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11. 发明授权

US07009170B2 Active remote sensing using a simultaneous spectral sampling technique 有权
标题翻译：使用同时光谱采样技术的主动遥感
公开(公告)号：US07009170B2
公开(公告)日：2006-03-07
申请号：US10603695
申请日：2003-06-26
申请人： Michael E. Dobbs , Jeff D. Pruitt , Matthew L. Gypson , Benjamin R. Neff
发明人： Michael E. Dobbs , Jeff D. Pruitt , Matthew L. Gypson , Benjamin R. Neff
IPC分类号： H01J40/14 , H01J5/16
CPC分类号： G01N21/39 , G01N21/3151 , G01N33/004 , G01N2021/1793 , G01N2021/396 , G01N2201/067 , G01N2201/0691
摘要： A system for sensing a characteristic of a sample may include a tunable source configured to emit optical radiation that varies over a wavelength range at a sweep frequency and a reference source configured to emit optical radiation at a reference wavelength. A first modulator may be configured to modulate the first optical radiation at a first frequency, and a second modulator may be configured to modulate the second optical radiation at a second frequency that is different from the first frequency and the sweep frequency. A science detector may be configured to detect the optical radiation from the first modulator and the second modulator after interaction with the sample and generate a science signal. A number of lock-in amplifiers may be respectively configured to generate components of the science signal that are present at the first and second frequencies. A processor may be configured to determine a characteristic of the sample based on the components of the science signal that are present at the first and second frequencies.
摘要翻译：用于感测样本特征的系统可以包括被配置为发射在扫描频率处的波长范围内变化的光辐射的可调谐源和被配置为发射参考波长的光辐射的参考源。第一调制器可以被配置为以第一频率调制第一光辐射，并且第二调制器可以被配置为以不同于第一频率和扫频的第二频率来调制第二光辐射。科学检测器可以被配置为在与样本相互作用之后检测来自第一调制器和第二调制器的光辐射并产生科学信号。多个锁定放大器可以分别被配置为产生存在于第一和第二频率的科学信号的分量。处理器可以被配置为基于在第一和第二频率处存在的科学信号的分量来确定样本的特性。

12. 发明授权

US06949734B2 Active remote sensing using a spectral lock-in technique 有权
标题翻译：使用光谱锁定技术的主动遥感
公开(公告)号：US06949734B2
公开(公告)日：2005-09-27
申请号：US10419797
申请日：2003-04-22
申请人： Benjamin R. Neff , Jeff D. Pruitt , Matthew L. Gypson , Michael E. Dobbs
发明人： Benjamin R. Neff , Jeff D. Pruitt , Matthew L. Gypson , Michael E. Dobbs
IPC分类号： G01J3/433 , G01N21/31 , G01N21/39 , H01J40/14 , H01J5/16
CPC分类号： G01N21/39 , G01J3/433 , G01N21/3151 , G01N2021/399
摘要： A system for sensing a characteristic of a sample may include a tunable source configured to emit optical radiation that varies over a wavelength range at a first frequency and a reference source configured to emit optical radiation that varies in amplitude at a second frequency. A science detector may be configured to detect the optical radiation from the tunable source and the reference source after interaction with the sample and generate a science signal. A number of lock-in amplifiers may be respectively configured to generate components of the science signal that are present at the first and second frequencies. A processor may be configured to determine a characteristic of the sample based on the components of the science signal that are present at the first and second frequencies.
摘要翻译：用于感测样本特征的系统可以包括被配置为发射在第一频率的波长范围内变化的光辐射的可调谐源和被配置为发射在第二频率上以幅度变化的光辐射的参考源。科学检测器可以被配置为在与样本相互作用之后检测来自可调谐源和参考源的光辐射并产生科学信号。多个锁定放大器可以分别被配置为产生存在于第一和第二频率的科学信号的分量。处理器可以被配置为基于在第一和第二频率处存在的科学信号的分量来确定样本的特性。

13. 发明授权

US06865196B2 Laser spectroscopy using a master/slave architecture 失效
标题翻译：激光光谱使用主/从结构
公开(公告)号：US06865196B2
公开(公告)日：2005-03-08
申请号：US10155172
申请日：2002-05-28
申请人： Michael E. Dobbs , Peter Wheel
发明人： Michael E. Dobbs , Peter Wheel
IPC分类号： G01N21/39 , H01S5/0687 , H01S5/40 , H01S3/10
CPC分类号： G01J3/4338 , G01N21/39 , H01S5/0687 , H01S5/40 , H01S5/4006
摘要： A system for tuning one or more second radiant sources relative to a first radiant source may include a coupler configured to combine output signals from the first radiant source and a second radiant source to generate a heterodyne signal containing a frequency difference between the output signals from the first radiant source and the second radiant source. A photodetector may be configured to convert the heterodyne signal into an electrical signal containing the frequency difference. A spectrum analyzer may be configured to measure the frequency difference in the electrical signal and generate a precise difference value. A controller may be configured to adjust a wavelength of the second radiant source relative to that of the first radiant source based on the precise difference value. Laser spectroscopy may be performed by passing the output signals from the first radiant source and the second radiant source through a sample volume and detecting reflected or emitted radiation.
摘要翻译：用于相对于第一辐射源调谐一个或多个第二辐射源的系统可以包括耦合器，其被配置为组合来自第一辐射源和第二辐射源的输出信号，以产生外差信号，该外差信号包含来自第一辐射源的输出信号之间的频率差第一辐射源和第二辐射源。光电检测器可以被配置为将外差信号转换成包含频差的电信号。频谱分析仪可以被配置为测量电信号中的频率差并产生精确的差值。控制器可以被配置为基于精确的差值来调整相对于第一辐射源的波长的第二辐射源的波长。可以通过将来自第一辐射源和第二辐射源的输出信号通过样本体积并检测反射或发射的辐射来执行激光光谱。

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