公开(公告)号：US20230178262A1

公开(公告)日：2023-06-08

申请号：US17924340

申请日：2021-05-07

Applicant: THALES

Inventor： Matthieu DUPONT-NIVET ,  Benjamin WIRTSCHAFTER

IPC: G21K1/00 ,  G01P3/36

CPC classification number: G21K1/006 ,  G01P3/36

Abstract: An atom chip for an ultracold-atom sensor, the chip includes an XY-plane normal to a Z-axis, the atom chip comprising: first and second coplanar waveguides suitable for propagating microwaves at respective angular frequencies ωa and ωb, the waveguides being placed symmetrically on either side of the X-axis and being referred to as X-wise guides, first and second coplanar waveguides suitable for propagating microwaves at respective angular frequencies ω′a and ω′b, the waveguides being placed symmetrically on either side of an axis the projection of which in the XY-plane is along an axis Y′ that is different from the X-axis and that is contained in the XY-plane, and being referred to as Y′-wise guides, the X-wise guides being electrically insulated from the Y′-wise guides, an intersection of the guides forming a parallelogram of center O defining an origin of the reference frame XYZ, at least a first conductive wire and a second conductive wire the respective projections of which in the XY-plane are secant at O and make between them an angle larger than or equal to 20°, the conductive wires being suitable for being passed through by DC currents.

公开(公告)号：US20250044092A1

公开(公告)日：2025-02-06

申请号：US18792323

申请日：2024-08-01

Applicant: THALES

Inventor： Benjamin WIRTSCHAFTER ,  Matthieu DUPONT-NIVET ,  Soizic HELLO

IPC: G01C19/64

Abstract: An interferometric inertial ultracold-atom sensor of gyrometer type, including an atom chip comprising at least one set of a first and second elementary sensor, a power-supplying device, the magnetic-field generator and the power-supplying device being configured to apply the magnetic field, the DC currents and the microwave signals in a predetermined sequence, the arrangement of the group of one or more conductive elements of each sensor and the sequence further being configured so that the path associated with the first elementary sensor and the path associated with the second elementary sensor are identical and traced simultaneously and in inverse directions by the clouds of ultracold atoms associated with a given internal state, the sensor further comprising a detecting system.

公开(公告)号：US20240426865A1

公开(公告)日：2024-12-26

申请号：US18662884

申请日：2024-05-13

Applicant: THALES

Inventor： Matthieu DUPONT-NIVET ,  Benjamin WIRTSCHAFTER ,  Soizic HELLO

IPC: G01P15/08 ,  G01C19/56

Abstract: An ultracold-atom sensor includes an atom chip (ACh) comprising a first and a second waveguide (CPWX1, CPWX2) that are suitable for propagating microwave waves and DC currents, at least a first conductive wire and a second conductive wire (WId, WId1) the respective projections of which are secant at a point defining a first crossing point (C1), an atom generation device (ACG), a power supply device (PSD) comprising at least one microwave generator (GMW) and at least one DC current generator (GDC), the power supply device being configured to apply, to the first and second waveguides and to spatially separate the two traps, the microwave signals in order to initiate the spatial separation, and then the CMW electric currents instead of the microwave signals in order to maintain the spatial separation.

公开(公告)号：US20220397397A1

公开(公告)日：2022-12-15

申请号：US17832616

申请日：2022-06-04

Applicant: THALES

Inventor： Benjamin WIRTSCHAFTER ,  Matthieu DUPONT-NIVET

IPC: G01C19/64 ,  H05H3/02

Abstract: An atom chip (Ach) for an ultra-cold atom sensor, the atom chip includes a first pair of waveguides, a second pair of waveguides, the projections of the guides along X and the guides along Y′ in the plane XY forming, at their intersection, a first parallelogram with a centre O and having a first surface, a first conductive strip and a second conductive strip arranged such that their respective projection in the plane XY forms, at their intersection, a second parallelogram also with a centre O and having a second surface, the strips being designed to be flowed through by DC currents, an intersection between the first and the second surface being greater than or equal to 40% of the first surface.

公开(公告)号：US20250076056A1

公开(公告)日：2025-03-06

申请号：US18951063

申请日：2024-11-18

Applicant: THALES

Inventor： Benjamin WIRTSCHAFTER ,  Matthieu DUPONT-NIVET

IPC: G01C19/64

Abstract: An atom chip (Ach) for an ultra-cold atom sensor, includes a measurement plane XY of the atom chip comprising: a plurality of first pairs of waveguides, a plurality of second pairs of waveguides, the projections in the plane XY of the first pair furthest from X and of the second pair furthest from Y′ forming, at their intersection, a parallelogram with a centre O, a first conductive wire having a projection in the plane XY along X or Y′ or a diagonal of the parallelogram, the first conductive wire being designed to be flowed through by a DC current, the first wire having a flaring so as to take the form of a surface whose projection in the plane XY incorporates the parallelogram and exhibits symmetry about the point O.

公开(公告)号：US20250044091A1

公开(公告)日：2025-02-06

申请号：US18792315

申请日：2024-08-01

Applicant: THALES

Inventor： Benjamin WIRTSCHAFTER ,  Matthieu DUPONT-NIVET ,  Soizic HELLO

IPC: G01C19/64

Abstract: An accelerometer-type interferometric ultracold atom inertial sensor including an atom chip including at least one set of a first and a second elementary sensor; an atom generation device; a generator for generating a uniform magnetic field; a power supply device; with the arrangement of the group of one or more conductive elements of each sensor and the sequence being further configured so that the trajectories associated with the first elementary sensor and the trajectories associated with the second elementary sensor are parallel to each other, are of the same length, are covered simultaneously and so that the departure direction of the first clouds, from the first and the second elementary sensor respectively, are opposite; the sensor further comprising a detection system.

公开(公告)号：US20220397396A1

公开(公告)日：2022-12-15

申请号：US17832615

申请日：2022-06-04

Applicant: THALES

Inventor： Benjamin WIRTSCHAFTER ,  Matthieu DUPONT-NIVET

IPC: G01C19/64

Abstract: An atom chip (Ach) for an ultra-cold atom sensor, includes a measurement plane XY of the atom chip comprising: a plurality of first pairs of waveguides, a plurality of second pairs of waveguides, the projections in the plane XY of the first pair furthest from X and of the second pair furthest from Y′ forming, at their intersection, a parallelogram with a centre O, a first conductive wire having a projection in the plane XY along X or Y′ or a diagonal of the parallelogram, the first conductive wire being designed to be flowed through by a DC current, the first wire having a flaring so as to take the form of a surface whose projection in the plane XY incorporates the parallelogram and exhibits symmetry about the point O.