11 results about "Parallel excitation" patented technology

The invention belongs to the technical field of detection, and particularly relates to an optical device for pore plate fluorescent material detection, which comprises a tunable laser light source, a reflective optical fiber collimator, an optical filter assembly, a beam splitting cube, a beam expanding lens group and a microlens array, the beam splitter is used for splitting the expanded light beams and focusing the light beams to all the sample holes at the same time to realize parallel excitation. Parallel excitation and detection are achieved through the microlens array, chromatic aberration is eliminated through the reflective light path design, the problems that a traditional hole-by-hole detection mode is low in efficiency and prone to causing fluorescence quenching and protein inactivation are effectively solved, the detection efficiency and precision are remarkably improved, and the detection cost is reduced. The method has a wide application prospect in the fields of biomedical research and clinical diagnosis.

The invention relates to an external excitation inductance parameter design method, a resonant converter and an electric energy conversion system. The method comprises the following steps: determining design indexes and electrical performance parameters of the resonant converter; setting target dead zone time; determining a first expression, a second expression and a third expression of the external parallel equivalent excitation inductor; calculating according to the design indexes, the electrical performance parameters, the target dead zone time, the first expression, the second expression and the third expression, and judging whether the inductance value of the external parallel equivalent excitation inductor meets the requirement or not; if the requirements are met, parameter design of the external parallel equivalent excitation inductor is completed; and if not, readjusting the target dead zone time. According to the LLC resonant converter, the overall efficiency of the LLC resonant converter can be remarkably improved, the LLC resonant converter is suitable for batch and automatic engineering design, the innovative structural design of the external parallel excitation inductor can be flexibly and accurately adjusted, the structure of the main magnetic core does not need to be changed, and the limitation of conventional air gap adjustment is broken through.

The application discloses an end-to-end pulse neural network industrial process fault diagnosis method, and belongs to the field of fault diagnosis and brain-like computing. The method is characterized in that the end-to-end fault diagnosis is performed through a pulse coding module, a multi-scale feature extraction module, a parallel excitation-inhibition module and a pulse decoding module. First, the input process variables are encoded into pulse sequences by using convolution layers and pulse neuron layers with different receptive field sizes. Then, multi-scale high-dimensional features related to faults are extracted by using multi-scale convolution layers, and the extracted multi-scale features are selectively focused by using a channel attention mechanism. Subsequently, the features related to faults are further extracted by using parallel excitatory pulse pathways and inhibitory pulse pathways. Finally, the extracted features are decoded to obtain fault diagnosis results by using convolution layers and fully connected layers. The method can accurately diagnose the faults occurring in industrial processes, and has lower energy consumption compared with traditional methods.

The invention discloses a piezoelectric electromagnetic bimorph sensing structure and a simulation analysis method thereof, and relates to the technical field of sensor design and simulation. The structure comprises a PZT5H piezoelectric layer, an AFC260 alloy elastic blade layer and a PZT5H piezoelectric layer which are stacked in sequence, terminal-ground-terminal parallel excitation is adopted to induce bending vibration, and the resonant frequency can be accurately tuned within the range of 2327 kHz through additional mass. The structure can be further compounded or coupled with a FeGa magnetostrictive layer to form a magnetoelectric sensing unit for non-contact current measurement. According to the matched simulation method, accurate prediction and optimization of resonant frequency, vibration amplitude and stress distribution are realized through parametric modeling, grid encryption, electromechanical / magnetoelectric multi-physics field coupling analysis and stress evaluation. The device is high in integration level and flexible in tuning, remarkably shortens the development period through simulation driving design, improves the reliability, and is suitable for the field of power monitoring and micro sensing.

The internal detection differential mode eddy current probe is composed of three spiral coils and comprises a pair of parallel excitation coils and a detection coil, the excitation coils comprise two pairs of coils connected in parallel, and the two pairs of excitation coils are arranged front and back in the axial direction of a supporting shell. The detection coil is arranged between the two pairs of exciting coils and is orthogonal to the exciting coils, and a magnetic core is additionally arranged between the detection coils to enhance magnetic flux convergence; the winding of the two exciting coils needs to meet the right-hand spiral rule, so that the starting directions of magnetic fluxes generated by the exciting coils are respectively along the two sides of the probe and are finally converged at the magnetic core of the detection coil; when the eddy current defect detection system performs defect detection, the probe scans along the axial direction of the excitation coil, the detection coil captures the change of an induced magnetic field and uploads the change to the computer, and the computer detects different defect information through analysis and processing, so that internal detection of tiny hole-shaped defects and pipeline surface corrosion is realized.

The present invention discloses an aggregation-induced luminescence material, a preparation method thereof, and an application thereof. The structural formula of the luminescent material is as follows: #imgabs0# This material introduces two tetraphenylethylene (TPE) structures into a fluoroboron dipyrrole dye, and has better aggregation-induced luminescence performance in solution, with a quantum yield of 86%. At the same time, the aggregation-induced luminescence material is introduced into a laser design with whispering gallery properties, thereby improving the energy utilization efficiency of the excitation laser, while significantly reducing the detection threshold and improving the laser stability, thereby realizing a low-threshold organic dye microcavity laser. The system and method of the present invention can also achieve parallel excitation of multiple microbubble cavities by adjusting the laser spot, which has the advantage of achieving multi-wavelength output. And there is no need to pull a tapered optical fiber to introduce pump light, and the device is more robust. The process of the present invention is simple, easy to operate, easy to replace liquid, and has a low production cost, which broadens the application prospects of organic materials in micro-nano lasers, materials, and detection fields.

The invention provides a pre-balanced parallel excitation method and device, and belongs to the technical field of lithium ion batteries, and the method comprises the steps: starting equipment, switching a relay to a current sharing gear, and carrying out the current sharing of different parallel battery monomers until the equipment detects that the current sharing is completed; switching the relay to an excitation gear, and carrying out an impedance test; and collecting excitation current and response voltage flowing through each parallel single body, switching the relay to a current sharing gear after the test is completed, and ending the test. The battery pack does not need to be disassembled to damage the integrity of the battery pack. Impedance data of all the batteries under the same SOC can be collected at a time, and compared with traditional single-channel equipment, the detection time can be saved by more than 99%.

The invention provides a synchronism detection and abnormity protection device and method for a spacecraft multi-set parallel excitation vibration test system, and the device comprises a vibration controller, a vibration table, power amplifiers, a current sensor, an acceleration sensor, and a synchronous detection circuit box. Each power amplifier is in power signal connection with an independent vibration table, each power amplifier is connected with an independent current sensor, each vibration table is connected with an independent acceleration sensor, and the current sensors and the acceleration sensors are in signal connection with a synchronous detection circuit box. And the synchronous detection circuit box is in signal connection with the vibration controller.

The utility model belongs to the technical field of vibration test, and discloses a parallel excitation vibration test device, which comprises a plurality of vibration tables, a test tool, an external guide assembly and a connecting piece, and is characterized in that the plurality of vibration tables are arranged at intervals along the linear direction; the test tool is used for mounting a test piece; one end of each connecting piece is in transmission connection with the output end of the corresponding vibration table, and the other end of each connecting piece is in rigid connection with the test tool; the external guide assembly is arranged in the circumferential direction of the test tool in a surrounding mode, one end of the external guide assembly is fixedly connected to the foundation, and the other end of the external guide assembly is fixedly connected to the test tool so that transverse shaking of the test tool can be reduced. The test tool is in rigid transmission connection with the vibration table through the connecting piece, the external guide assembly provides guidance for vibration of the test tool, transverse shaking of the test tool can be reduced, the ability of the test tool to move in the vertical direction is improved, and therefore a plurality of vibration tables can be connected, the number of control points is increased, and the vibration magnitude and the frequency range are improved. And various test requirements are met.

The embodiment of the application provides a fusion system of a phase modifier and an in-station energy storage of a new energy power station, comprising: a phase modifier and an energy storage system arranged in the new energy power station, the fusion system comprises an energy storage independent excitation mode, an energy storage excitation and self-parallel excitation complementary mode, an energy storage independent starting mode and an energy storage standby starting mode, the application can effectively fuse the phase modifier and the energy storage system in the new energy power station, improve the reliability of the phase modifier equipment and the utilization rate of the energy storage system, and fully play the supporting role of the phase modifier on the new energy power grid.

This invention discloses an ultra-wideband side-fire Vivaldi phased array antenna conformally to the surface of a flight platform fuel tank, and the flight platform fuel tank itself. The antenna body includes: a dielectric substrate layer conformally to the composite material surface of the flight platform fuel tank, and a metallic radiating layer and a feed network layer attached to the upper and lower surfaces of the dielectric substrate. The metallic radiating layer has a mirror-symmetrical bidirectional extension structure; it has gradually widening outward-facing slots and a circular resonant cavity on both sides, achieving a side-fire effect after conforming to the cylindrical surface. The feed network uses a microstrip line structure to provide parallel excitation signals to the metallic radiating structure. This invention is suitable for large-area array deployment on the surface of a flight platform, effectively solving the contradiction between low antenna profile, wide bandwidth, and high-gain side-fire while maintaining the aerodynamic shape.