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公开(公告)号：US20180066942A1
公开(公告)日：2018-03-08
申请号：US15418990
申请日：2017-01-30
发明人： Robert Compton
IPC分类号： G01C19/64
摘要： A fully reciprocal atomic interferometric gyroscope is provided. The fully reciprocal atomic interferometric gyroscope includes an atomic chamber, a plurality of lasers, a controller and measurement sensor. The atomic chamber is used to hold an atom cloud. The plurality of lasers are selectively positioned to selectively direct laser beams into the atomic chamber. The controller is configured to control the plurality lasers to initially cool the atom cloud to a point where at least one optical lattice can be formed that is used to move wave function halves of atoms of the atom cloud along split wave function paths that form an interferometer cycle. The measurement sensor is configured to conduct a phase readout of a wave function upon the completion of at least one interferometer cycle around the split wave function paths.
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公开(公告)号：US09491802B2
公开(公告)日：2016-11-08
申请号：US13764187
申请日：2013-02-11
摘要： Embodiments described herein provide for an on-chip alkali dispenser. The on-chip alkali dispenser includes a monolithic semiconductor substrate defining a trench therein, and an evaporable metal material disposed in the trench. A heating element is disposed proximate the evaporable metal material and configured to provide heat to the evaporable metal material. A getter material is disposed to sorb unwanted materials released from the evaporable metal material.
摘要翻译： 本文所述的实施例提供片上碱分配器。 片上碱分配器包括在其中限定沟槽的单片半导体衬底和设置在沟槽中的可蒸发金属材料。 加热元件设置在可蒸发金属材料附近并且被配置为向可蒸发的金属材料提供热量。 设置吸气剂材料以吸收从可蒸发金属材料释放的不需要的材料。
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公开(公告)号：US09312869B2
公开(公告)日：2016-04-12
申请号：US14059698
申请日：2013-10-22
摘要： Systems and methods for a wafer scale atomic clock are provided. In at least one embodiment, a wafer scale device comprises a first substrate; a cell layer joined to the first substrate, the cell layer comprising a plurality of hermetically isolated cells, wherein separate measurements are produced for each cell in the plurality of hermetically isolated cells; and a second substrate joined to the cell layer, wherein the first substrate and the second substrate comprise electronics to control the separate measurements, wherein the separate measurements are combined into a single measurement.
摘要翻译： 提供了用于晶片级原子钟的系统和方法。 在至少一个实施例中，晶片秤装置包括第一基板; 连接到所述第一基底的细胞层，所述细胞层包含多个密封分离的细胞，其中对所述多个密闭分离的细胞中的每个细胞产生单独的测量; 以及连接到所述电池层的第二衬底，其中所述第一衬底和所述第二衬底包括用于控制所述单独测量的电子器件，其中所述单独测量被组合成单个测量。
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公开(公告)号：US20150109061A1
公开(公告)日：2015-04-23
申请号：US14059698
申请日：2013-10-22
IPC分类号： H03L7/26
摘要： Systems and methods for a wafer scale atomic clock are provided. In at least one embodiment, a wafer scale device comprises a first substrate; a cell layer joined to the first substrate, the cell layer comprising a plurality of hermetically isolated cells, wherein separate measurements are produced for each cell in the plurality of hermetically isolated cells; and a second substrate joined to the cell layer, wherein the first substrate and the second substrate comprise electronics to control the separate measurements, wherein the separate measurements are combined into a single measurement.
摘要翻译： 提供了用于晶片级原子钟的系统和方法。 在至少一个实施例中，晶片秤装置包括第一基板; 连接到所述第一基底的细胞层，所述细胞层包含多个密封分离的细胞，其中对所述多个密闭分离的细胞中的每个细胞产生单独的测量; 以及连接到所述电池层的第二衬底，其中所述第一衬底和所述第二衬底包括用于控制所述单独测量的电子器件，其中所述单独测量被组合成单个测量。
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5.发明申请公开(公告)号：US20130213135A1
公开(公告)日：2013-08-22
申请号：US13758309
申请日：2013-02-04
发明人： Robert Compton , Kenneth Salit
IPC分类号： G01P15/02
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20240085182A1
公开(公告)日：2024-03-14
申请号：US17941846
申请日：2022-09-09
IPC分类号： G01C21/08 , G01C21/00 , G01C21/16 , G01R33/028
CPC分类号： G01C21/08 , G01C21/1654 , G01C21/3896 , G01R33/028
摘要： A system and method for magnetic navigation are provided. The system comprises a navigation system for a vehicle, at least one processor operatively coupled with the navigation system, and a magnetic navigation module operatively coupled with the processor. The magnetic navigation module including instructions, executable by the processor, to perform a method comprising selecting latitude, longitude, and altitude ranges for the vehicle that is expected to travel in a region of interest; obtaining one or more magnetic anomaly maps for the region of interest; choosing a base Earth-centered, Earth-fixed (ECEF) plane and coordinates for the one or more magnetic anomaly maps; constructing an integration mesh on the base ECEF plane; and performing a Strakhov iteration process on the integration mesh to compute values of magnetic anomalies on a base source. The method then computes an estimated magnetic anomaly at a given point in space using alternative computation approaches.
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公开(公告)号：US20220276293A1
公开(公告)日：2022-09-01
申请号：US17350901
申请日：2021-06-17
IPC分类号： G01R29/08
摘要： A sensor system comprises a laser source that emits a pump beam at a first wavelength and a probe beam at a second wavelength, and an optical means for receiving the pump and probe beams. The optical means is operative to generate a plurality of light beams, each having a different frequency, from the pump and probe beams. One or more cells receive the light beams from the optical means and allow passage of the light beams therethrough, with the cells containing alkali atoms. A dichroic filter is configured to receive the light beams from the cells. The dichroic filter separates pump beam light and probe beam light from the light beams. A detector array receives the probe beam light from the dichroic filter. The detector array includes a two-dimensional array of photosensors that map out transmission of respective light beams corresponding to the probe beam light through the cells.
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公开(公告)号：US11187530B2
公开(公告)日：2021-11-30
申请号：US16595320
申请日：2019-10-07
摘要： In an example, an optical gimbal is described, the optical gimbal comprising: a pulse generator configured to generate at least two coherent beam splitting pulses; a first optical beam director configured to tilt the vector of the beam splitting pulses by an angle θ; an atom source configured to allow the beam splitting pulses to manipulate trapped atoms within the atom source; a processor configured to receive the angle θ, and control the pulse generator and the beam director; a detector coupled to the atom source configured to measure a final population of the atoms in different states.
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公开(公告)号：US10401439B2
公开(公告)日：2019-09-03
申请号：US15453061
申请日：2017-03-08
发明人： Marc Smiciklas , Robert Compton , Mary K. Salit
IPC分类号： G01R33/032 , G01R33/035
摘要： In one embodiment, a method is provided. The method comprises: spin polarizing alkali atoms in a cavity; shifting resonant frequencies of the cavity at a rate proportional to a magnitude of a magnetic field incident upon the cavity; reflecting modulated right hand circularly polarized light and modulated left hand circularly polarized light from the cavity; transforming the reflected modulated right hand circularly polarized light to reflected modulated vertically polarized light, and the reflected modulated left hand circularly polarized light to reflected modulated horizontally polarized modulated light; generating a first error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated vertically polarized light and a sign indicative of whether a frequency of the reflected modulated vertically polarized light is above or below the corresponding resonant frequency; generating a second error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated horizontally polarized light and a sign indicative of whether a frequency of the reflected modulated horizontally polarized light is above or below the corresponding resonant frequency; adjusting a carrier frequency of the modulated right hand circularly polarized light in response to the first error signal; adjusting a carrier frequency of the modulated left hand circularly polarized light in response to the second error signal; and generating a measured Larmor frequency.
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公开(公告)号：US20180246175A1
公开(公告)日：2018-08-30
申请号：US15453061
申请日：2017-03-08
发明人： Marc Smiciklas , Robert Compton , Mary K. Salit
IPC分类号： G01R33/032
CPC分类号： G01R33/032 , G01R33/035
摘要： In one embodiment, a method is provided. The method comprises: spin polarizing alkali atoms in a cavity; shifting resonant frequencies of the cavity at a rate proportional to a magnitude of a magnetic field incident upon the cavity; reflecting modulated right hand circularly polarized light and modulated left hand circularly polarized light from the cavity; transforming the reflected modulated right hand circularly polarized light to reflected modulated vertically polarized light, and the reflected modulated left hand circularly polarized light to reflected modulated horizontally polarized modulated light; generating a first error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated vertically polarized light and a sign indicative of whether a frequency of the reflected modulated vertically polarized light is above or below the corresponding resonant frequency; generating a second error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated horizontally polarized light and a sign indicative of whether a frequency of the reflected modulated horizontally polarized light is above or below the corresponding resonant frequency; adjusting a carrier frequency of the modulated right hand circularly polarized light in response to the first error signal; adjusting a carrier frequency of the modulated left hand circularly polarized light in response to the second error signal; and generating a measured Larmor frequency.
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