point and the measured target point on a linear motion track after each rotation before the rotation, and an included angle between a longitudinal axis of the carrier and a coordinate axis of the measured system; and calculating errors of the measured system at each measurement point based on a preset relationship between positioning errors and distances between the two target points. The application has low requirements on the test target point and the measured target point in the testing process, can simplify coordinate system conversion calculation, and improves the accuracy of a positioning precision test result.

This application discloses a chamfering device for cable tray production, comprising: a base, an angle adjustment mechanism for adjusting the angle of a mounting seat on the top of the base, the angle adjustment mechanism including an adjustment seat mounted on the upper surface of the base and located on the back of the mounting seat, and a motor on the top of the adjustment seat, the output end of the motor being provided with a lead screw, the lead screw passing through a cavity extending into the interior of the adjustment seat, and an adjustment plate being driven on the outer wall of the lead screw within the cavity, with drive seats at both ends of the adjustment plate. The chamfering device disclosed in this application can change the inclination of the grinding head by adjusting the deflection angle of the mounting seat, allowing the grinding head to cut and chamfer the cable tray from different angles, avoiding the need for continuous adjustment of the cable tray position to cut different angles, saving time and labor, and is suitable for processing different types of cable trays, with strong practicality.

The invention relates to the technical field of projectors, and discloses a picture calibration method and device, a projector and a medium. The method comprises the following steps: acquiring attitude angle information and positioning and orientation information of a projection lens; the positioning and orientation information represents distances and directions of the projection lens relative to at least three non-collinear reference points in a projection plane; determining three-dimensional included angle information between the projection plane and the optical axis of the projection lens based on the attitude angle information and the positioning and orientation information; performing angle calculation on the LCD screen based on the three-dimensional included angle information so as to calculate a target pitch angle value and a target deflection angle value which the LCD screen needs to reach; and driving the screen adjusting component to adjust the angle of the LCD screen by taking the pitch angle and the deflection angle of the LCD screen respectively reaching the target pitch angle value and the target deflection angle value. According to the embodiment of the invention, the projection picture quality of the single-chip LCD projector during side projection can be improved.

The application discloses a visual positioning control method based on a label pattern, which comprises the following steps: step A, a robot pre-processes an image collected by a camera thereof, and searches for graphical attributes and vertices of a label pattern in the pre-processed image; step B, based on the graphical attributes and the vertices of the label pattern, the monocular ranging principle is used to calculate the distance between the label pattern and the camera and the deflection angle of the label pattern relative to the camera; step C, whether the distance between the label pattern and the camera and the deflection angle of the label pattern relative to the camera both satisfy a preset positioning condition is judged, if yes, it is determined that the visual positioning of a device to be positioned is completed, otherwise, step D is executed; and step D, according to the distance between the label pattern and the camera and the deflection angle of the label pattern relative to the camera, the robot moves to a predicted position point, then an image of the label pattern is collected by using the camera, and then steps A to C are executed.

This invention belongs to the field of welding-related technology, specifically providing a magnetically controlled assisted welding dynamic alignment method and system. The system includes: a magnetic control device, an infrared temperature measuring device, a motor, and a control system. The magnetic control device is mounted on the welding torch, and the infrared temperature measuring device is mounted on the magnetic control device. The infrared temperature measuring device includes a reciprocating infrared temperature sensor for real-time acquisition of the temperature on both sides of the molten pool. The motor drives the magnetic control device to rotate and adjust its position along the welding torch axis. The control system processes the temperature data in real time, calculates the deflection angle, and outputs a motor control signal. This invention can ensure the relative position of the magnetic field and the welding trajectory during complex path welding, thereby guaranteeing welding performance and quality under the assistance of the magnetic control device.

The application relates to a minimum deviation angle determination method and device, computer equipment and a readable storage medium. The method comprises the following steps: obtaining a minimum deviation angle corresponding to a current rotation round and a target rotation angle of a to-be-tested sample, rotating a sample table where the to-be-tested sample is located to a position of the target rotation angle, rotating an angle detector associated with the to-be-tested sample to a position of the minimum deviation angle, and obtaining an angle deviation value between incident light, refracted light of the to-be-tested sample and the rotated angle detector; in a case where the angle deviation value is not 0, updating the minimum deviation angle and the target rotation angle according to a top angle of the to-be-tested sample, a reference angle, the target rotation angle, the minimum deviation angle and the angle deviation value, and returning to rotate the angle rotator and the sample table again until the angle deviation value is 0, and finally obtaining a final minimum deviation angle. The method improves the accuracy of the determined minimum deviation angle.

The invention relates to the technical field of aerodynamics, in particular to a precise regulation and control method for unsteady aerodynamic force of a continuously and rapidly deformed wing, and the method comprises the following steps: simulating the wing under various working conditions by using CFD software, and collecting simulation results to construct a working condition data set; performing double-model cooperative training on the ARX model and the PI hysteresis model based on the working condition data set; inputting the target lift coefficient into the trained PI inverse model to obtain a corrected deflection angle; and correcting the corrected deflection angle through an ARX model to obtain a final corrected deflection angle.