78 results about "Dual pulse" patented technology

The invention provides a double-pulse high-frequency switching power supply control method and system for precise electroplating, and relates to the field of electroplating, and the method comprises the steps: collecting area surface data through a three-dimensional scanner, and obtaining a three-dimensional model; extracting a high-curvature area grid according to the three-dimensional model, and calculating to obtain a surface concave-convex degree index; performing current field simulation, and calculating current density vector distribution; when the deviation of the current density vector distribution exceeds a preset deviation threshold value, pulse parameters are optimized through a genetic algorithm; selecting a pulse parameter which is most matched with the surface concave-convex degree index, and carrying out iterative calculation to obtain updated current density vector distribution; based on the difference between the updated current density vector distribution and the initial distribution, predicting a coating thickness value, and determining a preliminary evaluation index; and optimizing pulse parameters to obtain a final control scheme of uniform current distribution. According to the method, pulse parameters can be dynamically optimized according to the geometrical shape of the workpiece, and uniform current distribution and stable plating quality are realized.

The invention discloses a nanosecond particle velocity measurement method based on orthogonal line polarization beam splitting, and belongs to the technical field of particle image velocity measurement. The method comprises the following steps: providing two linear polarization state orthogonal double-pulse lasers, and respectively outputting S polarization pulse light beams and P polarization pulse light beams; the four pulse light beams are combined through the double-path laser beam combining mirror set and output to the sheet light mirror set, and a plane illumination jet flow field with the thickness smaller than or equal to 1 mm is formed; scattered light is separated according to a polarization state by using a polarization beam-splitting cubic prism, and particle images under S polarization and P polarization are respectively captured by two double-exposure cameras which are orthogonally arranged; five kinds of time sequence control are triggered through a multi-channel synchronous controller; processing the view field deviation of the two cameras by adopting a block polynomial alignment method; and calculating a particle velocity field based on a particle tracking velocity measurement algorithm. According to the invention, the polarization debugging error is reduced, the homogeneity error after beam combination is obviously reduced, the coincidence degree of the four beams of planar light is improved, and a high-precision universal alignment scheme is provided for the multi-camera PTV technology.

The invention discloses a method and system for testing electromagnetic radiation characteristics of an IGBT module for a converter valve, and the method comprises the steps: selecting an inductive load connection mode according to the position of an IGBT to be tested during testing: testing an upper IGBT, and connecting the two ends of an inductive load with a first wiring terminal and a second wiring terminal (the first wiring terminal is a neutral point between the upper IGBT and a lower IGBT) of the converter valve; and when the lower tube IGBT is tested, the first wiring terminal and the positive terminal of the bus capacitor are connected. A combined electromagnetic field probe is arranged around the IGBT to be detected, a probe shell is grounded, and a lead is connected with a signal conversion device. Firstly, a bus capacitor is charged to a stable voltage, and environmental background noise is collected by a probe when no gate pole is triggered. And pulse parameters are set by the upper computer and are sent to the driving board through the optical fiber to trigger the IGBT double-pulse action. Electric signals output by the probe are converted into optical signals through the photoelectric converter and transmitted to external equipment through the optical fiber to be restored. And subtracting background noise from a double-pulse measurement result, extracting a net radiation electromagnetic signal, and separating electromagnetic interference signals in different processes according to the switching time of the IGBT. The invention aims to accurately measure the radiation electromagnetic interference signal of the IGBT in the converter valve module in the switching-on, switching-off and diode follow current processes, and provides a basis for the electromagnetic compatibility design and shielding reinforcement of the converter valve module.

The invention discloses a double-end photoelectric synapse element based on two-dimensional intrinsic ferroelectricity and TMDs Van der Waals heterojunction as well as a preparation method and application of the double-end photoelectric synapse element, and belongs to the technical field of photoelectric synapses. The element comprises a substrate layer, a channel layer and a packaging layer which are stacked in sequence, the channel layer is formed by stacking a single layer of two-dimensional TMDs and a two-dimensional intrinsic ferroelectric alpha-indium selenide layer; a source electrode is deposited on the TMDs, and a drain electrode is deposited on the alpha-indium selenide layer. The preparation method of the element comprises the following steps: cleaning the substrate layer, growing the single-layer two-dimensional TMDs through a CVD (chemical vapor deposition) method, and stacking the two-dimensional intrinsic ferroelectric alpha-indium selenide layer on the single-layer two-dimensional TMDs to obtain a precursor; the precursor is sequentially subjected to primary annealing, etching and electrode evaporation, and then is subjected to secondary annealing, so that the electrode is obtained. The element adopts photoelectric signal hybrid regulation and control, is used for preparing an artificial brain-like synapse device, and can effectively solve the problems of high power consumption and low dipulse dissimilation index in the prior art.

The invention discloses a double-pulse test protection circuit, relates to the field of power electronics, and is characterized in that a third switch, a current detection device and a control module are additionally arranged on the basis of an original double-pulse test circuit, and the purpose of the scheme is to collect the current value of a loop where an inductor is located through the current detection device; when the current value of the loop where the inductor is located is larger than a preset current threshold value (the current value of the loop is too high), the first switch is automatically switched off through the control module, and then the whole double-pulse test protection circuit is switched off. The current value in the double-pulse test protection circuit is not increased any more, and the reliability and safety of the scheme are ensured.

The present application provides a double-pulse test method, circuit and system. The double-pulse test method controls the inductance of the load inductor connected to the module to be tested to be less than the first threshold value during the first pulse of controlling the conduction of the switch tube to be tested. That is, even if the module to be tested adopts a load inductor with a smaller inductance during the first pulse, the energy transmitted from the DC bus capacitor to the load inductor can be reduced, and the degree of bus voltage drop of the high-power module when performing double-pulse testing can be reduced; no external capacitor pool is required, thereby avoiding the problem of low accuracy of test results caused by the external capacitor pool in the prior art. In addition, after the end of the first pulse, the present application can adopt a load inductor with a larger inductance. Therefore, during the double-pulse interval, the energy consumption of the load inductor is slow, and the current difference between the load inductor at the beginning of the second pulse and the end of the first pulse is small, thereby ensuring the accuracy of the test results.

The invention discloses a multi-modal AI material quantitative and qualitative rapid detection method, which comprises the following steps: acquiring multi-modal data through a double-pulse laser excitation system, carrying out time-space alignment, and cooperatively exciting light and heavy element characteristic plasmas by using femtosecond laser and nanosecond laser; spectral decoupling and dynamic compensation are carried out based on physical rule embedding, spectral signals are separated, and interference is suppressed; a light-heavy element dual-channel deep learning model is constructed, and multi-modal data is fused, so that feature extraction and prediction capabilities are improved; and a double-source mutual verification optimization model is adopted, so that the result reliability is ensured. According to the method, the limitation of single-mode detection is overcome, multi-component high-precision real-time synchronous detection of coal is realized, the adaptability of the model to complex coal quality and environmental change is improved, and an effective and accurate solution is provided for online monitoring of coal quality of a coal-fired power plant.

This invention discloses a method for enhancing and controlling the radiation of an LPP-EUV light source based on dual-pulse spatiotemporal co-constraint, belonging to the field of semiconductor manufacturing technology. This invention obtains a spatiotemporal reference by real-time monitoring of a liquid metal droplet, uses a pre-pulse laser to induce target material deformation into a fogged target cloud, and combines high-speed imaging and a hydrodynamic model to predict the time and coordinates of the target cloud's energy absorption peak. It dynamically adjusts the delay time and optical axis direction of the main pulse laser to achieve dual-pulse spatiotemporal co-constraint, and constructs a closed-loop control system through a recursive least squares algorithm with a dynamic forgetting factor. This invention effectively improves the extreme ultraviolet light conversion efficiency, controls the power fluctuation of the light source within ±0.5%, and extends the maintenance cycle of optical components by 2 times. It can be widely applied to next-generation high-power extreme ultraviolet lithography light source systems, meeting the application requirements of semiconductor miniaturization processes.

The present invention discloses a dual-pulse test system, which is configured to include: a load inductor, a test power supply is connected to a power device under test through the load inductor; a first freewheeling device, after the power device under test is tested, it forms a freewheeling loop with the load inductor; a pulse generator, which is used to provide the dual pulses required for testing the power device under test; and a failure protection circuit, when the power device under test is in a failure state, it cuts off the test power supply and constructs a freewheeling loop to make the loop current no longer increase. The present invention is configured with a failure protection circuit, which can timely cut off the power supply when the power device under test is in a failure state, and can form a freewheeling loop to realize that the loop current no longer increases, preventing the device from being burned out due to the failure of the power device under test, and playing a protective role.

The invention relates to a double-pulse test method and a test circuit. The method comprises the following steps: providing a double-pulse test circuit; the double-pulse test circuit comprises an energy charging circuit and a resonance circuit, the resonance circuit is a half-bridge LC resonance circuit or a full-bridge LC resonance circuit, and the energy charging circuit comprises a power supply and a bus capacitor; the bus capacitor is charged through the power supply; in response to charging the bus capacitor to the target voltage, disconnecting the power supply from the bus capacitor and the resonant circuit; and applying a control voltage to the control ends of the upper bridge and the lower bridge in the resonant circuit, obtaining a gate-source voltage, a drain-source voltage and a drain-source current of each switching tube in the resonant circuit under the control voltage, and obtaining a test result according to the gate-source voltage, the drain-source voltage and the drain-source current. According to the invention, the characteristics of the MOS tube in the LLC converter during actual work can be analyzed. Based on the test result obtained by the method, an important reference basis can be provided for model selection of the primary MOS transistor of the LLC converter, and poor products caused by design errors and improper model selection are avoided.

The present application relates to the field of integrated circuit technology, and provides a pulse trigger type level shift circuit, which comprises a double pulse current generating circuit, a high-low level shift conversion holding circuit, a high voltage domain output shaping filter circuit and an RS flip-flop connected in sequence. The double pulse current generating circuit generates a short double pulse current signal in response to a jump edge of a low voltage domain input signal; the high-low level shift conversion holding circuit combines the current signal with the input signal to generate a complementary pulse voltage signal in a high voltage domain; the shaping filter circuit shapes and filters the pulse voltage; and the RS flip-flop finally latches the logic state and outputs a stable high voltage domain signal without glitches. The present application generates an extremely short pulse only when the signal jumps by means of pulse current trigger, eliminates the static current path, and has low static power consumption. Meanwhile, the pulse driving is used to realize fast level inversion under high voltage difference, and the input signal driving capability requirement is low, so that the high speed and low power consumption characteristics are taken into account.

This application discloses a double-pulse testing device and method for power semiconductors, belonging to the field of power semiconductor technology. The device includes: a global control module, used to generate a parameter package based on the test task and characteristic parameters of the target device when a double-pulse test is to be performed on a target device, send the parameter package to a target local execution module, and iteratively adjust the parameter package based on the double-pulse test results of the target device fed back by the target local execution module, while simultaneously sending the iteratively adjusted parameter package to the target local execution module until the double-pulse test results of the target device fed back by the target local execution module meet the test objective; and a target local execution module, used to perform double-pulse testing on the target device according to the parameter package issued by the global control module, and to feed back the double-pulse test results of the target device to the global control module. This device can improve the efficiency and accuracy of double-pulse testing of power semiconductors.

This invention discloses a design method for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors. It identifies key parasitic parameters by building a dual-pulse simulation platform, completes device layout in conjunction with the overall system structure, uses PCB symmetry and copper layer stacking to control parasitic parameter consistency, and forms a design closed loop through dual-pulse and steady-state thermal testing. This effectively solves the problem of poor current sharing in parallel silicon carbide single transistors. Furthermore, this method ensures balanced current distribution during switching transients and conduction steady states, eliminates current sharing failures caused by parasitic parameter mismatch, fully utilizes the performance of silicon carbide single transistors without requiring amplification device margins, flexibly adapts to the overall system layout, improves space utilization, optimizes system efficiency, reduces design costs and redundancy, and achieves a reliable, efficient, and highly adaptable design for parallel current sharing of BOOST multiphase interleaved silicon carbide single transistors.

The invention discloses a double-pulse gold-silver alloy electroplating system which comprises an annular EIS sensor module, a double-channel out-phase pulse power supply module, a fuzzy PID dynamic control module and a micro-injection compensation module. The annular EIS sensor module is annularly distributed along the inner wall of the electroplating bath, comprises an impedance spectrum detection electrode and an ion selection membrane, and is used for monitoring the concentration of Au2 + / Ag + in real time and detecting the impedance gradient of a deposited layer. The dual-channel out-phase pulse power supply module comprises six groups of independent temperature control pulse anode groups, and each group is connected with a dual-channel power supply comprising an Au channel and an Ag channel. The fuzzy PID dynamic control module receives the concentration deviation value and the impedance gradient data, and pulse power supply parameters are adjusted through a multivariable coupling algorithm. The micro-injection compensation module is arranged on the side wall of the tank body and comprises eight groups of micro-injection pumps, and liquid supplementing is triggered when the consumption difference value of the metal salt exceeds 5%. Accurate control over the gold-silver alloy electroplating process is achieved, and the quality and consistency of a plating layer are improved.

The invention discloses a power module stray inductance test method and test platform, and relates to the field of power module stray inductance test, the method comprises the following steps: 1, constructing a test circuit, connecting a power module to be tested and a test accompanying power module in series, and then connecting the power module to be tested and the test accompanying power module in parallel with a bus capacitor; step 2, configuring a test state, configuring an upper tube and a lower tube of the to-be-tested power module to be in a conducting state, configuring an upper tube of the accompanying test power module to be in a turn-off state, and applying a double-pulse signal to a control electrode of the lower tube of the accompanying test power module; 3, collecting test data, and collecting voltage Vds at two ends of the power module to be tested and the change rate of current flowing through the power module to be tested when the double-pulse signal controls the lower tube of the test accompanying power module to perform secondary conduction; 4, calculating a single-time stray feeling calculation value; and step 5, repeating the steps 2-4 for N times, and taking an average value of N single stray inductance calculation values obtained by N times of calculation as a power module stray inductance value obtained by measurement. The method improves the convenience and accuracy of the stray inductance test of the power module.

The purpose of the present invention is to improve the control accuracy of the opening / closing speed of an opening / closing body for opening / closing an opening in a vehicle body. An opening / closing body control device (10) is provided with: a rotation sensor (12) that outputs a first pulse signal and a second pulse signal having a phase difference (delta) from the first pulse signal; an edge detection unit (24) that detects a pulse edge of the pulse signal; a speed update unit (25) that measures and updates the opening / closing speed on the basis of the pulse signal at a predetermined update timing; and a motor control unit (26) that controls the motor (11) on the basis of the updated opening / closing speed. A speed update unit (25) executes a double-pulse update process in which the timing at which at least one of a first rising edge (E1u) and a first falling edge (E1d) is detected and the timing at which at least one of a second rising edge (E2u) and a second falling edge (E2d) is detected are set as update timings.

1. Name of this design product: Graphical user interface for double pulse testing of electronic equipment. 2. Purpose of this design product: for use in an electronic device. 3. The key design point of this design product lies in the graphical user interface. 4. The picture or photo that best illustrates the key points of the design: main view. 5. Other views are the conventional design of the product and are omitted. 6. Purpose of the graphical user interface: The main view is the main interface of the dual pulse test platform; click "Manual Test" in the upper middle part of the main view to enter the interface change status diagram 1; click "Automatic Test and Report" in the upper right part of the interface change status diagram 1 to enter the interface change status diagram 2.

The invention relates to a double-pulse modulation long-distance distributed optical fiber temperature sensing system which comprises a laser, laser output by the laser is transmitted to a grating and a first-stage laser modulator through a beam splitter, laser output by the first-stage laser modulator is transmitted to one port of a circulator through a first laser amplifier, and laser output by the second-stage laser modulator is transmitted to the other port of the circulator through a second laser amplifier. A lower port of the circulator is connected with the sensing optical fiber, a second lower port of the circulator is connected with the input end of the second laser amplifier, the grating and the output end of the second laser amplifier are connected with the signal processing module, and a second-level laser modulator is further arranged between the first-level laser modulator and the first laser amplifier. The laser pulse width output by the first-stage laser modulator is larger than that output by the second-stage laser modulator, and the first-stage laser modulator has laser intensity gain of at least one decibel. The dipulse modulation long-distance distributed optical fiber temperature sensing system provided by the invention has a relatively long detection distance under the condition that the resolution ratio is not reduced.

The utility model discloses a double-pulse test platform capable of preventing connection wires from falling off, and particularly relates to the technical field of double-pulse test platforms, which comprises an experiment table and a plurality of current clamps, and is characterized in that the right part of the upper end of the experiment table is fixedly connected with a control cabinet body, and the left part of the upper end of the experiment table is fixedly connected with an external inductor body; a plurality of bearing plates are fixedly connected to the middle of the upper end of the external inductor body in a linear array distribution mode, the current clamps and the bearing plates are movably installed in a one-to-one correspondence mode, and a plurality of anti-disengaging assemblies are arranged in the middle of the upper end of the external inductor body in a linear array distribution mode. Reset assemblies are symmetrically arranged on the left portion and the right portion of the upper side of each bearing plate, and limiting assemblies and clamping assemblies are symmetrically arranged on the left side and the right side of each reset assembly. According to the double-pulse test platform capable of preventing the connection wire from falling off, the anti-falling assembly is arranged, and after the current clamp is inserted into the slot arranged in the anti-falling assembly, the plug part of the current clamp is pressed.

The invention relates to a current density adjusting method, device and equipment for anode pulse electroplating. The method comprises the following steps: acquiring an anode pulse current of a current time period, and performing periodic reverse modulation on the anode pulse current based on a double-pulse current mode to obtain a reverse pulse current signal; performing closed-loop feedback adjustment processing on the anode pulse current based on the reverse pulse current signal to obtain an adjusted anode pulse current, and obtaining the anode pulse current density based on the electrical characteristics of the adjusted anode pulse current; determining a cathode potential change trend of the cathode region based on an electrical coupling relationship between the anode pulse current density and the cathode region, and performing compensation processing on a time sequence of the anode pulse current density based on the cathode potential change trend to obtain a current density adjustment strategy, and the pulse current density of the anode is kept in a preset dynamic change range in the pulse electroplating period. By adopting the method, the accurate dynamic control of the anode pulse current density can be realized.

The application provides a low-temperature double-pulse test platform and method, and relates to the technical field of power device testing.The platform comprises a refrigeration compressor, a cooling platform, an enclosure, an air extraction unit, a temperature acquisition unit, a parameter acquisition unit and a control unit.The control unit is used for acquiring surface temperature information of the power device to be tested, platform temperature information of the cooling platform and thermistor parameters under the action of a calibration pulse during the cooling process, determining the corrected equivalent junction temperature parameters of the power device to be tested, and controlling the double-pulse test loop to perform double-pulse testing when the corrected equivalent junction temperature parameters enter a target test temperature window.The method introduces a calibration pulse and thermistor parameters on the basis of a low-temperature environment, corrects and characterizes the actual thermal state of the power device to be tested, and controls the double-pulse testing time in combination with the target test temperature window, so as to improve the accuracy, consistency and repeatability of low-temperature double-pulse testing.

In some examples, a direct control on laser frequency for dual-pulse distributed acoustic sensing (DAS) apparatus may include at least one laser to transmit a laser signal. A semiconductor optical amplifier (SOA) may be operatively connected to the at least one laser to generate a plurality of pulses. A laser signal controller that is executed by at least one hardware processor may apply, between two pulses of the plurality of pulses, a relatively small-step to obtain laser signal emitted changes of optical frequency.

The invention provides a control method and device of a double-pulse testing device, a testing system and a storage medium, and relates to the technical field of electronic device testing. The method comprises the following steps: sending a first pulse to a to-be-tested IGBT device; the first pulse is used for controlling the to-be-tested IGBT device to be turned off after saturation conduction; continuously sending a plurality of second pulses to the to-be-measured IGBT device until the device temperature of the to-be-measured IGBT device rises to the target temperature, and measuring the switching characteristic of the to-be-measured IGBT device at the target temperature; wherein the pulse width of the second pulse is smaller than that of the first pulse, and the to-be-tested IGBT device works in a linear region within the duration of the pulse width of the second pulse. According to the invention, the performance test of the IGBT device in the high-temperature state can be realized by using the double-pulse test device.

The invention particularly relates to a method and a system for estimating the minimum velocity increment of multi-circle double-pulse orbit transfer under J2 perturbation. The method comprises the following steps: uniformly representing origin-destination orbit states as six spring equinox elements taking flat longitude as a phase quantity; aiming at a transfer structure of a first pulse, middle drift and a second pulse, determining a limited transfer turn number search window by utilizing a flat longitude drift characteristic and a pulse capability; a closed equality constraint system with the total variable quantity = the first pulse variable quantity + the middle-section drift variable quantity + the second pulse variable quantity is constructed, and it is ensured that the track state is strictly closed; pulse is decomposed into tangential, normal and radial components for cooperative solution, and a phase closed loop is realized by updating a semi-diameter increment; and performing low-dimensional nonlinear optimization in a limited number of turns to quickly obtain minimum speed increment estimation. According to the method, the calculation efficiency is remarkably improved while the precision is guaranteed, and the method is suitable for large-scale sequence optimization in the near-earth orbit multi-target access task.

The invention provides a SiC MOSFET short-circuit protection circuit, which comprises a double-pulse circuit and a desaturation short-circuit protection circuit, and is characterized in that a driving chip detects the double-pulse circuit through the desaturation short-circuit protection circuit; whether the device breaks down or not is judged by judging whether the drain-source voltage of the device exceeds the set threshold voltage or not, misoperation of short-circuit protection in the switching process is effectively avoided by designing the blanking time, the charging speed of the blanking capacitor during the short-circuit fault is increased, the blanking time is remarkably shortened, the device can be turned off more quickly, and the SiC MOSFET is protected against damage. The method is especially suitable for SiC MOSFETs with higher short-circuit current and weaker short-circuit endurance capability.

Embodiments of the present invention disclose a distributed fiber optic sound sensing system, device, and sound detection method. The system includes: a laser source assembly for generating a continuous initial laser; a coupler, whose input is connected to an output of the laser source assembly and is used to split the initial laser into a first laser beam and a second laser beam; an acousto-optic modulator, whose input is connected to an output of the coupler and whose output is connected to a first input of an interferometer or an input of an erbium-doped amplifier and is used to modulate the first laser beam into a single-pulse laser; and an interferometer for modulating the single-pulse laser into a dual-pulse laser and performing sound detection, while also interfering with the second laser beam to generate a reverse laser beam and thereby adjusting the frequency of the laser source assembly. This improves the signal-to-noise ratio and detection accuracy of the sensing system.

The application belongs to the technical field of laser radar, and discloses a laser radar system and a velocity measurement method based on an unequal-arm interferometer, which comprises a laser, a light splitting module, an optical amplification module, a transmitting light path, a receiving light path, a filtering module, an unequal-arm interferometer, two-way detection modules and a main control module; the main control module is used for controlling the system timing, collecting first to fourth electric signals for data processing, calculating a first phase according to the first and second electric signals, calculating a second phase according to the third and fourth electric signals, and finally obtaining the velocity information of the target according to the difference between the first and second phases. Compared with the prior art, the application utilizes the unequal-arm interferometer to make the echo signal delay self-interference, can obtain the Doppler shift information of the target, and thus obtains the velocity of the target. The scheme does not need to transmit double-pulse signals, does not need to perform coherent detection and Fourier analysis, or sweep the echo signal, and thus reduces the complexity of the system.

The invention discloses a double-wire double-pulse MIG welding power supply system based on fractional calculus. The double-wire double-pulse MIG welding power supply system comprises a host power supply, a slave power supply, a DSP control module, a master wire arc load and a slave wire arc load. One end of the host power supply is connected with a three-phase AC power grid, and the other end is connected with the main wire arc load. One end of the slave power supply is connected with the three-phase alternating current power grid, and the other end is connected with the slave wire arc load; the host power supply and the slave power supply are respectively connected with the same DSP control module, and the DSP control module is integrated with a fractional calculus control module; and the fractional calculus control module outputs four paths of pulse width modulation (PWM) signals to respectively control on and off of a switching tube of the host power supply and a switching tube of the slave power supply, so that the system enters a double-pulse mode to work. Complex nonlinear and time-varying dynamic characteristics of a welding arc and a molten pool system can be described and matched more accurately.

A non-volatile memory device includes control circuitry configured to apply a first program voltage to a selected word line, wherein a first subset of memory cells of the selected word line corresponding to a first set of data states are inhibited from programming with the first program voltage, and wherein the first program voltage is applied to a second subset of memory cells corresponding to a second set of data states. The control circuitry is further configured to discharge a first voltage of the selected word line to a second voltage level corresponding to a second program voltage, such that the second program voltage is applied to at least the first subset of memory cells. The control circuitry is further configured to perform a verify operation to verify whether the first subset of memory cells and the second subset of memory cells have completed programming. A method of programming memory cells of a non-volatile memory is also disclosed.

The invention discloses a system and a method for dynamically calibrating a pressure sensor by using double-pulse laser. According to the invention, the calibration is realized by adopting double-pulse triggering and a single pressure sensor, and the systematic deviation of a calibration result caused by errors, aging or non-periodic calibration of a standard sensor in a comparison type calibration method is avoided. The energy of the two pulse lasers is controllable, two times of laser-induced cavitation can be realized at the same focus, 'micro explosion 'with accurate space-time characteristics is formed, and a multi-peak shock wave environment under complex working conditions such as ship anti-explosion test and the like can be simulated. According to the invention, sequential control of the double-pulse laser is realized through the delay trigger, the interval time can be adjusted to a microsecond level, and dynamic characteristic detection of continuous impact by the pressure sensor is realized. The hidden peak is identified through a time domain signal slope analysis method, and a new method is provided for dynamic response bandwidth detection of the pressure sensor.