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21. 发明申请

US20190049485A1 DYNAMIC SELF-CALIBRATION OF AN ACCELEROMETER SYSTEM 审中-公开
公开(公告)号：US20190049485A1
公开(公告)日：2019-02-14
申请号：US16155529
申请日：2018-10-09
申请人： ROBERT E. STEWART , MICHAEL D. BULATOWICZ
发明人： ROBERT E. STEWART , MICHAEL D. BULATOWICZ
IPC分类号： G01P21/00 , G01P15/13 , G01P15/125 , G01P15/08
摘要： 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.

22. 发明申请

US20170276698A1 ACCELEROMETER SENSOR SYSTEM 审中-公开
公开(公告)号：US20170276698A1
公开(公告)日：2017-09-28
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： G01P15/13
CPC分类号： G01P15/131 , G01P15/0802 , G01P15/125 , G01P2015/0837
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.

23. 发明申请

US20150316625A1 MAGNETIC FIELD TRIMMING IN AN ATOMIC SENSOR SYSTEM 有权
标题翻译：原子传感器系统中的磁场修复
公开(公告)号：US20150316625A1
公开(公告)日：2015-11-05
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： G01R33/26 , G01R33/032
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.
摘要翻译：一个示例性实施例包括原子传感器系统。该系统包括被配置为在体积中产生磁场的磁场发生器。该系统还包括布置在体积内并包含极化的碱金属蒸气的蒸汽单元。该系统还包括至少一个磁场修整系统，其被配置为在蒸气室内产生与磁场分离的磁场梯度，以在蒸气室内提供基本均匀的集体磁场。

24. 发明申请

US20150160257A1 OPTICAL ACCELEROMETER SYSTEMS AND METHOD 有权
标题翻译：光学加速度计系统和方法
公开(公告)号：US20150160257A1
公开(公告)日：2015-06-11
申请号：US14103595
申请日：2013-12-11
申请人： MICHAEL D. BULATOWICZ
发明人： MICHAEL D. BULATOWICZ
IPC分类号： G01P15/093
CPC分类号： G01P15/093 , G01P15/13
摘要： An example optical accelerometer system is provided. An optical beam is provided having a predefined center frequency and is frequency-modulated about the predefined center frequency. An optical cavity includes a first mirror at a first end and a second mirror at a second end of the optical cavity. The second mirror is movable along the axial length of the optical cavity in response to an external acceleration, and the optical cavity receives the optical beam and emits a resonated optical beam. An acceleration detection system measures an intensity of the resonated optical beam and calculates a magnitude of the external acceleration along the axial length of the optical cavity based on the intensity of the resonated optical beam resulting from motion of the second mirror. A stabilization system stabilizes the predefined center frequency of the optical beam independently of the external acceleration based on the modulation of the optical beam.
摘要翻译：提供了一个示例性的光学加速度计系统。提供具有预定中心频率并且关于预定中心频率进行频率调制的光束。光腔包括在第一端处的第一反射镜和在光腔的第二端的第二反射镜。响应于外部加速度，第二反射镜可沿着光腔的轴向长度移动，并且光腔接收光束并发射共振的光束。加速度检测系统测量共振光束的强度，并且基于由第二反射镜的运动产生的共振光束的强度来计算沿着光腔的轴向长度的外部加速度的大小。稳定系统基于光束的调制，独立于外部加速度稳定光束的预定中心频率。

25. 发明申请

US20140236522A1 RANGE-DEPENDENT BIAS CALIBRATION OF AN ACCELEROMETER SENSOR SYSTEM 有权
公开(公告)号：US20140236522A1
公开(公告)日：2014-08-21
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 , G01P15/08
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.

26. 发明申请

US20210215779A1 HEATER SYSTEM WITH MAGNETIC FIELD SUPPRESSION 有权
公开(公告)号：US20210215779A1
公开(公告)日：2021-07-15
申请号：US16741302
申请日：2020-01-13
申请人： MICHAEL D. BULATOWICZ
发明人： MICHAEL D. BULATOWICZ
IPC分类号： G01R33/38 , H05B3/03 , H05B3/06 , G01R33/26
摘要： 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.

27. 发明申请

US20170269122A1 DYNAMIC SELF-CALIBRATION OF AN ACCELEROMETER SYSTEM 审中-公开
公开(公告)号：US20170269122A1
公开(公告)日：2017-09-21
申请号：US15615438
申请日：2017-06-06
申请人： ROBERT E. STEWART , MICHAEL D. BULATOWICZ
发明人： ROBERT E. STEWART , 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 , G01P2015/0831 , G01P2015/084
摘要： 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.

28. 发明申请

US20150241527A1 CUSTOMIZED MAGNETIC SUSCEPTIBILITY MATERIALS 有权
标题翻译：定制的磁性可破坏材料
公开(公告)号：US20150241527A1
公开(公告)日：2015-08-27
申请号：US14188374
申请日：2014-02-24
申请人： MICHAEL D. BULATOWICZ
发明人： MICHAEL D. BULATOWICZ
IPC分类号： G01R33/34 , B05D7/00
CPC分类号： 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
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.
摘要翻译：一个例子包括制造复合材料的方法。该方法包括提供具有第一厚度尺寸的第一离散材料层。第一离散材料层包括具有第一磁化率的第一材料。该方法还包括在第一离散材料层上沉积具有第二厚度尺寸的第二离散材料层。第二离散材料层可以包括具有第二磁化率的第二材料。可以选择相对的第一和第二厚度尺寸以提供复合材料的期望的磁化率。

29. 发明申请

US20150042327A1 PROBE BEAM FREQUENCY STABILIZATION IN AN ATOMIC SENSOR SYSTEM 有权
标题翻译：原子传感器系统中的探头波束频率稳定
公开(公告)号：US20150042327A1
公开(公告)日：2015-02-12
申请号：US13960127
申请日：2013-08-06
申请人： MICHAEL D. BULATOWICZ
发明人： MICHAEL D. BULATOWICZ
IPC分类号： G01R33/26 , G01C19/62
CPC分类号： G01R33/26 , G01C19/62
摘要： An atomic sensor system includes a magnetic field generator configured to generate a magnetic field along an axis and a probe laser configured to generate an optical probe beam. Beam optics direct the optical probe beam through a sensor cell comprising an alkali metal vapor such that the optical probe beam has at least a vector component along the axis. The system also includes detection optics comprising a photodetector assembly configured to measure a Faraday rotation associated with the optical probe beam exiting the sensor cell and to generate a feedback signal based on the Faraday rotation associated with the optical probe beam exiting the sensor cell. The system further includes a laser controller configured to modulate a frequency of the optical probe beam about a center frequency and to substantially stabilize the center frequency of the optical probe beam based on the feedback signal.
摘要翻译：原子传感器系统包括被配置为沿着轴产生磁场的磁场发生器和被配置为产生光学探测光束的探测激光器。光束光学器件将光学探针光束引导通过包含碱金属蒸气的传感器单元，使得光学探针光束沿轴线至少具有矢量分量。该系统还包括检测光学器件，其包括光电检测器组件，其被配置为测量与离开传感器单元的光学探针光束相关联的法拉第旋转，并且基于与离开传感器单元的光学探针光束相关联的法拉第旋转生成反馈信号。该系统还包括激光控制器，该激光控制器被配置成基于反馈信号调制围绕中心频率的光学探针光束的频率并且基本上稳定光学探针光束的中心频率。

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