Terahertz Frequency Domain Spectrometer with Frequency Shifting of Source Laser Beam
    241.
    发明申请
    Terahertz Frequency Domain Spectrometer with Frequency Shifting of Source Laser Beam 有权
    太赫兹频域光谱仪,源激光束变频

    公开(公告)号:US20100314545A1

    公开(公告)日:2010-12-16

    申请号:US12861651

    申请日:2010-08-23

    Abstract: An apparatus for analyzing, identifying or imaging an target including first and second laser beams coupled to a pair of photoconductive switches to produce CW signals in one or more bands in a range of frequencies greater than 100 GHz focused on and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral heterodyne process to generate an electrical signal representative of some characteristics of the target. The lasers are tuned to different frequencies and a frequency shifter in the path of one laser beam allows the terahertz beam to be finely adjusted in one or more selected frequency bands.

    Abstract translation: 一种用于分析,识别或成像目标的装置,包括耦合到一对光电导开关的第一和第二激光束,以在大于100GHz的频率的范围内的一个或多个频带中产生CW信号,该信号集中于并经由 目标; 以及检测器,用于从从目标接收的信号中获取光谱信息,并使用多光谱外差处理产生表示目标的某些特性的电信号。 将激光器调谐到不同的频率,并且在一个激光束的路径中的频移器允许在一个或多个所选频带中微调太赫兹波束。

    SPECTROSCOPY HAVING CORRECTION FOR BROADBAND DISTORTION FOR ANALYZING MULTI-COMPONENT SAMPLES
    242.
    发明申请
    SPECTROSCOPY HAVING CORRECTION FOR BROADBAND DISTORTION FOR ANALYZING MULTI-COMPONENT SAMPLES 有权
    具有用于分析多组分样品的宽带失真校正的光谱

    公开(公告)号:US20100243900A1

    公开(公告)日:2010-09-30

    申请号:US12413666

    申请日:2009-03-30

    Abstract: A spectroscopic method and spectroscopy system therefrom for analyzing samples. A sample includes a first chemical component that has a characteristic first absorption peak is provided. The sample is irradiated in a measurement waveband proximate to the first absorption peak, and at a first and a second reference waveband where the first chemical component lacks characteristic absorption features. Reflected or transmitted detection data is obtained including a measured power proximate to the first absorption peak and first and second reference powers at the reference wavebands. A plurality of different waveband ratios are evaluated using pairs of detection data to generate a plurality of measured waveband ratio values. A parameter of the first chemical component is then determined by evaluating a multidimensional polynomial calibration equation that relates the parameter of the first chemical component to the plurality of different waveband ratios by substituting the measured waveband ratio values into the calibration relation.

    Abstract translation: 用于分析样品的光谱法和光谱系统。 样品包括具有特征性第一吸收峰的第一化学成分。 在接近第一吸收峰的测量波段和第一和第二参考波段照射样品,其中第一化学成分缺少特征吸收特征。 获得的反射或发射的检测数据包括接近第一吸收峰的测量的功率和在参考波段处的第一和第二参考功率。 使用成对的检测数据来评估多个不同的波段比,以产生多个测量的波段比值。 然后通过将测量的波段比值代入校正关系来评估将第一化学成分的参数与多个不同波段比率相关联的多维多项式校准方程来确定第一化学成分的参数。

    Digital spectrophotometer and spectrological method
    244.
    发明申请
    Digital spectrophotometer and spectrological method 有权
    数字分光光度计和光谱法

    公开(公告)号:US20080278720A1

    公开(公告)日:2008-11-13

    申请号:US11798147

    申请日:2007-05-10

    Abstract: A digital spectrophotometer and a spectrologial method for determining spectrum wavelength of an unknown illuminant, and the digital spectrophotometer has a base, an operating assembly and a photographic assembly. The operating assembly is attached to the base and has an operating pedestal, a rotating frame and a spectrometer. The rotating frame is connected rotatably to the operating pedestal. The spectrometer is connected solidly to the rotating frame. The photographic assembly is connected to the operating assembly. The spectrologial method is calculated the diffraction angle α i and the wavelength of the unknown illuminant by putting the parameters into the into the first and second functions.

    Abstract translation: 数字分光光度计和用于确定未知光源的光谱波长的分光光度法,数字分光光度计具有基座,操作组件和照相组件。 操作组件附接到基座并具有操作基座,旋转框架和光谱仪。 旋转框架可旋转地连接到操作基座。 光谱仪牢固地连接到旋转框架上。 摄影组件连接到操作组件。 通过将参数放入第一和第二功能中来计算分光方法的衍射角αi和未知光源的波长。

    Multiple wavelength spectrometer
    246.
    发明授权
    Multiple wavelength spectrometer 失效
    多波长光谱仪

    公开(公告)号:US07196790B2

    公开(公告)日:2007-03-27

    申请号:US10748397

    申请日:2003-12-30

    Inventor: Barrett E. Cole

    Abstract: Multiple wavelength spectrometers can be tuned to particular wavelengths. A dual wavelength spectrometer can include a spectrometer configured to detect at least some wavelengths that fall within the ultraviolet (UV) spectrum and a spectrometer configured to detect at least some wavelengths that fall within the visible spectrum. In some embodiments, a UV light spectrometer and a visible light spectrometer are disposed adjacent one another on a single substrate. A dual wavelength spectrometer can be used for analyzing bioaerosols, as well as for numerous other applications.

    Abstract translation: 多波长光谱仪可以调谐到特定波长。 双波长光谱仪可以包括配置成检测落入紫外(UV)光谱内的至少一些波长的光谱仪,以及被配置为检测落在可见光谱内的至少一些波长的光谱仪。 在一些实施例中,UV光谱仪和可见光光谱仪彼此相邻地设置在单个基板上。 双波长光谱仪可用于分析生物溶胶,以及许多其他应用。

    Monitoring system comprising infrared thermopile detetor
    248.
    发明申请
    Monitoring system comprising infrared thermopile detetor 有权
    监测系统包括红外线热电偶检测器

    公开(公告)号:US20040058488A1

    公开(公告)日:2004-03-25

    申请号:US10668489

    申请日:2003-09-23

    Inventor: Jose I. Arno

    Abstract: The present invention relates to a semiconductor processing system that employs infrared-based thermopile detector for process control, by analyzing a material of interest, based on absorption of infrared light at a characteristic wavelength by such material. Specifically, an infrared light beam is transmitted through a linear transmission path from an infrared light source through a sampling region containing material of interest into the thermopile detector. The linear transmission path reduces the risk of signal loss during transmission of the infrared light. The transmission path of the infrared light may comprise a highly smooth and reflective inner surface for minimizing such signal loss during transmission.

    Abstract translation: 本发明涉及一种采用基于红外线热电堆检测器进行过程控制的半导体处理系统,通过利用这种材料对特征波长的红外光的吸收来分析感兴趣的材料。 具体地说,将红外光束从红外光源通过包含感兴趣的材料的采样区域传送到热电堆检测器的线性传输路径。 线性传输路径降低了红外光传输期间信号丢失的风险。 红外光的传输路径可以包括高度平滑和反射的内表面,用于在传输期间最小化这种信号损失。

    Optical spectral reflectance sensor and controller
    249.
    发明授权
    Optical spectral reflectance sensor and controller 有权
    光谱反射率传感器和控制器

    公开(公告)号:US06596996B1

    公开(公告)日:2003-07-22

    申请号:US09912077

    申请日:2001-07-24

    Abstract: A spectral reflectance sensor including: a light source for emitting a modulated beam of red light; a light source for emitting a modulated beam of near infrared light; a receiver for receiving reflected light produced by either the red source or the near infrared source; a receiver for receiving incident light from either the red source or the infrared source; a signal conditioner responsive to the modulation such that the signals produced by the receivers in response to reflected and incident light from the source can be discriminated from signals produced by ambient light; and a microprocessor having an input such that the microprocessor can determine the intensities of incident red light, reflected red light; incident near infrared light; and reflected near infrared light. From these intensities, and by knowing the growing days since emergence or planting, the sensor can calculate the mid-growing season nitrogen fertilizer requirements of a plant.

    Abstract translation: 一种光谱反射传感器,包括:用于发射调制的红光束的光源; 用于发射近红外光的调制束的光源; 用于接收由红色源或近红外光源产生的反射光的接收器; 用于从红色源或红外源接收入射光的接收器; 响应于调制的信号调节器,使得响应于来自源的反射和入射光的接收器产生的信号可以与由环境光产生的信号区分开; 以及具有输入的微处理器,使得微处理器可以确定入射的红光,反射红光的强度; 事件近红外光; 并反射近红外光。 通过这些强度,通过了解自出苗或种植以来日益增长的日子,传感器可以计算出一个植物的中期生长季节氮肥需求。

    Multicolor radiation detector method and apparatus
    250.
    发明授权
    Multicolor radiation detector method and apparatus 失效
    多色辐射探测器的方法和装置

    公开(公告)号:US5444236A

    公开(公告)日:1995-08-22

    申请号:US208640

    申请日:1994-03-09

    Abstract: A two color radiation detector. A dispersive lens with a spectrally selective central obscuration focuses a first radiation band on a central location on focal plane array. The dispersive lens also focuses an annulus of out of focus radiation of a second radiation band concentric with the central location on the focal plane array. For point target detection the dispersive lens transmits plume band and guard band radiation to the staring focal plane array sensor. The staring focal plane array is located at the focal point of the plume band radiation. A spatial filter detects target signatures using information from the plume band and guard band radiation.

    Abstract translation: 双色辐射探测器。 具有光谱选择性中心遮蔽的色散透镜将第一辐射带聚焦在焦平面阵列上的中心位置。 分散透镜还聚焦与焦平面阵列上的中心位置同心的第二辐射带的焦距外辐射环。 对于点目标检测,色散透镜将羽流带和保护带辐射传输到凝视焦平面阵列传感器。 凝视焦平面阵列位于羽流带辐射的焦点处。 空间滤波器使用来自羽流带和保护带辐射的信息来检测目标特征。

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