Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Apix Analytics

Other

Centre National De La Recherche Scientifique

California Institute of Technology

Total Sa

Université Pierre Et Marie Curie (Paris 6)

Eif—astute

Analytical Pixels Technology-apix Technology

Total Se

L'université Pierre Et Marie Curie - (paris 6)

Eric Colinet

Laurent Duraffourg

Philippe Andreucci

Eric Ollier

Sebastien Hentz

Pierre Puget

Julien Arcamone

Edward B Myers

Joshua B Whiting

Anton Korniienko

Mélanie Petitjean

Chady Kharrat

Michael Roukes

Guillaume Jourdan

Thomas Ernst

Sébastien Hentz

Patrick Villard

Nicolas Pierre Delorme

Thomas Alava

Mykhailo Zarudniev

Bertrand Gomez

Charles-Marie Tassetti

Jeremie Ruellan

Philippe Coric

Sebastien Labarthe

Sébastien Labarthe

Mickael Lee Roukes

Carine Ladner

John Richard Ordonez Varela

Dimitri Galayko

Christophe Le Blanc

Matthieu Loriau

Michel Nowak

Frank Haeseler

Kévin Benedetto

Régis Barattin

Jerome Juillard

Phillipe Andreucci

Peter Thomas Stevens

Jean-Claude De Wit

Michael L Roukes

Joshua Whiting

Jérémie Ruellan

Thermal flux sensor with heating nanofilaments

The invention relates to a heat flux sensor including: a heating wire () including a material capable of being taken to a determined temperature by Joule effect, suited to being connected to an electrical source, a resonator () of nano electro mechanical system (NEMS) type including:

Heat flux sensor with heating wire

A device for analyzing a fluid, including a layer including a plurality of sensors of MEMS and/or NEMS type, a layer including a mechanism controlling the sensor and for processing information transmitted by the sensors, the control and processing mechanism being electrically connected to the detectors, and a layer positioned on the layer including the sensors on a side of a face including the sensors including a mechanism spatially and temporally distributing the fluid on the sensors.

Analysis device including a MEMS and/or NEMS network

A gas analysis system includes a fluidic channel for flow of a gas to be analyzed, a detector in the channel and adapted for measuring interactions of the gas with the detector, the detector including a resonator of the electromechanical nanosystem (NEMS) type and a heating system for heating a part of the detector, an actuation device for vibrationally actuating the resonator according to an excitation signal applied to an input of the detector, a detection device adapted for providing an output electric signal representative of the vibrations of the resonator, a read-out device connected to an input of the detector and configured for simultaneously measuring, from the output signal of the detector, the change in resonance frequency and the change in amplitude of the vibrations at the resonance frequency of the resonator, and a processing device configured for determining from the changes a fluidic characteristic of the gas.

System and method for analyzing a gas

Analyzerfor analyzing a fluidcontaining at least one substance to be analyzed and at least one inflammable substance containing:

Analyzer for fluids containing an inflammable substance and corresponding method

The invention relates to a measurement system including a network of nanoelectromechanical system (NEMS) resonators, characterized in that: each one of said resonators includes: an electrostatic activation device capable of generating a vibration of a beam exposed to said excitation signal, at least one piezoresistive stress gauge made of a doped semiconducting material, extending from the beam so as to detect a movement of said beam, the variation in the electrical resistance of said at least one gauge supplying an output signal; said network includes at least two groups of resonators, each group including at least two resonators having an identical empty resonance frequency, each group of resonators having an empty resonance frequency different from that of each other group; the resonators forming each group are connected in parallel; the groups of resonators forming said network are connected in parallel; said system includes a reading device designed to supply an excitation signal at the network input and to determine the resonance frequency of a group of resonators which is selected by injecting, into said excitation signal, a frequency component corresponding to the empty resonance frequency of each selected group of resonators, and by identifying, in the output signal of the network, a resonance frequency component of the selected group of resonators.

Measurement system including a network of nanoelectromechanical system resonators

A thermal flow sensor comprising at least one first element () suspended with respect to a support, said first suspended element () being of an electrically conductive material, first means () for biasing said suspended element () and first means () for measuring the variation of the electric voltage at the terminals of the suspended element (), said first suspended element () being formed by a nanowire and said first biasing means () are formed by an alternating current source the intensity of which provides heating of the first suspended element () by Joule effect.

Thermal flow sensor, gas sensor comprising at least one such sensor and Pirani gauge comprising at least one such sensor

The invention relates to a gas analysis system comprising, from upstream to downstream:

Gas analysis system comprising a gas spectrometer equipped with a micro-reflectron

The invention relates to a thermal flow sensor comprising:

Thermal flow sensor with vibrating element and gas sensor comprising at least one such sensor

A measuring system including: at least two electromechanical resonators each having a resonant frequency varying around an offload resonant frequency according to a physical quantity to be measured; at least one reading device connected to inputs of the resonators and configured to supply an excitation signal on the inputs; and a memory in which is recorded, for each resonator, offload resonance information relating to the offload resonant frequency of the resonator. Each reading device is configured to determine the resonant frequency of one or more resonators selected for reading by configuring at least one element of the reading device using the offload resonance information stored for each selected resonator.

Measuring system having electromechanical resonators, method for manufacturing such a system, and method for reading at least two electromechanical resonators

A device with a suspended beam and piezoresistive means of detecting displacement of the beam and a method of manufacturing the device are disclosed. The device comprises a support, a suspended beam, moving parallel to the plane of the support, and means of detecting displacement, comprising at least two piezoresistive strain gauges that are not in line with each other. The beam is suspended through detection means. The two gauges are located on two opposite lateral faces of the beam respectively.

Device with suspended beam and piezoresistive means of detecting displacement of the beam and method of manufacturing the device

A method of identifying an electronic or electromechanical system includes: applying at least one noise signal (u) as input to the system, applying an output signal of the system to a one-bit analog digital converter, acquiring a signal at the output of the converter, carrying out an estimation of the output of the system with aid of performing an estimation (&#x125;) of the impulse response of the system. The estimation (&#x125;) of the impulse response includes: iterative calculation of a plurality of nh elements (J, . . . , JJ) of a given criterion (J), each element including, respectively: at least one term of correlation between the signal at the output of the converter and the noise signal.

Estimation of the impulse response of a system on the basis of binary observations

A resonant filter including a matrix of n&#xd7;m resonators of N/MEMS type, each resonator including an actuating mechanism and a detection mechanism. An input of the filter, configured to receive an electrical input signal, is electrically connected to the resonator actuating mechanism. The outputs of the resonator detecting mechanism are electrically connected together and to an output of the filter, such that the signal to be obtained as an output of the filter is an image of the sum of the mechanical responses of the resonators. The resonators are not mechanically coupled together.

Resonant filter based on an N/MEMS matrix

An oscillator including two groups of elementary junctions having giant magnetoresistance effect traversed by electric currents, the junctions of each of the two groups being in series and energized by respective main currents and the voltages across the terminals of the groups being added together to provide a voltage on an output of the oscillating circuit. The voltage across the terminals of one or more junctions of a first group is applied to a first input of a phase comparator and the voltage across the terminals of one or more junctions of the other group is applied to another input of the phase comparator, the phase comparator providing on two outputs secondary currents of the same amplitude and of opposite signs, which are dependent on the mean phase difference between the voltages applied to the inputs, the secondary currents each being added to a respective main current.

Oscillating circuit with giant magnetoresistance effect junctions

A device for generating a clock signal, including a phase-locked loop including: a controlled oscillator to deliver a clock signal; plural phase comparators to compare a phase of the clock signal delivered by the controlled oscillator with plural clock signal phases applied at an input of the phase-locked loop; a mechanism for weighted summation of output signals of the plural phase comparators such that one or more of the weighting coefficients applied to one of the output signals has an absolute value that overrides the absolute values of the other weighting coefficients applied to the other output signals; and a mechanism filtering the weighted sum of the output signals of the plural phase comparators, to deliver at an output a control signal to the controlled oscillator.

Device for generating clock signals for asymmetric comparison of phase errors

Growing community of inventors

Grenoble, France

Eric Colinet