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1. 发明授权

US09285390B2 Optical accelerometer system 有权
标题翻译：光学加速度计系统
公开(公告)号：US09285390B2
公开(公告)日：2016-03-15
申请号：US13907333
申请日：2013-05-31
申请人： A. Douglas Meyer , Michael D. Bulatowicz , Michael S. Larsen , Robert C. Griffith
发明人： A. Douglas Meyer , Michael D. Bulatowicz , Michael S. Larsen , Robert C. Griffith
IPC分类号： G01P15/08 , G01P15/093 , G01P15/18
CPC分类号： G01P15/093 , G01P15/08 , G01P15/18
摘要： One embodiment includes an accelerometer system. The system includes a laser configured to emit an optical beam at a linear polarization. The system also includes an optical cavity system. The optical cavity system includes a mirror that is coupled to an accelerometer housing via a spring and is configured to reflect the optical beam. The optical cavity system also includes at least one photodetector configured to receive at least a portion of at least one of the optical beam and the reflected optical beam and to generate an acceleration signal that is indicative of motion of the mirror resulting from an external acceleration acting upon the accelerometer housing. The system further includes an acceleration processor configured to calculate a magnitude of the external acceleration based on the acceleration signal.
摘要翻译：一个实施例包括加速度计系统。该系统包括被配置为以线偏振发射光束的激光器。该系统还包括光腔系统。光学腔系统包括经由弹簧耦合到加速度计壳体的反射镜，并被配置为反射光束。光腔系统还包括至少一个光电检测器，其被配置为接收光束和反射光束中的至少一个的至少一部分，并且产生指示由外部加速度作用产生的反射镜的运动的加速度信号在加速度计外壳上。该系统还包括加速度处理器，该加速度处理器被配置为基于加速度信号来计算外部加速度的大小。

2. 发明授权

US09645205B2 Combined electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) magnetometer system 有权
公开(公告)号：US09645205B2
公开(公告)日：2017-05-09
申请号：US13711199
申请日：2012-12-11
申请人： Michael S. Larsen , Robert C. Griffith , Michael D. Bulatowicz , Philip R. Clark
发明人： Michael S. Larsen , Robert C. Griffith , Michael D. Bulatowicz , Philip R. Clark
IPC分类号： G01V3/00 , G01R33/24 , G01R33/26
CPC分类号： G01R33/26 , G01R33/032 , G01R33/24 , G01R33/443 , G01R33/60
摘要： One embodiment of the invention includes a magnetometer system. The system includes a sensor cell comprising alkali metal particles and a probe laser configured to provide a probe beam through the sensor cell. The system also includes a detection system configured to implement nuclear magnetic resonance (NMR) detection of a vector magnitude of an external magnetic field in a first of three orthogonal axes based on characteristics of the probe beam passing through the sensor cell and to implement electron paramagnetic resonance (EPR) detection of a vector magnitude of the external magnetic field in a second and a third of the three orthogonal axes based on the characteristics of the probe beam passing through the sensor cell. The system further includes a controller configured to calculate a scalar magnitude of the external magnetic field based on the magnitude of the external magnetic field in each of the three orthogonal axes.

3. 发明授权

US10060993B2 Combined electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) magnetometer system 有权
公开(公告)号：US10060993B2
公开(公告)日：2018-08-28
申请号：US15474433
申请日：2017-03-30
申请人： Michael S. Larsen , Robert C. Griffith , Michael D. Bulatowicz , Philip R. Clark
发明人： Michael S. Larsen , Robert C. Griffith , Michael D. Bulatowicz , Philip R. Clark
IPC分类号： G01V3/00 , G01R33/26 , G01R33/032 , G01R33/60 , G01R33/44
CPC分类号： G01R33/26 , G01R33/032 , G01R33/24 , G01R33/443 , G01R33/60
摘要： One embodiment of the invention includes a magnetometer system. The system includes a sensor cell comprising alkali metal particles and a probe laser configured to provide a probe beam through the sensor cell. The system also includes a detection system configured to implement nuclear magnetic resonance (NMR) detection of a vector magnitude of an external magnetic field in a first of three orthogonal axes based on characteristics of the probe beam passing through the sensor cell and to implement electron paramagnetic resonance (EPR) detection of a vector magnitude of the external magnetic field in a second and a third of the three orthogonal axes based on the characteristics of the probe beam passing through the sensor cell. The system further includes a controller configured to calculate a scalar magnitude of the external magnetic field based on the magnitude of the external magnetic field in each of the three orthogonal axes.

4. 发明申请

US20120191396A1 GYROSCOPE SYSTEM MAGNETIC FIELD ERROR COMPENSATION 有权
标题翻译：陀螺仪系统磁场误差补偿
公开(公告)号：US20120191396A1
公开(公告)日：2012-07-26
申请号：US13011530
申请日：2011-01-21
申请人： Robert C. Griffith , Michael S. Larsen , Michael D. Bulatowicz
发明人： Robert C. Griffith , Michael S. Larsen , Michael D. Bulatowicz
IPC分类号： G06F19/00
CPC分类号： G01C19/62
摘要： 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.
摘要翻译：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。

5. 发明授权

US08600691B2 Gyroscope system magnetic field error compensation 有权
标题翻译：陀螺仪系统磁场误差补偿
公开(公告)号：US08600691B2
公开(公告)日：2013-12-03
申请号：US13011530
申请日：2011-01-21
申请人： Robert C. Griffith , Michael S. Larsen , Michael D. Bulatowicz
发明人： Robert C. Griffith , Michael S. Larsen , Michael D. Bulatowicz
IPC分类号： G01C17/38 , G01V3/00
CPC分类号： G01C19/62
摘要： 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.
摘要翻译：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。

6. 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。

7. 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.

8. 发明授权

US5495093A Soldering apparatus processor having temperature selection, calibration and heating control of tip 失效
标题翻译：焊接设备处理器具有温度选择，校准和加热控制的尖端
公开(公告)号：US5495093A
公开(公告)日：1996-02-27
申请号：US13968
申请日：1993-02-05
申请人： Robert C. Griffith
发明人： Robert C. Griffith
IPC分类号： B23K3/03 , H05B1/02
CPC分类号： B23K3/033
摘要： A soldering system is disclosed having a stored program microcontroller by which one or more temperatures can be selected for a soldering iron tip. The system then automatically maintains such tip temperature during the soldering operation. The programmed microcontroller is coupled through input/output and interface circuits to a heating control that in turn is connected to the iron heater element for switching AC power in units of full waveform cycles across the element while the temperature of the tip is measured by a resistor sensor and an associated bridge measurement circuit so as to produce a signal that is applied to an input of the microcontroller forming a feedback loop. This causes the resistor sensor and hence the iron tip to reach the desired temperature. A thermocouple is provided for measuring and calibrating the actual temperature of the iron tip thus ensuring that the resistor sensor and associated feedback loop causes the microprocessor to drive the heater element as needed to cause the soldering tip to stabilize at the selected temperature. The external thermocouple probe may also be used separately and simultaneously with the soldering operation to ensure that the temperature of a probed component does not exceed a predetermined safe level.
摘要翻译：公开了一种具有存储的程序微控制器的焊接系统，通过该程序微控制器可以选择烙铁头的一个或多个温度。然后，系统在焊接操作期间自动维持这样的尖端温度。编程的微控制器通过输入/输出和接口电路耦合到加热控制，加热控制又连接到铁加热器元件，用于以整个元件的全波形循环为单位切换交流电，同时尖端的温度由电阻传感器和相关联的桥接测量电路，以产生施加到形成反馈回路的微控制器的输入端的信号。这使得电阻传感器因此铁尖达到所需的温度。提供热电偶用于测量和校准铁尖端的实际温度，从而确保电阻传感器和相关联的反馈环路使得微处理器根据需要驱动加热器元件，以使焊接头在所选择的温度下稳定。外部热电偶探头也可以与焊接操作分开并同时使用，以确保探测部件的温度不超过预定的安全水平。

9. 发明授权

US09494462B2 Balanced intensity differential photo detector 有权
标题翻译：平衡强度差分光电探测器
公开(公告)号：US09494462B2
公开(公告)日：2016-11-15
申请号：US14622158
申请日：2015-02-13
申请人： Robert C. Griffith
发明人： Robert C. Griffith
IPC分类号： H01J40/14 , G01J1/42 , G01J1/44
CPC分类号： G01J1/4228 , G01J1/0295 , G01J1/44
摘要： A circuit includes a first photo detector and a second photo detector to receive a first and second light input signal, respectfully, to generate a first current output signal and second current output signal respectively in response to the respective light input signals. A current multiplier stage receives the second current output signal from the second photo detector to generate a multiplied current output signal that is greater than the magnitude of the second current output signal. A differential multiplier having a first current path receives a portion of the multiplied current output signal and a second current path that receives another portion of the multiplied current output signal. The first current path is in series with the first current output signal to facilitate balancing of currents between the first current output signal of the first photo detector and the second current output signal of the second photo detector.
摘要翻译：电路包括第一光电检测器和第二光电检测器，用于接收第一和第二光输入信号，以分别响应于相应的光输入信号产生第一电流输出信号和第二电流输出信号。电流倍增器级接收来自第二光电检测器的第二电流输出信号，以产生大于第二电流输出信号幅度的相乘的电流输出信号。具有第一电流路径的差分乘法器接收相乘电流输出信号的一部分和接收相乘电流输出信号的另一部分的第二电流路径。第一电流路径与第一电流输出信号串联，以便于平衡第一光电检测器的第一电流输出信号和第二光电检测器的第二电流输出信号之间的电流。

10. 发明授权

US08915708B2 Turbocharger with air buffer seal 有权
标题翻译：涡轮增压器带空气缓冲器密封
公开(公告)号：US08915708B2
公开(公告)日：2014-12-23
申请号：US13168178
申请日：2011-06-24
申请人： Nan Yang , Jeff A. Jensen , Robert C. Griffith
发明人： Nan Yang , Jeff A. Jensen , Robert C. Griffith
IPC分类号： F01D25/16 , F01D25/18 , F16C33/76 , F16J15/40 , F16C19/18
CPC分类号： F01D25/186 , F04D29/104 , F05D2220/40 , F16C19/184 , F16C33/762 , F16C2360/24 , F16J15/40
摘要： A turbocharger includes a turbine section, a compressor section and a bearing section. A turbine wheel and a compressor wheel are mounted on a shaft and the shaft is rotatably mounted in a bore of a housing. A lubrication system circulates lubricant through the bearing section. First and second spaced apart seals are positioned along the shaft. A recess is positioned between the first seal and the second seal to define an air buffer chamber. The air buffer chamber is provided with pressurized air to discourage lubricant leakage past the first seal.
摘要翻译：涡轮增压器包括涡轮部分，压缩机部分和轴承部分。涡轮机叶轮和压缩机叶轮安装在轴上，并且轴可旋转地安装在壳体的孔中。润滑系统通过轴承部分循环润滑剂。第一和第二间隔开的密封件沿着轴定位。凹部位于第一密封件和第二密封件之间以限定空气缓冲室。空气缓冲室设有加压空气以阻止经过第一密封的润滑剂泄漏。

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