公开(公告)号：US11349253B2

公开(公告)日：2022-05-31

申请号：US16770197

申请日：2018-12-05

Applicant: IXBLUE

Inventor： Hervé Arditty ,  Sébastien Grall ,  Jonathan Laporte ,  Christian Giroussens ,  Gildas Touin ,  Frédéric Mosca ,  Eric Delort ,  Carole Chaize

IPC: H01R13/523 ,  H01R13/533 ,  H01R43/26 ,  H02G1/10

Abstract: A method for connecting a movable connector part to a stationary connector part, the movable part being initially placed on a support and the stationary part being covered by a cap. The method includes gripping the cap by element of a lifting tool (10); depositing the cap (6) on the movable part by element of the lifting tool; and transporting the assembly of the cap and movable part onto the stationary part, by element of the lifting tool, in order to connect the stationary part and the movable part (4) to each other.

公开(公告)号：US11319037B2

公开(公告)日：2022-05-03

申请号：US16768758

申请日：2018-11-30

Applicant: IXBLUE

Inventor： Sébastien Grall

IPC: B63B41/00 ,  B63B79/10 ,  B63B1/04 ,  B63B3/38 ,  B63B3/48 ,  B63H21/17 ,  B63B1/24

Abstract: The invention relates to a floating maritime vessel including at least one hull beneath a deck, the hull extending between a bow and a stern in a longitudinal direction of the vessel, the vessel including, on its lower part, a removable keel and, on its upper part, a conning tower erected above the deck, the keel being able to be descended below the hull and raised back through the hull, the keel including a lower end and an upper end, the upper end of the keel connecting to the hull when the keel is in its lowered position. According to the invention, the conning tower contains a keel-storage space and the keel and the keel-storage space of the conning tower are aligned such that the keel can be raised by upward translation at least partly into the keel-storage space of the conning tower.

公开(公告)号：US20210368612A1

公开(公告)日：2021-11-25

申请号：US16766385

申请日：2018-11-22

Applicant: IXBLUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Henri PORTE ,  Baptiste BATTELIER

IPC: H05H3/04 ,  H01S5/00 ,  H01S5/125 ,  H01S5/042 ,  G02F1/01 ,  G02F1/37 ,  G02F1/31 ,  H01S5/0687 ,  G02F1/355 ,  H01S3/067 ,  H01S5/50 ,  H01S3/00 ,  H01S3/13

Abstract: Disclosed is a device for interaction between a laser beam and a hyperfine energy transition of a chemical species. The device further includes an electro-optic modulator with a single sideband with an input optical waveguide suitable for receiving a source laser beam and an output optical waveguide suitable for generating an output laser beam and an electronic system suitable for generating and applying, simultaneously, a first modulated electrical signal, sin(Ω1t)) to a first hyperfrequency pulse on a first high-frequency electrode of the electro-optic modulator and, respectively, another modulated electrical signal, cos(Ω1t)) to the first pulse on another high-frequency electrode of the electro-optic modulator, in such a way as to frequency-switch the output laser beam to a first optical frequency offset from the first pulse with respect to the initial optical frequency.

公开(公告)号：US20210319925A1

公开(公告)日：2021-10-14

申请号：US17227023

申请日：2021-04-09

Applicant: IXBLUE

Inventor： Pierrick CHEINEY ,  Baptiste GOURAUD ,  David Brynle BARRETT ,  Baptiste BATTELIER ,  Philippe BOUYER

IPC: G21K1/00 ,  G01P15/093 ,  G02B27/28 ,  G02B5/18

Abstract: Disclosed is an atomic interferometer including a source of atoms, a laser source and a magnetic field generating device, a polarizer, a system for adjusting a detuning between two optical frequencies of the incident laser beam, a two-dimensional diffraction grating arranged in such a way as to receive the incident laser beam and to form by diffraction at least three diffracted beams, a controller configured to select a combination of an optical frequency detuning, a polarization state and a magnetic field, the combination being adapted to select a first pair of laser beams among the pairs of beams formed from the incident laser beam and the diffracted beams, the pair of laser beams being applied in such a way as to interact with the cloud of atoms by multi-photon transitions and to detect an acceleration of the cloud of atoms along a measurement direction.

公开(公告)号：US10578436B2

公开(公告)日：2020-03-03

申请号：US16311488

申请日：2017-06-20

Applicant: IXBLUE

Inventor： Eric Ducloux

IPC: G01C19/72

Abstract: Disclosed is a system for the interferometric measurement of a physical parameter, including an amplified spontaneous emission light source, optically connected to a Sagnac ring interferometer, and two detectors, each supplying a measurement signal representative of the light output from the interferometer, and a reference signal representative of the light output emitted by the source, which is impaired by an excess relative intensity noise. This measurement is obtained from a difference between the measurement and reference signals, weighted by a weighting coefficient which is controlled to minimise the statistical deviation of an additional weighted difference between signals obtained by demodulating the measurement and reference signals by way of an additional digital demodulation sequential code insensitive to the parameter. Also disclosed is a gyroscope including such a measuring system.

公开(公告)号：US20190233071A1

公开(公告)日：2019-08-01

申请号：US16339640

申请日：2017-10-03

Applicant: IXBLUE

Inventor： Sébastien GRALL

IPC: B63G8/00 ,  B63B23/48

CPC classification number: B63G8/001 ,  B63B23/48 ,  B63B2027/165 ,  B63B2205/06 ,  B63B2211/02 ,  B63B2241/20 ,  B63G2008/007 ,  B63G2008/008

Abstract: Disclosed is a measurement system for aquatic environments, including a surface vessel and a submersible device, the submersible device including a hull, propulsion, guide, and sensors for taking measurements. The submersible device can either be launched from the vessel in order to then maneuver underwater independently of the vessel during a remote deployment phase, or be stored in a vessel during a non-deployment phase, the vessel including at least one hull and propulsion and guide, the at least one hull of the vessel including a submerged portion located below a waterline. The submerged portion of the at least one hull of the vessel includes a recess designed to receive at least an upper portion of the hull of the submersible device when the latter is stored in the vessel, the recess being arranged entirely below the waterline so that the submersible device remains completely submerged during storage.

公开(公告)号：US20190060954A1

公开(公告)日：2019-02-28

申请号：US15767035

申请日：2016-10-05

Applicant: IXBLUE

Inventor： Frédéric MOSCA ,  Raphaël EYMARD ,  Guillaume MATTE

IPC: B06B1/06 ,  G10K15/04

Abstract: Disclosed is a broadband underwater acoustic transceiver device. The device can be used in particular for positioning, detection, range finding or underwater acoustic communication. The device coaxially combines, within a transceiver device, a Tonpilz transducer and a FFR transducer, the FFR being arranged in front of the transmission face/horn of the Tonpilz transducer. In such a configuration, the Tonpilz horn also acts as reflective tape for the FFR transducer, forming a common tape-horn element. Furthermore, an annular baffle surrounding the Tonpilz pillar creates a Helmholtz cavity for broadening the emission band towards the low frequencies.

公开(公告)号：US09945670B2

公开(公告)日：2018-04-17

申请号：US15121620

申请日：2015-02-26

Applicant: IXBLUE

Inventor： Herve Lefevre ,  Frederic Guattari ,  Cedric Molucon ,  Stephane Chouvin

IPC: G01C19/72 ,  G01B9/02

CPC classification number: G01C19/722 ,  G01B9/02 ,  G01B2290/70 ,  G01C19/726 ,  G01C19/727

Abstract: Interferometric measurement device includes a light source emitting a source signal and optical coupling elements receiving the source signal, directing part of the latter towards a measurement pathway including a Sagnac ring interferometer, of frequency fp, producing a power output signal POUT polarized according to a first polarization direction, tapping off another part of the source signal towards a compensation pathway producing a return power compensation signal PRET, and directing the output and compensation signals towards detection elements. The compensation pathway includes polarization rotation elements producing the compensation signal according to a second cross-direction of polarization, and optical looping elements redirecting part of the compensation signal towards the measurement pathway; the detection elements include a single detector connected to the coupling elements for receiving the output signal and the compensation signal; the device further includes power equilibration elements equalizing the output power and/or return power are routed towards the detector.

公开(公告)号：US20170322523A1

公开(公告)日：2017-11-09

申请号：US15526489

申请日：2015-11-18

Applicant: IXBLUE

Inventor： Bernard VAU

IPC: G05B13/04 ,  G05B17/02 ,  G06F17/14

CPC classification number: G05B13/042 ,  G05B17/02 ,  G05B19/19 ,  G05B2219/41161 ,  G06F17/14

Abstract: A dry friction compensation method for at least one mass or inertia M mobile under the effect of at least one effector element controlled by a force or torque control signal U, the motion of the mass or inertia being characterized by a motion signal Y chosen among one or several of the position X, the speed V and the acceleration, the method includes: defining an ideal model of the closed loop; defining a dry friction compensation control law; the dry friction compensation control law being based on the following friction model: P = min  ( max  ( VM τ + U , - S ) , S ) , where V is the speed of the mobile mass or inertial subjected to the friction and τ a minor time constant, and S is a parameter of dry friction.

公开(公告)号：US09739614B2

公开(公告)日：2017-08-22

申请号：US14396823

申请日：2013-04-25

Applicant: IXBLUE

Inventor： Herve Lefevre ,  Frederic Guattari ,  Cedric Molucon ,  Eric Ducloux ,  Sebastien Ferrand

IPC: G01C19/72 ,  G01C21/00

CPC classification number: G01C19/721 ,  G01C19/726 ,  G01C21/00

Abstract: A fiber-optic measurement device (10) includes a SAGNAC ring interferometer (20) having a proper frequency fp, a detector (14) and a modulation chain (30) generating a phase-shift modulation φm(t) between the two counter-propagating waves (24, 25) propagating in the ring interferometer. The device aims to reduce measurement faults due to the linearity defects in the modulation chain of such a measurement device with optical fiber. For this reason, the fiber-optic measurement device reduces the amplitude of the phase-shift modulation φm(t) which is the sum of a first biasing phase-shift modulation component φb1(t) and a first counter-reaction phase-shift modulation component φcr1(t), the phase-shift modulation φm(t) falling or rising by twice the amplitude of the first biasing phase-shift modulation component φb1(t). A rate gyro including such a measurement device and an inertial stabilization or navigation unit including at least one such rate gyro are also described.