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61. 发明授权

US10451690B2 Customized magnetic susceptibility materials 有权
公开(公告)号：US10451690B2
公开(公告)日：2019-10-22
申请号：US15714669
申请日：2017-09-25
申请人： Michael D. Bulatowicz
发明人： Michael D. Bulatowicz
IPC分类号： G01R33/34 , G01R33/565 , B05D7/00 , B32B15/00 , B32B15/01 , B32B18/00 , C04B37/00 , C04B37/02 , G01C19/00 , G01C19/60 , G01R33/00 , G01R33/42
摘要： 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.

62. 发明授权

US10416245B2 Optical pump beam control in a sensor system 有权
公开(公告)号：US10416245B2
公开(公告)日：2019-09-17
申请号：US15080876
申请日：2016-03-25
申请人： Michael D. Bulatowicz
发明人： Michael D. Bulatowicz
IPC分类号： G01R33/26 , G01R33/032 , G01C19/62 , G01R33/00 , G01N24/00
摘要： 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.

63. 发明授权

US10330696B2 Accelerometer sensor system 有权
公开(公告)号：US10330696B2
公开(公告)日：2019-06-25
申请号：US15079207
申请日：2016-03-24
申请人： Michael D. Bulatowicz , Robert C. Griffith , Henry C. Abbink , Daryl K. Sakaida , Philip R. Clark
发明人： Michael D. Bulatowicz , Robert C. Griffith , Henry C. Abbink , Daryl K. Sakaida , Philip R. Clark
IPC分类号： G01P15/08 , G01P15/13 , G01P15/125
摘要： 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.

64. 发明申请

US20180372813A1 PULSED-BEAM ATOMIC MAGNETOMETER SYSTEM 审中-公开
公开(公告)号：US20180372813A1
公开(公告)日：2018-12-27
申请号：US16053535
申请日：2018-08-02
申请人： MICHAEL D. BULATOWICZ , THAD G. WALKER , MICHAEL S. LARSEN
发明人： MICHAEL D. BULATOWICZ , THAD G. WALKER , MICHAEL S. LARSEN
IPC分类号： G01R33/26 , G01R33/032 , G01R33/00
CPC分类号： G01R33/26 , G01R33/0041 , G01R33/0322
摘要： One example includes a magnetometer system that includes a sensor cell comprising alkali metal vapor and at least one measurement zone corresponding to a three-dimensional spatial region within the sensor cell. The system also includes 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.

65. 发明授权

US09829544B2 Magnetic field trimming in an atomic sensor system 有权
公开(公告)号：US09829544B2
公开(公告)日：2017-11-28
申请号：US14269547
申请日：2014-05-05
申请人： Michael D. Bulatowicz
发明人： Michael D. Bulatowicz
IPC分类号： G01V3/00 , G01R33/032 , G01R33/26 , G01R33/3875
CPC分类号： G01R33/032 , G01C19/62 , G01R33/26 , G01R33/3875
摘要： 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.

66. 发明授权

US09726494B2 Atomic sensor system 有权
公开(公告)号：US09726494B2
公开(公告)日：2017-08-08
申请号：US14278940
申请日：2014-05-15
申请人： Michael D. Bulatowicz , Michael S. Larsen
发明人： Michael D. Bulatowicz , Michael S. Larsen
IPC分类号： G01C19/62 , G01R33/26
CPC分类号： G01C19/62 , G01R33/26
摘要： 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.

67. 发明授权

US09612256B2 Range-dependent bias calibration of an accelerometer sensor system 有权
公开(公告)号：US09612256B2
公开(公告)日：2017-04-04
申请号：US13951000
申请日：2013-07-25
申请人： Michael D. Bulatowicz
发明人： Michael D. Bulatowicz
IPC分类号： G01P21/00 , G01P15/125 , G01P15/13 , G01P15/08
CPC分类号： G01P21/00 , G01P15/125 , G01P15/131 , G01P2015/0828
摘要： One embodiment of the invention includes an accelerometer sensor system. The system includes a sensor comprising a proofmass and electrodes and being configured to generate acceleration feedback signals based on control signals applied to the electrodes in response to an input acceleration. The system also includes an acceleration component configured to measure the input acceleration based on the acceleration feedback signals. The system further includes an acceleration controller configured to generate the control signals to define a first scale-factor range associated with the sensor and to define a second scale-factor range associated with the sensor. The control system includes a calibration component configured to calibrate the accelerometer sensor system with respect to range-dependent bias error based on a difference between the measured input acceleration at each of the first scale-factor range and the second scale-factor range.

68. 发明授权

US09612255B2 Range-dependent bias calibration of an accelerometer sensor system 有权
公开(公告)号：US09612255B2
公开(公告)日：2017-04-04
申请号：US13771792
申请日：2013-02-20
申请人： Michael D. Bulatowicz
发明人： Michael D. Bulatowicz
IPC分类号： G01P21/00 , G06F17/10 , G01P15/125 , G01P15/13 , G01P15/08
CPC分类号： G01P21/00 , G01P15/125 , G01P15/131 , G01P2015/0828 , G06F17/10
摘要： One embodiment of the invention includes an accelerometer sensor system. The system includes a sensor comprising a proofmass and electrodes and being configured to generate acceleration feedback signals based on control signals applied to the electrodes in response to an input acceleration. The system also includes an acceleration component configured to measure the input acceleration based on the acceleration feedback signals. The system further includes an acceleration controller configured to generate the control signals to define a first scale-factor range associated with the sensor and to define a second scale-factor range associated with the sensor. The control system includes a calibration component configured to calibrate the accelerometer sensor system with respect to range-dependent bias error based on a difference between the measured input acceleration at each of the first scale-factor range and the second scale-factor range.

69. 发明授权

US09229073B2 Systems and method to substantially mitigate AC stark shift effects in a sensor system 有权
标题翻译：基本上减轻传感器系统中的交流变换效应的系统和方法
公开(公告)号：US09229073B2
公开(公告)日：2016-01-05
申请号：US13727926
申请日：2012-12-27
申请人： Thad G. Walker , Michael D. Bulatowicz , Michael S. Larsen , Robert C. Griffith , Philip R. Clark
发明人： Thad G. Walker , Michael D. Bulatowicz , Michael S. Larsen , Robert C. Griffith , Philip R. Clark
IPC分类号： G01R33/26 , G01C19/62
CPC分类号： G01R33/26 , G01C19/62
摘要： One embodiment includes a sensor system. The system includes a cell system comprising a pump laser configured to generate a pump beam to polarize alkali metal particles enclosed within a sensor cell. The system also includes a detection system comprising a probe laser configured to generate a probe beam. The detection system can also be configured to 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 particles in response to an applied magnetic field. The system further includes an AC Stark shift control system configured to frequency-modulate the pump beam and to control a center frequency of a frequency-modulated pump beam based on the characteristics of the probe beam passing through the sensor cell to substantially stabilize and mitigate the effects of AC Stark shift on the at least one measurable parameter.
摘要翻译：一个实施例包括传感器系统。该系统包括一个电池系统，该电池系统包括被配置成产生泵浦光束以使包围在传感器电池内的碱金属颗粒极化的泵浦激光器。该系统还包括检测系统，其包括被配置为产生探测光束的探测激光器。检测系统还可以被配置为基于由施加的磁场响应于偏振的碱金属颗粒的进动而导致通过传感器单元的探针束的特性来计算至少一个可测量的参数。该系统还包括AC Stark变速控制系统，其配置成对泵浦波束进行频率调制，并且基于通过传感器单元的探测光束的特性来控制调频泵浦光束的中心频率，以基本上稳定和减轻 AC Stark移位对至少一个可测量参数的影响。

70. 发明申请

US20150241217A1 NUCLEAR MAGNETIC RESONANCE GYROSCOPE SYSTEM 有权
标题翻译：核磁共振GYROSCOPE系统
公开(公告)号：US20150241217A1
公开(公告)日：2015-08-27
申请号：US14188405
申请日：2014-02-24
申请人： MICHAEL D. BULATOWICZ , MICHAEL S. LARSEN
发明人： MICHAEL D. BULATOWICZ , MICHAEL S. LARSEN
IPC分类号： G01C19/60
CPC分类号： G01C19/60 , G01C19/62
摘要： One embodiment includes a nuclear magnetic resonance (NMR) gyroscope system. The system includes a vapor cell that encloses an alkali metal and a gyromagnetic isotope. The system also includes a magnetic field source that generates a magnetic field aligned with a sensitive axis of the NMR gyroscope system and which is provided through the vapor cell to cause the alkali metal and the gyromagnetic isotope to precess. The system also includes a laser that generates an optical beam that polarizes the alkali metal in the vapor cell to facilitate the precession of the alkali metal and the gyromagnetic isotope. The system further includes an angular rotation sensor configured to calculate a rotation angle about the sensitive axis based on a measured characteristic of a detection beam corresponding to the optical beam exiting the vapor cell, the characteristic being associated with the precession of the gyromagnetic isotope.
摘要翻译：一个实施例包括核磁共振（NMR）陀螺仪系统。该系统包括包围碱金属和回旋磁同位素的蒸汽池。该系统还包括产生与NMR陀螺仪系统的灵敏轴对准的磁场的磁场源，并且通过蒸气池提供磁场，以使碱金属和回旋磁同位素进入。该系统还包括产生使蒸气室中的碱金属极化的光束的激光器，以促进碱金属和旋磁同位素的进动。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与离开蒸气室的光束相对应的检测光束的测量特性来计算关于感测轴的旋转角度，该特性与陀螺磁同位素的进动相关联。

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