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1.发明申请公开(公告)号：US20070076776A1
公开(公告)日：2007-04-05
申请号：US11161094
申请日：2005-07-22
申请人： Lisa Lust , Douglas Carlson , Daniel Youngner
发明人： Lisa Lust , Douglas Carlson , Daniel Youngner
IPC分类号： H01S3/22
摘要： Systems and methods for optically pumping alkali-metal atoms using Coherence Population Trapping (CPT) resonances are disclosed. An illustrative push-pull optical pumping system for inducing CPT resonances in a resonance cell containing an admixture of alkali-metal atoms and one or more buffer gasses may include a laser assembly adapted to produce alternating orthogonally polarized light, and at least one DC current source adapted to output a constant-intensity carrier current signal for inducing laser emission from the laser assembly at a carrier wavelength of the alkali-metal atoms. An RF modulated signal outputted from an RF modulation source can be rectified, split, and phase-shifted for inducing a time-dependent polarization of the laser light that can be used to enhance CPT resonances. The alternating orthogonally polarized light from the laser assembly can then be used to optically pump the alkali-metal atoms within the vapor cavity, producing a dark state that can be detected with a photodetector or the like.
摘要翻译： 公开了使用Coherence群体捕获（CPT）共振光学泵浦碱金属原子的系统和方法。 用于在含有碱金属原子和一种或多种缓冲气体的混合物的共振电池中诱导CPT共振的说明性推挽光泵送系统可以包括适于产生交替的正交偏振光的激光组件，以及至少一个DC电流源 适于输出恒定强度的载流子电流信号，用于在碱金属原子的载流波长下激发来自激光组件的激光发射。 可以对从RF调制源输出的RF调制信号进行整流，分频和相移，以引起可用于增强CPT谐振的激光的时间依赖极化。 然后可以使用来自激光组件的交替正交偏振光来光学地泵送蒸气腔内的碱金属原子，产生可用光电检测器等检测的暗态。
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公开(公告)号：US08928880B2
公开(公告)日：2015-01-06
申请号：US13560220
申请日：2012-07-27
申请人： Daniel Youngner , Yue Liu , Lisa Lust
发明人： Daniel Youngner , Yue Liu , Lisa Lust
CPC分类号： G01J3/0237 , G01J3/0208 , G01J3/0229 , G01J3/14 , G01J3/1804 , G01J3/2803 , G01J3/457
摘要： An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal.
摘要翻译： 用于检测气体浓度的装置包括在谐振频率附近振荡的编码滤波器。 光检测器位于编码滤波器的下方，使得编码滤波器选择性地阻挡指向光检测器的光。 定位光学器件将光谱信息投影到编码滤波器上。 处理器分析从光电检测器接收的信号。 处理器适用于加重谐波阁楼信号。
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公开(公告)号：US20120318041A1
公开(公告)日：2012-12-20
申请号：US13162119
申请日：2011-06-16
申请人： Daniel Youngner , Lisa Lust
发明人： Daniel Youngner , Lisa Lust
IPC分类号： G01N21/17
CPC分类号： G01N21/1702
摘要： Some embodiments are directed to a photoacoustic sensor. The photoacoustic sensor may comprise: a gas cell with an opening; a light source to generate to radiate a sample gas within the gas cell; an optical microphone to detect the sample gas within the gas cell; and a membrane aligned with the opening of the gas cell to permit sample gas to enter the gas cell. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity of the semiconducting laser. The optical microphone further includes a pressure-sensitive membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the pressure-sensitive membrane flexes in response to acoustic pressure waves. The phase of the reflected light is dependent upon a distance of the pressure-sensitive membrane from an aperture of the semiconducting laser.
摘要翻译： 一些实施例涉及光声传感器。 光声传感器可以包括：具有开口的气室; 用于产生以在气室内辐射样气的光源; 用于检测气室内的样品气体的光学麦克风; 以及与气室的开口对准的膜，以允许样品气体进入气室。 光学麦克风包括半导体激光器。 半导体激光器包括在半导体激光器的空腔内的p-n结。 光学传声器还包括压敏膜，其接收从半导体激光器发射的相干光并将反射光引导回半导体激光器。 在光学麦克风的操作期间，压敏膜响应于声压波而弯曲。 反射光的相位取决于压敏膜与半导体激光器的孔的距离。
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公开(公告)号：US20120321322A1
公开(公告)日：2012-12-20
申请号：US13162169
申请日：2011-06-16
申请人： Lisa Lust , Daniel Youngner , Doug Carlson
发明人： Lisa Lust , Daniel Youngner , Doug Carlson
IPC分类号： H04B10/02
CPC分类号： H04R23/008 , H04R2410/00
摘要： Some embodiments relate to an optical microphone according to an example embodiment. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity. The optical microphone further includes an acoustic membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the acoustic membrane flexes in response to pressure waves. The phase of the reflected light is dependent upon a distance of the acoustic membrane from the semiconducting laser.
摘要翻译： 一些实施例涉及根据示例实施例的光学麦克风。 光学麦克风包括半导体激光器。 半导体激光器包括腔内的p-n结。 光学麦克风还包括声膜，其接收从半导体激光器发射的相干光，并将反射光引导回半导体激光器。 在光学麦克风的操作期间，声膜响应于压力波而弯曲。 反射光的相位取决于声膜与半导体激光器的距离。
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公开(公告)号：US20130027700A1
公开(公告)日：2013-01-31
申请号：US13560220
申请日：2012-07-27
申请人： Daniel Youngner , Yue Liu , Lisa Lust
发明人： Daniel Youngner , Yue Liu , Lisa Lust
CPC分类号： G01J3/0237 , G01J3/0208 , G01J3/0229 , G01J3/14 , G01J3/1804 , G01J3/2803 , G01J3/457
摘要： An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal.
摘要翻译： 用于检测气体浓度的装置包括在谐振频率附近振荡的编码滤波器。 光检测器位于编码滤波器的下方，使得编码滤波器选择性地阻挡指向光检测器的光。 定位光学器件将光谱信息投影到编码滤波器上。 处理器分析从光电检测器接收的信号。 处理器适用于加重谐波阁楼信号。
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公开(公告)号：US08829893B2
公开(公告)日：2014-09-09
申请号：US13564379
申请日：2012-08-01
申请人： Daniel Youngner , Lisa Lust , Douglas R. Carlson , Kelly Muldoon
发明人： Daniel Youngner , Lisa Lust , Douglas R. Carlson , Kelly Muldoon
摘要： In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less labor-intensive fashion compared to current techniques for determining the position of a piston within a linear actuator. One or more magnets may be operably coupled to the piston, and a linear array of sensors may be disposed along an exterior length of the linear actuator. The sensors may measure the magnetic field generated by the magnet and, based on the measured magnetic field, may determine the location of the piston within the linear actuator.
摘要翻译： 通常，本公开涉及用于确定活塞在线性致动器（例如液压缸）内的位置的技术，其以比现有的用于确定活塞位置的技术更具成本效益和更少劳动密集型的方式 线性致动器。 一个或多个磁体可以可操作地联接到活塞，并且传感器的线性阵列可以沿着线性致动器的外部长度设置。 传感器可以测量由磁体产生的磁场，并且基于测量的磁场可以确定活塞在线性致动器内的位置。
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公开(公告)号：US08594507B2
公开(公告)日：2013-11-26
申请号：US13162119
申请日：2011-06-16
申请人： Daniel Youngner , Lisa Lust
发明人： Daniel Youngner , Lisa Lust
IPC分类号： H04B10/00
CPC分类号： G01N21/1702
摘要： Some embodiments are directed to a photoacoustic sensor. The photoacoustic sensor may comprise: a gas cell with an opening; a light source to generate to radiate a sample gas within the gas cell; an optical microphone to detect the sample gas within the gas cell; and a membrane aligned with the opening of the gas cell to permit sample gas to enter the gas cell. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity of the semiconducting laser. The optical microphone further includes a pressure-sensitive membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the pressure-sensitive membrane flexes in response to acoustic pressure waves. The phase of the reflected light is dependent upon a distance of the pressure-sensitive membrane from an aperture of the semiconducting laser.
摘要翻译： 一些实施例涉及光声传感器。 光声传感器可以包括：具有开口的气室; 用于产生以在气室内辐射样气的光源; 用于检测气室内的样品气体的光学麦克风; 以及与气室的开口对准的膜，以允许样品气体进入气室。 光学麦克风包括半导体激光器。 半导体激光器包括在半导体激光器的空腔内的p-n结。 光学传声器还包括压敏膜，其接收从半导体激光器发射的相干光并将反射光引导回半导体激光器。 在光学麦克风的操作期间，压敏膜响应于声压波而弯曲。 反射光的相位取决于压敏膜与半导体激光器的孔的距离。
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公开(公告)号：US20130063132A1
公开(公告)日：2013-03-14
申请号：US13564379
申请日：2012-08-01
申请人： Daniel Youngner , Lisa Lust , Douglas R. Carlson , Kelly Muldoon
发明人： Daniel Youngner , Lisa Lust , Douglas R. Carlson , Kelly Muldoon
摘要： In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less labor-intensive fashion compared to current techniques for determining the position of a piston within a linear actuator. One or more magnets may be operably coupled to the piston, and a linear array of sensors may be disposed along an exterior length of the linear actuator. The sensors may measure the magnetic field generated by the magnet and, based on the measured magnetic field, may determine the location of the piston within the linear actuator.
摘要翻译： 通常，本公开涉及用于确定活塞在线性致动器（例如液压缸）内的位置的技术，其以比现有的用于确定活塞位置的技术更具成本效益和更少劳动密集型的方式 线性致动器。 一个或多个磁体可以可操作地联接到活塞，并且传感器的线性阵列可以沿着线性致动器的外部长度设置。 传感器可以测量由磁体产生的磁场，并且基于测量的磁场可以确定活塞在线性致动器内的位置。
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公开(公告)号：US20090223700A1
公开(公告)日：2009-09-10
申请号：US12042897
申请日：2008-03-05
申请人： Daniel Youngner , Son Thai Lu , Helen Chanhvongsak , Lisa Lust , Doug Carlson
发明人： Daniel Youngner , Son Thai Lu , Helen Chanhvongsak , Lisa Lust , Doug Carlson
CPC分类号： H05K3/4644 , H05K1/028 , H05K1/0298 , H05K1/0393 , H05K1/111 , H05K1/115 , H05K1/167 , H05K3/0058 , H05K3/06 , H05K3/061 , H05K3/24 , H05K3/30 , H05K3/4038 , H05K3/421 , H05K3/4682 , H05K2201/0104 , H05K2201/0154 , H05K2201/0317 , H05K2201/0394 , H05K2203/016 , H05K2203/0165 , H05K2203/0271
摘要： An approach for making thin flexible circuits. A layer of dielectric may have one or two surfaces coated with metal. The dielectric and the metal may each have a sub-mil thickness. The dielectric may be held in a fixture for fabrication like that of integrated circuits. The metal may be patterned and have components attached. More layers of dielectric and patterned metal may be added to the flexible circuit. Also bond pads and connecting vias may be fabricated in the flexible circuit. The flexible circuit may be cut into a plurality of smaller flexible circuits.
摘要翻译： 制造薄柔性电路的方法。 电介质层可以具有涂覆有金属的一个或两个表面。 电介质和金属可以各自具有亚密尔厚度。 电介质可以保持在类似于集成电路的固定装置中。 金属可以被图案化并且具有附接的部件。 电介质和图案化的金属层可以添加到柔性电路中。 还可以在柔性电路中制造接合焊盘和连接通孔。 柔性电路可以被切割成多个较小的柔性电路。
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公开(公告)号：US08848191B2
公开(公告)日：2014-09-30
申请号：US13419827
申请日：2012-03-14
申请人： Lisa Lust
发明人： Lisa Lust
IPC分类号： G01N21/00
CPC分类号： G01N21/17 , G01N2021/1704
摘要： A photoacoustic sensing device includes a laser tuned to emit light to cause optical absorption by a gas to be detected, a resonant acoustic sensor positioned to receive pressure waves from the gas, wherein the laser is modulated to match a resonant frequency of the resonant acoustic sensor, and a first mirror positioned to receive light from the laser after the light has passed through the gas and to reflect the received light back through the gas to cause additional optical absorption.
摘要翻译： 光声感测装置包括被调谐以发射光以引起待检测气体的光吸收的激光器，定位成接收来自气体的压力波的谐振声传感器，其中激光器被调制以匹配谐振声传感器的谐振频率 以及第一反射镜，其被定位成在光已经通过气体之后接收来自激光器的光并且将接收到的光反射回通过气体以引起额外的光学吸收。
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