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727 results about "Wave power" patented technology

Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC).

Measuring device for electrical resistivity of electromagnetic waves while drilling and measuring method thereof

The invention discloses a measuring method for electrical resistivity of electromagnetic waves while drilling, comprising the following steps: generating an electromagnetic wave power signal with specific frequency; emitting the electromagnetic wave power signal into a ground layer through an emitting antenna coil; receiving two electromagnetic wave power signals including measured ground layer information through two receiving antenna coils so as to generate two paths of electromagnetic wave power signals including the measured ground layer information; carrying out band-pass filtering to the two paths of the electromagnetic wave power signals including the measured ground layer information, and carrying out AD sampling to the two paths of the electromagnetic wave power signals including the measured ground information which is subjected to the band-pass filtering so as to generate two paths of electromagnetic sampling digital signals; carrying out frequency mixing transformation and low-pass filtering to the electromagnetic wave sampling digital signals so as to generate amplitude value information and phase information; generating amplitude value ratio and phase difference according to the amplitude value information and the phase information; and generating an electrical resistivity drawing board of the electromagnetic wave power sinals in a chart inversion method according to the amplitude value ratio and the phase difference. An embodiment of the invention also discloses a measuring device for the electrical resistivity of the electromagnetic waves while drilling.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Method for automatically testing parameters of millimeter wave power amplifier and system

The invention discloses a method for automatically testing parameters of a millimeter wave power amplifier and a system. The system comprises the structure that a millimeter wave excitation signal power control unit of a piece to be tested is connected with a millimeter wave excitation signal power generation unit of the piece to be tested; a millimeter wave excitation signal power detection unit of the piece to be tested is connected with the millimeter wave excitation signal power control unit of the piece to be tested; the input end of the piece to be tested is connected with the millimeter wave excitation signal power detection unit of the piece to be tested; the output end of the piece to be tested is connected with the millimeter wave excitation signal power detection unit of the piece to be tested; a direct current signal supply unit of the piece to be tested is connected with the piece to be tested; and a test system control unit is respectively connected with the millimeter wave excitation signal power generation unit of the piece to be tested, the millimeter wave excitation signal power detection unit of the piece to be tested, the direct current signal supply unit of the piece to be tested and an output signal detection unit of the piece to be tested. According to the method and the system disclosed by the invention, the automatic test of multiple millimeter wave power parameters is realized; the difficulty in lacking of test equipment is overcome; and the defects of manual test efficiency, low accuracy, uncertain factors and the like are avoided.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Pendulum wave power generating device

The invention relates to a pendulum wave power generating device which structurally comprises a base, a swinging plate and a transmitting device. The swinging plate is arranged in seawater and connected with the transmitting device through a swinging plate shaft. The transmitting device comprises a first bevel gear, a second bevel gear and a third bevel gear, wherein the first bevel gear is fixed on the swinging plate shaft, the second bevel gear and the third bevel gear are coaxially arranged and are symmetrically arranged on the two sides of the first bevel gear, the second bevel gear and the third bevel gear are meshed with the first bevel gear, the second bevel gear and the third bevel gear are respectively connected with an output shaft through ratchet clutches, and the output shaft is connected with a power generator through a coupler. By means of the transmitting device and the ratchet clutches, the reciprocating motion of the swinging plate is converted into one-way output. Thus, output always faces in the same direction no matter what direction the swinging plate rotates in, and full wave absorption is achieved. The pendulum wave power generating device has the advantages of being stable in energy output, high in transmitting efficiency, simple and compact in structure, small in size, low in cost and the like.
Owner:SHANGHAI OCEAN UNIV

Multi-functional combined ocean power generating platform capable of being congregated and congregating group

ActiveCN104960636ASolve the structural problems caused by the rigid connection method due to the huge spanReduce spacingGeneral water supply conservationWind motor combinationsWind drivenWater desalination
The invention discloses a multi-functional combined ocean power generating platform capable of being congregated and a congregating group. The congregating group comprises a plurality of polygonal power generating platform bodies, each of the power generating platform bodies comprises buoy platforms, vertical axial wind driven generators, solar power generating units, tidal power generating units, wave power generating units and an ocean aquaculture region, wherein a buoy platform is arranged at each of polygonal angle points; a vertical axial wind driven generator and a solar power generating unit are arranged at the top of each of the buoy platforms; a tidal power generating unit is arranged at the bottom of each of the buoy platforms; the wave power generating units are used for connecting the buoy platforms in a flexible manner; the ocean aquaculture region is formed by surrounding a fishing net hooked in the wave power generating units. According to the congregating group disclosed by the invention, various power generation such as wind power generation, solar power generation, tidal power generation and wave power generation, fishery aquaculture and sea water desalination are integrated, structure problems caused by large spans among buoys in rigid coupling can also be solved, mutual interference distances among the vertical axial wind driven generators are short, the gravity center of a generator group on the platform is lower, distances among the buoys are short, wave energy can be collected, and impact from waves to the buoys is retarded.
Owner:JIANGSU UNIV OF SCI & TECH

Wideband multi-channel substrate integrated waveguide power divider adopting novel high-isolation technology

InactiveCN102496763AImprove isolationAchieving Broadband FeaturesCoupling devicesHigh isolationTransmission loss
The invention relates to a wideband multi-channel substrate integrated waveguide power divider adopting a novel high-isolation technology. Input/output ports and a substrate integrated waveguide cavity are connected by using a novel mixed multi-through-hole probe to realize wideband impedance matching. A flow drainage groove and a resistive isolating groove are formed on the substrate integrated waveguide cavity, and an isolating resistor is arranged on the resistive isolating groove to obtain high isolation characteristic of each output port. The output ports are distributed at equal intervals on a circle by taking an input port as the center, and the whole power dividing circuit has axial rotation symmetry, so that the amplitudes of multi-channel power dividing signals are equal, N-channel parallel power division is realized, and signal transmission loss can be reduced to the largest extent. The power dividing circuit can be flexibly designed into an in-phase power divider, an inverse-phase power divider and a differential power divider. The wideband multi-channel substrate integrated waveguide power divider has the advantages of wide band, low insertion loss, high isolation, any multi-channel power dividing output, high input/output standing wave, high amplitude consistency of each channel of power dividing output signal, and the like. The wideband multi-channel substrate integrated waveguide power divider is mainly applicable to a microwave millimeter wave power synthesis amplification system, a phased-array antenna feed network and the like, and has a wide application prospect in microwave millimeter wave systems for communication, radar and measurement.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Rotary joint for radio frequency electromagnetic waves and light waves

One embodiment of an axial rotary joint having rotary transmission lines for the bi-directional propagation of radio frequency electromagnetic waves and light waves across a rotary interface. Each section is capable of fully independent rotation about a common longitudinal axis. The radio frequency rotary transmission line comprises waveguide tubing at each end that transitions to a coax transmission line at the rotary interface. The waveguide tubing also functions as the axial support structure. The second transmission line for light wave propagation is fully integrated into the waveguide-to-coax transition and the inner coaxial conductor, and uses optical coupling devices to form an optical coupling path across the rotary interface. This embodiment of the rotary joint can be sealed and pressurized to minimize contamination of the optics and to increase the electromagnetic wave power handling. The second transmission line in another embodiment is a combined millimeter wave and optical transmission line supporting simultaneous millimeter wave and light wave propagation across the rotary interface. Combining and decombining filters incorporated into the physical rotary transmission lines in other embodiments create a multitude of channels on various frequencies and wavelengths, greatly increasing the usefulness of the device.
Owner:LORENC CURTIS D

Maritime renewable energy transfer device and system

The invention relates to a maritime renewable energy transfer device which comprises an ocean platform and a wave energy generator, wherein the wave energy generator is arranged on the platform surface of the ocean platform, preferably, the wave energy generator comprises a wave floating body and a mechanical driving and generating component; the mechanical driving and generating component is arranged on the platform surface; the wave floating body comprises a floating body and a straight rack gear arranged on the floating body; the mechanical driving and generating component comprises a straight rack gear limiting component, a first rotating shaft and a first gear arranged on the first rotating shaft; the floating body is positioned below the platform surface; the straight rack gear passes through the platform surface from bottom to top and is meshed with the first gear; the straight rack gear limiting component supports a limiting straight rack gear; and the ocean platform is a tension leg type ocean platform. The invention also provides a maritime renewable energy transfer system for using wind power and wave power to generate power in a combined grid. The invention is ingeniously designed, can effectively utilize maritime renewable energy and provide energy for ocean development away from the land, and is safe, stable and reliable and convenient for engineering implementation and daily maintenance.
Owner:SHANGHAI OCEAN UNIV

Floating type marine wind energy and wave energy hybrid power generation platform

The invention aims to provide a floating type marine wind energy and wave energy hybrid power generation platform which comprises a vertical shaft wind driven generator, an oscillating type wave power generating device and a floating body, wherein the vertical shaft wind driven generator and the oscillating type wave power generating device are respectively arranged on the floating body; the oscillating type wave power generating device comprises a floater, an oscillating rod and a wave power generator; the floater is connected with the oscillating rod, and the oscillating rod is connected with the wave power generator through a wave motion reversing device; and the wave power generator is connected with an energy storage device through a power conversion device. According to the floating type marine wind energy and wave energy hybrid power generation platform, the application range of the hybrid power generation platform is expanded, the stability and the safety performance of the power generation platform are improved, the construction cost and the maintenance cost are reduced, and the power generation efficiency is improved by active stall control and phase change control, so that the floating type marine wind energy and wave energy hybrid power generation platform is a reliable offshore power generation platform.
Owner:三亚哈尔滨工程大学南海创新发展基地

Corrosion detection device and method based on sh0 wave power system grounding grid conductor

The invention discloses a device and a method for detecting the corrosion of a conductor of a grounding grid of a power system based on an SH0 (horizontal shear) wave, which belong to the technical field of nondestructive detection. A pulse function generating instrument passes through an impedance matching instrument at an exciting end, and then is connected with an SH0 wave electromagnetic acoustic excitation energy converter, so as to excite the SH0 wave without frequency dispersion and with single modality, good directionality and large energy; an SH0 wave electromagnetic acoustic excitation energy converter 3 and an SH0 wave electromagnetic acoustic receiving energy converter 4 are placed on a central axis in the length direction of the conductor of the grounding grid; an excitation frequency is a maximum frequency of the working energy of a sensor; and the nondestructive detection is carried out on the corrosion of the conductor of the grounding grid by utilizing the SH0 wave generated under a central frequency. By using the device and the method, the defects that the detection of the corrosion of the conductor of the grounding grid is incomplete, the implementation of detecting a metal constructional element by utilizing a Lamb wave is inconvenient, and the Lamb wave has multimodality, frequency dispersion and an obvious boundary effect, and easily generates modality conversion are overcome, and the nondestructive detection method can serve the nondestructive detection remotely, quickly and completely, and is further popularized to the nondestructive detection of the corrosion of narrow strip metal structures.
Owner:BEIJING UNIV OF TECH +2
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