89 results about "Wave response" patented technology

The invention discloses a pile foundation quality detection method and device. The method comprises: connecting an output signal of an about-10cm interval geophone string formed by micro-speed or acceleration sensors with a multichannel synchronization elastic wave acquirer (3) by a signal cable (2); removing laitance on a pile head of a pile foundation (4), cleaning the pile head, and forming a detection hole (5) axially parallel to the pile foundation at the center of the pile head by a drilling machine, wherein the hole diameter is about 50cm and the hole depth is about 1m; placing the geophone string along the detection hole, and enabling geophones to be tightly attached on the wall of the detection hole by a machine or an inflation air bag (6); exciting elastic waves in modes of hammering (7) on the pile head and the like, recording elastic wave response signals by the multichannel synchronization elastic wave acquirer (3) through the signal cable, and repeatedly hammering to form signal superposition; and performing travelling wave separation on upward travelling waves and downward travelling waves in multichannel elastic wave response signals, pressing or filtering the downward travelling waves, reserving the upward travelling waves for reflecting defect reflected signals of the lower part of the pile foundation, and performing excursion superposition according to the correlation of the defect reflected upward travelling signals to form reflected signals excited and received on the pile top surface, thus obtaining positions and properties of defects at the lower part of the pile foundation. In the detection method, reliability of interpreting and extracting defect reflected signals in pile foundation detection is improved by comprehensive technologies of multiple excitation signal superposition, multi-sensor signal travelling wave separation, correlated reflected signal excursion superposition and the like, thus improving reliability of detection results.

The embodiment of the invention discloses a texturing method for a solar cell. The method comprises the following steps of: texturing the front surface of the solar cell; and polishing the back surface of the solar cell. By the provided texturing method, a low-reflectivity textured surface structure is formed on the front surface of the solar cell, and a high-reflectivity polished surface structure is formed on the back surface of the solar cell; and by the high-reflectivity polished surface structure, the long wave response is increased, and a recombination rate of a back metal electrode and a silicon wafer is reduced; and the open-circuit voltage, the short-circuit current and filling factors are improved, so the utilization efficiency of the solar cell can be improved. Furthermore, the texturing method is lower in cost, and is simple, so the texturing method can be widely applied to commercial production.

The invention discloses a selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures to meet the earthquake-resistant requirements of the complex structures such as a high-pier long-span girder bridge, a cable-stayed bridge, a suspension bridge and a super high-rise building. The method comprises the steps that firstly, alternative earthquake waves which meet different site conditions such as earthquake magnitude, distance, an acceleration peak value and long cycle characteristics are selected in an American PEER strong earthquake record database, and a primary-selection database is formed; secondly, the minimum relative weighted average error of spectrum values of alternative earthquake wave response spectrums and design response spectrums in the primary-selection database near previous orders of periodic points of platforms stages and the complex structures is used as a double-control index according to site conditions, and the specific input earthquake waves are determined to meet the requirement that a time-procedure analysis result is in accordance with response spectrum analysis analytic statistics. According to the selection method, engineering realization is easy to achieve, and the method is compared with multiple mode decomposition reaction spectrum methods. In addition, due to the fact that the earthquake waves are selected in the appointed primary-selection database, similar classification of the site conditions is ensured, and the quality of input earthquake waves is ensured.

The invention belongs to the technical field of electrooptics, in particular to a method for measuring pumping electrooptics of Terahertz impulse energy. The method is characterized by comprising the following steps: firstly, acquiring Terahertz absolute electric field strength; then, collecting Terahertz light spot, and obtaining energy of Terahertz impulse through integral of the Terahertz light spot on certain area and impulse duration. The method solves the problem of energy measurement of Terahertz impulse to overcome the defect that the existing method can not directly measure the energy because of shortage of a direct Terahertz wave response element, provides an effectively technical proposal for Terahertz energy meter designing, and provides a reference calibrating method for high-power Terahertz radiation source study.

The invention provides a semi-submersible lifting living platform, which comprises an upper ship body and a lower ship body. A deck is arranged at the top of the upper ship body. The lower ship body comprises a first buoy and a second buoy with the volume being smaller than the volume of the first buoy. The first buoy is connected with the bottom of the upper ship body through two first stand columns. The second buoy is connected with the bottom of the upper ship body through two second stand columns. One of the first buoy and the second buoy is arranged on the larboard side of the semi-submersible lifting living platform, and the other is arranged on the starboard side of the semi-submersible lifting living platform. The platform additionally comprises at least one marine crane, which is arranged on the deck and is arranged on the same side of the semi-submersible lifting living platform as the first buoy. Since the semi-submersible lifting living platform provided by the invention adopts an asymmetrical lower ship body design and the large-scale marine crane is arranged on the same side, the platform is enabled to have a good wave response capability and the impact of the buoys to the lifting operation can be avoided.

The invention discloses a method for passivating the back of a crystal silicon solar cell. The method comprises the following steps of: depositing a SiN* anti-reflection film on the front of the solar cell, corroding the back of the solar cell in heated alkali liquor by using the SiN* anti-reflection film as a mask to obtain a polished surface required by passivation, then depositing double film passivation layers on the polished surface to form a back passivation layer, forming an electrode window on the back passivation layer by adopting laser etching or screen printing of corrosive slurry, and finally forming a local contact back electrode on the electrode window by adopting a screen printing or sputtering method. The method greatly improves the long wave response of the solar cell and improves the conversion efficiency of the solar cell; moreover, a full-aluminum back field structure is canceled, so the method reduces the bending of the solar cell and is more adaptive to the thinning tendency of the solar cell.

The invention provides a perovskite solar battery made of silicon-based thin-film materials and a manufacturing method of the perovskite solar battery. The perovskite solar battery made of the silicon-based thin-film materials structurally comprises conductive glass, an n-type electron transfer layer arranged on the conductive glass, a perovskite photosensitive layer arranged on the n-type electron transfer layer, a p-type hole transfer layer arranged on the perovskite photosensitive layer and a metal counter electrode arranged on the p-type hole transfer layer. The perovskite solar battery and the manufacturing method have the advantages that the p-type silicon-based thin-film materials low in cost and easy to combine are adopted as the hole transfer layer, expensive spiro-OMeTAD organic materials are replaced, and the long wave response and battery efficiency of the silicon solar battery are improved.

The invention provides a dense sandstone physical model and a manufacture method thereof. The method comprises: particle rock flour, epoxy resin in low viscosity and a curing agent are evenly mixed according to a certain ratio and placed into a mold to conduct pressing processing, pressure is over 2MPa, the pressure is maintained so that an even mixture is solidified to a block, and the mixture is taken out and baked to be completely solidified so that a dense sandstone physical model is obtained. According to earthquake physical model technology characteristics and based on relation between practical stratum features and the laboratory model manufacture, the problems may occur in the process of sandstone model design and manufacture are solved so that the technology can be well used for developing sandstone reservoir stratum earthquake wave response simulation research.

The present invention is to provide inspection apparatus and method of being able to acquire electromagnetic wave response information of an inspection object at high speed as average information using an electromagnetic wave. An inspection apparatus using an electromagnetic wave 2 includes an electromagnetic wave generation and irradiation unit 9 which generates an electromagnetic wave and irradiates the electromagnetic wave on an inspection object 11, and an electromagnetic wave detection unit 10 having a plurality of detection units. The plurality of detection units is arranged so as to detect the electromagnetic wave which is irradiated by the electromagnetic wave generation and irradiation unit and is transmitted or reflected with interacting with different sites of the inspection object 11, and is constructed so as to detect the electromagnetic wave from the different sites in different detection time or detection frequencies respectively. The inspection apparatus acquires electromagnetic wave response information on the inspection object 11 based on detection signals from the plurality of detection units.

The invention discloses a graphene room temperature terahertz wave detector, and the detector comprises a sapphire substrate, log-periodic antennas formed on the sapphire substrate through evaporation, and lead electrodes. Moreover, two sides of the terahertz wave coupling log-periodic antennas are respectively connected with the corresponding lead electrode. A graphene conductive trench with adjustable carrier concentration and high migration rate is disposed in a gap of the log-periodic antennas in a transfer manner, thereby guaranteeing the interconnection between graphene and the log-periodic antenna at two sides. The detector is advantageous in that the detector is high in terahertz wave response, can achieve the detection of broadband, high speed, high sensitivity and high signal to noise ratio terahertz waves; the detector is good in integration and miniaturization, and lays a foundation for the large-scale application.

The invention discloses an aluminized BSF secondary sintering technology for a crystal silicon solar cell. The technology utilizes a laser beam or a microwave beam in a pulse mode to scan or integrally scan an aluminized BSF region at the back of the cell so that aluminum in a scanning region is instantaneously heated and melted and diffuses to a silica body; and a whole or partial aluminum heavily-doped region is formed at the back of the solar cell so as to form a BSF with excellent performance, thereby accelerating the diffusion of minority carriers, improving the collection ratio of the minority carriers, improving the long-wave response of the cell and further improving the whole efficiency of the cell. The technology can control the thermal influence of secondary sintering on the periphery of an aluminum layer so as not to generate obvious adverse influence on other parts of the cell, has various flexible laser sintering design modes, is simple, convenient and rapid to manufacture and can be rapidly combined with the prior industrial production.

The present invention discloses a carbonate reservoir seismic wave response characteristic analysis method, belonging to the oil-gas exploration engineering field. The method comprises: the stratum where the carbonate reservoir is located and the overlying strata are subjected to macroscopic layer division on a logging curve, the synthetic seismic record of the carbonate reservoir is obtained to perform the reservoir position calibration; the primary rock acoustic velocity and the density are employed to replace the acoustic velocity and the density of the carbonate reservoir in the macroscopic layer data, the synthetic seismic record without the carbonate reservoir is obtained, and the reservoir reflection distortion index is obtained. The carbonate reservoir seismic wave response characteristic analysis method is provided to realize the matching of the logging resolution and the seismic resolution so as to improve the carbonate reservoir seismic calibration accuracy; and moreover, through calculation of the reservoir reflection distortion index, the contribution effect of the upper and lower surrounding rocks and the reservoir on the well-side recording channel so as to realize the fine analysis for the carbonate reservoir seismic reflection wave response characteristics.

The invention discloses a preparation method of a crystal silicon solar cell, comprising necessary processes for preparing the crystal silicon solar cell and the following steps of forming a single passivation layer on the back surface of the cell; printing corrosive pulps on the single passivation layer on the back surface by utilizing ink-jet printing, then drying the corrosive passivation layer and cleaning and removing the pulps so as to form a window with local contact; and then forming back surface contact on the window by utilizing screen printing. Proved by tests, the solar cell structure with back surface passivation and local contact can efficiently enhance long wave response and back surface reflection of the solar cell so as to enhance the conversion efficiency of the solar cell.

The invention relates to 3D printing equipment for metamaterial preparation. The 3D printing equipment comprises a substrate deposition system, a loop deposition system and a pivot control system, wherein the pivot control system controls the substrate deposition system and the loop deposition system; the substrate deposition system is controlled by the pivot control system to construct a substrate of a metamaterial periodical structure; the substrate provides an adhesion site to an electric conducting loop structure; and the loop deposition system is controlled by the pivot control system todeposit electric conducting substances on the substrate, constructed by the substrate deposition system, through an ink jet gun head to form an electromagnetic wave response structure. The 3D printingequipment uses the substrate deposition system and the loop deposition structure for realizing synchronous printing of a substrate material and an electric conducting material to construct a metamaterial with a periodical structure or a similarly periodical structure.

The invention relates to a wave power generation device, discloses a wave power generation device having a funnel-shaped moon pool structure and aims to solve problems of poor energy collection effect, low wave energy utilization rate, high construction cost and poor stability of wave power generation devices in the prior art. The wave power generation device comprises a moon pool device, a floating body device and a power generation device body, wherein the moon pool structure comprises an upper moon pool cover, a first sleeve and a second sleeve which are sequentially arranged from top to bottom; the diameter of the first sleeve is larger than that of the second sleeve; the first sleeve and the second sleeve are connected by the aid of a circular ring; the power generation device body is arranged at the upper end of the upper moon pool cover; the lower end of the floating body device is arranged in an area enclosed by the upper moon pool cover, the first sleeve and the second sleeve; and the upper end of the floating body device is connected with the power generation device body. The power generation device can effectively solve the problems of low absorption and capture efficiency, low wave response speeds, huge wave power generation device capture structures and the like of existing wave power generation devices.

A digital signal receiver capable of obtaining a favorable receiving performance even if the input signal level changes rapidly is presented. A control voltage for controlling a variable gain amplifier is read by a microprocessor, and an operation-starting point of the variable gain amplifier is shifted by using this control voltage. As a result, a favorable level fluctuation response characteristic is obtained regardless of the input level.

The invention provides a local random point contact solar cell with a back electrode and a preparing method of the local random point contact solar cell with the back electrode. The local random point contact solar cell with the back electrode comprises a substrate, an n-type emitting electrode manufactured on the substrate, a front surface passivation layer manufactured on the n-type emitting electrode, a passivation film, a plurality of front grid line electrodes and the whole back electrode. The front surface passivation layer is divided into a plurality of sections and an electrode window is arranged between every two adjacent sections; the passivation film is manufactured on the lower side of the substrate and a plurality of small holes are formed in the passivation film; the front grid line electrodes are manufactured on the electrode windows on the front surface passivation layer and are in contact with the n-type emitting electrode; the whole back electrode is manufactured on the passivation film and is in contact with the substrate through the small holes in the passivation film. The local random point contact solar cell with the back electrode can solve the problem that surface passivation of the silicon solar cell contradicts electrode contact and improves the long wave response and the cell efficiency of the silicon solar cell.

An inter-node phase relation identification method of an electric system based on a wide area measurement noise signal belongs to the technical field of stability analysis of the electric system. The method is characterized by comprising the steps of injecting random small-amplitude disturbing signals at the load position of an artificial electric system, collecting system small-amplitude fluctuation responses of noise-like signals as analysis objects, establishing the autoregressive moving average models of the noise-like signals, calculating the model parameters of the autoregressive parts and the moving average parts of the models, solving for the coefficient of the Green function of an ARMA model similar to system unit pulse response based on the parameters, and identifying the inter-node phase relation according to the relation between a system oscillation modal vector and the coefficient vector of the Green function of the ARMA model. The invention is capable of correctly estimating the dynamic characteristics of the prior system under the condition that the system normally runs, and the signals are easily collected.

The invention discloses a preparation method of an organic-inorganic composite solar cell based on perovskite-nano germanium particles. The method includes preparing a titanium dioxide electron transfer layer on conducting glass; preparing germanium nano-particles through PECVD; adopting a nano germanium particle-ammonium methyl iodide-lead chloride-dimethyl formamide mixed precursor solution; adopting an ultrasonic spray method to prepare a perovskite-nano germanium particle composite active layer on the electron transfer layer; depositing a P type organic conducting layer on the perovskite-nano germanium particle composite active layer; and depositing a metal electrode layer on the P type organic conducting layer. Nano germanium particles embedded in a perovskite lattice network can expand the long wave response range of a perovskite solar battery, and nano germanium particles passivated by the perovskite network can provide a parallel transmission channel for transport of carriers; and the ultrasonic spray method can improve the utilization rate of raw materials, improve large-area uniformity, and the requirements of industrial production are met.

The invention discloses a moon pool vibration water column wave energy power generating device based on floating breakwater, and belongs to the technical field of wave power generating. The moon poolvibration water column wave energy power generating device includes the floating breakwater, an anchoring device, a power generating structure, and moon pool structures, wherein the floating breakwater is connected with the anchoring device, a plurality of cylinder holes penetrating the upper surface and the lower surface are formed in the floating breakwater, the interiors of the cylinder holes are of the moon pool structures, the power generating structure is installed above the cylinder holes, the moon pool structures include a turbine and fixing bearings, the fixing bearings sleeve the twoends of the turbine correspondingly and are fixed to the inner surfaces of the cylinder holes, and the turbine is connected with the power generating structure through a transmission shaft. The moonpool vibration water column wave energy power generating device based on the floating breakwater is provided with the breakwater and power generating, the power generating device and the breakwater form a whole, various sea conditions are greatly fit, stability and reliability of the device are improved, the device withstands waves with the breakwater, circuit integrating is realized, the wave energy converting efficiency is improved greatly, and the problem of low absorption efficiency and slow wave response speed of a wave energy converting deice, and difficulty of the wave energy power generating device to survive independently in the waves are effectively solved.