601 results about "Phase difference" patented technology

A method for quality inspection of an etching paste material based on a spectral response difference, including: identifying a position of density mutation boundary through spectral collection and density gradient analysis. Applying a specific frequency beam to obtain the resonance response parameter, generating stress field reconstruction data. Performing a reverse optical tracking to obtain a defect formation path, generating degradation prediction data. Establishing a self-organizing optical monitoring grid, to form a hierarchical spectral fingerprint library. Constructing a multi-point linked defect blocking network, to form an interconnected optical energy field. Monitoring a cooperative response to obtain network stability data, Identifying abnormal position coordinates based on a material quality grade and the network stability data, obtaining the abnormal position coordinates. Performing a phase adjustment to obtain a phase difference spectral set, conducting a phase comparison marking on the abnormal position coordinates, completing the quality inspection of the etching paste material.

The invention relates to the technical field of detection, in particular to a complex shell detection method and system based on structured light scanning. The method comprises the following steps: calculating a wrapped phase value and a phase modulation amplitude of each pixel point under each frequency, calculating discrete probability distribution containing candidate stripe series and a corresponding probability for each pixel point based on a multi-frequency wrapped phase difference, generating an initial pixel confidence map, and constructing an energy function; the penalty weight of the smooth item is determined according to the phase modulation amplitude and the wrapped phase gradient local variance, obtaining an initial fringe order distribution diagram, updating discrete probability distribution by using an initial pixel confidence map, re-minimizing an energy function to obtain a corrected fringe order distribution diagram, and reconstructing a final three-dimensional shape. And iteratively optimizing a projector principal point and a radial distortion coefficient in system calibration parameters. According to the scheme, the geometric details of the surface can be reserved, and the processing effect and the measurement precision of the complex curved surface and the high-curvature area are improved.

The invention discloses a three-degree-of-freedom measurement method based on a planar two-dimensional time grating sensor, and the method comprises the following steps: enabling a movable ruler base body and a fixed ruler base body to be installed in a parallel and opposite manner, and leaving a certain gap between the movable ruler base body and the fixed ruler base body; after same-frequency and equal-amplitude sine excitation signals with the phase difference of pi / 2 are applied to the four-phase excitation electrode groups on the fixed ruler base body respectively, the movable ruler base body moves in the X direction and the Y direction and deflects around the Z axis relative to the fixed ruler base body; the single sensing unit on the movable ruler base body can solve output signals deflecting in the X direction and the Y direction and around the axis, the output signals of all the sensing units are subjected to combined operation, and displacement values of the movable ruler base body in the X direction and the Y direction and the deflection angle theta can be decoupled. According to the method, displacement measurement in the X direction, the Y direction and the deflection angle around the Z axis can be achieved through combined calculation between the induction units on the movable ruler base body, the calculation speed is high, interference can be further eliminated, and the measurement precision is improved.

The invention discloses a gas pipeline leakage source positioning method, and relates to the field of gas leakage detection. According to the method, acceleration signals and sound wave signals are collected through sensors arranged at detection points, peak value extraction is carried out in respective corresponding frequency domain complex spectrums through data preprocessing, and main frequency signals and frequency multiplication signals are obtained; distinguishing real leakage and interference signals according to the stable frequency integral multiple relation characteristic and time sequence consistency of the two signals; the phase difference is calculated by extracting the phase of the dominant frequency signal and the phase of the corresponding frequency multiplication signal, and the position of the leakage source relative to the detection point is calculated by combining the path sound velocity. The method can capture small distance differences, effectively improves the precision and robustness of leakage positioning, and is suitable for online leakage monitoring and diagnosis of gas or liquid medium pipelines.

Disclosed is a technology related to a low noise amplifier applied between an RF receiver and an RF switch. A phase difference matching circuit having the same phase difference as a positive gain amplifier is added to an output terminal of an attenuator of a low noise amplifier having a variable gain switching structure. In addition, a variable impedance circuit connected to an output terminal of the positive gain amplifier and an output terminal of a phase difference matching unit to finely adjust the phase difference of each output terminal may be further included.

The invention relates to the technical field of on-line monitoring, in particular to an insulation fault on-line monitoring method and system for a medical IT system control cabinet. The method comprises the following steps: selecting a non-integer frequency multiplication detection frequency according to equivalent ground distributed capacitance in a previous monitoring period, and superposing the non-integer frequency multiplication detection frequency with a fundamental frequency to form a composite signal injection system; collecting signals to calculate a voltage instantaneous harmonic distortion rate change gradient, and selecting a time window to split the leakage current according to the change gradient; on the basis of dispersion estimation signal-to-noise ratio weighted fusion current vectors, insulation resistance and distributed capacitance are calculated; constructing a four-dimensional original feature vector composed of the insulation parameter, the phase difference and the intermodulation component energy; constructing a diagonal weighting matrix based on the resistance-capacitance ratio and the gradient to transform a feature vector, and determining the fault attribution through the Mahalanobis distance calculation with the fault template library. According to the scheme, harmonic interference can be avoided, calculation stability can be improved, insulation instantaneous sudden change can be quickly responded, and different fault types can be accurately distinguished to guide maintenance.

The invention discloses a low-harmonic high-voltage speed regulation system based on a multi-pulse phase-shifting transformer, and particularly relates to the field of power electronic technology and motor speed regulation, which is characterized in that the primary side of the multi-pulse phase-shifting transformer is in star connection, and N groups of windings on the secondary side are in extended delta connection, so that phase difference is realized; the multi-path low-voltage alternating current is converted into multi-path low-voltage alternating current and low-order harmonics are High voltage is output through cascade H-bridge topology series connection, and reliable conversion is guaranteed through rectification filtering inversion and device redundancy design; the motor control module collects signals through multiple sensors, and PWM drive signals are generated through a vector control algorithm and coordinate transformation. The harmonic detection and compensation module detects harmonic waves based on an FFT algorithm, and injects a reverse compensation component through a modulation strategy to offset the harmonic waves; and the auxiliary protection module integrally realizes low-harmonic and high-precision high-voltage motor speed regulation through multi-dimensional monitoring and hardware protection.

The invention relates to the technical field of photoelectric detection, and particularly discloses a three-dimensional defect detection method and system based on compound color stripe projection, and the method comprises an upper computer control and processing module which is used for generating a compound color stripe pattern coded with phase difference information, and coordinating and controlling the synchronous operation of the whole system; the structured light projection module is used for receiving the composite color stripe pattern and projecting the composite color stripe pattern to the surface of a measured object at one time; the imaging module is used for receiving the composite colored light reflected after being modulated by the surface of the measured object and separating the composite colored light into monochromatic light signals with different colors for synchronous acquisition; the imaging module further comprises an active highlight suppression unit which is used for dynamically adjusting the polarization direction according to an instruction of the upper computer control and processing module so as to suppress highlight caused by specular reflection. Multiple groups of sine fringes with fixed phase differences are projected to the surface of a measured object at one time. And a plurality of deformed fringe patterns with phase displacement can be synchronously acquired under single exposure.

The invention discloses an on-line brightness uniformity automatic test method and system, and relates to the technical field of brightness test, and the method comprises the following steps: obtaining a stroboscopic signal of an illumination light source in a test environment, and extracting the stroboscopic characteristic frequency of the illumination light source through a frequency domain analysis algorithm, establishing a phase tracking baseline between the frequency of the illumination light source and a sampling clock of the optical detection equipment, and constructing a phase difference mapping matrix based on the baseline; and based on the phase difference mapping matrix, constructing a self-correction model of the sampling clock of the optical detection equipment. Through phase tracking and self-correction control, optical sampling and illumination frequency are synchronized for a long time, brightness fluctuation caused by stroboscopic aliasing is eliminated, and measurement stability and consistency are improved; and through frequency domain residual suppression and brightness index re-calibration, closed-loop control from sampling to output is realized, so that the detection result is higher in precision, the judgment is more reliable, and accurate support is provided for brightness detection and quality tracing of a production line.

The invention discloses a DP-MZM-based reconfigurable mixer with phase shift and image rejection functions, and belongs to the field of microwave photon signal processing. By adjusting an input radio frequency signal and a direct current bias voltage of the DP-MZM1, four different LO frequency doubling and mixing functions can be realized. By controlling the angle alpha between the polarization direction of the polarization analyzer and one axis of the modulator, the phase of the generated signal can be flexibly tuned in the range of 0-360 degrees. When combined with the optical frequency comb, the multi-channel multi-band frequency conversion system can be expanded into a multi-channel multi-band frequency conversion system with independent phase tuning capability by utilizing the channel switching and frequency slot selection functions of the wavelength selection switch, and parallel output of various frequency mixing results can be realized. By adjusting the phase difference between the two-channel output signals, I / Q mixing, double-balanced mixing and image rejection mixing can be configured. The scheme is not influenced by direct current bias drift, the system complexity is reduced, and the frequency conversion efficiency is improved.

The invention relates to the technical field of optical element surface shape dynamic measurement scheme design, in particular to an element surface shape dynamic measurement system based on a metasurface. According to the scheme, polarized light emitted by a laser is split into reference light and test light, the test light passes through a quarter-wave plate twice to realize polarization orthogonalization, and the test light is combined with the reference light to form elliptically polarized light; synchronously capturing component intensities of left-handed / right-handed circular polarized light and orthogonal line polarized light by using a detector, and resolving a phase difference delta in real time by combining a Stokes parameter; environmental interference is eliminated based on a common-path design, a polarization beam-splitting element is omitted, and the architecture is simplified; accurate dynamic measurement of the surface shape of the measured piece is realized by deducting the inherent surface shape error of the system. The system provided by the invention has the advantages of strong anti-interference performance, high measurement efficiency, remarkable cost reduction and the like, and is suitable for precise optical manufacturing and on-line detection scenes.

The invention belongs to the technical field of nonlinear optics, and discloses a method and a structure for realizing nonlinear waveguide quasi-phase matching. A plurality of groups of micro-nano structures are formed on the nonlinear waveguide along the waveguide propagation direction, each group of micro-nano structures comprises one or more air holes, the micro-nano structures are utilized to cause relative phases between different wavelength modes to generate jump, phase differences caused by phase mismatch are compensated, and quasi-phase matching is realized. The phase matching scheme provided by the invention is applicable to all nonlinear materials and waveguides, and has the advantage of high universality.

Aspects presented herein may enable a first UE to estimate the angle-of-arrival (AoA) of a second UE. In one aspect, a first UE measures a set of phase difference of arrivals (PDoAs) for a set of radio links between the first UE and a second UE, each radio link in the set of radio links is associated with a different wavelength. The first UE determines a general function that is associated with a probability in which the second UE is at a set of relative directions or a set of relative positions compared to the first UE. The first UE estimates a relative direction or a relative position of the second UE compared to the first UE, where the relative direction is included in the set of relative directions and the relative position is included in the set of relative positions.

The invention relates to a DAS signal positioning method based on adaptive tensor decomposition and dynamic correction. The method comprises the steps of converting phase difference data into strain rate data, constructing a three-dimensional tensor based on a time domain signal of a space point, solving an optimization problem after constraint modeling, and extracting a de-noised DAS signal. Calculating an initial fault position, and calculating an actual optical path and an apparent position after temperature change based on a thermal expansion effect and a thermo-optic effect; and a dynamic correction algorithm is set, a system coordinate reference is adaptively calibrated, and a final positioning result is calculated. According to the method, original signals are separated into a low-rank background field, a sparse event field and a structured noise field through unsupervised tensor decomposition, and the defects of dependence on labeled data and insufficient complex noise separation are overcome; by establishing a temperature-optical path coupling physical model and a dynamic correction algorithm for real-time cross-correlation calibration, positioning drift caused by environmental factors is accurately compensated, and high-fidelity denoising and accurate positioning of cable line events in a complex environment are realized.

The invention provides an angular displacement measurement method and system based on diamond quantum sensing, and relates to the field of quantum sensing, and the method comprises the steps: taking a diamond NV color center as a probe, placing the probe in a magnetic field and a static magnetic field which rotate at a constant speed, and carrying out the coaxial rotation with a to-be-measured object, the diamond NV color center of the system is measured by adopting continuous light excitation and microwave radiation based on diamond quantum sensing angular displacement; acquiring a first fluorescence signal emitted by the diamond NV color center at a first moment, and outputting a corresponding first traveling wave signal; acquiring a second fluorescence signal emitted by the diamond NV color center at a second moment, and outputting a corresponding second traveling wave signal; and based on the phase difference between the first traveling wave signal and the second traveling wave signal, determining the angular displacement value of the rotation of the object to be measured of the angular displacement measurement system based on diamond quantum sensing. According to the embodiment of the invention, the diamond NV color center is highly sensitive to the change of the magnetic field, and the measurement precision of angular displacement can be improved.

An ADPLL circuit includes a phase comparator for comparing a phase of a reference clock (REFCLK) input signal with a phase of a digitally controlled oscillator clock (DCO_CLK) signal output from a DCO. The phase comparator includes a first ADC connected to receive a REF_P signal corresponding to the phase of the REFCLK signal via a first switch and output an ADC0 signal and a second ADC connected to receive the signal REF_P via a second switch and output an ADC1 signal. The ADPLL circuit further includes a digital filter for receiving the ADC0 and ADC1 signals and determining therefrom a difference between the phases of the DCO_CLK signal and the REFCLK signal. The digital filter provides a DCO control signal to the DCO to control a frequency of operation of the DCO based on the phase difference.

The invention relates to the technical field of optical communication, and provides a polarization separation rotator and optical communication equipment. The polarization separation rotator comprises an input coupling waveguide, a conical waveguide, a phase difference introduction waveguide and a multi-mode interference coupler, wherein the input coupling waveguide, the conical waveguide, the phase difference introduction waveguide and the multi-mode interference coupler are sequentially arranged in the light propagation direction; the input coupling waveguide is used for coupling an input optical signal to the tapered waveguide; the input optical signal comprises two polarization modes; the narrow end of the tapered waveguide is arranged corresponding to the input coupling waveguide, and the wide end of the tapered waveguide is arranged corresponding to the phase difference introduction waveguide; the phase difference introduction waveguide is used for splitting the polarization mode into a polarization mode with a preset angle phase difference; and the multimode interference coupler is used for separating the optical signals in the two polarization modes so as to respectively transmit the optical signals to different output ports. According to the polarization separation rotator provided by the invention, the defect of low port isolation is solved, and the port isolation is improved while the wide-spectrum working bandwidth is realized.

The invention discloses a dual-wavelength polarization tuning interference spectrum frequency discrimination device and a synchronous frequency locking method, and the method specifically comprises the steps: enabling a polarization Michelson interferometer to divide incident laser into two beams of linearly polarized light through a plurality of achromatic wave plates and a polarization splitting prism, and enabling the two beams of linearly polarized light to form dual-wavelength circularly polarized light for output after the two beams of linearly polarized light are reflected and combined; the output light is divided into two beams after passing through a light splitting module, and the two beams are respectively collected and processed into a four-quadrant synchronous phase-shifting interferogram by a polarization camera after passing through an achromatic lens, and the wavefront phase difference is calculated in real time; the other beam is compensated by the rotary linear polarizer and then is received by the detector; through the corresponding relation between the wavefront phase difference and the rotation angle, the rotation linear polarizer is driven in real time to carry out phase compensation, so that polarization tuning and frequency locking are realized; meanwhile, a piezoelectric mirror bracket control signal is obtained through calculation, and interferometer parallelism error correction is carried out. According to the invention, synchronous real-time monitoring and active feedback locking of dual-wavelength interference signals can be realized, and the system has the advantages of high tuning resolution and accurate data.

The embodiment of the invention discloses a power grid line state monitoring method and device based on vibration acoustics. The method comprises the following steps: acquiring a power grid power transmission line vibration signal and a sound wave signal; according to the topological structure of the power transmission line, the spatial distribution of adjacent lines and the measuring point positions of different sensors in the same line, constructing a signal propagation model, and calculating a multi-dimensional correlation index between the vibration signal and the sound wave signal, the correlation index including a time domain correlation coefficient, a frequency domain power spectral density and a phase difference feature; simulating signal propagation characteristics in a normal operation mode by using the signal propagation model, generating a reference correlation index, and identifying whether the power transmission line has an abnormal state; and carrying out accurate positioning on the abnormal state by adopting a spatial positioning algorithm, and carrying out multi-level evaluation according to the abnormal confidence coefficient and the influence range to generate a line abnormal report. According to the invention, real-time monitoring and accurate positioning of the abnormal state of the power transmission line are realized.

The invention relates to the technical field of machine vision detection, in particular to a code disc defect detection method for a DD motor, and the method comprises the steps: obtaining an average space period in a panoramic grayscale image of the surface of a code disc to be detected; constructing a space phase locking difference model based on the average space period, and calculating a phase difference value of each pixel point in the panoramic grayscale image by using a bidirectional difference strategy and introducing a brightness weighting factor; using an orthogonal gradient suppression model to reject residual signals at the edge of the scribed line to obtain an initial defect value of a pixel point; calculating the defect saliency of the pixel points; according to the method, the panoramic grayscale image containing the defect saliency is subjected to morphological closed operation processing, binarization segmentation is performed according to the processed panoramic grayscale image to extract the connected domain, and the code disc defect detection result is obtained according to the parameters of the connected domain, so that the accuracy of the code disc defect detection result of the DD motor is effectively improved.

The invention provides a spectral response difference-based etching paste material quality detection method and system. The method comprises the following steps of: decomposing and identifying an internal density abrupt change boundary position of a material through multiband spectral chromatography; applying a light beam with a specific frequency to a sudden change boundary to perform resonance excitation to reconstruct stress field distribution, determining a stress concentration point, performing reverse optical tracking to form a defect path, and establishing a self-organizing optical monitoring grid; performing density self-adaptive adjustment on the grids, and forming a graded spectrum fingerprint database through differential spectrum excitation to generate a material state boundary recognition standard; phase change critical point detection is carried out based on an identification standard, and a pulse light beam is applied to excite surface deformation to construct a multi-point linkage defect blocking network; and performing defect analysis on the network to form an interconnected optical energy field, monitoring the energy field to determine an abnormal position, and performing phase comparison marking through a phase difference spectrum group to complete quality detection of the etching paste material, so that accurate identification and intelligent quality classification of internal defects of the material are realized.

Provided is a phase modulation device capable of controlling a phase by increasing the output of a laser beam. The phase modulation device comprises: at least one mirror including a reflective surface; and a plurality of driving elements arranged on a side opposite to the reflective surface of the at least one mirror, wherein the reflective surface is displaced by the plurality of driving elements.

The invention belongs to the field of quantum precision measurement, and particularly discloses an all-fiber phase detection system and method based on polarization interference quantum weak measurement. The device sequentially comprises a laser light source, a front selection module, a phase regulation and control module, a rear selection module and a photoelectric acquisition module along a light path. The front selection module prepares linearly polarized light emitted by the laser light source into two equal-amplitude superposition states in a cross-polarization mode as initial polarization states, and the phase regulation and control module senses the phase difference after change conversion of a physical quantity to be measured, dissipates the phase difference accumulated by the two polarization states in the sensing transmission process, and adjusts the phase difference of the two polarization states. And the post selection module performs nearly orthogonal projection measurement on the polarization state, in the process, a birefringence phase difference caused by a physical quantity to be measured is converted into a weak-value amplified light intensity signal, and the photoelectric acquisition module obtains the physical quantity to be measured by monitoring the relative variation of the optical power. Based on the quantum weak measurement principle, the birefringence phase difference caused by the to-be-measured physical quantity is converted into the weak value amplified optical power signal, and the sensing sensitivity is improved.

The invention discloses a mechanical non-resonant one-bit phase electromagnetic reflection metasurface unit, and belongs to the field of artificial electromagnetic materials. The unit comprises a non-resonant electromagnetic structure and a mechanical driving device. The non-resonant electromagnetic structure comprises a dielectric layer, an air layer and an adjustable metal backboard from top to bottom; the mechanical driving device adopts a bidirectional self-holding electromagnet, a screw rod of the bidirectional self-holding electromagnet is connected with the metal back plate, the back plate is driven to be switched between two preset positions through forward / reverse pulse current, the thickness of an air layer is accurately adjusted, and therefore one-bit dynamic switching of a reflection phase between 0 degree and 180 degrees is achieved through propagation phase accumulation. In the 5G millimeter wave frequency band of 20 GHz to 29.5 GHz, the reflection coefficients of the two states are both larger than 0.99, the phase difference is stabilized within 180 degrees + / -20 degrees, and good robustness is achieved for mechanical displacement deviation. The unit has the advantages of zero static energy consumption, low insertion loss, wide bandwidth, simple structure and simple control, and is suitable for a low-power-consumption intelligent reflecting surface and a dynamic beam forming system.

The invention discloses a space customization three-dimensional column vector light beam array generation method based on a metasurface, and belongs to the field of micro-nano optics, diffraction optics and structured light field regulation and control. The implementation method comprises the following steps of: independently regulating and controlling left-hand circular polarization and right-hand circular polarization components of incident light based on geometric and propagation phase joint modulation of the metasurface; a metasurface, a phase distribution coding lens factor of a polarization channel, a Dammann vortex grating with opposite basic topological charges and a spiral Dammann zone plate are independently optimized, and left-handed and right-handed circular polarization components generate a three-dimensional vortex beam array with opposite spatial topological charges in a near-field Fresnel domain; the left-handed circular polarization vortex array and the right-handed circular polarization vortex array with opposite topological charges are coherently superposed to form a spatially customized three-dimensional column vector light beam array, and the vector characteristic of each light beam in the array depends on the amplitude ratio, the phase difference and the topological charges of the left-handed circular polarization component and the right-handed circular polarization component on each diffraction order. According to the invention, the regulation dimension of the column vector light beam can be expanded.

This invention discloses a method, system, and self-moving device for multi-sensor clock synchronization. The method is applied to a self-moving device including a first sensor and a second sensor. The method includes generating a first rotational speed-time curve for the first sensor and a second rotational speed-time curve for the second sensor during the rotation of the self-moving device; determining the phase difference between the first and second rotational speed-time curves; and adjusting the clocks of the first and second sensors to be synchronized based on the phase difference. This method and system for multi-sensor clock synchronization more intelligently and effectively improves the efficiency of multi-sensor clock synchronization.

The invention provides an electronic transformer traceability reference acquisition method and device based on quantum voltage. The traceability reference acquisition method comprises the following steps: acquiring a first signal and a third signal; the first signal is a Josephson quantum voltage signal, the frequency of the first signal is N times of that of the third signal, and N is an integer greater than 1; calculating a phase difference between the first signal and the third signal; obtaining a second signal, and obtaining a corrected second signal based on the phase difference and the amplitude of the first signal; according to the invention, the first signal is generated based on the Josephson quantum voltage, then the phase difference between the first signal and the third signal is calculated, and then the second signal is corrected by the phase difference, so that the accurate synchronization of the first signal and the second signal is realized, and a more accurate traceability reference signal can be output. And the calibration precision of the to-be-calibrated equipment can be improved.

The application provides a conveyor speed detection method, device and equipment based on a dual-antenna RFID. The method comprises: tracking and processing an RFID tag by using a first antenna, and recording a first phase sequence of the RFID tag; tracking and processing the RFID tag by using a second antenna, and recording a second phase sequence of the RFID tag; determining a phase difference between the first phase sequence and the second phase sequence, and determining a phase difference speed according to the phase difference; determining a Doppler speed according to movement data of the RFID tag; fusing the phase difference speed and the Doppler speed by using a Kalman algorithm, determining a final conveyor belt speed, and outputting the final conveyor belt speed. The phase difference speed is determined according to the phase difference between the phase sequences of the two antennas. The Doppler speed is also determined. The phase difference speed and the Doppler speed are fused by using the Kalman algorithm, and the final conveyor belt speed is determined, so that the conveyor belt speed is accurately detected with high precision.

To detect malfunctions in optical deflectors with greater precision. [Solution] A device for driving an optical polarizer equipped with a mirror, comprising: a controller for controlling the operation of the mirror; a driver that outputs a first drive signal to the optical polarizer for resonantly driving the mirror on the first axis and a second drive signal for non-resonantly driving the mirror on the second axis based on data output from the controller; and a sensor processing unit for acquiring a sensor signal output from the mirror, wherein the controller determines the phase difference between the first drive signal and the sensor signal, determines that the operation of the optical polarizer is normal if the phase difference with respect to the phase of the second drive signal at the time the phase difference is determined to be within a predetermined range, and determines that the operation of the optical polarizer is abnormal if the phase difference is not within the predetermined range.

The drive control method for the X-ray tube anode rotating motor includes: S10: After the drive circuit is powered on, the control circuit outputs a test signal to the anode rotating motor. The test signal has the same phase as the working signal, and then proceeds to S20; S20: Phase detection is performed on the test signal, and the phase difference is calculated based on the phase detection result, and then proceeds to S30; S30: Based on the calculated phase difference, it is determined whether the phase of the test signal meets the operating phase requirements of the anode rotating motor. If the determination result is yes, then proceeds to S40; S40: It is determined whether the user has issued an exposure request. If the determination result is yes, then proceeds to S50; and S50: The drive circuit is controlled to output a working signal to the anode rotating motor to drive the anode target disk to rotate. This method ensures that the power supply phase connected to the anode rotating motor meets the operating phase requirements of the anode rotating motor during operation. An X-ray generating device is also provided.