97 results about "Resonant energy" patented technology

A high power wireless resonant energy transfer system transfers energy across an airgap.

A high power wireless resonant energy transfer system transfers energy across an airgap.

An integrated MEMS resonant generator system includes a substrate, a plurality of piezoelectric micro generators disposed on the substrate, the micro generators each generating a voltage output in response to vibrational energy received, and at least one power processor disposed on the substrate. The power processor electrically coupled to outputs of the plurality of micro generators. When the input conditions change, the power processor can dynamically adjust its switching functions to optimize the power delivered to a load or energy storage reservoir.

A biosensing device for detecting biological analytes, and methods of use and manufacture, are disclosed. The device includes a biosensing element that can remain implanted for extended periods of time. The biosensing element is connected to an optical fiber terminating outside of the body. The optical fiber is also connected to an information analyzer. The information analyzer directs light through the optical fiber into the biosensing element. The light excites fluorophores, created by a chemical reaction between analytes and biosensing material within the biosensing element. Emitted fluorescent light is redirected through the optical fiber to the information analyzer. Detectors detect the deflected fluorescent emissions and, according to their determined wavelength, report the presence or quantity of specific analytes to the patient on an external display.

A method and apparatus for storing liquid within a storage tank such that a natural resonance of fluid motion of the stored fluid falls between natural resonance periods of a floating vessel that includes the storage tank. As a result, resonant energy of the floating vessel imparted to fluid stored in the storage tank may be controlled and sloshing loads may be reduced, thereby avoiding damage to the floating vessel.

An apparatus for generating seismic body waves in a hydrocarbon reservoir includes a closed-loop borehole source having a resonant cavity for generating resonant energy, a drive source and a control unit. The drive source injects pressure pulses to the resonant cavity at a predetermined or selectable pressure and frequency. The fluid circulates between the cavity and the drive source in a closed-loop fashion. In another embodiment, the borehole source utilizes a smart or controllable material that is responsive to an applied excitation field. The cavity includes an excitation coil for providing an excitation field that changes a material property of the smart fluid. The control unit is programmed to adjust operating parameters to produce seismic waves having a selected frequency and amplitude. In one embodiment, a control unit adjusts operating parameters in response to measured parameters of interest or surface commands.

The invention discloses a non-radioactive magnetic resonant energy transmission system based on a serial-parallel circuit model. The system comprises a pair of congruent coils and a circuit consisting of additional capacitors, and is characterized in that: the circuit connected with the coils is a serial-parallel circuit model, namely that the leads at the two ends of the coils are connected in parallel with a capacitor; then the parallel circuit is connected in series with another capacitor; and finally a transmitting coil is connected with a high-frequency transmitting power supply, and a receiving coil is connected with a receiving load. The novel system has the advantages of a serial circuit and a parallel circuit model, the transmission efficiency is remarkably improved, and the transmission distance is increased. Meanwhile, the maximum energy transmission efficiency under different distances can be realized by adjusting the serial capacitor and the parallel capacitor.

A laser gain medium. The novel laser gain medium includes a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close proximity to the quantum dots such that energy absorbed by the quantum dots is non-radiatively transferred to the ions via a Forster resonant energy transfer, thereby exciting the ions to produce laser output. In an illustrative embodiment, each quantum dot is surrounded by an external shell doped with the laser active ions.

The invention relates to a multi-group section perturbation method for uncertainty analysis of reactor physics calculation. The multi-group section perturbation method comprises the following steps: (1), on the basis of ENDF / B, making a multi-group section database and a point-by-point section database at different temperatures by using a nuclear database section processing program NJOY, and making the point-by-point section database in a resonant reaction channel at a resonant energy section into an ultra-fine-group database according to the equal rib width; (2), perturbing the point-by-point section database in the energy section corresponding to a certain energy group in a certain reaction channel so as to obtain a perturbed point-by-point section database; (3), strictly transferring perturbation of the point-by-point section database into the multi-group section database by using a linear and nonlinear perturbation transferring method; and (4), reconstructing by adopting a reaction channel section self-consistency principle to obtain a perturbed multi-group section database. According to the invention, the section of a basic reaction channel can be finely sampled; approximate treatment in the multi-group section perturbation process can also be reduced; and thus, a precise multi-group section sample can be obtained.

Disclosed is an energy harvesting device which can produce electrical power from vibrational energy over a wide range of frequencies. The energy harvester includes a housing having opposing slots. A bendable substrate is at least partially positioned within the housing and at least partially extends through the opposing housing slots. A piezoelectric element is positioned on the bendable substrate and a weight cooperates with the bendable substrate. A stopper is positioned on each end of the bendable substrate that extends outside the housing; the stoppers are configured to maintain a portion of the bendable substrate within the housing such that the bendable substrate is freely movable within the housing. Vibrational energy causes collisions between the bendable substrate and the housing such that the forces on the piezoelectric element generate power.

A tunable nanoscale resonator has potential applications in precise mass, force, position, and frequency measurement. One embodiment of this device consists of a specially prepared multiwalled carbon nanotube (MWNT) suspended between a metal electrode and a mobile, piezoelectrically controlled contact. By harnessing a unique telescoping ability of MWNTs, one may controllably slide an inner nanotube core from its outer nanotube casing, effectively changing its length and thereby changing the tuning of its resonance frequency. Resonant energy transfer may be used with a nanoresonator to detect molecules at a specific target oscillation frequency, without the use of a chemical label, to provide label-free chemical species detection.

A tunable nanoscale resonator has potential applications in precise mass, force, position, and frequency measurement. One embodiment of this device consists of a specially prepared multiwalled carbon nanotube (MWNT) suspended between a metal electrode and a mobile, piezoelectrically controlled contact. By harnessing a unique telescoping ability of MWNTs, one may controllably slide an inner nanotube core from its outer nanotube casing, effectively changing its length and thereby changing the tuning of its resonance frequency. Resonant energy transfer may be used with a nanoresonator to detect molecules at a specific target oscillation frequency, without the use of a chemical label, to provide label-free chemical species detection.

The present invention is process of constructing nanometer biological device based on chemiluminescent resonant energy transfer principle. The nanometer biological device consists of preoxidase and fluorescent quantum dot as energy receptor, the fluorescent quantum dot is cadmium telluride glowing based on chemiluminescent resonant energy transfer principle, and the preoxidase is connected with the fluorescent quantum dot by means of covalent bond. The nanometer biological device has high water solubility, high stability and adjustable emission wavelength, and generates strong light signal by means of chemiluminescent resonant energy transfer. The nanometer biological device has amino acids and carboxyl radical in the surface, is easy to covalent combine with various probe molecules, and may be used in detection and tracing of biological molecule and cell and tissue imaging mainly.

The invention discloses a one-phase inverter modulation method including: subjecting modulating waves to full-wave rectification, comparing the rectified modulating waves with sawtooth carrier waves, generating bridge arm shoot-through signals and auxiliary switching signals by means of rising edge delay and rising edge detection, acting the shoot-through signals on a master switch during current conversion of the master switch, and supplying a follow current circuit to magnetizing of a resonant inductor so as to supply sufficient resonant energy. The one-phase inverter modulation method is simple in structure and capable of realizing full-range soft switching within a power frequency period, all switching devices realize zero voltage switching, switching loss is low, circuit efficiency is high, reverse recovery of diodes can be inhibited, and electromagnetic interference is reduced.

The invention discloses a zero voltage switch modulation method of a three-phase four-wire system zero voltage switch inverter. The zero voltage switch modulation method of a three-phase four-wire system zero voltage switch inverter includes the steps: comparing a three phase main switch modulated wave of a three-phase four-wire system zero voltage switch inverter with a sawtooth carrier wave; generating a main switch signal through an inverter and a rising edge time-delay module; comparing an auxiliary switch modulated wave of the three-phase four-wire system zero voltage switch inverter with the sawtooth carrier wave; generating a leg straight-through signal and an auxiliary switch signal through the rising edge time-delay module, the inverter and a falling edge time-delay module; and applying the effect of the straight-through signal to a full control main switch during the commutation process of the full control main switch of the three-phase four-wire system zero voltage switch inverter to supply a freewheeling loop for magnetizing of a resonant inductor so as to store enough resonant energy. The zero voltage switch modulation method of a three-phase four-wire system zero voltage switch inverter is simple in structure, and can realize full range soft switching in the power frequency period. Besides, all the switching devices can realize zero voltage switching so that the zero voltage switch modulation method of a three-phase four-wire system zero voltage switch inverter has low switching loss and high circuit efficiency, and can restrict reverse recovery of a diode and reduce electromagnetic interference.

An energy harvester for an aircraft comprises a first portion, a movable element and a kinetic-to-electric-energy-converter. The first portion includes a charge collecting device having an electrical permittivity different to that of air. The charge collecting device is configured to be exposed to an air flow. The movable element is configured to be driven by the charge of the charge collecting device, and the kinetic-to-electric-energy-converter is configured to generate energy by the movement of the movable element.

The invention relates to a single-stage high-power-factor feedback frequency conversion type resonant energy control circuit which comprises a set of power filter circuits, a set of electronic circuit combination loops, a set of high-power-factor pulse width control loops and a set of resonant networks, wherein each high-power-factor pulse width control loop internally comprises a transformer, two winding coils and a metal-oxide-semiconductor field effect transistor (MOSFET); and high-power-factor fixing power with settable feedback can be reached through the electronic circuit combination loops and resonant loops. The technology can be used for tube dimming and also ensure that the light emitting efficiency of tubes is improved, is suitable for tunes of various types of energy-saving lamps, daylight lamps, LED lamps, HID lamps, and the like, and can reduce the cost.

A microfluidic test module for detecting target nucleic acid sequences in a fluid, the test module having an outer casing configured for hand-held portability, the outer casing having an inlet for receiving the fluid containing the target nucleic acid sequences, a hybridization chamber mounted in the casing, the hybridization chamber containing electrochemiluminescent (ECL) probes for detecting the target nucleic acid sequences, each of the ECL probes having an ECL luminophore for emitting photons when in an excited state and a functional moiety for quenching photon emission from the ECL luminophore by resonant energy transfer, and electrodes for receiving an electrical pulse to excite the ECL luminophores, wherein, the hybridization chamber has a volume less than 900,000 cubic microns.

The invention discloses a resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device. The advantages of a giant magnetostrictive material that the energy density is great, the conversion efficiency is high and the responding speed is rapid are utilized, so that the giant magnetostrictive material is embedded into the vehicle suspension vibration reduction device; mechanical energy is converted into electromagnetic energy by a magnetostrictive converse effect and an electromagnetic induction principle; resonant frequency points of a plurality of LRC oscillation circuits are adjusted by a controller with a frequency tracking function, so that the circuit can reach a resonant energy consumption state and multi-mode passive vibration reduction is realized; a vibration reduction control signal is sent out by a control circuit and the vibration is balanced by driving a GMM through the magnetostrictive positive effect to realize active vibration reduction. The resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device has the beneficial effects that the resonant frequency self-tracking of the vibration reduction device is realized; the structure is simple, the respond is rapid, and the vibration reduction effect is good.

The invention discloses a design method of an electromagnetic resonant energy transmission system of a forward shunt coil, relates to a dual-forward shunt resonant coil manufacturing method applied towireless electric energy transmission, and mainly solves the problem of low system transmission efficiency caused by frequency splitting in near distance energy transmission of the wireless electricenergy transmission system. A dual-layer wound transmuting coil is designed; equivalently, internal coils with a certain number of turns are wound in the internal space of the original single-layeredone-way wound transmitting coil, so that external coils and the internal coils can be connected ''in a connection mode of head and head, and end and end'' to form the dual-forward shunt structure; andby virtue of the dual-forward shunt coil structure, sharp change of coupling strength between receiving and transmitting coils can be suppressed, influence generated by frequency splitting in near distance energy transmission to the system transmission efficiency can be lowered, and the transmission efficiency in the position of resonant frequency in near distance energy transmission of wirelesselectric energy transmission can be improved.

A composite cable and method provides for control of the cable, and particularly its vibration modes, in response to a wide range of resonant and non-resonant energy input. The cable comprises a non-Newtonian fluid (NNF) in a cavity of a flexible tube. The NNF is characterized by viscosity that varies with shear stress. A load applies shear stress to the NNF changing its viscosity to dampen motion of the cable. The cable may comprise inner and outer tubes that are separated by a NNF. The inner tube may be filled with the same or different NNF, a Newtonian fluid or void. A magnetic field magnetic field may be applied to further control the viscosity of the NNF. The magnetic field may be controlled in response to a sensed condition of the cable indicative of shear stress in the NNF to provide either positive or negative feedback.

The invention relates to an air intake manifold with an auxiliary resonant cavity, which is characterized in that a main resonant cavity (1) and the auxiliary resonant cavity (2) are arranged on the air intake manifold, wherein the main resonant cavity (1) provided with an airflow inlet and an airflow outlet is further communicated with the auxiliary resonant cavity (2). The air intake manifold has the advantages that according a Helmholtz principle, the auxiliary resonant cavity is added to the air intake manifold of the best length, so that the resonant energy within a certain rotating speed range and the air intake quantity of an engine is increased, the resonant energy and the air charge efficiency are improved, and the air charge quantity required by other rotating speeds is not influenced.

The invention relates to a chemical laser output device for sodium atoms in visible wave band, in particular the chemical laser for the sodium atoms in the visible wave band. N2O and main air current passing through a high-temperature tubular furnace hearth intersect and react in a gas outlet to form a SiO(b<3> pi) synthetic region; Na steam and the main air current passing through the synthetic region are mixed to form a near resonant energy transmission region; the region produces a sodium atom-Na(4d<2>D) in an excited state; the outer side of the near resonant energy transmission region is provided with an optical resonant cavity; the direction of optical axis of the optical resonant cavity is vertical to the direction of the main air current coming out from the near resonant energy transmission region; a spectrograph is arranged on an output optical circuit of the optical resonant cavity; and the spectrograph is connected with a signal of a computer testing control system through a circuit. The laser device has the advantages of compact structure and easy realization and control.

The invention belongs to the technical field of sensor preparation, and discloses construction of an ultra-sensitive electrochemiluminescence sensor and an application thereof to the aspect of trinitrotoluene detection. Micromolecular Luminol monosodium salt with negative electricity is inserted into hydrotalcite layers, hydrotalcite with Luminol intercalation and quantum dots with negative electricity are used in order to form an ECL sensor with a supermolecular composite film by means of electrostatic attraction layer by layer self assembly technology, and an ECL resonant energy transfer (ERET) system for detecting TNT is formed. The sensor is doublet detection, the ERET method is used for substantially enhancing ECL signals of luminal-quantum dots, and sensitivity and accuracy of TNT detection are substantially improved. In addition, the sensor has long service life and good stability; the sensor has small volume, high sensitivity, and low reagent loss, and is portable; the sensor can satisfy needs of TNT detection at the present stage.

A laser gain medium. The novel laser gain medium includes a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close proximity to the quantum dots such that energy absorbed by the quantum dots is non-radiatively transferred to the ions via a Forster resonant energy transfer, thereby exciting the ions to produce laser output. In an illustrative embodiment, each quantum dot is surrounded by an external shell doped with the laser active ions.

Disclosed are a device and a method for the design and fabrication of the device for enhancing the brightness of luminescent molecules, nanostructures, and thin films. The device includes a mirror, a dielectric medium or spacer, an absorptive layer, and a luminescent layer. The absorptive layer is a continuous thin film of a strongly absorbing organic or inorganic material. The luminescent layer may be a continuous luminescent thin film or an arrangement of isolated luminescent species, e.g., organic or metal-organic dye molecules, semiconductor quantum dots, or other semiconductor nanostructures, supported on top of the absorptive layer.

Provided is a system for monitoring temperature of one or more subject bodies, the system comprising a resonant reading circuit adapted to generate resonant wireless power loads; a resonant receiver circuit adapted to be magnetically connected to the resonant reading circuit for receiving the resonant wireless power loads and for generating power based on the power loads received; one or more temperature sensors adapted to be operatively connected to the resonant receiver circuit for deriving power and for measuring the temperatures of the one or more subject bodies respectively based on the resonant wireless power loads received; and a relay circuit adapted to be operatively connected to the one or more temperature sensors and to the resonant receiver circuit for relaying the measured temperatures to the resonant reading circuit via the resonant receiver circuit using wireless resonant energy transfer. There is further provided a temperature-sensing device and a storage apparatus.

A wireless sensor array communication system includes a plurality of wireless sensors each including a resonant circuit that is excited by an RF pulse so as to provide a resonant energy proportional to a measurand being monitored. A transceiver of an interrogator system transmits RF pulses to each of the sensors to excite the resonant circuits therein and receives RF signals transmitted from each of the sensors that are indicative of the resonant energy provided by the resonant circuit. A magnet-gradient coil arrangement of the interrogator system generates a magnetic field and selectively applies magnetic field gradients along a number of axes, such that a frequency and phase of the resonant energy provided by the resonant circuit of each wireless sensor is altered responsive thereto, with the altered frequency and phase of the resonant energy being a function of a location of the respective wireless sensor within the magnetic field.

A lightning rod vibration absorbing device for a substation comprises a ring hoop circumferentially sleeving on the outer wall surface of the top of the lightning rod body, the outer horizontal sleeveof the ring hoop is provided with an annular mass block, a spring and a damper are connected between the outer wall of the ring hoop and the inner wall of the annular mass block, a bracket is fixed on the lightning rod body above the ring hoop and extends outward, and the bracket is connected with the upper end face of the annular mass block through a suspension cable. The support frame adopts aplurality of support rods welded on the lightning rod body, and the support rods extend outward and are uniformly distributed on the outer periphery of the lightning rod. The utility model has the advantages of reasonable stress, firmness and reliability, and can effectively fix the vertical height of the annular mass. The annular mass is connected with the ring hoop fixed on the lightning rod surface by spring and damper, and the resonant energy absorption is achieved by using the inertial force or active control force of the annular mass to reduce the structural response, and then the influence of wind-induced vibration is effectively reduced.