专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09970999B2 Nuclear magnetic resonance probe system 有权
公开(公告)号：US09970999B2
公开(公告)日：2018-05-15
申请号：US13907293
申请日：2013-05-31
申请人： Michael S. Larsen , Henry C. Abbink , Thad G. Walker , Michael D. Bulatowicz
发明人： Michael S. Larsen , Henry C. Abbink , Thad G. Walker , Michael D. Bulatowicz
IPC分类号： G01R33/26 , G01R33/32 , G01C19/62
CPC分类号： G01R33/26 , G01C19/62 , G01R33/323
摘要： One embodiment includes a nuclear magnetic resonance (NMR) sensor system. The system includes a pump laser configured to generate an optical pump beam at a first wavelength and a probe laser configured to generate an optical probe beam at a second wavelength that is different from the first wavelength. The system also includes beam optics configured to direct the pump laser and the probe laser along orthogonal axes through a sensor cell comprising an alkali metal vapor. The system further includes detection optics that include a photodetector assembly configured to measure at least one characteristic associated with the optical probe beam leaving the sensor cell for measurement of a polarization vector of the alkali metal vapor. The detection optics can include at least one filter configured to filter light having the first wavelength and to pass light having the second wavelength to the photodetector assembly.

2. 发明申请

US20090309668A1 Reversible Alkali Beam Cell 有权
标题翻译：可逆碱性电池
公开(公告)号：US20090309668A1
公开(公告)日：2009-12-17
申请号：US12481709
申请日：2009-06-10
申请人： Michael D. Bulatowicz , Michael S. Larsen
发明人： Michael D. Bulatowicz , Michael S. Larsen
IPC分类号： G04F5/14 , H03B17/00
CPC分类号： G04F5/14
摘要： One embodiment of the invention includes an alkali beam cell system that comprises a reversible alkali beam cell. The reversible alkali beam cell includes a first chamber configured as a reservoir chamber that is configured to evaporate an alkali metal during a first time period and as a detection chamber that is configured to collect the evaporated alkali metal during a second time period. The reversible alkali beam cell also includes a second chamber configured as the detection chamber during the first time period and as the reservoir chamber during the second time period. The reversible alkali beam cell further includes an aperture interconnecting the first and second chambers and through which the alkali metal is allowed to diffuse.
摘要翻译：本发明的一个实施例包括一个包括可逆碱性束电池的碱性束电池系统。可逆碱束电池包括构造为储存室的第一室，其构造成在第一时间段期间蒸发碱金属，并且被配置为在第二时间段内收集蒸发的碱金属的检测室。可逆碱束电池还包括在第一时间段期间被配置为检测室的第二室和在第二时间段期间的储存室。可逆碱束电池还包括互连第一和第二腔室的孔，并允许碱金属扩散。

3. 发明授权

US11133117B2 Atomic interferometer system 有权
公开(公告)号：US11133117B2
公开(公告)日：2021-09-28
申请号：US16866931
申请日：2020-05-05
申请人： Michael S. Larsen , Thad G. Walker , Justin M. Brown
发明人： Michael S. Larsen , Thad G. Walker , Justin M. Brown
IPC分类号： G21K1/00 , G01C21/24
摘要： An atom interferometer system includes a sensor cell comprising alkali metal atoms. An optical system generates first and second interrogation beams having respective first and second frequencies and a circular polarization. The optical system includes optics that provide the first and second interrogation beams through the sensor cell in a first direction and reflect the first and second interrogation beams back through the sensor cell in a second direction opposite the first direction and in a same circular polarization to drive the alkali metal atoms from a first energy state to a greater energy state during an interrogation stage of sequential measurement cycles. A detection system detects a state distribution of a population of the alkali metal atoms between the first energy state and the second energy state during the interrogation stage based on an optical response.

4. 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.

5. 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。

6. 发明授权

US07893780B2 Reversible alkali beam cell 有权
标题翻译：可逆碱束电池
公开(公告)号：US07893780B2
公开(公告)日：2011-02-22
申请号：US12481709
申请日：2009-06-10
申请人： Michael D. Bulatowicz , Michael S. Larsen
发明人： Michael D. Bulatowicz , Michael S. Larsen
IPC分类号： H03L7/26 , H03B17/00
CPC分类号： G04F5/14
摘要： One embodiment of the invention includes an alkali beam cell system that comprises a reversible alkali beam cell. The reversible alkali beam cell includes a first chamber configured as a reservoir chamber that is configured to evaporate an alkali metal during a first time period and as a detection chamber that is configured to collect the evaporated alkali metal during a second time period. The reversible alkali beam cell also includes a second chamber configured as the detection chamber during the first time period and as the reservoir chamber during the second time period. The reversible alkali beam cell further includes an aperture interconnecting the first and second chambers and through which the alkali metal is allowed to diffuse.
摘要翻译：本发明的一个实施例包括一个包括可逆碱性束电池的碱性束电池系统。可逆碱束电池包括构造为储存室的第一室，其构造成在第一时间段期间蒸发碱金属，并且被配置为在第二时间段内收集蒸发的碱金属的检测室。可逆碱束电池还包括在第一时间段期间被配置为检测室的第二室和在第二时间段期间的储存室。可逆碱束电池还包括互连第一和第二腔室的孔，并允许碱金属扩散。

7. 发明授权

US11346877B2 Vector-sensitive electrometer 有权
公开(公告)号：US11346877B2
公开(公告)日：2022-05-31
申请号：US17005399
申请日：2020-08-28
申请人： Eric A. Imhof , Michael S. Larsen
发明人： Eric A. Imhof , Michael S. Larsen
IPC分类号： G01R29/08
摘要： One embodiment includes an electrometer system that includes a sensor cell and a probe laser to generate a probe beam directed through the sensor cell in a first direction and exiting the sensor cell as a detection beam. The system also includes a coupling laser to generate a coupling beam directed through the sensor cell collinearly and anti-parallel with the probe beam. The system also includes a reference signal generator configured to generate a reference signal having a predetermined polarization and a predetermined frequency through the sensor cell. The system further includes a detection system configured to monitor the detection beam to determine a frequency and a vector component of an external signal based on an intensity of the detection beam and based on the predetermined polarization and the predetermined frequency of the reference signal.

8. 发明授权

US10782368B2 Pulsed-beam atomic magnetometer system 有权
公开(公告)号：US10782368B2
公开(公告)日：2020-09-22
申请号：US15990974
申请日：2018-05-29
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
摘要： 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.

9. 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.

10. 发明授权

US09618362B2 Self-calibrating nuclear magnetic resonance (NMR) gyroscope system 有权
公开(公告)号：US09618362B2
公开(公告)日：2017-04-11
申请号：US14295091
申请日：2014-06-03
申请人： Michael D. Bulatowicz , Michael S. Larsen
发明人： Michael D. Bulatowicz , Michael S. Larsen
IPC分类号： G01V3/00 , G01C25/00 , G01C19/62
CPC分类号： G01C25/00 , G01C19/62 , G01C25/005
摘要： One embodiment includes a nuclear magnetic resonance (NMR) gyroscope system. The system includes a vapor cell comprising an alkali metal and a plurality of gyromagnetic isotopes and a pump laser configured to generate an optical pump beam configured to spin-polarize the alkali metal. The system also includes a probe laser that generates an optical probe beam and a detection system configured to monitor the optical probe beam and to calculate a rotation of the NMR gyroscope system about a sensitive axis based on a modulation of the optical probe beam in response to precession of the plurality of gyromagnetic isotopes resulting from the spin-polarization of the alkali metal. The system further includes a calibration controller that modulates a characteristic of the optical pump beam to substantially mitigate bias errors associated with the gyromagnetic isotopes in the calculation of the rotation of the NMR gyroscope system about the sensitive axis.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式