37results about How to "Achieve excitation" patented technology

The invention discloses an efficient multipath laser probe detecting system and method. The detecting system can divide laser sources into multiple paths and transmit the laser sources to multiple to-be-detected points through optical fibers, corresponding spectral signals are transmitted back to the detecting system after laser plasma is generated through excitation, finally, multi-point and simultaneous on-line detection by one laser probe instrument is finally realized, the optical fibers are used for transmitting laser and the spectral signals, accordingly, the anti-jamming capability of a laser probe in the severe environment can be improved, and the application cost of the laser probe instrument can be substantially reduced. The efficient multipath laser probe detecting system is particularly suitable for a large industrial process containing multiple production lines, has the on-line monitoring capability for multiple elements of a product on the production lines and facilitates popularization and generalization of a laser probe technology, and the application cost of the laser probe instrument can be substantially reduced.

A large power microwave plasma torch includes a tuned coaxial resonator, a rectangular waveguide with a wavequide / coaxial converting device to be structure blocked up and down by a door-knob block a door-knob structure locked up and down by a door-knob block and a medium line and con closely with top bottom surfaces of the rectangular wavequide, the said resonator is composed of an top and bottom cavities coaxial with the converter and placed at either side of the waveguide and the converter, one end of the inner conductor is plug in the low cavity, the other end passes through the medium single line, door-knob block and the up cavity, a resonator sort circuit piston is set along the axial line between inner and outer conductors, one end of the waveguide is set with a micro wave source and a waveguid a microwave source and a waveguide shout circuit piston at the other.

The invention discloses an LED (light emitted diode) line scanning optical system applied to a confocal microscopy. The LED line scanning optical system comprises a high-luminance LED light source module which is provided with an LED luminous chip, wherein a dodging coupling module is arranged right ahead of the LED luminous chip, a focusing lens is arranged in front of the dodging coupling module, a first slit is formed in front of the focusing lens, and a dichroscope, an imaging system, a second slit and an object plane are successively arranged behind the first slit. By adopting the technical scheme disclosed by the invention, the ideal line light source excitation is realized, the LED line scanning optical system is completely equal to a plurality of laser light sources large in size and high in price in the function aspect, and more importantly, the line light source excitation which can not be realized by the laser light sources is obtained; the complexity and the debugging difficulty of the system are greatly reduced.

The invention discloses a dewatered sludge curing agent and a preparing method and using method thereof and belongs to the technical field of environment engineering. The mass ratio of phosphate ore, carbide slag, tailing slag and marble slag in the dewatered sludge curing agent is (1-3) : (1-3) : (1-3) : (1-3). The preparing method comprises the steps of washing, drying, breaking and ball-milling phosphate ore, carbide slag, tailing slag and marble slag and then mixing phosphate ore, carbide slag, tailing slag and marble slag evenly in proportion. According to the using method of the dewatered sludge curing agent, dewatered sludge and the added dewatered sludge curing agent are evenly stirred in proportion to achieve curing. The compressive strength of cured dewatered sludge can reach 78 KPa after cured dewatered sludge is cured under a membrane for three days at normal temperature and normal pressure, and pH of leachate is 5-10. According to the dewatered sludge curing agent, solid waste is taken as the raw material, the sources of the raw material are wide, the cost of the raw material is low, and curing stability of dewatered sludge is realized by means of the chemical property of solid waste and mutual active excitation.

The invention aims at providing a system and a method for tracking interface waves which are echoes generated between water and workpieces and also called as water layer waves. The system comprises an FPGA module, an ultrasonic transmission module, an ultrasonic reception module, an AD sampling module, a gate position control assembly and a gate width control assembly, wherein the ultrasonic transmission module is used for generating high voltage and transmitting a high-voltage signal to a transducer; the ultrasonic reception module is used for receiving an ultrasonic signal converted electric signal in the transducer; the AD sampling module is used for sampling the received electric signal into a digital signal and sending the digital signal to the FPGA module; the gate position control assembly is used for determining the effective starting position of the sampling; the gate width control assembly is used for determining the range of the effective starting position of the sampling. The system and the method for tracking interface waves are specifically capable of realizing the following functions: (1) exciting an ultrasonic probe and sampling the echoes; (2) tracking the interface waves; (3) simplifying the original ultrasonic data and retaining the data effective to the workpiece detection.

The invention relates to a laser ultrasonic excitation and detection system as well as a detection method using the same, and belongs to the technical field of non-destructive inspection. The system comprises a continuous laser device, laser splitting devices, an photoelectric modulation structure, an optical interference light path system, a light beam modulation optical path, a light deflector, a signal processing circuit, a computer and a to-be-detected piece. According to the detection method, laser array excitation and laser array detection can be realized by combining different numbers of beam splitters in the laser splitting device group at different intervals. The system and the detection method have the advantages that one continuous laser device is adopted for realizing both laser ultrasonic excitation and detection, so that the cost of a laser ultrasonic detection system can be remarkably reduced; the signal-to-noise ratio of an ultrasonic signal is remarkably improved through array excitation and detection, and the detection efficiency is improved.

The invention discloses a tantalate-based up-conversion luminescence material and a preparation method thereof. The chemical composition of the material is Y10-x-yErxYbyTa4O25, wherein x is the molar percentage of doped erbium ions Er<3+>, y is the molar percentage of doped ytterbium ions Yb<3+>, and the sum of x and y is not smaller than 0.001 and smaller than 10. The material has a green luminescence peak nearby 550nm under the excitation of 970nm infrared laser and has stable performances and high up-conversion efficiency, the luminous intensity of the material enhances with the increase of excitation diode energy, the matrix structure is stable, the concentration of doped rare earth is high, and the high concentration is in favor of enhancing the luminescence efficiency and realizing excitation under high power. The material is prepared through mixing compounds containing elements required by the synthesis of the luminescence material in proportion, and by adopting a high temperature calcining, chemical solution or coprecipitation technology. The method has the advantages of flexibility, abundant sources of raw materials, low price, simple preparation process, and low production cost.

The invention discloses an electrically-driven optical antenna light source and a manufacturing method thereof. The light source comprises an SOI substrate, metal electrodes, silicon waveguides and ananoscale optical antenna; the metal electrodes and the silicon waveguides are arranged on the surface of the SOI substrate; the metal electrodes are connected with the high-voltage end and the low-voltage end of an external connection circuit; the silicon waveguides are connected with the metal electrodes; a groove is formed between the silicon waveguides; and the optical antenna is located in the groove and is in contact with the two silicon waveguides; and the optical antenna comprises metal nanoparticles and an insulating dielectric layer uniformly covering the outer surface of the metal nanoparticles. The electrically-driven optical antenna light source of the invention has the advantages of high response speed, high coupling efficiency and high integration level.

The invention discloses a gun with a firing pin ignition function, and a using method thereof. The gun comprises a safety box hidden in a book; a clamping connecting cavity with a downward opening isfixedly formed in the safety box; connecting side cavities are formed in the left and right end walls of the clamping connecting cavity in a communicating mode; a bullet loading cavity is formed in the upper end wall of the clamping connecting cavity in a communicating mode; a pipe cavity communicating with the outside space is formed in the right end wall of the bullet loading cavity in a communicating mode; a bullet throwing cavity with an upward opening is formed in the upper end wall of the pipe cavity in a communicating mode; a bullet pushing cavity is formed in the left end wall of the bullet throwing cavity in a communicating mode; and a gas guiding pipe communicating with the pipe cavity is formed in the right end wall of the bullet throwing cavity in a communicating mode. The gunis simple in structure and convenient to use, and adopts the working mode of being hidden in the book, ammunition excitation is achieved in a linkage mode while a ratchet structure is utilized to control ammunition filling, and high-pressure gas is utilized to control throwing of bullet cases, so that the reliability of the gun is improved.

The invention relates to the technical field of electronic equipment, in particular to a charging circuit, a circuit control method and electronic equipment, the charging circuit has a charging mode and an excitation mode, the charging circuit is used for charging a battery in the charging mode, and the charging circuit is used for exciting a flash lamp in the excitation mode. The charging circuit comprises a first coil, a second coil, a boosting unit, a switching unit, a rectifier bridge unit and a detection control unit, the second coil is connected with the flash lamp and can be coupled with the first coil; the boosting unit is connected with the first coil; the switching unit is respectively connected with the first coil, the second coil and the boosting unit; the rectifier bridge unit is respectively connected with the switching unit and the battery, and the detection control unit is respectively connected with the flash lamp, the switching unit and the rectifier bridge unit. The number of devices in the electronic equipment can be reduced, and lightening and thinning of the electronic equipment are facilitated.

The invention discloses a preparation method of iron-doped barium titanate nanoparticles. The method comprises the following steps: taking barium hydroxide octahydrate and titanium bis(ammonium lactato)dihydroxide as a barium source and a titanium source; providing doped iron ions by utilizing soluble iron salt; firstly, dissolving the soluble iron salt into de-ionized water to form a mixed precursor solution; then regulating the pH (Potential of Hydrogen) value of the precursor solution by utilizing a 5 M sodium hydroxide solution; taking a proper amount of oleic acid and tert-butylamine as asurfactant and an additive; carrying out hydrothermal synthesis under the condition of 180 to 220 DEG C to obtain BiTi1-XFeXO3 (x is equal to 0.01 to 0.15) cubic-phase nanoparticles. The method provided by the invention has relatively low energy consumption and is simple and convenient to operate; the BiTi1-XFeXO3 (x is equal to 0.01 to 0.15) nanoparticles prepared by the method are tested and characterized as a cubic phase with high purity and good crystallinity. Compared with non-doped barium titanate, the iron-doped barium titanate nanoparticles have a relatively low optical band gap (2.6eV), a regular cubic shape and a relatively small crystal grain size (20 to 40 nm), so that the iron-doped barium titanate nanoparticles have relatively good photocatalytic activity and have a wide application prospect in the fields of scientific researches and electronic industries.

The invention relates to a method for exciting polaritons of a two-dimensional Van der Waals material. The method comprises the steps of irradiating the two-dimensional Van der Waals material by usinghigh-energy electrons, and achieving the excitation of the polaritons of the two-dimensional Van der Waals material. The method provides ultrahigh momentum compensation and ultrahigh spatial resolution by utilizing the advantage of short wavelength of high-energy electrons, so that surface electromagnetic waves, namely, polaritons, are induced to be generated on the two-dimensional Van der Waalsmaterial by virtue of an electromagnetic field radiated by electrons. According to the method, the polaritons of the multi-layer two-dimensional Van der Waals material can be effectively excited, andthe single-layer two-dimensional Van der Waals material can also be effectively excited, so that a basis can be provided for research of polaritons of the two-dimensional Van der Waals material, exploration of polaritons and quantum confinement effects in a new material is facilitated, and a theoretical basis can also be provided for application of the two-dimensional Van der Waals material to small photonics devices.

The invention discloses an epitaxy method for growing a blue light emitting diode on an m-plane gallium nitride substrate. The invention relates to the technical field of semiconductor epitaxial layergrowth. The method comprises the following steps of: growing a non-doped gallium nitride homogeneous epitaxial film infiltration layer at the top of an m-plane GaN substrate by using a metal organicchemical vapor deposition method; sequentially generating an N-type conductive GaN epitaxial layer, a GaN stress regulation and control layer, a GaN / InGaN superlattice electron storage layer, an InGaN / GaN multi-quantum well light-emitting epitaxial layer and a composite P-type GaN layer from bottom to top by using a metal organic chemical vapor deposition method; according to the invention, m-plane homoepitaxy is realized to obtain a flat surface, and effective incorporation of In in the InGaN layer is realized to realize blue light quantum well excitation.

A laser-induced breakdown spectral concentration extraction method for online monitoring of trace gas impurities comprises the following steps: 1) collecting spectral data to form a spectral data set; 2) carrying out data preprocessing to obtain a characteristic spectral line wavelength and a peak intensity value of a target element; 3) establishing a target element characteristic spectral line special database; 4) carrying out matching calculation on the element characteristic spectral line wavelength and a database, and confirming element attribution information of the characteristic spectral line; 5) establishing an element calibration model; and 6) applying the characteristic peak intensity value as an input set to the element calibration model to realize rapid calibration and real-time output of the concentration of the target element, which is different from a multivariable statistical regression technical means, and jointly applying two advantageous technologies of segmented average smooth spectrum noise filtering and derivation peak searching. The spectral background can be fully corrected while the original spectral characteristic variable information is reserved to the maximum extent, and the wavelength and the net peak high-intensity value of the element characteristic peak can be quickly calculated and obtained.

A dewatered sludge solidifying agent, a preparation method and a use method, belonging to the technical field of environmental engineering, the phosphate rock, carbide slag, tailings slag and marble slag in the dewatered sludge solidifying agent are (1-3) by mass percentage: (1 ~3):(1~3):(1~3), the preparation method comprises: washing, drying, crushing and ball milling the phosphate rock, calcium carbide slag, tailings slag and marble slag respectively, and mixing them in proportion uniform. The method of using the dewatered sludge solidifying agent includes: mixing the dewatered sludge and the added dewatered sludge solidifying agent in proportion to achieve solidification. The compressive strength of the cured dewatered sludge can reach 78KPa after 3 days of curing under normal temperature and pressure, and the pH of the leachate is between 5 and 10. The dewatered sludge solidifying agent of the present invention uses solid waste as a raw material, has wide sources of raw materials and low cost, and utilizes the chemical properties of the solid waste itself and the activity excitation between them to realize the solidification and stabilization of the dewatered sludge.

The invention discloses an optical frequency comb generation device, which comprises a tunable laser, a micro-nano optical fiber and a peanut-shaped resonant cavity, laser emitted by the tunable laser is coupled into the peanut-shaped resonant cavity through the micro-nano optical fiber and forms an optical frequency comb, and the peanut-shaped resonant cavity is prepared by melting and compressing a single-mode optical fiber twice. The outline of the peanut-shaped resonant cavity is in axial symmetry, the peanut-shaped resonant cavity comprises a first bottle-shaped optical microcavity and a second bottle-shaped optical microcavity which are coaxially arranged in the axial direction of the peanut-shaped resonant cavity, and the first bottle-shaped optical microcavity and the second bottle-shaped optical microcavity are partially overlapped in the axial direction. The invention also provides a light source frequency stabilization system and a method of the atomic magnetometer. The comb tooth interval of the optical frequency comb obtained by the optical frequency comb generation device is as low as 0.1-1GHz, dispersion is easy to adjust, and the light source frequency stabilization system and method of the atomic magnetometer based on the optical frequency comb generation device realize high-precision and high-frequency-stability light source output of the atomic magnetometer.

The invention aims at providing a system and a method for tracking interface waves which are echoes generated between water and workpieces and also called as water layer waves. The system comprises an FPGA module, an ultrasonic transmission module, an ultrasonic reception module, an AD sampling module, a gate position control assembly and a gate width control assembly, wherein the ultrasonic transmission module is used for generating high voltage and transmitting a high-voltage signal to a transducer; the ultrasonic reception module is used for receiving an ultrasonic signal converted electric signal in the transducer; the AD sampling module is used for sampling the received electric signal into a digital signal and sending the digital signal to the FPGA module; the gate position control assembly is used for determining the effective starting position of the sampling; the gate width control assembly is used for determining the range of the effective starting position of the sampling. The system and the method for tracking interface waves are specifically capable of realizing the following functions: (1) exciting an ultrasonic probe and sampling the echoes; (2) tracking the interface waves; (3) simplifying the original ultrasonic data and retaining the data effective to the workpiece detection.

The invention discloses an efficient multipath laser probe detecting system and method. The detecting system can divide laser sources into multiple paths and transmit the laser sources to multiple to-be-detected points through optical fibers, corresponding spectral signals are transmitted back to the detecting system after laser plasma is generated through excitation, finally, multi-point and simultaneous on-line detection by one laser probe instrument is finally realized, the optical fibers are used for transmitting laser and the spectral signals, accordingly, the anti-jamming capability of a laser probe in the severe environment can be improved, and the application cost of the laser probe instrument can be substantially reduced. The efficient multipath laser probe detecting system is particularly suitable for a large industrial process containing multiple production lines, has the on-line monitoring capability for multiple elements of a product on the production lines and facilitates popularization and generalization of a laser probe technology, and the application cost of the laser probe instrument can be substantially reduced.

The invention discloses a motor voltage injection method, electronic equipment and a storage medium. The motor voltage injection method comprises the following steps: acquiring an initial voltage set value and a magnetic pole position angle of a target motor; injecting a first voltage to a motor winding of the target motor based on the magnetic pole position angle and the initial voltage set value; collecting a historical feedback current and a current feedback current; determining a predicted feedback current according to the feedback current at the current moment and the historical feedback current; determining whether an overcurrent risk exists based on the predicted feedback current; if yes, reducing the initial voltage set value to obtain an adjusted voltage set value; and based on the magnetic pole position angle and the adjusted voltage set value, injecting a second voltage into the motor winding until it is determined that no overcurrent risk exists, and obtaining a target voltage set value for saturation model identification. The technical problem that the overcurrent risk is high in the inductance identification process in the prior art is solved.

Embodiments of the present invention provide a cell optimization method, device, storage medium, and source base station. In the solution of the embodiment of the present invention, the operation data of the source cell is obtained; according to the operation data, the high load level of the source cell is generated; according to the high load level, the source cell is optimized, and the data only needs to be obtained by obtaining the utilization rate of physical resource blocks. Preparation, data preparation is relatively simple and highly feasible; targeted optimization of source cells according to the high load level can effectively improve the response speed and resource utilization rate of high-load scenarios, realize traffic stimulation, and greatly improve the optimization efficiency.

The invention discloses a tantalate-based up-conversion luminescence material and a preparation method thereof. The chemical composition of the material is Y10-x-yErxYbyTa4O25, wherein x is the molar percentage of doped erbium ions Er<3+>, y is the molar percentage of doped ytterbium ions Yb<3+>, and the sum of x and y is not smaller than 0.001 and smaller than 10. The material has a green luminescence peak nearby 550nm under the excitation of 970nm infrared laser and has stable performances and high up-conversion efficiency, the luminous intensity of the material enhances with the increase of excitation diode energy, the matrix structure is stable, the concentration of doped rare earth is high, and the high concentration is in favor of enhancing the luminescence efficiency and realizing excitation under high power. The material is prepared through mixing compounds containing elements required by the synthesis of the luminescence material in proportion, and by adopting a high temperature calcining, chemical solution or coprecipitation technology. The method has the advantages of flexibility, abundant sources of raw materials, low price, simple preparation process, and low production cost.

The invention discloses a novel binuclear ion-type phosphorescence iridium complex, a preparation method thereof, and an application of the complex in bio-imaging. The chemical structure of the complex can be represented by a formula I: [Ir(C^N)2(tpphz)Ir(C^N)2]+Y-2, wherein tpphz represents tetrapyridinophenazine, C^N ligand is phenylpyridine (ppy), 2,4-difluorophenylpyridine (dfppy), thiophene quinoline (tpq) and 2-(4-dimesitylborylphenyl)quinoline (bpq), and the counter ion Y is PF6<-> and Cl<->. The iridium complex has the advantages of long phosphorescence lifetime , large Stokes shift, good optical stability, low toxicity, and good biocompatibility, and is an excellent probe for cell imaging.

The invention discloses a plasmon enhanced deep ultraviolet detector, its preparation method and application. The plasmon-enhanced deep ultraviolet detector includes a heterojunction, a spline electrode and a periodic metal particle array, the spline electrode is formed on the heterojunction, and the periodic metal particle array forms between the pinion electrodes. The invention utilizes the localized plasmons generated by the metal particles and the plasmon periodic diffraction resonance mode generated by the metal particle array to couple the incident light in the two ultraviolet bands to the metal nanostructure to realize the detector surface The light field of the two ultraviolet bands is enhanced, the absorption rate of the detector material to the incident light is improved, and the photoresponsivity of the deep ultraviolet detector to the two wavelengths is improved; and the plasmon resonance can be realized by adjusting the period and size of the metal particles Coupling with GaN / AlGaN detector detection wavelength.

The invention discloses an epitaxial method for growing a blue light-emitting diode on an m-plane gallium nitride substrate, and relates to the technical field of semiconductor epitaxial layer growth, including growing a non-doped layer on the top of an m-plane GaN substrate by using a metal organic chemical vapor deposition method. GaN homoepitaxial film wetting layer, and then use metal organic chemical vapor deposition method to sequentially generate N-type conductive GaN epitaxial layer, GaN stress regulation layer, GaN / InGaN superlattice electron storage layer, InGaN / GaN multi-quantum well light-emitting epitaxial layer and composite P-type GaN layer; the invention realizes m-plane homoepitaxy to obtain a smooth surface, and realizes effective incorporation of In in the InGaN layer to realize blue light quantum well excitation.

The invention discloses a curing agent for heavy metal pollution soil, and preparation and application methods thereof. The curing agent is prepared from the following materials in percentage by mass: 30 to 55 percent of steel slag powder, 20 to 50 percent of quicklime powder and 5 to 30 percent phosphate-loaded charcoal. The curing agent has the advantages that firstly, the curing agent can obviously reduce the heavy metal mobility and the toxicity leaching quantity in the heavy metal polluted soil, and is particularly applicable to acid pollution sites with the high heavy metal content and various contaminant types; after the polluted soil restoration, the curing agent can be used as environment-friendly materials to realize the resource utilization; the environment risk of the pollution sites in the secondary development and utilization can be obviously reduced; meanwhile, the raw materials of the curing agent can be easily obtained; the cost is low; the preparation is simple; the use is convenient; the effect is stable; the curing agent can be popularized in a large range and can be applied to the curing stabilization restoration of the composite pollution sites.

The invention discloses a full-automatic foundation pile integrity testing force hammer which comprises a mounting plate and is characterized in that the mounting plate is fixedly connected with a first round rod, the first round rod is fixedly connected with a speed reducer, the mounting plate is fixedly connected with a vertical rod, the vertical rod is fixedly connected with a second round rod, and the second round rod is fixedly connected with an air cylinder; the air cylinder is provided with a working air cylinder, a compression air cylinder, an upper air channel and a lower air channel, the working air cylinder is communicated with the upper air channel and the lower air channel, the compression air cylinder is communicated with the upper air channel and the lower air channel, an upper spin valve is installed in the upper air channel, and a lower spin valve is installed in the lower air channel. The invention relates to the field of engineering equipment, in particular to a full-automatic foundation pile integrity testing force hammer. The technical problem to be solved by the invention is to provide the full-automatic foundation pile integrity test force hammer which is convenient for foundation pile integrity test.

The invention discloses a fluorescent molecular imaging system based on an LED light source and an imaging method thereof. The fluorescent molecular imaging system based on the LED light source comprises a light source device, an animal bed, an imaging device and a computer image processing system, wherein the light source device comprises the light source, a light source frame, a switch set, an exciting light filter set and lenses. LEDs are adopted in the light source, the light source comprises multiple sets of LED arrays of different light-emitting wave lengths, and each set of the LED array is connected to the switch set. According to the fluorescent molecular imaging system based on the LED light source and the imaging method thereof, the multiple sets of the LED arrays of different light-emitting lengths are adopted in the light source, the manufacturing technology is simple, price is low, and the LED arrays of different wave lengths can be switched easily according to needs to achieve the excitation of different fluorescent substances. It is firstly proposed that the LEDs serve as the exciting light source of the transmission-type fluorescent molecular imaging system and the exciting light source of a fluorescent molecular tomography system, the imaging system is simple in structure, optical fibers are not needed for transmitting exciting light, and therefore fluorescent molecular tomography can be carried out more efficiently.

The invention discloses a pistol with a firing pin for ignition. The pistol comprises a mounting box hidden in a book; a clamping connecting cavity, opened down, is fixedly formed in the mounting box;connecting side cavities communicate into the left and right end walls of the clamping connecting cavity; a bullet charging cavity communicates into the upper end wall of the clamping connecting cavity; a tube cavity, communicating with external space, communicates into the right end wall of the bullet charging cavity; a bullet shooting cavity, opened up, communicates into the upper end wall of the tube cavity; a bullet pushing cavity communicates into the left end wall of the bullet shooting cavity; and an air guide tube, communicating with the tube cavity, communicates into the right end wall of the bullet shooting cavity. The pistol is simple in structure and convenient to use, adopts a working mode of hiding in the book to realize control of the ammunition charging by a ratchet structure, meanwhile, adopts a linkage mode to realize shooting of ammunitions, and uses high-pressure gas to control shooting of bullet cases so as to improve the equipment reliability.