335 results about "Pulse time" patented technology

The invention belongs to the technical field of photoelectronics, and particularly relates to a wide-spectrum narrow-linewidth semiconductor mode-locked laser, and the collaboration of a saturable absorption region SA and a resonator is reflected in time domain-frequency domain dual optimization. And the resonator optimizes the frequency domain characteristics through nonlinear broadening, phase synchronization and mode purification. The SA adjusts a mode locking threshold value in real time through dynamic bias voltage, the pulse energy stability is ensured, dispersion management of the resonator balances the SPM and group velocity dispersion, spectrum splitting is avoided, and the dissipative soliton form is maintained. Besides, due to heterogeneous integration of the InP-based SA and the SiN-based resonator, wafer bonding of the InP-based SA and the SiN-based resonator is realized, high-efficiency energy transfer is realized through the low-loss conical waveguide, a high-performance frequency comb with a wide spectrum and a narrow pulse width is output, and the high-performance frequency comb can be widely applied to the fields of ultrafast optics, coherent light communication and precision spectroscopy.

The invention discloses a battery fault diagnosis method and device, and belongs to the technical field of battery management. The method comprises the following steps: synchronously acquiring multi-dimensional signals in a battery operation process through a multi-modal sensor array; performing encoding processing on the multi-dimensional signal through a pulse encoder to obtain a standardized pulse time sequence; based on a federated transfer learning framework, training the quantum pulse neural network in combination with a physical constraint loss function to obtain a trained battery fault diagnosis model; inputting the standardized pulse time sequence into the battery fault diagnosis model, and calculating a battery fault category and a thermal runaway probability through quantum inference; and triggering a corresponding security policy according to the thermal runaway probability and a preset threshold. By adopting the technical means of multi-mode signal fusion, quantum calculation acceleration and distributed learning, accurate and rapid diagnosis of battery faults is realized, and the method has the advantages of high precision, low delay and low power consumption.

The invention provides a device and a method for generating a Lammer-type hot atomic beam light clock based on periodic pulses. The device comprises a pulse laser, a laser frequency stabilization system, an optical switch, a Laammer type hot atom chamber and a laser detection feedback system. Wherein the pulse laser is used for emitting first laser, and the pulse time is nanosecond magnitude. The laser frequency stabilization system is used for carrying out pre-frequency stabilization on the first laser to obtain second laser, and the second laser is conveyed to the Laammer type hot atom chamber through the optical switch; the switching period of the optical switch is set to be microsecond magnitude; the lamplug type hot atom chamber is used for outputting a lamplug type hot first atom beam; and the laser detection feedback system is used for detecting the first atomic beam, feeding back and controlling the pulse laser, locking the frequency of the pulse laser on a transition spectral line of atoms, and obtaining a hot atomic beam light clock. According to the invention, the interaction time of laser and atoms can be controlled, and the utilization rate of the atoms of the Lammer-type hot atomic beam light clock can be improved.

The invention discloses a collaborative light regulation and control decision method and system, and relates to the technical field of intelligent regulation and control of plant factory light environments, and the system comprises a plant physiology monitoring unit which is provided with a non-invasive microelectrode array and a hyperspectral imager; and the environment sensing unit is used for collecting illumination intensity, spectrum, temperature, humidity and carbon dioxide concentration data. According to the collaborative light regulation and control decision-making method and system, fusion of multi-source heterogeneous data is realized through a pulse time sequence coding mechanism, and the problem that environmental parameters and plant physiological statuses are difficult to collaboratively analyze in the prior art is solved; based on a dynamic optimization architecture of double-alliance Nash equilibrium, autonomous collaborative decision-making of spectrum parameters can be completed in a short time, and compared with a traditional preset light formula, the response speed is improved; decision effectiveness can be synchronously guaranteed on the virtual model and biological entity level, the light suppression misjudgment rate is reduced, and meanwhile the plant light energy utilization rate is stably improved.

The invention discloses a narrow pulse suppression method and device for dynamic adjustment of dead time, a medium and a controller, and the method comprises the steps: presetting the dead time of M periods in the future according to the real-time state of a motor and the dead time and current change rate of the first N periods, and outputting a working condition label at the same time, N and M being positive integers; determining target dead zone time Td according to the working condition label and the dead zone time of the M periods in the future; determining a dead zone time ratio Dd according to the target dead zone time Td, constructing an interval section of a PWM signal according to the dead zone time ratio Dd and a narrow pulse time ratio Dp, and constructing an upper bridge arm duty ratio function Dt and a lower bridge arm duty ratio function Db corresponding to each interval section according to the dead zone time ratio Dd and a duty ratio instruction Dm of the PWM signal; according to the interval section where the duty ratio instruction Dm of the PWM signal is located, a duty ratio function of the corresponding interval section is called, and a target PWM signal is output.

The invention provides a battery charging and discharging pulse frequency detection method and system, and the method comprises the steps: dividing a pulse current signal of a target battery during charging and discharging into a plurality of pulse signal segments, and determining the static deviation of the current of the target battery during charging and discharging based on the local current characteristics of each pulse signal segment; determining the time domain positioning error of the time interval through the static offset and the pulse width of the pulse current signal; monitoring the surface temperature of the target battery during charging and discharging, and determining the disturbance characteristics of the temperature of the target battery during charging and discharging to the current according to all the monitored temperatures and the pulse current signal; and performing pulse identification on the pulse current signal according to all the time domain positioning errors and disturbance characteristics to obtain an effective pulse time mark sequence of the target battery during charging and discharging, and determining an effective pulse frequency of the target battery during charging and discharging based on the effective pulse time mark sequence. According to the scheme, the influence of current signal drift on pulse frequency detection in the battery charging and discharging process can be reduced.

A signal processing circuit for a spiking neural network includes an interface for converting an analog input signal to a corresponding pulse-time representation of the analog input signal. The interface includes: an analog-to-information (A / information) converter configured to: generate a modulated signal representative of one or more characteristics of an analog input signal; a feature detector circuit configured to: compare the modulated signal to a reference signal representative of a reference feature, and configured to: generate an error signal indicative of a difference between the modulated signal and the reference signal; a feature extractor circuit comprising a locked loop circuit having an input for receiving the error signal and configured to: generate an output signal representative of an occurrence of one or more features represented by the modulated signal; and an encoder circuit configured to encode the output signal into a pulse sequence for input to the spiking neural network.

The invention discloses a method and device for determining distance information of flight equipment and a storage medium, and relates to the technical field of microwave landing system measurement. The method comprises the following steps: acquiring initial distance information of target flight equipment; predicting a target position of the target flight equipment at the next moment based on the initial distance information; based on the target position, determining updated distance information of the target flight device, the updated distance information being used for indicating information from the target flight device to the ground when the target flight device is located at the target position; based on the updated distance information, pulse time difference information of the target flight equipment is determined, and the pulse time difference information is used for indicating time difference information of a pulse signal sent by the target flight equipment to the ground beacon station and a corresponding response pulse signal; and determining target distance information of the target flight equipment relative to the ground beacon station based on the pulse time difference information. According to the invention, the precision of distance measurement of the flight equipment is improved.

The invention discloses an X-ray pulsar period and pulse time delay estimation method, and belongs to the technical field of pulsar navigation. The method comprises the following steps: through H test, according to a principle that an average integral square error between a Fourier series estimator and a real contour is minimum, searching an optimal harmonic wave truncation order under each observation; according to prior information of an observation event, adaptive selection of harmonic wave truncation orders under different data qualities is realized; re-estimating the phase of the packing data according to the equal photon intensity segmentation principle in the packing, so that the folded contour is closer to the real contour; and quantitative analysis is carried out in combination with simulation and actual measurement data, the optimal packing quantity is selected, and a folding contour with the optimal distinction degree is provided for statistical magnitude inspection. The method has the advantages of being suitable for a navigation pulsar source, high in reliability, high in environment adaptability, high in estimation precision, high in estimation stability and the like, and the X-ray pulsar navigation performance can be further improved.

The invention relates to the technical field of mechanical fault diagnosis, in particular to a mechanical fault diagnosis method and system based on a pulse neural network. According to the invention, a fault diagnosis network is constructed, and the fault diagnosis network comprises a pulse time-frequency repair module, a pulse space-time attention module and a pulse residual network; wherein the pulse time-frequency repairing module comprises a time-frequency convolution layer and a pulse repairing sub-module; time-frequency distribution characteristics of the collected mechanical vibration signals are extracted by using a time-frequency convolution kernel, the time-frequency distribution characteristics are input into a pulse repairing sub-module, and a time-frequency characteristic group of a pulse residual network time step length number is output; inputting each time-frequency feature group into a pulse space-time attention module, and extracting key time-frequency features of each time-frequency feature group; and taking the key time-frequency characteristics of each time-frequency characteristic group as the input of each time step length of the pulse residual network, and outputting a prediction fault category label. According to the invention, the mechanical fault diagnosis precision is effectively improved.

The invention relates to the field of optical fiber sensing, and particularly provides a frequency drift suppression method and system for phase-sensitive optical time domain reflection equipment, and the method comprises the steps: dividing an optical cable into a plurality of sampling intervals according to a preset length; obtaining a spatial phase difference of each sampling interval of the optical cable; obtaining a space-time phase difference of each sampling interval of the optical cable; obtaining a target optical cable section on the optical cable, and obtaining a frequency drift phase difference of the target optical cable section; obtaining the minimum space-time phase difference corresponding to the frequency drift pulse time according to the space phase difference and the space-time phase difference; and correcting the frequency drift phase difference of the target optical cable section according to the minimum space-time phase difference. Compared with the prior art, the method has the advantages that the minimum space-time phase difference is extracted from the space-time phase information, the minimum space-time phase difference represents the frequency drift generated by the optical cable in the corresponding pulse time and only influenced by the laser, the frequency drift phase difference can be corrected according to the minimum space-time phase difference, and normal operation of the optical cable is guaranteed.

The invention belongs to the technical field of invisible coding and anti-interference, and particularly relates to an invisible coding anti-interference laser coding and decoding system based on a sub-pulse phenomenon, which comprises a laser transmitting module, a signal processing module and a pulse information comparison unit. The passive Q-switched laser generates a main pulse and a sub-pulse with a preset double-peak interval, a main pulse signal delayer is used for coordinating a double-pulse time sequence, differential gain amplification is carried out on the main pulse and the sub-pulse, double-peak interval information is reconstructed through electric signal synthesis, an actual interval is compared with preset encoding information, and the time sequence of the main pulse and the sub-pulse is calculated. An anti-interference function is realized, laser stability is guaranteed through a side pumping structure in combination with a temperature compensation mechanism, concealment and anti-deception capability of coding and decoding signals are enhanced by using a double-peak interval invisible coding characteristic, and the system has the advantages of high anti-interference performance, dynamic and adjustable coding, high environmental adaptability and the like. The problem that a traditional laser signal is easy to intercept or interfere can be effectively solved.

The invention discloses a highly integrated V-band broadband multichannel multimode detector front-end chip, which belongs to the field of millimeter wave integrated circuits and comprises a phase-locked loop module PLL, a radio frequency local oscillator chain module LO, a dual-transmitting channel module TX, a dual-receiving channel module RX, a pulse time sequence control module and an SPI configuration interface module. According to the invention, the problems of difficulty in broadband signal generation, serious multi-channel phase mismatch, complexity and low efficiency of a multi-mode system and difficulty in consideration of transmission link speed and power consumption in the existing V-band detector chip are solved.

The invention relates to a standardized integrated access method and system for operation energy efficiency data of marine equipment, and the method comprises the steps: constructing an energy efficiency data standardization system which comprises equipment types and core energy efficiency data, and generating a unified data identifier of the operation energy efficiency of the marine equipment through a five-level coding rule; first and second core energy efficiency data measurement values of marine equipment with a standard interface and without a standard interface are collected in a wired and wireless mode respectively, and after protocol conversion and GPS second pulse time synchronization, outrange cleaning and null interpolation preprocessing are carried out; mapping the multi-source data into a marine equipment operation energy efficiency unified data identifier through a mapping rule; the current working condition is judged based on the ship operation state information, the time window width and the polynomial order are dynamically adjusted, high-order polynomial fitting processing is conducted on the data subjected to unified identification, and high-quality standardized energy efficiency data are output and transmitted to the ship energy efficiency management platform; and adaptive quality control and standardized integrated access of the multi-source heterogeneous energy efficiency data are realized.

The invention discloses a quantum phase-locked detection method based on entanglement enhancement, and the method comprises the steps: encoding quantum bits in a ground state and an excited state, and preparing the quantum bits into an initialized quantum state; loading a periodic multi-pulse sequence to act on the quantum bits; and loading a carrier pulse resonating with the ground state and the excited state, detecting the final quantum state of the quantum bit, and comparing curves of each component of the measurement density matrix and the theoretical density matrix changing along with the pulse time interval of the periodic multi-pulse sequence to obtain the half cycle and the amplitude of the sine wave to be measured. According to the method, measurement noise under the condition that the rotation angle and the detuning error exist can be effectively restrained, high measurement precision is kept under the condition that the rotation angle and the detuning error exist, and the robustness enables the method to be more reliable in practical application.

The embodiment of the invention provides an auxiliary card searching module and method and near field communication equipment. Wherein the auxiliary card searching module comprises a pulse detection unit, a control unit and a modulation unit; the control unit is respectively connected with the pulse detection unit and the modulation unit; the pulse detection unit is used for generating a trigger signal within a preset duration based on a response signal of an equipment antenna of the slave equipment; the response signal is generated by the device antenna of the slave device in response to a radio frequency signal sent by the master device; the preset time length is smaller than the pulse time length of a radio frequency signal sent by the main equipment; and the control unit is used for controlling the modulation unit to perform state switching according to the trigger signal so as to promote the main equipment to enter a polling mode.

The present invention discloses a gas overflow detection method and a diaphragm gas meter, belonging to the technical field of gas meters. The method comprises: using a first timer with a first timing step to measure the pulse time interval of the diaphragm gas meter; when the count value of the first timer corresponding to the current pulse time interval is less than or equal to the first counting threshold, using a second timer with a second timing step to measure the subsequent pulse time interval of the diaphragm gas meter; the second timing step is less than the first timing step; when the count values ​​of the second timer in the pulse time intervals of a preset number of consecutive times are all less than or equal to the second counting threshold, confirming that an overflow anomaly occurs; the first or second counting threshold is the count value corresponding to the pulse time interval corresponding to the overflow threshold when the first or second timing step is used for measurement; the preset number is less than the number of complete pulse time intervals that pass within the detection time limit when gas is leaking at the overflow threshold. The present invention can timely and accurately detect gas overflow anomalies.

The invention relates to the technical field of vibration testing, in particular to a vibration testing method and system for millet processing equipment, and the method comprises the following steps: synchronously collecting an original vibration signal and a key-phase signal at a motor shaft of the millet processing equipment, carrying out the equal-angle interval re-sampling of the original vibration signal according to the pulse time of the key-phase signal, and obtaining a re-sampling signal; and constructing a rotating speed synchronization segmented signal matrix composed of a plurality of rotating speed periods, and superposing and averaging all signal segments in the rotating speed synchronization segmented signal matrix to obtain a rotating speed synchronization period signal. According to the method, the original vibration signal and the key phase signal are synchronously collected at the motor shaft, re-sampling at equal angle intervals is executed according to the pulse time of the key phase signal, superposition average processing is performed after the rotation speed synchronous segmentation signal matrix is constructed, synchronous suppression of rotation period disturbance is achieved, and therefore purer periodic vibration characteristics are obtained.

The invention discloses a rolling bearing fault diagnosis method, device and equipment, a medium and a product, and relates to the technical field of bearing fault analysis. The method comprises the following steps: respectively sending acceleration time-domain analog signals acquired by an acceleration sensor into two different processing branches, and then, on one hand, obtaining an impact pulse signal frequency spectrum line through Nome analysis; on the other hand, through band-pass filtering processing, half-wave rectification processing, waveform envelope processing, low-pass filtering processing, analog-to-digital conversion processing, impact pulse extraction processing and signal enhancement processing, an impact pulse time domain digital signal is obtained; then, based on the processing result, an impact pulse frequency domain effective value, an impact pulse time domain effective value and a peer-to-peer principle proportionality coefficient are obtained through calculation, finally, the impact pulse time domain digital signal and the proportionality coefficient are multiplied, and a corrected impact pulse time domain digital signal is obtained; and calculating to obtain a rolling bearing state evaluation parameter for fault diagnosis of the rolling bearing.

The invention discloses an atomic clock group time frequency standard device for a power system, and the device comprises an atomic clock group sub-system which is used for generating a 1pps second pulse time signal and a 10Mhz frequency signal; the time-keeping and time-keeping system is connected with the atomic clock group system and outputs a 1pps second pulse time signal and a 5Mhz frequency signal; the signal generation subsystem is connected with the time-keeping and time-keeping system and is used for generating a 1pps second pulse time signal, a 10Mhz frequency signal and a transmission signal; the remote comparison subsystem is connected with the signal generation subsystem and traces the local courtyard time to the time frequency measurement reference in real time; the internal time comparison and monitoring subsystem is connected with the atomic clock component subsystem and the signal generation subsystem and is used for realizing time difference monitoring and phase difference detection; and the comprehensive control subsystem is connected with the internal time comparison and monitoring subsystem, the remote comparison subsystem and the time-keeping and time-keeping system.

The invention relates to the technical field of radars, in particular to a weather radar distance resolution calibration method and system. The method comprises the following steps: collecting oversampling original baseband I / Q data of a point target in a plurality of continuous pulse periods; determining a pulse signal-to-noise ratio, and screening out effective pulses according to a threshold value; carrying out sub-sampling stage time alignment on the effective pulses based on cross-correlation analysis, and carrying out incoherent averaging on power module values of all the aligned pulses to generate an average pulse power envelope; converting the average pulse power envelope to a logarithm domain, and selecting discrete data points in a main lobe region; according to the discrete data points, a nonlinear least square method is adopted to carry out iterative fitting on the generalized Gaussian mathematical model, and a continuous analytic function describing the pulse envelope is obtained; according to the continuous analytic function, determining a pulse time width when the power is reduced to a peak value of-6dB; and determining the real distance resolution according to the pulse time width. The measurement robustness is improved, and sub-meter calibration precision is achieved.

The invention relates to the technical field of electric digital data processing, and discloses an Internet of Things water meter operation mode monitoring method, which comprises the following steps: acquiring an original pulse sequence acquired by a sensor and extracting a pulse time interval sequence; mapping based on the pulse time interval sequence and the system structure characteristic parameters to obtain an equivalent response numerical sequence; constructing a feature vector unit according to the evolution slope between the adjacent numerical points; extracting slope symmetry features of the feature vector units and matching the slope symmetry features with a physical causal criterion so as to separate continuous feature signals and asymmetric noise signals; according to the method, fluid kinetic energy time domain evolution characteristics are represented by using a nonlinear mapping mechanism, accurate decoupling of a real water load and a pipe network disturbance pseudo signal is realized through physical causal verification, the difficult problem of micro flow identification under a complex working condition is effectively solved, and the monitoring robustness of a system is enhanced.

The present invention discloses a wax model laser marking machine, comprising: a laser marking head; a controller, the controller is electrically connected to the laser marking head; further comprising: a fixture mounting platform, the laser marking head corresponds to the position of a workpiece to be processed on the fixture mounting platform; an XY axis moving mechanism, the fixture mounting platform is connected to the XY axis moving mechanism, and the XY axis moving mechanism is electrically connected to the controller; wherein the central wavelength of the laser marking head is between 780nm and 1100nm, and the pulse time of the laser marking head is 10 ‑11 s~10 ‑12 s, the pulse frequency of the laser marking head is 100kHz~300kHz, the average power of the laser marking head is 10W~30W, and the marking time of the laser marking head is 10s~30s. This solves the problems of easy wrong marking, poor marking effect and low marking efficiency in the prior art.

The invention discloses a finite time output synchronization method for a heterogeneous generator system based on pulse control. The method comprises the following steps: firstly, designing a finite time controller based on pulse control for a generator system with heterogeneous characteristics; and then, by virtue of a finite time stability definition established by a differential inequality with a pulse effect based on a Lyapunov functional, a global Lipschitz condition and an inequality property, obtaining sufficient and necessary conditions for realizing finite time output synchronization, and realizing synchronization of a generator system network. A finite time stability definition established by a differential inequality with a pulse effect is used for estimating different pulse times and the number of pulses under an initial value, so that stable time estimation is obtained. When the method is applied to a heterogeneous generator system, the stabilization time of the system for realizing output synchronization is reduced, and the power supply efficiency of the generator is improved.

The invention discloses a synchronous self-calibration cable distributed partial discharge detection calibration positioning device and method, and relates to the technical field of power system cable insulation state detection. The device comprises an upper computer and at least two acquisition and detection systems, for any acquisition and detection system, the detection module receives the control signal and outputs a synchronous calibration signal; the pulse calibration unit excites a calibration pulse signal on the cable shielding grounding wire according to the synchronous calibration signal, and takes the obtained excitation pulse signal as a time reference signal; the detection module determines a pulse time difference based on the time reference signal; the upper computer calibrates the adjacent acquisition and detection systems according to the pulse time difference, and performs waveform comparative analysis on acquired data acquired after calibration to obtain an analysis result; the analysis result is used for realizing detection positioning based on waveform time delay. The invention aims to realize synchronous function calibration and partial discharge detection positioning of cable distributed partial discharge detection.

A water meter bearing wear state monitoring method and system based on a flow rate working condition relates to the field of electric digital data processing, and the method comprises the following steps: monitoring the generation frequency of a metering pulse on a target water meter, and determining whether the current metering working condition of the target water meter is a high flow rate working condition or a low flow rate working condition based on the generation frequency; counting a first pulse time interval sequence under the low flow speed working condition, and calculating a dispersion characteristic value of the first pulse time interval sequence as a first state characteristic value; counting a second pulse time interval sequence under the high flow rate working condition, and calculating a dispersion characteristic value of the second pulse time interval sequence as a second state characteristic value; based on the first state characteristic value and the second state characteristic value, calculating a working condition response index representing the wear degradation effect of the water meter bearing on the target water meter; when the working condition response index is larger than a preset abrasion judgment threshold value, abrasion early warning information corresponding to the target water meter is generated. By implementing the application, the water meter maintenance cost can be reduced.

The invention relates to the technical field of digital-to-analog conversion, in particular to a large-dispersion compact chirped pulse time domain compression method, which comprises the following steps of: projecting a broadened chirped pulse to a first grating in an inclined incidence mode, and moving adjacent back and forth diffraction spots point by point in a direction parallel to a grating scribed line; the first grating and the second grating are oppositely arranged in parallel to form a double-grating group; controlling the chirped pulse to perform multiple back-and-forth diffraction between the first grating and the second grating to obtain a preset large dispersion amount; an angular dispersion steering module is arranged on a back-and-forth diffraction light path of the chirped pulse, and vertical angular dispersion introduced due to oblique incidence is turned into horizontal angular dispersion. An angular dispersion compensation module is arranged on a light path before the chirped pulse is output, and the angular dispersion accumulated by multiple back-and-forth diffraction is offset and compensated. According to the method, on one hand, the dispersion amount several times that of a traditional pulse time domain compressor can be obtained, on the other hand, the compact design of the structure of the compressor can be achieved, and the method has important engineering application value.

The invention belongs to the technical field of photoelectronic devices, and relates to a multifunctional waveguide type photoelectronic device based on a phase change material and application thereof, specifically, positive bias pulse is applied to the photoelectronic device, so that the phase change material is converted from a crystalline state to an amorphous state, and at the moment, the photoelectronic device is used as a heater or a waveguide phase shifter; a first positive bias pulse is applied to the optoelectronic device, so that the phase change material is completely converted from a crystalline state to an amorphous state, then a second positive bias pulse is applied to the optoelectronic device, so that the phase change material is converted from the amorphous state to the crystalline state, and at the moment, the optoelectronic device is used as an optical attenuator or an optical detector or a waveguide phase shifter. The voltage of the first positive bias pulse is larger than the voltage of the second positive bias pulse, the pulse time of the first positive bias pulse is smaller than the pulse time of the second positive bias pulse, high-loss and low-loss switching of the optoelectronic device can be achieved, and the optoelectronic device has the unique function of integrating detection and adjustment.

The invention discloses a method for testing trajectory transport parameters of a pulse-excited transistor at an ultralow temperature, and belongs to the field of semiconductor device characterization. According to the method, the self-heating effect intensity of a device is actively controlled by adjusting the pulse time at the environment temperature lower than 10K, and the source-drain saturation current of the transistor in different self-heating states is measured; the true temperature of the channel is inverted by using source-drain saturation current in different self-heating states; and calculating the back scattering probability and the ballistic transport efficiency by researching the dependency relationship between the changes of the threshold voltage and the source-drain saturation current and the channel temperature. According to the method, parameter extraction errors caused by inconsistency of the environment temperature and the channel temperature in a traditional method are solved, the intrinsic ballistic transport efficiency parameters of the device can be accurately obtained, and the method is suitable for high-performance planar transistors with silicon, germanium and III-V group compounds as carrier channels, fin type three-dimensional grids and transistors with ring gate-nanowire structures.

The touch equipment comprises a touch panel and a touch driving device. The touch driving device drives the touch panel. The touch driving device comprises a driving signal generating circuit and a reading circuit. The drive signal generation circuit generates a drive signal for driving the touch panel, wherein the drive signal includes a first pulse time and a second pulse time for driving a same touch sensor in the touch panel. The drive signal generation circuit changes at least one waveform parameter of the drive signal with a first change strategy such that the at least one waveform parameter of the first pulse time is different from the at least one waveform parameter of the second pulse time. The reading circuit reads a touch event sensing result of the touch panel.