公开(公告)号：US08487729B2

公开(公告)日：2013-07-16

申请号：US13165023

申请日：2011-06-21

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

IPC: H01F5/00

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

Abstract: One embodiment of the invention includes a magnetic solenoid. The magnetic solenoid includes an elongated sidewall that extends along and surrounds a central axis between spaced apart ends. The central axis can include a center point that is approximately equidistant from the spaced apart ends. The magnetic solenoid also includes a conductive coil that extends along and conforms to the elongated sidewall and comprises a plurality of consecutive loops centered on the central axis. The plurality of consecutive loops can have a consecutive loop-spacing that is non-uniform along the central axis and having a substantial maximum spacing value at approximately the center point.

Abstract translation: 本发明的一个实施例包括一个磁性螺线管。 磁性螺线管包括细长侧壁，该侧壁沿间隔开的端部延伸并围绕中心轴线。 中心轴线可以包括与间隔开的端部大致等距的中心点。 磁螺线管还包括沿着细长侧壁延伸并且符合细长侧壁的导电线圈，并且包括以中心轴为中心的多个连续环。 多个连续的环可以具有沿着中心轴不均匀并且在大约中心点处具有相当大的最大间隔值的连续环间隔。

公开(公告)号：US20120191396A1

公开(公告)日：2012-07-26

申请号：US13011530

申请日：2011-01-21

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

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

IPC: G06F19/00

CPC classification number: G01C19/62

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, and a second gyromagnetic isotope. A magnetic field generator configured to generate a magnetic field that is provided through the gyro cell to cause the first and the second gyromagnetic isotopes to precess. A magnetic field error controller configured to measure an error associated with a magnitude of the magnetic field and to generate an error signal that is fed back to the magnetic field generator to maintain the magnetic field at a desired magnitude. The system further includes a mechanization processor configured to calculate a rotation angle about a sensitive axis of the NMR gyroscope system based on a measured precession angle of at least one of the first and second gyromagnetic isotopes and the error signal.

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的陀螺仪单元，第一回旋磁同位素和第二回旋磁同位素。 磁场发生器被配置为产生通过陀螺仪单元提供的磁场，以使第一和第二回旋磁同位素进入。 磁场误差控制器被配置为测量与磁场的大小相关联的误差，并且产生反馈到磁场发生器以将磁场维持在期望的大小的误差信号。 该系统还包括机械化处理器，其被配置为基于所测量的第一和第二回旋磁同位素和误差信号中的至少一个的进动角来计算关于NMR陀螺仪系统的敏感轴的旋转角度。

公开(公告)号：US20110025330A1

公开(公告)日：2011-02-03

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: G01R33/44

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：US11294005B2

公开(公告)日：2022-04-05

申请号：US16928609

申请日：2020-07-14

Applicant: Thad G. Walker ,  Michael D. Bulatowicz

Inventor： Thad G. Walker ,  Michael D. Bulatowicz

IPC: G01R33/26

Abstract: One example includes a magnetometer that includes a sensor cell comprising alkali metal vapor and a magnetic field generator system that generates predetermined AC magnetic fields through the sensor cell. The magnetometer also includes a laser system to provide optical pump and probe beams through the sensor cell in a pulsed manner to facilitate precession of the alkali metal vapor and to provide a detection beam corresponding to the optical probe beam exiting the sensor cell. The detection beam exhibits an optical property corresponding to a modified precession of the alkali metal vapor based on the predetermined AC magnetic fields and an external magnetic field. The magnetometer also includes a detection system to monitor the detection beam to detect the modified precession of the alkali metal vapor to calculate scalar and vector components of the external magnetic field based on the plurality of predetermined AC magnetic fields.

公开(公告)号：US20210215779A1

公开(公告)日：2021-07-15

申请号：US16741302

申请日：2020-01-13

Applicant: MICHAEL D. BULATOWICZ

Inventor： MICHAEL D. BULATOWICZ

IPC: G01R33/38 ,  H05B3/03 ,  H05B3/06 ,  G01R33/26

Abstract: One embodiment includes a heater system. The system includes a current source configured to generate an input current and to receive a return current. The system also includes a heater configured to generate heat in response to the input current. The system further includes a plurality of current lead wires interconnecting the current source and the heater and being configured to provide the input current to the heater and to conduct the return current from the heater. Each of the plurality of current lead wires is arranged on a separate substrate layer such that each of the plurality of current lead wires are each spaced apart from each other. At least one of the input current and the return current is divided to be conducted on two or more of the plurality of current lead wires.

公开(公告)号：US20180348313A1

公开(公告)日：2018-12-06

申请号：US15990974

申请日：2018-05-29

Applicant: MICHAEL D. BULATOWICZ ,  THAD G. WALKER ,  MICHAEL S. LARSEN

Inventor： MICHAEL D. BULATOWICZ ,  THAD G. WALKER ,  MICHAEL S. LARSEN

IPC: G01R33/26

Abstract: One example includes a magnetometer system. The system includes a sensor cell comprising alkali metal vapor and a laser system configured to provide an optical pump beam through the sensor cell in a pulsed manner to facilitate precession of the alkali metal vapor in response to an external magnetic field and to provide an optical probe beam through the sensor cell in a pulsed manner based on a precession frequency of the alkali metal vapor. The system also includes a detection system configured to detect the precession of the alkali metal vapor in response to a detection beam corresponding to the optical probe beam exiting the sensor cell and to calculate an amplitude and direction of the external magnetic field based on the detected precession of the alkali metal vapor.

公开(公告)号：US09857179B2

公开(公告)日：2018-01-02

申请号：US14586207

申请日：2014-12-30

Applicant: Michael S. Larsen ,  Michael D. Bulatowicz ,  A. Douglas Meyer ,  Dennis P. Bevan

Inventor： Michael S. Larsen ,  Michael D. Bulatowicz ,  A. Douglas Meyer ,  Dennis P. Bevan

IPC: G01D7/00 ,  G01C21/18 ,  G01P15/105 ,  G01P15/14 ,  G01C21/20 ,  G01C21/08 ,  G01C21/16

CPC classification number: G01C21/18 ,  G01C21/08 ,  G01C21/165 ,  G01C21/20 ,  G01P15/105 ,  G01P15/14

Abstract: One example includes an inertial navigation system (INS). The INS includes a navigation controller configured to generate inertial data associated with motion of a vehicle based on at least one navigation sensor configured on the vehicle and based on magnetic anomaly data. The INS also includes a magnetic anomaly INS-aiding system comprising a plurality of magnetometers distributed in a respective plurality of locations on the vehicle. The magnetic anomaly INS-aiding system can be configured to generate the magnetic anomaly data based on magnetic field measurements of a fixed magnetic anomaly at each of the plurality of magnetometers.

公开(公告)号：US09810751B2

公开(公告)日：2017-11-07

申请号：US14188374

申请日：2014-02-24

Applicant: Michael D. Bulatowicz

Inventor： Michael D. Bulatowicz

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

CPC classification number: G01R33/34 ,  B05D7/52 ,  B32B15/00 ,  B32B15/01 ,  B32B18/00 ,  C04B37/001 ,  C04B37/021 ,  C04B2237/34 ,  C04B2237/348 ,  C04B2237/36 ,  C04B2237/408 ,  G01C19/00 ,  G01C19/60 ,  G01R33/00 ,  G01R33/42 ,  G01R33/56536 ,  Y10T428/23

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：US09778328B2

公开(公告)日：2017-10-03

申请号：US14291595

申请日：2014-05-30

Applicant: Michael D. Bulatowicz ,  Michael S. Larsen

Inventor： Michael D. Bulatowicz ,  Michael S. Larsen

IPC: G01R33/26 ,  G01C19/62

CPC classification number: G01R33/26 ,  G01C19/62

Abstract: One example embodiment includes an atomic sensor system. A probe laser generates a probe beam. A first portion of the probe beam is provided through a sensor cell comprising a first alkali vapor to calculate a measurable parameter of the system based on a first detection beam corresponding to the first portion of the probe beam exiting the sensor cell. A second portion of the probe beam can be provided through a stabilization cell that comprises a second vapor. A detection system can be configured to stabilize the frequency of the probe beam in a manner that is on-resonance with respect to an optical transition wavelength of the second alkali vapor and off-resonance with respect to an optical transition wavelength of the first alkali vapor based on a second detection beam corresponding to the second portion of the probe beam exiting the stabilization cell.

公开(公告)号：US20170269122A1

公开(公告)日：2017-09-21

申请号：US15615438

申请日：2017-06-06

Applicant: ROBERT E. STEWART ,  MICHAEL D. BULATOWICZ

Inventor： ROBERT E. STEWART ,  MICHAEL D. BULATOWICZ

IPC: G01P21/00 ,  G01P15/125 ,  G01P15/13 ,  G01P15/08

CPC classification number: G01P21/00 ,  G01P15/125 ,  G01P15/131 ,  G01P2015/0828 ,  G01P2015/0831 ,  G01P2015/084

Abstract: One embodiment includes a method for dynamic self-calibration of an accelerometer system. The method includes forcing a proof-mass associated with a sensor of the accelerometer system in a first direction to a first predetermined position and obtaining a first measurement associated with the sensor in the first predetermined position via at least one force/detection element of the sensor. The method also includes forcing the proof-mass to a second predetermined position and obtaining a second measurement associated with the sensor in the second predetermined position via the at least one force/detection element of the sensor. The method further includes calibrating the accelerometer system based on the first and second measurements.