公开(公告)号：US08237105B1

公开(公告)日：2012-08-07

申请号：US13020432

申请日：2011-02-03

Applicant: Michael D. Bulatowicz ,  Michael S. Larsen

Inventor： Michael D. Bulatowicz ,  Michael S. Larsen

IPC: H05H3/00 ,  H05H3/02 ,  H01S3/00

CPC classification number: H05H3/02

Abstract: One embodiment of the invention includes a magneto-optical trap (MOT) housing substantially surrounding atoms in an atom trapping region. The housing includes a first end that is substantially open to receive light that is substantially collimated and a second end opposite the first end that includes an aperture that emits a cold atom beam from the atom trapping region. The housing also includes a housing section surrounding and extending along a substantially central axis having a substantially reflective interior peripheral surface that reflects the light to generate an optical force on the atoms. The housing further includes an optical mask located substantially at the first end and along the substantially central axis that is configured to occlude the atom trapping region from the light to substantially prevent direct illumination of the atoms by unreflected light.

Abstract translation: 本发明的一个实施例包括基本围绕原子捕获区域中的原子的磁光阱（MOT）。 壳体包括基本上开放以接收基本准直的光的第一端和与第一端相对的第二端，该第二端包括从原子捕获区域发射冷原子束的孔。 壳体还包括围绕并沿着基本上中心的轴线延伸的壳体部分，该壳体部分具有基本上反射的内周面，其反射光以在原子上产生光学力。 壳体还包括基本上位于第一端并且沿着基本上中心的轴线的光学掩模，该光学掩模被配置为从原子捕获区域遮挡光，以基本上防止原子通过未反射的光的直接照射。

公开(公告)号：US20120182011A1

公开(公告)日：2012-07-19

申请号：US13332536

申请日：2011-12-21

Applicant: MICHAEL S. LARSEN ,  Robert Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

Inventor： MICHAEL S. LARSEN ,  Robert Griffith ,  Michael D. Bulatowicz ,  Philip R. Clark

IPC: G01R33/12

CPC classification number: G01R33/0041 ,  G01C19/62 ,  G01R33/1284 ,  G01R33/26

Abstract: One embodiment of the invention includes an atomic sensing system. The system includes an atomic sensing device configured to generate an output signal along an output axis in response to a plurality of control parameters. The system also includes a signal generator configured to apply a reference signal to a cross-axis that is approximately orthogonal to the output axis. The system also includes a phase measurement system configured to demodulate the output signal relative to the reference signal to measure a relative phase alignment between the output axis and a physical axis of the atomic sensing device based on the reference signal.

Abstract translation: 本发明的一个实施例包括原子感测系统。 该系统包括原子感测装置，其被配置为响应于多个控制参数沿着输出轴产生输出信号。 该系统还包括信号发生器，该信号发生器被配置为将参考信号施加到大致正交于输出轴的交叉轴。 该系统还包括相位测量系统，其被配置为相对于参考信号解调输出信号，以基于参考信号来测量原子感测装置的输出轴和物理轴之间的相对相位对准。

公开(公告)号：US08159220B2

公开(公告)日：2012-04-17

申请号：US12534641

申请日：2009-08-03

Applicant: Michael D. Bulatowicz ,  Michael S. Larsen ,  Robert Griffith

Inventor： Michael D. Bulatowicz ,  Michael S. Larsen ,  Robert Griffith

IPC: G01V3/00

CPC classification number: G01C19/62 ,  G01R33/26

Abstract: One embodiment of the invention includes a nuclear magnetic resonance (NMR) gyroscope system. The system includes a gyro cell that is sealed to enclose an alkali metal vapor, a first gyromagnetic isotope, a second gyromagnetic isotope, and a third gyromagnetic isotope. The system also includes a magnetic field generator configured to generate a substantially uniform magnetic field that is provided through the gyro cell to cause the first, second, and third gyromagnetic isotopes to precess. The system further includes an angular rotation sensor configured to measure a rotation angle about a sensitive axis of the NMR gyroscope system based on measured precession angles of the first, second, and third gyromagnetic isotopes.

Abstract translation: 本发明的一个实施例包括核磁共振（NMR）陀螺仪系统。 该系统包括密封以包围碱金属蒸气，第一回旋磁同位素，第二回旋磁同位素和第三回旋磁同位素的陀螺仪。 该系统还包括磁场发生器，其被配置为产生通过陀螺仪单元提供的基本均匀的磁场，以使第一，第二和第三回旋磁同位素进入。 该系统还包括角度旋转传感器，该角度旋转传感器被配置为基于测量的第一，第二和第三回旋磁同位素的进动角度来测量关于NMR陀螺仪系统的敏感轴的旋转角度。

公开(公告)号：US20100194506A1

公开(公告)日：2010-08-05

申请号：US12364189

申请日：2009-02-02

Applicant: Michael D. Bulatowicz ,  Michael S. Larsen

Inventor： Michael D. Bulatowicz ,  Michael S. Larsen

IPC: H01F7/00 ,  G01C19/00

CPC classification number: H01F7/202 ,  G01C19/60 ,  G01R33/381

Abstract: One embodiment of the invention includes a magnetic solenoid. The magnetic solenoid includes an elongated sidewall that extends between spaced apart ends. The elongated sidewall can surround a central axis that extends longitudinally along the sidewall. The elongated sidewall can have a radius that is defined by a compound equation that varies the radius as a function of position along the central axis.

Abstract translation: 本发明的一个实施例包括一个磁性螺线管。 磁性螺线管包括在间隔开的端部之间延伸的细长侧壁。 细长侧壁可围绕沿着侧壁纵向延伸的中心轴线。 细长的侧壁可以具有由作为沿着中心轴的位置的函数改变半径的复合方程所限定的半径。

公开(公告)号：US10451694B2

公开(公告)日：2019-10-22

申请号：US14188436

申请日：2014-02-24

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

IPC: G01R33/44 ,  G01C19/62 ,  G01R33/032 ,  G01C19/60

Abstract: One example embodiment includes an atomic sensor system. The system includes a vapor cell comprising an alkali metal vapor that precesses in response to a magnetic field. The system also includes a probe laser that generates an optical probe beam that is modulated about a center frequency and which is provided through the vapor cell. A photodetector assembly generates an intensity signal corresponding to a Faraday rotation associated with a detection beam that is associated with the optical probe beam exiting the vapor cell. The system further includes a detection system configured to demodulate the intensity signal at a frequency corresponding to a modulation frequency of the optical probe beam and to generate a feedback signal based on the demodulated intensity signal. The feedback signal is provided to the probe laser to substantially stabilize the center frequency of the optical probe beam based on the feedback signal.

公开(公告)号：US10451690B2

公开(公告)日：2019-10-22

申请号：US15714669

申请日：2017-09-25

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

IPC: G01R33/34 ,  G01R33/565 ,  B05D7/00 ,  B32B15/00 ,  B32B15/01 ,  B32B18/00 ,  C04B37/00 ,  C04B37/02 ,  G01C19/00 ,  G01C19/60 ,  G01R33/00 ,  G01R33/42

Abstract: One example includes a method for fabricating a compound material. The method includes providing a first discrete material layer having a first thickness dimension. The first discrete material layer includes a first material having a first magnetic susceptibility. The method also includes depositing a second discrete material layer having a second thickness dimension over the first discrete material layer. The second discrete material layer can include a second material having a second magnetic susceptibility. The relative first and second thickness dimensions can be selected to provide a desired magnetic susceptibility of the compound material.

公开(公告)号：US10416245B2

公开(公告)日：2019-09-17

申请号：US15080876

申请日：2016-03-25

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

IPC: G01R33/26 ,  G01R33/032 ,  G01C19/62 ,  G01R33/00 ,  G01N24/00

Abstract: One example includes a sensor system. A cell system includes a pump laser which generates a pump beam to polarize alkali metal vapor enclosed within a sensor cell. A detection system includes a probe laser to generate a probe beam. The detection system can calculate at least one measurable parameter based on characteristics of the probe beam passing through the sensor cell resulting from precession of the polarized alkali metal vapor in response to an applied magnetic field. A pump beam control system pulse-width modulates a frequency of the pump beam to provide a pulse-width modulated (PWM) pump beam, and controls a duty-cycle of the PWM pump beam based on the characteristics of the probe beam passing through the sensor cell in a feedback manner to control polarization uniformity of the alkali metal vapor and to mitigate the effects of AC Stark shift on the at least one measurable parameter.

公开(公告)号：US10330696B2

公开(公告)日：2019-06-25

申请号：US15079207

申请日：2016-03-24

Applicant: Michael D. Bulatowicz ,  Robert C. Griffith ,  Henry C. Abbink ,  Daryl K. Sakaida ,  Philip R. Clark

Inventor： Michael D. Bulatowicz ,  Robert C. Griffith ,  Henry C. Abbink ,  Daryl K. Sakaida ,  Philip R. Clark

IPC: G01P15/08 ,  G01P15/13 ,  G01P15/125

Abstract: Embodiments of the invention include an accelerometer system. The system includes an accelerometer sensor comprising first and second electrode configurations and an inertial mass between the first and second electrode configurations. In one example, the accelerometer sensor being fabricated as symmetrically arranged about each of three orthogonal mid-planes. The system also includes an accelerometer controller configured to apply control signals to each of the first and second electrode configurations to provide respective forces to maintain the inertial mass at a null position between the first and second electrode configurations. The accelerometer controller can measure a first pickoff signal and a second pickoff signal associated with the respective first and second electrode configurations. The first and second pickoff signals can be indicative of a displacement of the inertial mass relative to the null position. The accelerometer controller can calculate an acceleration based on the first and second pickoff signals.

公开(公告)号：US09829544B2

公开(公告)日：2017-11-28

申请号：US14269547

申请日：2014-05-05

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

IPC: G01V3/00 ,  G01R33/032 ,  G01R33/26 ,  G01R33/3875

CPC classification number: G01R33/032 ,  G01C19/62 ,  G01R33/26 ,  G01R33/3875

Abstract: One example embodiment includes an atomic sensor system. The system includes a magnetic field generator configured to generate a magnetic field in a volume. The system also includes a vapor cell arranged within the volume and comprising a polarized alkali metal vapor. The system further includes at least one magnetic field trimming system configured to generate a magnetic field gradient within the vapor cell separate from the magnetic field to provide a substantially uniform collective magnetic field within the vapor cell.

公开(公告)号：US09726494B2

公开(公告)日：2017-08-08

申请号：US14278940

申请日：2014-05-15

Applicant: Michael D. Bulatowicz ,  Michael S. Larsen

Inventor： Michael D. Bulatowicz ,  Michael S. Larsen

IPC: G01C19/62 ,  G01R33/26

CPC classification number: G01C19/62 ,  G01R33/26

Abstract: One embodiment includes an atomic sensor system. The system includes a vapor cell that is sealed to enclose an alkali metal that is spin-polarized by an optical beam. The vapor cell includes a mirror at a distal end. The system also includes an optical system including a photodetector system and a laser that generates the optical beam. The optical beam is provided into a proximal end of the vapor cell and is reflected back to the photodetector system via the mirror as a reflected optical beam to generate at least one intensity signal. The optical system further includes a control system that modulates a wavelength of the optical beam between an on-resonance wavelength and an off-resonance wavelength with respect to the alkali metal. The system also includes a processor that calculates a measurable parameter associated with the atomic sensor system based on the at least one intensity signal.