Patents by Inventor NICOLAS GARRAUD
NICOLAS GARRAUD has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230216390Abstract: The invention relates to an energy recovery device including: a)—at least one first magnet, able to be set in movement according to a rotational or translational movement; b)—a main magnet, able to be set in rotation about an axis (ZZ?) by said at least first magnet; c)—at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more position(s) of equilibrium of the latter; d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein: in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil; for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet aType: ApplicationFiled: December 29, 2022Publication date: July 6, 2023Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Nicolas GARRAUD, Sebastien BOISSEAU, Ghislain DESPESSE, Baptiste ALESSANDRI
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Publication number: 20230194354Abstract: A method for determining the state of at least one sensor, the method using a first electromechanical transducer and a second electromechanical transducer that are coupled to a substrate, and a non-linear electrical circuit connected between the second electromechanical transducer and the sensor, the method comprising the steps of: applying an electrical signal at a first amplitude to the terminals of the first electromechanical transducer, and determining a first set of values of a parameter characteristic of the electrical impedance of the first electromechanical transducer in response to the application of the electrical signal; applying the electrical signal at a second amplitude to the terminals of the first electromechanical transducer, and determining a second set of values of the parameter characteristic of the impedance; measuring a difference between the first set of values and the second set of values; determining a state of the sensor on the basis of the difference between the first set of valuesType: ApplicationFiled: December 14, 2022Publication date: June 22, 2023Inventors: Ghislain DESPESSE, Olivier FREYCHET, Nicolas GARRAUD, Julien MARIANNE, Sébastien BOISSEAU, Tristan CAROFF
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Publication number: 20220399755Abstract: The present disclosure relates to systems and methods for tunable electrodynamic wireless power receivers. In some examples, a wireless power receiver electromechanically converts energy from a magnetic field using an oscillating or continuously rotating magnet. A sensing device detects an operational parameter of the receiver, and a tuning device initiates a tuning action based on the operational parameter.Type: ApplicationFiled: November 12, 2020Publication date: December 15, 2022Inventors: David P. Arnold, Alexandra Garraud, Nicolas Garraud
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Patent number: 11368049Abstract: The present disclosure relates to systems and methods for electrodynamic wireless power receivers. In some examples, a wireless power receiver electromechanically converts energy from a magnetic field. The wireless power receiver includes a planar suspension structure and at least one magnet. The planar suspension structure is tuned to cause oscillation of the at least one magnet at a resonance frequency based on a frequency of the time-varying magnetic field to generate electrical energy in the wireless power receiver.Type: GrantFiled: November 17, 2020Date of Patent: June 21, 2022Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: David Patrick Arnold, Alexandra Garraud, Nicolas Garraud
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Patent number: 11054416Abstract: The present disclosure is directed towards characterizing liquids through the use of magnetic discs that rotate in response to dynamic magnetic fields. In some embodiments, a light beam is transmitted into the liquid while the magnetic discs rotate, and one or more parameters of a light beam signal associated with the transmitted light beam are identified. Various characteristics of the liquid may be detected based on the one or more parameters of the light beam signal.Type: GrantFiled: January 11, 2018Date of Patent: July 6, 2021Assignee: University of Florida Research FoundationInventors: David P. Arnold, Nicolas Garraud
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Publication number: 20210075266Abstract: The present disclosure relates to systems and methods for electrodynamic wireless power receivers. In some examples, a wireless power receiver electromechanically converts energy from a magnetic field. The wireless power receiver includes a planar suspension structure and at least one magnet. The planar suspension structure is tuned to cause oscillation of the at least one magnet at a resonance frequency based on a frequency of the time-varying magnetic field to generate electrical energy in the wireless power receiver.Type: ApplicationFiled: November 17, 2020Publication date: March 11, 2021Inventors: David Patrick Arnold, Alexandra Garraud, Nicolas Garraud
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Patent number: 10634742Abstract: Disclosed are various embodiments for a system configured to characterize a magnetic response of a sample. The system can comprise an electrical source configured to generate a time-varying current supply, an excitation coil system coupled to the electrical source to generate a time-vary magnetic field for application to a sample, and a sensing coil system that senses a magnetic response of the sample in response to the time-varying magnetic field. The sensing coil system can comprise a pick-up coil and a balancing coil that can be translated or rotated. The balancing coil configured to cancel a feed-through induction signal. In another embodiment, the sensing coil system can comprise an adjustable fine-tuning coil that is configured to modify an effect of the cancellation of the feed-through induction signal.Type: GrantFiled: October 7, 2016Date of Patent: April 28, 2020Assignee: University of Florida Research Foundation, Inc.Inventors: Nicolas Garraud, Carlos Rinaldi, David P. Arnold
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Publication number: 20190064289Abstract: Disclosed are various embodiments for a system configured to characterize a magnetic response of a sample. The system can comprise an electrical source configured to generate a time-varying current supply, an excitation coil system coupled to the electrical source to generate a time-vary magnetic field for application to a sample, and a sensing coil system that senses a magnetic response of the sample in response to the time-varying magnetic field. The sensing coil system can comprise a pick-up coil and a balancing coil that can be translated or rotated. The balancing coil configured to cancel a feed-through induction signal. In another embodiment, the sensing coil system can comprise an adjustable fine-tuning coil that is configured to modify an effect of the cancellation of the feed-through induction signal.Type: ApplicationFiled: October 7, 2016Publication date: February 28, 2019Inventors: Nicolas Garraud, Carlos Rinaldi, David P. Arnold
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Patent number: 10218221Abstract: The present disclosure is directed towards wireless power transfer using one or more rotating magnets in a receiver. An exemplary embodiment provides for a system comprising a transmitter that generates a dynamic magnetic field and a receiver comprising a magnet and a coil. In operation, the magnet rotates in response to the dynamic magnetic field and induces a voltage across the coil.Type: GrantFiled: July 7, 2015Date of Patent: February 26, 2019Assignee: University of Florida Research Foundation, Inc.Inventors: David P. Arnold, Alexandra Garraud, Nicolas Garraud
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Publication number: 20180306874Abstract: An exemplary system for determining field characteristics using one dimension of a vector field utilizes a field measurement apparatus configured to acquire measurement data of the vector field corresponding to one dimension of the vector field and at least one computing device configured to simultaneously solve a set of equations characterizing the vector field by composing the set of equations into discrete counterparts, obtaining the measurement data of the vector field as input data for the discrete counterparts to the set of equations, and computing output data satisfying the discrete counterparts to the set of equations in at least one vector dimension that differs from the vector dimension of the input data using a matrices solution.Type: ApplicationFiled: January 6, 2017Publication date: October 25, 2018Inventors: NICOLAS GARRAUD, WILLIAM C. PATTERSON, DAVID P. ARNOLD
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Publication number: 20180159368Abstract: The present disclosure is directed towards wireless power transfer using one or more rotating magnets in a receiver. An exemplary embodiment provides for a system comprising a transmitter that generates a dynamic magnetic field and a receiver comprising a magnet and a coil. In operation, the magnet rotates in response to the dynamic magnetic field and induces a voltage across the coil.Type: ApplicationFiled: July 7, 2015Publication date: June 7, 2018Inventors: DAVID P. ARNOLD, ALEXANDRA GARRAUD, NICOLAS GARRAUD
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Publication number: 20180136201Abstract: The present disclosure is directed towards characterizing liquids through the use of magnetic discs that rotate in response to dynamic magnetic fields. In some embodiments, a light beam is transmitted into the liquid while the magnetic discs rotate, and one or more parameters a light beam signal associated with the transmitted light beam are identified. Various characteristics of the liquid may be detected based on the one or more parameters of the light beam signal.Type: ApplicationFiled: January 11, 2018Publication date: May 17, 2018Inventors: DAVID P. ARNOLD, NICOLAS GARRAUD
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Patent number: 9903860Abstract: The present disclosure is directed towards characterizing liquids through the use of magnetic discs that rotate in response to dynamic magnetic fields. In some embodiments, a light beam is transmitted into the liquid while the magnetic discs rotate, and one or more parameters a light beam signal associated with the transmitted light beam are identified. Various characteristics of the liquid may be detected based on the one or more parameters of the light beam signal.Type: GrantFiled: May 28, 2015Date of Patent: February 27, 2018Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATEDInventors: David P. Arnold, Nicolas Garraud
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Publication number: 20170097338Abstract: The present disclosure is directed towards characterizing liquids through the use of magnetic discs that rotate in response to dynamic magnetic fields. In some embodiments, a light beam is transmitted into the liquid while the magnetic discs rotate, and one or more parameters a light beam signal associated with the transmitted light beam are identified. Various characteristics of the liquid may be detected based on the one or more parameters of the light beam signal.Type: ApplicationFiled: May 28, 2015Publication date: April 6, 2017Inventors: DAVID P. ARNOLD, NICOLAS GARRAUD