49results about How to "Achieve calibration" patented technology

The application relates to a navigation tool calibration method, device and storage medium for surgical navigation, and relates to the technical field of medical treatment. The method comprises the following steps: acquiring a first image, the first image being obtained by image acquisition equipment when the vertex of a navigation rod is in contact with a target positioning point on a second tracking tool; acquiring a first transformation matrix and a second transformation matrix based on the first image, the coordinates of at least three first positioning points in a first coordinate system and the coordinates of at least three second positioning points in a second coordinate system; and acquiring target coordinates of the vertex of the navigation rod in the first coordinate system based on the first transformation matrix, the second transformation matrix and the coordinates of the target positioning point in the second coordinate system. In the calibration process, an axis rotation process in the related art is avoided by introducing a tracking tool, the calibration effect of the navigation tool is improved, and the calibration efficiency is improved.

The invention discloses a teaching solid-liquid contact angle software and hardware measurement system based on a seating drop method, and the system comprises a hardware device and a software interaction and algorithm, the device can achieve the manual rotation of an XY plane and a YZ plane and the manual translation of an X axis and a Z axis, and the software interaction and algorithm comprises the steps: S1, enabling a plane where a camera is located to be perpendicular to a plane where a liquid drop is located, and carrying out the photographing to obtain a liquid drop picture; s2, carrying out graying processing on the liquid drop picture; s3, performing multi-stage interactive cutting on the grayed picture; s4, a Canny edge detection algorithm or a thresholding method is adopted, the contour extraction of the cut picture is completed through shading, iterative optimization is carried out, and liquid drop contour data are output; s5, drawing a liquid drop contour line on the grayscale image, drawing a base line, and calculating to obtain contact angle data; software provided by the invention is point-and-play, and the software can be matched and cooperated with designed hardware to complete a contact angle data acquisition function, and can also be independently used to process a liquid drop picture to obtain a contact angle numerical value.

The utility model provides a confocal microscopic Raman spectrometer wave number correction device, and belongs to the technical field of Raman spectrum detection. The correction device comprises a laser used for emitting laser; the lens assembly comprises a plurality of lenses, and the lens assembly is used for collimating and focusing the laser; the reflector assembly comprises a plurality of reflectors, the plurality of lenses and the plurality of reflectors are alternately arranged, and the reflector assembly is used for adjusting the light path direction of the laser; the attenuation sheet is arranged on a reflection light path in the reflector assembly and is used for attenuating the energy of the laser; the slit is arranged at a confocal position in the lens assembly, and the slit is used for screening Rayleigh scattering light in the attenuated laser; wherein the reflector assembly reflects the Rayleigh scattering light to the rotating grating assembly in the spectrometer. The correction device realizes a convenient and fast calibration process, and improves the calibration precision.

The utility model provides a kind of transverse loading device for steel structure welding test, including push cylinder, fixed plate, vertical board, push plate, two guide structures, two loading mechanisms and two self-adapting adjusting mechanisms;Push cylinder is set on fixed plate, vertical board is set in the end of fixed plate, the push rod of push cylinder is through vertical board, and the middle part of the inner side end surface of push plate is connected with the push rod of push cylinder;Push plate is slidably matched with vertical board by two guide structures.The transverse loading device for steel structure welding test of the utility model solves the problem that the loading head of the loading device in the related art and the friction coefficient of sample contact surface are unstable, resulting in local shear force interference transverse tensile result.

The application discloses a panel laminating device for electronic display screen production and relates to the technical field of display screen lamination.The panel laminating device comprises a base, a vacuum laminating machine is fixedly installed at the top of the base, a pneumatic cylinder driving device is arranged in the vacuum laminating machine, a laminating pressing plate is fixedly installed at the output end of the pneumatic cylinder driving device, a linear driving module is fixedly installed at the top of the base, and a carrying sliding table is fixedly installed at the moving end of the linear driving module.The panel laminating device can complete the distance calibration and positioning of four groups of display screen panels at one time through the right-angle positioning function of the cross-shaped baffle, can adapt to the synchronous lamination operation demand of multiple groups of display screen panels, and can shorten the time consumption of single-batch positioning.

The application relates to an active band-pass filter Q value calibration circuit, which comprises an LDO circuit, a calibration signal filter circuit and a Q value calibration detection circuit; wherein the output ends V1 and V2 of the LDO circuit supply power to the calibration signal filter circuit, the output end VREF of the LDO circuit provides a reference voltage for the Q value calibration detection circuit, the output end signals VBP and VBN of the calibration signal filter circuit serve as inputs of the Q value calibration detection circuit, and the output signal VRZ of the Q value calibration detection circuit is outputted <n:0>The control signal is used as a calibration signal to filter circuit. The application can effectively tune the Q value of the filter and improve the consistency of the chip. Compared with the traditional active band-pass filter Q value calibration circuit, the application has the characteristics of small implementation difficulty and high integration.< / n:0>

This invention discloses an apparatus and method for ultra-high vacuum calibration using the reflux method, belonging to the technical field of vacuum calibration devices. It includes a gas source, a ball valve, a pressure stabilizing chamber, a gas micro-flowmeter, a bellows stop valve, calibration chamber one, calibration chamber two, a dry pump, a stop valve, a solenoid valve, a pumping unit, a flow-limiting element two, a full-range vacuum gauge, an ultra-high vacuum ionization vacuum gauge, and the vacuum gauge under test. The gas source is connected to the pressure stabilizing chamber via the ball valve. The pressure stabilizing chamber is connected to calibration chamber one via the gas micro-flowmeter and the bellows stop valve. Calibration chamber one is connected to calibration chamber two. The dry pump is connected to the pressure stabilizing chamber via the stop valve. The dry pump is connected to the pumping unit via the solenoid valve. The pumping unit is connected to calibration chamber one via the flow-limiting element two. The full-range vacuum gauge is connected to calibration chamber one. One end of calibration chamber two is connected to the ultra-high vacuum ionization vacuum gauge, and the other end of calibration chamber two is connected to the vacuum gauge under test. This invention has a simple structure and high calibration accuracy.

The invention discloses a gear position self-learning method, system and equipment of a gear shifting mechanism and a medium, and relates to the technical field of computers.The gear shifting mechanism comprises a reduction gear, a threaded lead screw, a gear shifting fork and a dog-tooth clutch, the reduction gear drives the gear shifting fork through the threaded lead screw to achieve combination and separation of the dog-tooth clutch so as to conduct gear shifting, the method comprises the steps that under the condition that gear position information of a gear shifting mechanism is abnormal, whether the driving state of a target vehicle meets a preset self-learning condition or not is determined; if the self-learning condition is met, the current position of the threaded lead screw is obtained; locked-rotor detection is carried out on the gear shifting mechanism from the current position of the threaded screw rod, and the actual total stroke of the threaded screw rod in the locked-rotor detection process is obtained; if the stroke deviation between the actual total stroke and the preset theoretical total stroke is smaller than or equal to the preset error threshold value, the position information of the actual top dead center and the actual bottom dead center serves as the updated gear position to be stored.

The invention relates to the technical field of fluorescence temperature measurement, and discloses a calibration system and a calibration method for a fluorescence temperature measurement demodulator, which are used for generating an optical signal for simulating a fluorescence signal in a manner that the intensity of the emitted optical signal changes according to a specified function so as to replace an optical signal returned by a sensor. Therefore, a photoelectric diode of the demodulator receives a photoelectric signal of which the intensity changes according to a function and converts the photoelectric signal into an electric signal, and after the demodulator analyzes the electric signal, the demodulator corrects a direct error between a restored parameter and a standard parameter sent by the calibration device and takes the direct error as a deviation correction value. Therefore, the channel error of the demodulator is corrected by using the standard optical signal so as to calibrate the demodulator.

The clamping and centering assembly comprises a left base and a right base which are arranged in a spaced mode, the upper surface of the left base and the upper surface of the right base are each provided with a left supporting plate and a right supporting plate through at least one set of first guide rails and first sliding blocks, and the left supporting plate and the right supporting plate can move left and right. The upper surface of the left supporting plate and the upper surface of the right supporting plate are movably provided with a left push plate and a right push plate, the right end face of the left push plate extends to the outer side of the left base and is provided with at least one left push block, and the left end face of the right push plate extends to the outer side of the right base and is provided with at least one right push block corresponding to the left push block. Centering of a strip-shaped workpiece in the width direction is achieved through the left push block and the right push block which are synchronous and close to each other in the opposite direction, so that calibration of the position precision of the workpiece is achieved, the distance between the left push plate and the right push plate can be adjusted according to the length of the workpiece, the workpiece centering device is suitable for workpieces of different models and lengths, and universality and centering positioning precision are improved.

The utility model relates to a color printing calibration technical field, especially a kind of printed matter automatic calibration device, including support frame, its top one side is equipped with first conveyor belt, and its top other side is equipped with two parallelly placed second conveyor belt.The utility model has the advantages that by being provided with first conveyor belt and three motorized rollers, while two mounting plates are provided with electric cylinder, mounting bracket, horizontal plate and laser sensor, and then paperboard enters from first conveyor belt, two guide plates are convenient for limiting paperboard, subsequently multiple guide wheels limit paperboard, when paperboard blocks the laser sensor on one side, the electric cylinder on the corresponding side extends, paperboard is pushed to slide horizontally by mounting bracket and multiple guide wheels, multiple guide wheels are located at the two sides of paperboard, limit the advance of paperboard, to realize the calibration of paperboard position, overall structure is simple, convenient to use, to effectively solve the problems existing in the prior art.

The invention belongs to the technical field of geometric quantity precision measurement of optical measurement and machine vision, and discloses a method for calibrating non-circular distortion of a feature image in deep hole inner diameter measurement. According to the invention, calibration of non-circular distortion of the feature image can be realized; a deep hole inner surface feature image distortion and calibration model considering axis position deviation and angle deviation is established, and the mapping relation between a light propagation path and the geometrical morphology of the inner wall is accurately described; the accuracy and feasibility of the model and the detection method are verified through experiments and simulation, accurate calibration of non-circular distortion of the feature image in deep hole inner diameter measurement can be achieved, and independence and coupling interference of position deviation and angle deviation are effectively compensated.

This disclosure presents embodiments of a laser galvanometer distortion calibration method, apparatus, device, and medium. One specific implementation of the method includes: performing a dual-pose scan on a target plate to generate a first image set and a second image set; generating a first set of center pixel coordinates and a second set of center pixel coordinates based on the first and second image sets; performing a discreteness analysis on the first and second set of center pixel coordinates; selectively fusing the first and second set of center pixel coordinates based on axial label information to construct a synthetic coordinate matrix; generating a pixel deviation matrix based on the synthetic coordinate matrix and a reference coordinate matrix; generating a continuous distortion calibration model based on the pixel deviation matrix; and performing a calibration operation on the laser galvanometer. This implementation can utilize a common scanner to calibrate laser galvanometer distortion, thereby significantly reducing equipment investment costs.

The application relates to the technical field of mixed signal circuits, and provides a pipeline successive approximation type analog-to-digital converter and method for inter-stage gain error calibration. A background calibration scheme is designed by introducing a gain error detection circuit and a calibration circuit. For inter-stage gain error calibration of any two adjacent sub-SAR ADCs, the gain error detection circuit is used to judge the range of residual error, the inter-stage gain error is monitored, and finally the closed-loop gain of the residual error amplifier is calibrated according to the deviation result determined by the inter-stage gain error, so that the closed-loop gain gradually converges to the ideal gain. Compared with the prior art, the aforementioned background calibration scheme belongs to analog domain calibration and can track the change of the gain error with PVT. By directly correcting the actual analog gain in the circuit, the background real-time calibration of the inter-stage gain error is efficiently and accurately realized, and the precision and stability of the pipeline successive approximation type analog-to-digital converter are effectively improved.

The invention relates to the technical field of data acquisition and processing, and discloses a multi-level time sequence optimization logic method for FPGA high-frequency data acquisition and processing, which can significantly break through the performance bottleneck of a traditional static hardware architecture in processing non-stationary high-frequency signals, and can improve the performance of the FPGA high-frequency data acquisition and processing by introducing a dynamic value evaluation system based on signal entropy. According to the method, accurate capture and priority scheduling of key mutation data are achieved, occupation of invalid data on computing resources is thoroughly eliminated, and by means of time sequence and resource coupled topology planning and an elastic assembly line reconstruction technology, hardware logic has the self-adaptive capacity of real-time deformation along with data features, and the real-time performance of the hardware logic is improved. Not only are time sequence conflicts and metastable state risks effectively avoided under extreme working conditions, but also self-evolution and calibration of system parameters are realized through a closed-loop feedback mechanism. And the utilization efficiency of logic resources and the robustness of multi-task parallel processing are remarkably improved.

The utility model relates to the technical field of winches, in particular to a reciprocating winch rope arranging device which comprises a base, a reciprocating lead screw, a guide sliding rod, a movable seat, a transmission case, an adjusting handle, a driving wheel, a transmission wheel, an outer protective cover, an inner protective cover and a supporting plate. Supporting plates are fixedly installed on the left side and the right side of the upper end of the base, a reciprocating lead screw is arranged above the base, guide sliding rods are arranged on the front side and the rear side of the reciprocating lead screw, a movable seat is arranged on the outer side of the reciprocating lead screw, a transmission box is arranged on the right side of the base, an adjusting handle is arranged on the right side of the transmission box, and a driving wheel and a transmission wheel are arranged on the inner side of the transmission box. Outer protective covers are arranged on the left side and the right side of the movable seat, and inner protective covers are arranged on the inner sides of the outer protective covers; the reciprocating lead screw is driven by the driving wheel to rotate, so that the movable seat drives the guide roller carrier to linearly move back and forth, the steel wire rope is guided and arranged, and the reciprocating lead screw and the guide sliding rod are shielded and protected through the outer protective cover and the inner protective cover.

The invention discloses oil seal air tightness detection equipment for an electric vehicle driving motor. The oil seal air tightness detection equipment comprises a rack, a conveying module and an air tightness detection module. The conveying module is matched with a jacking limiting assembly through a roller conveying line, and automatic feeding, accurate positioning and rigid locking of the motor are achieved. The air tightness detection module comprises an air tightness instrument, an air tightness pressing module and an automatic point inspection module. A pressing air cylinder drives an air tightness pressing head to conduct sealing detection on the motor oil seal. The equipment innovatively adopts a jacking-support changing structure, stable stress is provided by a supporting plate, and detection micro-motion is eliminated; an automatic point inspection function is integrated, a zero leakage comparison tool can be periodically called to carry out on-line self-calibration on the system, and precision drift is effectively early warned. The motor oil seal airtightness detection device realizes full automation of the detection process, has the characteristics of high precision, high stability and intelligent self-maintenance, and ensures the consistency and long-term reliability of motor oil seal airtightness detection.

The utility model relates to the technical field of sealing strip bonding, and discloses a sealing strip bonding device convenient to calibrate, which comprises a working table, a conveying belt is arranged at the top of the working table, a connecting frame is fixed at the top of the working table, and a correcting assembly and an adjusting assembly are arranged on the surface of the working table; the correcting assembly comprises a circular plate used for driving all parts to move. According to the sealing strip bonding device convenient to calibrate, through the arranged correcting assembly, after the first motor is started, the rotating plate drives the abutting rod to rotate synchronously, the surface of the abutting rod makes contact with the inner side of the linkage rod, and the linkage rod and the rack are driven to do reciprocating motion; the motion is transmitted through a gear, so that the rotating rod and the circular plate synchronously rotate back and forth; when the circular plate rotates, the inner wall of the connecting hole abuts against the outer surface of the short rod, so that the sliding rod, the L-shaped rod and the positioning plate are driven to move in a reciprocating mode, calibration of the sectional material is finally achieved, manual calibration of workers is not needed, and the bonding efficiency is improved.

The application discloses a sealing head part welding positioning device, which comprises a chassis, an automatic sealing head welding machine is installed on the upper end of one side of the chassis, the automatic sealing head welding machine comprises a support, a driving assembly is arranged on the upper side of the support, a chuck is arranged on one side of the driving assembly, a welding frame is arranged on the upper end of the chassis close to the rear side, a positioning assembly is fixedly arranged on the outer side of one end of the chuck, a flange plate is clamped on the inner side of the chuck, an adjusting assembly is arranged on the upper end of the other side of the chassis, and a calibration assembly is arranged on the upper side of the adjusting assembly. The sealing head part welding positioning device is characterized in that the adjusting assembly, the calibration assembly and the butt joint assembly are matched with each other, the sealing head part and the flange plate are more conveniently positioned and butt jointed as a whole, the alignment accuracy is higher, the dependence on the technology of workers is reduced, and the sealing head part welding positioning device is more convenient to use.

This utility model relates to the field of combustible gas sensor calibration, specifically to a high-efficiency multi-channel combustible gas sensor calibration device. It comprises a cabinet assembly, a calibration assembly, a first gas supply assembly, and a second gas supply assembly; the calibration assembly, the first gas supply assembly, and the second gas supply assembly are respectively connected to the cabinet assembly; the first gas supply assembly and the second gas supply assembly are respectively connected to the calibration assembly; the first gas supply assembly and the second gas supply assembly are in communication. This solves the problem of slow calibration efficiency in existing combustible gas sensor calibration devices.

The invention discloses a heading machine cutting head fault diagnosis method based on a frequency gating tree topology network. The specific implementation process is as follows: channel rearrangement is guided by using the spectrum centroid of a channel, accurate feature decoupling is performed on the channel by using anisotropic convolution in combination with the energy distribution characteristics of high and low frequency signals, and semantic dynamic generation of a sample specific weight is captured in real time through a multi-branch convolution gating mechanism. The tree topology structure brings multi-view key features such as accurate coordinates, a long-range structure and global context to the trunk network, and in order to make full use of the key features, a tree structure-oriented distillation strategy is provided. And mapping the injected multi-view key features and the output features of the backbone network to the same semantic metric space by using a parameter sharing classification mechanism, and obtaining a semantic soft mask by means of confidence transformation. Experiments show that by means of an intelligent feature extraction mechanism, the workload of fault diagnosis can be effectively reduced, and meanwhile the diagnosis efficiency is remarkably improved.

This invention relates to a device and method for measuring the depth of the center hole of a large bearing, belonging to the field of bearing inspection technology. It includes a coordinate measuring instrument with guide rails on both sides. A sliding seat is mounted on the outside of the two guide rails. A first cylinder is mounted at the lower end of the sliding seat, and a fixed base is fixedly connected to the output end of the first cylinder. A rotary motor is mounted at the center of the bottom end of the fixed base, and a rotating disk is fixedly connected to the output end of the rotary motor. Industrial cameras are fixedly connected to the bottom ends of both sides of the fixed base. A centering component is mounted at the bottom of the rotating disk, which positions the center of the bearing using probes. A roundness measuring component is mounted on one side of the centering component, used to detect the roundness of the bearing. This invention achieves automatic calculation and calibration of the center position by using the centering component and dual probes for coordinated positioning, combined with the data analysis function of the coordinate measuring instrument.

This invention relates to a method and system for detecting the water content of crude oil, belonging to the field of petroleum quality testing. The method for detecting the water content of crude oil includes the following steps: 1) Collecting crude oil water content data and dynamometer card data corresponding to the time periods when the crude oil contains gas according to a time series; 2) Using the dynamometer card data to determine whether the water content data of the gas-containing crude oil is affected by gas, removing the water content data corresponding to the time periods affected by gas from the water content data of the gas-containing crude oil, and extracting the water content data of the adjacent previous time period without gas; 3) Performing feature extraction and feature fusion on the water content data of the gas-containing crude oil unaffected by gas and the water content data of the adjacent previous time period without gas; 4) Using the fused data as input to a calibration model, predicting through the calibration model to obtain calibration data of the water content of the gas-containing crude oil unaffected by gas. The calibration model improves the accuracy of the water content data.

The application belongs to the technical field of power equipment state detection, and specifically discloses a calibration device and method for polarization index of insulation resistance of a rotating electric machine, which comprises a direct-current voltage source, a first standard resistor, an absorption characteristic simulation module, a voltmeter, an ammeter and a controller. The first end of the ammeter and the negative pole of the direct-current voltage source constitute two ends of the calibration device. The positive pole of the direct-current voltage source is electrically connected with the first end of the first standard resistor and the first end of the absorption characteristic simulation module. The negative pole of the direct-current voltage source is electrically connected with the first end of the voltmeter. The second end of the voltmeter is electrically connected with the second end of the ammeter, the second end of the first standard resistor and the second end of the absorption characteristic simulation module. The controller is used to acquire a standard PI value based on a voltage measurement value and a current measurement value, judge a PI value error of an insulation resistance tester and generate a calibration result. Through the application, the polarization index measurement function of the insulation resistance tester can be calibrated.

The invention relates to the technical field of ultrasonic detection, and particularly provides a knife edge calibration method in a photoacoustic measurement process, which comprises the following steps of: moving a knife edge to deviate from signal light, adjusting a light spot distance between pump light and probe light on a measured surface, moving the probe light to a full width at half maximum position of the pump light, determining a knife edge calibration scheme according to system noise, and calibrating the knife edge according to the system noise. If the system noise is smaller than a preset first noise threshold value, the knife edge is moved to enable the signal-to-noise ratio of the photoacoustic signals obtained through PSD mode detection to reach the maximum value, if the system noise is larger than the preset first noise threshold value, the knife edge is moved to enable the amplitude of the photoacoustic signals obtained through PSD mode detection to reach the maximum value, and the position of the knife edge is adjusted again in the set interval to obtain the photoacoustic signals. The signal-to-noise ratio of the photoacoustic signal reaches the maximum value, and the knife edge calibration is completed. According to the invention, the precision and normalization of knife edge calibration are improved, and the signal-to-noise ratio of a measurement signal is obviously improved.

The present application relates to sensing technology and seabed topography monitoring field, aims at providing a kind of test device and method for analyzing the coupling law of sensing array and soil deformation.The device includes the main box of top opening and the scanning mechanism arranged at the opening, side push mechanism and vertical push mechanism are arranged in the main box;Variable volume test cavity is formed by deformable side plate and multiple side push oil cylinders arranged in side push mechanism, and vertical push bottom plate and multiple side push oil cylinders arranged in vertical push mechanism, for containing test soil and burying sensing array.The present application uses telescopic oil cylinder and push plate combined mechanism to simulate soil settlement, lifting and collapse, which can realize the simulation of soil in multiple directions, different displacement deformation variables and deformation speed, and the main device is simple to process and low in material cost.The deformation coupling law of sensing array with different scales and different burial depths, different soil, different scales, different deformation variables can be studied.

This utility model relates to the technical field of electronic product testing, and provides a TOF sensor testing device, including a housing and a testing station. The testing station includes a fixing fixture, a positioning plate, a TOF gray card testing mechanism, and a belt drive mechanism. The fixing fixture is located on the outer wall of the housing and connected to the housing, and is used to fix the TOF sensor. The positioning plate is located at the bottom of the housing. The TOF gray card testing mechanism is located inside the housing and above the positioning plate, with its bottom slidably connected to the positioning plate. The belt drive mechanism is located inside the housing and is connected to the TOF gray card testing mechanism, which is used to move the TOF gray card testing mechanism on the positioning plate. Calibration and testing of the TOF sensor are achieved on the same TOF sensor testing device, simplifying the testing fixture scheme, improving work efficiency, and reducing product processing costs.

This invention relates to the fields of computer vision and intelligent detection technology, and particularly to a method and system for rapid recognition of multi-dimensional features of containers. The invention constructs a bidirectional closed-loop dynamic weighted multi-scale feature pyramid that includes top-down propagation and bottom-up calibration. Through the top-down path, high-level features provide semantic priors indicating the high probability of character presence, guiding shallower networks to focus on container number regions rather than background noise. Combined with dynamic weights, the contrast of characters can be adaptively adjusted under different lighting conditions, solving the problem of character breakage or adhesion caused by uneven lighting in existing technologies. Through the bottom-up calibration path, precise edge information contained in the multi-scale features is fed back to the deep aggregated features, enabling the deep aggregated features to achieve feature aggregation and calibration, thereby improving the positioning accuracy of subsequent detection heads.

The application discloses a kind of industrial robot kinematics parameter calibration method and system based on parameter separation and multi-objective optimization, belongs to industrial robot technical field, by linear-nonlinear parameter separation, introduce multi-objective minimax optimization, effectively handle the non-homogeneity problem of pose information, realize the fast, robust, high-precision robot kinematics parameter identification and compensation.Calibration method includes:1, acquisition robot end in multiple measurement poses under position information;2, the kinematics model of robot is established, and the parameter to be identified is divided into linear set and nonlinear set, to reconstruct separable optimization problem;3, based on the position information collected, construct the multi-objective minimax optimization problem with the optimization worst performance index as the target, by iteration solving linear set and nonlinear set, complete the identification of kinematics parameter;4, the optimal kinematics parameter identified finally is compensated to robot controller, and the kinematics model is updated.

The invention relates to the technical field of power electronic devices, in particular to a common-mode resonance calibration method and related device for a voltage-controlled oscillator, and the method comprises the steps: obtaining and inputting a capacitance value control code value into a common-mode capacitor array of the voltage-controlled oscillator; acquiring a target digital code corresponding to a second harmonic signal at a cross-coupled pair source node of the voltage-controlled oscillator; performing iterative optimization on the capacitance value control code value according to a comparison result of the target digital code and a pre-obtained digital code threshold value to obtain an optimal capacitance value control code value; according to the optimal capacitance value control code value, the capacitance value of the common-mode capacitor array is adjusted to the optimal capacitance value, the optimal capacitance value enables the comprehensive performance of the voltage-controlled oscillator to be optimal, and the technical problem that the comprehensive performance of the voltage-controlled oscillator becomes poor due to the fact that the common-mode resonant frequency of the voltage-controlled oscillator is difficult to calibrate in the prior art is solved.