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    Low power reduction of biases in a micro primary frequency standard
    1.
    发明授权
    Low power reduction of biases in a micro primary frequency standard 有权
    微型主频率标准中的低功耗降低

    公开(公告)号：US09077354B2

    公开(公告)日：2015-07-07

    申请号：US13759444

    申请日：2013-02-05

    Applicant: Honeywell International Inc.

    Inventor： Jennifer S. Strabley ,  Kenneth Salit ,  Karl D. Nelson ,  Ben Luey ,  Mike Anderson

    IPC: H03L7/26 ,  G04F5/14

    CPC classification number: H03L7/26 ,  G04F5/14

    Abstract: A method for reducing or eliminating clock bias in an atomic clock is provided. The method comprises cooling a population of atoms collected in the atomic clock using a laser locked at a predetermined frequency, turning off the laser, performing atomic clock spectroscopy, turning on the laser after the atomic clock spectroscopy, and relocking the frequency of the laser to an external reference cell. The population of atoms that are in each of two ground hyperfine levels is then probed using laser light that is on or near-resonant with a selected atomic transition.

    Abstract translation: 提供了用于减少或消除原子钟中的时钟偏差的方法。 该方法包括使用以预定频率锁定的激光来冷却原子钟中收集的原子群，关闭激光，执行原子钟分析，在原子时钟谱之后打开激光，并将激光频率重新锁定 外部参考单元。 然后使用与所选择的原子跃迁接近或接近谐振的激光来探测在两个地面超精细水平的每一个中的原子群体。

    ATOMIC REFERENCED OPTICAL ACCELEROMETER
    4.
    发明申请
    ATOMIC REFERENCED OPTICAL ACCELEROMETER 有权
    原子参考光学加速度计

    公开(公告)号：US20150204899A1

    公开(公告)日：2015-07-23

    申请号：US14162697

    申请日：2014-01-23

    Applicant: Honeywell International Inc.

    Inventor： Kenneth Salit ,  Mary Salit ,  Robert Compton ,  Jeff A. Ridley ,  Karl Nelson

    IPC: G01P15/093 ,  B81B7/02

    CPC classification number: G01P15/093 ,  B81B7/02 ,  G01P1/006 ,  G01P15/08 ,  G01P15/12 ,  G01P15/131

    Abstract: In some examples, a micro-electro-mechanical system (MEMS) optical accelerometer includes a housing comprising an internal chamber that includes a Fabry-Perot cavity and a proof mass affixed to the housing via one or more elastic elements, a light source configured to emit radiation, a first detector configured to receive radiation transmitted through the Fabry-Perot cavity and configured to generate one or more signals that indicate a position of the proof mass. The MEMS optical accelerometer further comprises an atomic wavelength reference and a second detector configured to detect radiation transmitted through the atomic wavelength reference and configured to generate one or more signals that indicate a wavelength of the radiation emitted by the light source, and a servomechanism electrically coupled to the second photo detector and the light source, configured to adjust the light source to maintain the radiation emitted by the light source at approximately a selected wavelength.

    Abstract translation: 在一些示例中，微电子机械系统（MEMS）光学加速度计包括壳体，该壳体包括内部腔室，该内部腔室包括法布里 - 珀罗空腔和经由一个或多个弹性元件固定到壳体的校验物质， 发射辐射，第一检测器被配置为接收透射通过法布里 - 珀罗腔的辐射并被配置为产生指示证明质量位置的一个或多个信号。 MEMS光学加速度计还包括原子波长参考和第二检测器，其被配置为检测透射原子波长参考的辐射并被配置为产生指示由光源发射的辐射的波长的一个或多个信号，以及电耦合的伺服机构 所述第二光检测器和所述光源被配置为调节所述光源以将由所述光源发射的辐射保持在大致选定的波长。

    SINGLE-BEAM RADIO FREQUENCY ATOMIC MAGNETOMETER
    5.
    发明申请
    SINGLE-BEAM RADIO FREQUENCY ATOMIC MAGNETOMETER 有权
    单波束无线电频率原子磁力计

    公开(公告)号：US20140375313A1

    公开(公告)日：2014-12-25

    申请号：US13922376

    申请日：2013-06-20

    Applicant: Honeywell International Inc.

    Inventor： Mary K. Salit ,  Kenneth Salit

    IPC: G01R33/26

    CPC classification number: G01R33/26 ,  G01R33/032

    Abstract: A radio-frequency atomic magnetometer comprises a laser, a photodetector, a vapor chamber, wherein the vapor chamber is in an optical path of laser light between the laser and photodetector, a circular polarizer configured to circularly polarize laser light emitted by the laser, wherein a circularly polarized laser beam is configured to pump into an oriented state, spins of atoms in the vapor chamber and to probe the atoms of the vapor chamber, wherein probing includes detecting a local radio frequency field; and a set of direct current (DC) field coils comprising at least one DC field coil, wherein the set of DC field coils is configured to generate a DC magnetic field oriented at 45 degrees relative to the optical axis of the laser light emitted by the laser and directed toward the vapor chamber; the set of DC field coils further configured to have adjustable DC magnetic field strength.

    Abstract translation: 射频原子磁强计包括激光器，光电检测器，蒸汽室，其中蒸气室处于激光和光电检测器之间的激光光路中，圆形偏振器被配置为使由激光器发射的激光圆偏振，其中 圆偏振激光束被配置为泵送到取向状态，蒸气室中的原子旋转并且探测蒸气室的原子，其中探测包括检测局部射频场; 以及包括至少一个DC场线圈的一组直流（DC）场线圈，其中所述一组DC场线圈被配置为产生相对于由所述DC场线发射的激光的光轴以45度定向的DC磁场 激光并指向蒸气室; 所述一组DC场线圈还被配置为具有可调节的DC磁场强度。

    ATOM INTERFEROMETER WITH ADAPTIVE LAUNCH DIRECTION AND/OR POSITION
    7.
    发明申请
    ATOM INTERFEROMETER WITH ADAPTIVE LAUNCH DIRECTION AND/OR POSITION 有权
    具有自适应发射方向和/或位置的ATOM干涉仪

    公开(公告)号：US20170032863A1

    公开(公告)日：2017-02-02

    申请号：US15294510

    申请日：2016-10-14

    Applicant: Honeywell International Inc.

    Inventor： Robert Compton ,  Kenneth Salit

    IPC: G21K1/00 ,  G01C19/58 ,  G01P15/02

    CPC classification number: G21K1/006 ,  G01C19/58 ,  G01P15/02 ,  G01P15/08 ,  G01V7/00 ,  H05H3/02

    Abstract: Embodiments described herein provide for a method of launching atoms in an atom interferometer. The method includes determining a direction of the total effective acceleration force on the atoms, controlling a direction of launch of the atoms for measurement in the atom interferometer based on the direction of the total effective acceleration force, and obtaining measurements from the atoms.

    Abstract translation: 本文描述的实施例提供了在原子干涉仪中发射原子的方法。 该方法包括确定原子上总有效加速力的方向，基于总有效加速力的方向控制原子干涉仪中用于测量的原子的发射方向，并从原子获得测量值。

    Atomic referenced optical accelerometer
    8.
    发明授权
    Atomic referenced optical accelerometer 有权
    原子参考光学加速度计

    公开(公告)号：US09417261B2

    公开(公告)日：2016-08-16

    申请号：US14162697

    申请日：2014-01-23

    Applicant: Honeywell International Inc.

    Inventor： Kenneth Salit ,  Mary Salit ,  Robert Compton ,  Jeff A. Ridley ,  Karl Nelson

    IPC: G01P15/093 ,  B81B7/02 ,  G01P15/12 ,  G01P1/00 ,  G01P15/13

    CPC classification number: G01P15/093 ,  B81B7/02 ,  G01P1/006 ,  G01P15/08 ,  G01P15/12 ,  G01P15/131

    Abstract: In some examples, a micro-electro-mechanical system (MEMS) optical accelerometer includes a housing comprising an internal chamber that includes a Fabry-Perot cavity and a proof mass affixed to the housing via one or more elastic elements, a light source configured to emit radiation, a first detector configured to receive radiation transmitted through the Fabry-Perot cavity and configured to generate one or more signals that indicate a position of the proof mass. The MEMS optical accelerometer further comprises an atomic wavelength reference and a second detector configured to detect radiation transmitted through the atomic wavelength reference and configured to generate one or more signals that indicate a wavelength of the radiation emitted by the light source, and a servomechanism electrically coupled to the second photo detector and the light source, configured to adjust the light source to maintain the radiation emitted by the light source at approximately a selected wavelength.

    Abstract translation: 在一些示例中，微电子机械系统（MEMS）光学加速度计包括壳体，该壳体包括内部腔室，该内部腔室包括法布里 - 珀罗空腔和经由一个或多个弹性元件固定到壳体的校验物质， 发射辐射，第一检测器被配置为接收透射通过法布里 - 珀罗腔的辐射并被配置为产生指示证明质量位置的一个或多个信号。 MEMS光学加速度计还包括原子波长参考和第二检测器，其被配置为检测透射原子波长参考的辐射并被配置为产生指示由光源发射的辐射的波长的一个或多个信号，以及电耦合的伺服机构 所述第二光检测器和所述光源被配置为调节所述光源以将由所述光源发射的辐射保持在大致选定的波长。

    MRI AND MEG DETECTION WITH A SINGLE OPTICALLY PUMPED MAGNETOMETER
    9.
    发明公开
    MRI AND MEG DETECTION WITH A SINGLE OPTICALLY PUMPED MAGNETOMETER 审中-公开

    公开(公告)号：US20240255593A1

    公开(公告)日：2024-08-01

    申请号：US18508084

    申请日：2023-11-13

    Applicant: Honeywell International Inc.

    Inventor： Mary Salit ,  Argyrios Dellis ,  Kenneth Salit

    IPC: G01R33/26 ,  G01R33/32

    CPC classification number: G01R33/26 ,  G01R33/323

    Abstract: Systems for MRI and MEG detection with a single optically pumped magnetometer are provided herein. In one example, a system comprises a chip-scale device including a RF atomic magnetometer, which includes a laser configured to emit laser light, a photodetector, a vapor cell between the laser and photodetector, and a circular polarizer configured to circularly polarize the laser light emitted by the laser. A circularly polarized laser beam is configured to pump into an oriented state, spins of atoms in the vapor cell and to probe the atoms in the vapor cell, wherein probing includes detecting a local RF field. The chip-scale device further includes flux transformer coil(s) configured to couple RF signals from a source to the RF atomic magnetometer and DC coil(s) configured to generate a DC magnetic field oriented at 45 degrees relative to an optical axis of the laser light emitted by the laser.

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