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636results about "Influence generators" patented technology
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Device for controlling the displacement of a drop between two or several solid substrates
ActiveUS20050179746A1Fixed microstructural devicesVolume/mass flow measurementElectrical controlEngineering
The invention concerns a device for reversibly displacing at least one volume of liquid (10) under the effect of an electrical control, comprising first electrically conductive means (8), second electrically conductive means (4), and means for inducing a reversible displacement of a volume of liquid, from the first to the second electrically conductive means, without contact with said conductive means during the displacement.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1
Triboelectric Generator
A generator includes a thin first contact charging layer and a thin second contact charging layer. The thin first contact charging layer includes a first material that has a first rating on a triboelectric series. The thin first contact charging layer has a first side with a first conductive electrode applied thereto and an opposite second side. The thin second contact charging layer includes a second material that has a second rating on a triboelectric series that is more negative than the first rating. The thin first contact charging layer has a first side with a first conductive electrode applied thereto and an opposite second side. The thin second contact charging layer is disposed adjacent to the first contact charging layer so that the second side of the second contact charging layer is in contact with the second side of the first contact charging layer.
Owner:GEORGIA TECH RES CORP
Triboelectric Generators and Sensors
ActiveUS20140338458A1Vibration measurement in solidsForce measurement by measuring frquency variationsRechargeable cellEngineering
A triboelectric power system includes a triboelectric generator, a rechargeable energy storage unit and a power management circuit. The rechargeable energy storage unit is associated to the triboelectric generator. The power management circuit is configured to receive an input current from the triboelectric generator and to deliver an output current corresponding to the input current to the rechargeable battery so that the output current has a current direction and a voltage that will recharge the rechargeable battery.
Owner:GEORGIA TECH RES CORP
Method and apparatus for energy harvesting using microfluidics
ActiveUS7898096B1Piezoelectric/electrostriction/magnetostriction machinesMachines/enginesMicrofluidicsEngineering
An apparatus comprising a mechanical-to-electrical energy converting device having a plurality of electrodes and a fluidic body which comprises spatially separated conductive and dielectric liquid regions. Said fluidic body is configured to reversibly move as a whole with respect to said plurality of electrodes under the influence of a mechanical force. Each cycle of said reversible motion of said fluidic body causes multiple alternations of the amount of electrical charge accumulated by the electrodes, whereby generating electrical current flow between said electrodes.
Owner:KRUPENKIN THOMAS NIKITA
Device for controlling the displacement of a drop between two or several solid substrates
ActiveUS7531072B2Fixed microstructural devicesVolume/mass flow measurementElectrical controlSolid substrate
A device for reversibly displacing at least one volume of liquid under the effect of an electrical control, including first electrically conductive device, second electrically conductive device, and a device for inducing a reversible displacement of a volume of liquid, from the first to the second electrically conductive devices, without contact with the conductive device during the displacement.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1
Energy Harvester with Adjustable Resonant Frequency
ActiveUS20080129147A1Facilitates great functionalityLess limitationPiezoelectric/electrostriction/magnetostriction machinesTyre measurementsCapacitanceElectricity
The present subject matter discloses devices, systems, and methodologies for harvesting power from environmentally induced vibrations. Piezoelectric devices (24) and structures are disclosed that may be employed in combination with electro-magnetic (100) or capacitive (92, 94) elements to enhance the power harvesting capabilities of the piezoelectric devices (24). The electromagnetic (100) and capacitive (92, 94) elements may be used to assist in maintaining system mechanical resonance in order to maximize energy harvesting capabilities. Power harvesting devices and systems in accordance with the subject technology may concurrently operate as sensors in motion sensitive applications thus providing self-powered monitoring capabilities.
Owner:MICHELIN RECH & TECH SA
Multiple element electrode cMUT devices and fabrication methods
ActiveUS8008835B2Optimizing receiptFacilitate transmissionMaterial analysis using sonic/ultrasonic/infrasonic wavesPiezoelectric/electrostriction/magnetostriction machinesCapacitanceCapacitive micromachined ultrasonic transducers
Owner:GEORGIA TECH RES CORP
Energy generating systems for implanted medical devices
InactiveUS20090171404A1Easy to movePiezoelectric/electrostriction/magnetostriction machinesFrom muscle energyMedical deviceBiomedical engineering
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV +1
Electromechanical transducer and method of manufacturing the same
InactiveUS20110115333A1Line/current collector detailsMechanical vibrations separationElectromechanical transducerElectrical and Electronics engineering
An electromechanical transducer, including: a plurality of devices each including at least one cell including a first electrode and a second electrode facing each other across a gap; and an outer frame extending along an outer periphery of the plurality of devices, wherein the first electrode of each of the devices each includes a plurality of portions formed by electrically separating a device substrate with grooves, wherein the outer frame includes a part of the device substrate surrounding the plurality of portions and electrically separated from the plurality of portions by the grooves, wherein the first electrodes each including the plurality of portions are respectively bonded to a plurality of conductive portions of another substrate via a plurality of electrode connection portions, and wherein the outer frame is bonded to a corresponding portion of the another substrate via a circular outer frame connection portion which surrounds the electrode connection portions.
Owner:CANON KK
Process for producing capacitive electromechanical conversion device, and capacitive electromechanical conversion device
InactiveUS20110084570A1Poor bondingBeacon systems using ultrasonic/sonic/infrasonic wavesWave amplification devicesBond interfaceEngineering
A process for producing a capacitive electromechanical conversion device by bonding together a substrate and a membrane member to form a cavity sealed between the substrate and the membrane member, the process for producing a capacitive electromechanical conversion device comprises the steps of: providing a gas release path penetrating from a bonded interface between the substrate and the membrane member to the outside, and forming the cavity by bonding the membrane member with the substrate with the gas release path provided; the gas release path being provided at a location where the path does not communicate with the cavity.
Owner:CANON KK
Thermally conductive thermal actuator and liquid drop emitter using same
ActiveUS7073890B2Reduce frequencyWithout excessive riseInking apparatusInfluence generatorsYoung's modulusEngineering
A thermal actuator for a micro-electromechanical device is disclosed. The thermal actuator includes a base element and a movable element extending from the base element and residing at a first position. The movable element includes a barrier layer constructed of a barrier material having low thermal conductivity material, bonded between a first layer and a second layer; wherein the first layer is constructed of a first material having a high coefficient of thermal expansion and the second layer is constructed of a second material having a high thermal conductivity and a high Young's modulus. An apparatus is provided adapted to apply a heat pulse directly to the first layer, causing a thermal expansion of the first layer relative to the second layer and deflection of the movable element to a second position.
Owner:EASTMAN KODAK CO
Energy harvester with adjustable resonant frequency
ActiveUS7471033B2Compact manufacturingProcess compatiblePiezoelectric/electrostriction/magnetostriction machinesTyre measurementsCapacitanceElectricity
The present subject matter discloses devices, systems, and methodologies for harvesting power from environmentally induced vibrations. Piezoelectric devices (24) and structures are disclosed that may be employed in combination with electro-magnetic (100) or capacitive (92, 94) elements to enhance the power harvesting capabilities of the piezoelectric devices (24). The electromagnetic (100) and capacitive (92, 94) elements may be used to assist in maintaining system mechanical resonance in order to maximize energy harvesting capabilities. Power harvesting devices and systems in accordance with the subject technology may concurrently operate as sensors in motion sensitive applications thus providing self-powered monitoring capabilities.
Owner:MICHELIN & CO CIE GEN DES ESTAB MICHELIN
Method and Micro Power Generator For Generating Electrical Power From Low Frequency Vibrational Energy
ActiveUS20080136562A1Piezoelectric/electrostriction/magnetostriction machinesImpedence networksFrequency changerEngineering
A method and a micro power generator for generating electrical power from low frequency, vibrational energy includes a frequency up-conversion process. The generator is preferably an electromagnetic, vibration-to-electrical power generator which can efficiently scavenge energy from low frequency external vibrations. The generator up-converts low frequency environmental vibrations to a much higher frequency through a mechanical frequency up-converter, and hence provides efficient energy conversion even at low frequencies. This mechanical frequency up-conversion process can be realized in a number of ways. A magnetic method is described as an example. After frequency up-conversion, voltage is induced on coils mounted on resonators by electromagnetic induction. Due to the movement of the coils on their respective resonating cantilevers with respect to the magnet, voltage is generated on the coils and energy conversion is realized.
Owner:RGT UNIV OF MICHIGAN
Method and system using liquid dielectric for electrostatic power generation
InactiveUS20060077762A1Not easy to wearImprove uniformityMechanical recordingRecord information storageEngineeringElectret
A system and method for generating power. The system has a first electrode member comprising a first region and a second electrode member comprising a second region. Preferably, the second electrode member is coupled to the first electrode member. An electret is coupled between the first electrode member and the second electrode member. The system has a spatial region provided between the first region of the first electrode member and the second region of the second electrode member. A volume of fluid (e.g., liquid, liquid and solids, gas and liquid, solids and gases) is provided between the first region and the second region and is adapted to move between the first region and the second region to cause a change in an electric field characteristic within a portion of the spatial region by the movement of at least a portion of the fluid within the portion of the spatial region to generate a change in voltage potential between the first electrode and the second electrode.
Owner:CALIFORNIA INST OF TECH
Vibration-to-electric energy generator and method of same
InactiveUS20050093302A1Accurately determineHigh outputBlasting cartridgesApparatus without intermediate ac conversionElectricityTime control
A vibration-to-electric energy generator using a resonant variable capacitor (RVC) which converts vibration energy to electric energy in an environment where any kind of vibration may occur, the generator can generate electricity optimally and adaptive to change in frequency, amplitude, and phase of vibration energy. The generator includes RVC, initial charge assurance circuit, start and halt circuit, reference clock generator, pulse generation circuit, charge transportation circuit, and output control circuit. The initial charge assurance circuit and start and halt circuit control and save the conditions of electricity generating operation. The reference clock generator and pulse generation circuit generate reference signal and timing control signals in sync with vibration energy applied to the generator. By timing control signals, the charge transportation circuit charges and discharges the RVC, thus generating electric energy. The output control circuit stabilizes generated electric power.
Owner:HITACHI LTD
Microstructure with enlarged mass and electrode area for kinetic to electrical energy conversion
InactiveUS7880246B2Output maximizationIncrease the areaAcceleration measurement using interia forcesSemiconductor/solid-state device detailsCapacitanceBiomedical engineering
A microstructure has a substrate, a fixed electrode having a plurality of fixed fingers fixed to the substrate, a movable electrode having a body (28) and a plurality of fingers (22) extending from the body, the movable electrode being movable relative to the fixed fingers to vary a capacitance of the electrodes. The fixed fingers (21) extend in a first plane parallel to a main surface of the substrate, wherein the body of the movable electrode extends in a second plane adjacent to the first plane so that the body faces at least some of the plurality of fixed fingers. Such vertical integration can help enable such devices to be made more compact.
Owner:STICHTING IMEC NEDERLAND
Electronic skin of friction electrostatic induction type
ActiveCN106382997ASelf-drivingImprove stabilityForce measurement using piezo-electric devicesInfluence generatorsHuman bodyHuman skin
The invention provides an electronic skin of a friction electrostatic induction type, and the electronic skin comprises a friction layer, an upper electrode, an insulating layer, a lower electrode and a flexible substrate, wherein the friction layer, the upper electrode, the insulating layer, the lower electrode and the flexible substrate are sequentially arranged in a fixed manner from the top to the bottom, and the upper and lower electrodes are insulated from each other. Each intersection point of the upper and lower electrodes represents one detection position. When human skin touches any detection position, the corresponding electrodes of the upper and lower electrodes respectively output a signal, so the touch position can be obtained. The electronic skin employs the friction electrostatic induction effect, and generates an electric signal through the contact and separation of a human body with the friction layer, so as to sense the touch condition of an external object. The electronic skin has a self-drive function, is good in stability, is high in sensitivity, and is quick in response. Meanwhile, the electronic skin employs a flexible polymer thin film material with the biocompatibility, and is wide in application range.
Owner:UNIV OF SCI & TECH BEIJING
Rail based electric power generation system
ActiveUS7148581B2Facilitates co-generationRaise the potentialIn situ pavingsVehicle energy devicesCapacitanceElectric power
An electrical power generation system comprises a variable capacitor and a power source. The electrical power generation system is configured to generate electric power via movements of the rail. The power source is used in the form of a generator to prime the variable capacitor that effectively multiplies the priming energy of the power source by extracting energy from the passing vehicle. By alternately priming the variable capacitor using charge from the power source and discharging it at a later time in a cyclic manner to change the capacitance, a significantly large amount of electrical energy is produced due to change in capacitance than from the power source itself.
Owner:GENERAL ELECTRIC CO
Acoustic transducer and image generation apparatus
ActiveUS20100251823A1Ultrasonic/sonic/infrasonic diagnosticsAnalysing solids using sonic/ultrasonic/infrasonic wavesTransducerReflected waves
An acoustic transducer has a first transducer which transmits an acoustic primary wave having two frequency components, and a second transducer which, in order to receive a reflected wave of an acoustic secondary wave generated with propagation of the acoustic primary wave, is disposed so that a region for receiving the reflected wave is superimposed on the first transducer as seen along the direction of transmission of the acoustic primary wave.
Owner:OLYMPUS CORP
Composite power generator based on flowing liquid, power generation method and sensing method
ActiveCN105099260ASimple structureImprove convenienceSemi-permeable membranesFixed microstructural devicesPower sensorElectricity
Owner:BEIJING INST OF NANOENERGY & NANOSYST
MEMS device for an adaptive optics mirror
ActiveUS7099063B2Avoid large displacementSmall surface areaMountingsInfluence generatorsActuatorMirror plane
A MEMS device having a movable mirror pixel supported on a substrate and coupled to a motion actuator so as to enable rotation of the mirror pixel about an axis lying within the mirror plane. In one embodiment, the motion actuator has a movable electrode, on which the mirror pixel is mounted. The movable electrode is supported on the substrate by a pair of upright springs, each having two parallel segments joined at one end and disjoint at the other end. One disjoint segment end is coupled to the substrate, while the other disjoint segment end is coupled to the movable electrode. The end of the upright spring corresponding to the joined segment ends points away from the substrate such that (i) the spring body protrudes through a narrow slot in the mirror pixel and (ii) the mirror plane lies at about the mid-point of the spring.
Owner:LUCENT TECH INC
Energy recovering device with a liquid electrode
InactiveUS20100295415A1Amplification of capacitance variationSimple processInfluence generatorsCapacitanceCharge injection
An energy recovery device including: at least one capacitor with variable capacitance, the capacitor including a fixed electrode, a dielectric layer, and a liquid electrode; and a mechanism to inject an electric charge into the capacitor and to remove the electric charge therefrom, including a charge injection electrode forming a portion of the second face positioned upstream from the fixed electrode in the direction of displacement of the liquid electrode, and a charge removal electrode forming a portion of the second face positioned downstream from the fixed electrode in the direction of displacement of the liquid electrode.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Electrostatic device and method for recovering mechanical energy by triboelectric effect
A device for recovering energy including a first assembly and a second assembly facing each other, the first assembly including a first conductive element and a first dielectric element carried by the first conductive element, and the second assembly including a second conductive element. The first dielectric element is arranged between the first conductive element and the second conductive element. The device further includes a mechanism ensuring that the first dielectric element comes into contact with the second conductive element. A material of the first dielectric element and the material of the second conductive element have different triboelectric affinities.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Asymmetric membrane cmut devices and fabrication methods
ActiveUS20100256501A1Reduce parasitic capacitanceImprove electrical performanceUltrasonic/sonic/infrasonic diagnosticsSurgeryCapacitanceCapacitive micromachined ultrasonic transducers
Owner:GEORGIA TECH RES CORP
Flywheel system
A flywheel system has an approximately toroidal flywheel rotor having an outer radius, the flywheel rotor positioned around and bound to a hub by stringers, the stringers each of a radius slightly smaller than the outer radius of the flywheel rotor. The hub is suspended from a motor-generator by a flexible shaft or rigid shaft with flexible joint, the flywheel rotor having a mass, substantially all of the mass of the flywheel rotor comprising fibers, the fibers in large part movable relative to each other. The motor-generator is suspended from a damped gimbal, and the flywheel rotor and motor-generator are within a chamber evacuatable to vacuum. An electrostatic motor / generator can also be within the same vacuum as the flywheel.
Owner:VELKESS
Varying Capacitance Rotating Electrical Machine
ActiveUS20130106317A1Improve power densityManufacturing tolerancePiezoelectric/electrostrictive device detailsInfluence generatorsCapacitanceElectric machine
A varying capacitance rotating electrical machine provides capacitor elements, such as capacitor plates, that move with respect to each other as separated by a thin film of fluid, for example air, on which one capacitor element floats. In one embodiment, multiple plates provide for three-phase operation. Narrow gaps provided by the floating capacitor elements increase the power density of rotating electrical machine.
Owner:WISCONSIN ALUMNI RES FOUND
Method and micro power generator for generating electrical power from low frequency vibrational energy
ActiveUS7579757B2Piezoelectric/electrostriction/magnetostriction machinesMachines/enginesFrequency changerUp conversion
A method and a micro power generator for generating electrical power from low frequency, vibrational energy includes a frequency up-conversion process. The generator is preferably an electromagnetic, vibration-to-electrical power generator which can efficiently scavenge energy from low frequency external vibrations. The generator up-converts low frequency environmental vibrations to a much higher frequency through a mechanical frequency up-converter, and hence provides efficient energy conversion even at low frequencies. This mechanical frequency up-conversion process can be realized in a number of ways. A magnetic method is described as an example. After frequency up-conversion, voltage is induced on coils mounted on resonators by electromagnetic induction. Due to the movement of the coils on their respective resonating cantilevers with respect to the magnet, voltage is generated on the coils and energy conversion is realized.
Owner:RGT UNIV OF MICHIGAN
Thermoelectric conversion module, and heat exchanger, thermoelectric temperature control device and thermoelectric generator employing the same
InactiveUS20100193001A1Improve reliabilityIncrease usageThermoelectric device with peltier/seeback effectInfluence generatorsThermoelectric materialsTemperature control
A thermoelectric conversion module (10) comprises a first electrode member (13) arranged on a low temperature side, a second electrode member (14) arranged on a high temperature side, and p-type and n-type thermoelectric elements (11 and 12) arranged between and connected electrically with both the first and second electrode members (13 and 14). The thermoelectric elements (11 and 12) are composed of a thermoelectric material (half-Heusler material) containing an intermetallic compound having an MgAgAs crystal structure as a main phase and have a fracture toughness value K1C of not less than 1.3 MPa·m1 / 2 and less than 10 MPa·m1 / 2.
Owner:KK TOSHIBA +1
Environmental electrical generator
An electricity generator having variable capacitors that each includes a repeatedly stretched and relaxed sheet (20, FIG. 3) of SM (stretchable material) and electrodes (22, 24) lying against opposite faces of the sheet, which includes a power extraction unit (110, FIG. 9) coupled to the electrodes of at least a pair of capacitors that are activated out of phase with each other. The unit directs an electrical charge (current) from a first pair of electrodes that have a higher voltage, to one or more second pairs of electrodes that have a lower voltage, to recharge the second pairs of electrodes. During the current flow electrical power is extracted by the drop in voltage of current passing through the unit. The power extraction unit can be provided with a control unit that has voltage detectors (54) and that selectively connect capacitors, based on their voltages, for maximum efficiency in generating power output.
Owner:SINGLE BUOY MOORINGS INC
Micromechanical device
ActiveUS20130301101A1Effective drive mechanismLarge deflectionMirrorsCapacitor with electrode distance variationBiomedical engineeringVoltage
The force on the electrodes of an electrostatic field is used so that lateral tensile or compressive forces result which can deform a deformable element or can strongly deflect a deflectable structure. For this, a micromechanical device includes, apart from an electrode and a deformable element, an insulating spacer layer via which the electrode is fixed to the deformable element, wherein the insulating spacer layer is structured into several spaced-apart segments along a lateral direction, so that by applying an electric voltage between the electrode and the deformable element lateral tensile or compressive forces bending the deformable element along the lateral direction result. Thereby, the problem that normally accompanies electrostatic drives, namely the problem of the pull-in effect, is overcome. The deflection of the deformable element can be much larger than the gaps of the two electrodes, i.e. the above-mentioned electrode and the deformable element. A usage as a sensor is also possible.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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