Acousto-optic dispersive light filter
    232.
    发明授权
    Acousto-optic dispersive light filter 失效
    声光分散光滤光片

    公开(公告)号:US4639092A

    公开(公告)日:1987-01-27

    申请号:US666416

    申请日:1984-10-30

    CPC classification number: G01J3/1256 G02F1/116

    Abstract: The invention is directed to an acousto-optic dispersive light analyzer (AODLF) which is an electronically adjustable spectroscopic device capable of instantaneously monitoring many wavelengths with a fixed drive frequency. The AODLF has about a one octave range, whose center is selected by changing the RF. The resolution of the AODLF in the infrared is several thousand, and it is electronically adjustable. The acousto-optic device according to this invention is particularly useful for the detection and analysis of short light pulses.

    Abstract translation: 本发明涉及一种声光分散光分析仪(AODLF),它是一种电子可调式分光装置,能够以固定的驱动频率瞬时监测许多波长。 AODLF有一个八度范围,通过改变RF选择其中心。 AODLF在红外线的分辨率为几千,可电子调节。 根据本发明的声光装置对于短光脉冲的检测和分析特别有用。

    Acousto-optic tunable filter
    233.
    发明授权
    Acousto-optic tunable filter 失效
    声光可调滤波器

    公开(公告)号:US4602342A

    公开(公告)日:1986-07-22

    申请号:US539022

    申请日:1983-10-04

    CPC classification number: G02F1/116 G01J3/42 G01J3/1256

    Abstract: An improved acousto-optic tunable filter infrared analyzer system useable in a variety of industrial and commercial combustion control applications includes an acousto-optic tunable filter having a crystalline material selected from the group consisting of mercurous chloride, mercurous bromide and mercurous iodide. Selectively polarized infrared radiation is passed at a predetermined plane of incidence to the crystal axis, which plane contains both the (110) and (001) axes. The system relies upon a narrow band pass tunable acousto-optic filter which is selectively tuned by predetermined rf frequency signals to selectively transmit the narrow band pass of interest which corresponds to a specific molecular species for identification and analysis. The system includes a microcomputer and associated memory function to measure and compare detected signals from an infrared detector which converts the filtered infrared signal to an electrical signal. The memory provides control signals for the computer and for controlling the sequence and frequency of rf energy applied to tune the filter. In this way, the near to far range infrared can be analyzed for absorption bands corresponding to predetermined molecular species such as combustion product gases, and a feedback signal generated to control the combustion process.

    Abstract translation: 可用于各种工业和商业燃烧控制应用的改进的声光可调滤波器红外分析仪系统包括具有选自氯化亚汞,溴化亚汞和碘化亚汞的结晶材料的声光可调谐滤光器。 选择性偏振的红外辐射以预定的入射角通过晶体轴,该平面包含(110)和(001)轴。 系统依赖于窄带通可调谐声光滤波器,其通过预定的频率信号选择性地调谐,以选择性地发送对应于特定分子种类的感兴趣的窄带通道用于识别和分析。 该系统包括微型计算机和相关联的记忆功能,用于测量和比较来自红外检测器的检测信号,将红外信号转换成电信号。 存储器为计算机提供控制信号,并控制用于调谐滤波器的rf能量的序列和频率。 以这种方式,可以分析对应于预定分子种类(例如燃烧产物气体)的吸收带的近距离红外线以及用于控制燃烧过程产生的反馈信号。

    Automated acousto-optic infrared analyzer system
    234.
    发明授权
    Automated acousto-optic infrared analyzer system 失效
    自动声光红外分析仪系统

    公开(公告)号:US4490845A

    公开(公告)日:1984-12-25

    申请号:US345123

    申请日:1982-02-02

    CPC classification number: G01J3/1256 G01J3/42 G01N21/3504

    Abstract: An automated acousto-optic tunable filter infrared analyzer system useable in a variety of industrial and commercial control applications. The system relies upon a narrow band pass tunable acousto-optic filter which is selectively tuned by predetermined rf frequency signals to selectively transmit the narrow band pass of interest which corresponds to a specific molecular species for identification and analysis. The system includes a microcomputer and associated memory function to measure and compare detected signals from an infrared detector which converts the filtered infrared signal to an electrical signal. The memory provides control signals for the computer and for controlling the sequence and frequency of rf energy applied to tune the filter. In this way, the near to mid range infrared can be analyzed for absorption bands corresponding to predetermined molecular species such as combustion product gases, and a feedback signal generated to control the combustion process.

    Abstract translation: 一种可用于各种工业和商业控制应用的自动声光可调滤波器红外分析仪系统。 系统依赖于窄带通可调谐声光滤波器,其通过预定的频率信号选择性地调谐,以选择性地发送对应于特定分子种类的感兴趣的窄带通道用于识别和分析。 该系统包括微型计算机和相关联的记忆功能,用于测量和比较来自红外检测器的检测信号,将红外信号转换成电信号。 存储器为计算机提供控制信号,并控制用于调谐滤波器的rf能量的序列和频率。 以这种方式,可以分析对应于预定分子种类(例如燃烧产物气体)的吸收带的近到中等范围的红外线,以及产生用于控制燃烧过程的反馈信号。

    Acousto-optic rf spectrum analysis method and apparatus
    235.
    发明授权
    Acousto-optic rf spectrum analysis method and apparatus 失效
    ACOUSTO-OPTIC RF SPECTRUM ANALYSIS METHOD AND APPARATUS

    公开(公告)号:US3667038A

    公开(公告)日:1972-05-30

    申请号:US3667038D

    申请日:1970-06-17

    CPC classification number: G02F1/116 G01J3/0213 G01J3/1256

    Abstract: An acousto-optic RF spectrum analysis method and apparatus is disclosed wherein radio frequency energy to be spectrum analyzed is employed to excite an acoustic wave in an optically anisotropic medium. A linearly polarized white light beam is collinearly diffracted on the acoustic wave in the anisotropic medium to diffract light of the first polarization and of a frequency related to the frequency of the acoustic wave into light of the second polarization. The diffracted output light is then analyzed to separate light of the first polarization from light of the second polarization. The separated light is spectrum analyzed to obtain a spectrum corresponding to the spectrum of the radio frequency energy to be analyzed.

    Abstract translation: 公开了一种声光RF频谱分析方法和装置,其中采用频谱分析的射频能量来激发光学各向异性介质中的声波。 线性偏振白光束在各向异性介质中的声波上共线衍射,以将第一偏振光和与声波的频率相关的频率衍射为第二偏振光。 然后分析衍射输出光以将第一偏振光与第二偏振光分离。 对分离的光进行频谱分析以获得与要分析的射频能量的频谱相对应的光谱。

    Acousto-optic light spectrum analysis
    236.
    发明授权
    Acousto-optic light spectrum analysis 失效
    光学光谱分析

    公开(公告)号:US3653765A

    公开(公告)日:1972-04-04

    申请号:US3653765D

    申请日:1970-06-17

    Inventor: HEARN JOHN R

    CPC classification number: G01J3/1256 G01J2003/2866 G02F1/113

    Abstract: An acousto-optic light spectrum analysis method and apparatus is disclosed. A linearly polarized unknown light beam to be spectrum analyzed is collinearly diffracted on an acoustic wave in an optically anisotropic medium to diffract light of the first linear polarization and of a frequency related to the frequency of the acoustic wave into light of a second polarization. The diffracted unknown light beam is polarization analyzed to separate the light of the second polarization from the light of the first polarization. The frequency of the acoustic wave is swept and the light of the second polarization is detected as a function of the sweep to obtain a spectrum analysis of the unknown light beam. The output spectrum of the unknown light beam is calibrated by switching a known light source through the acousto-optic system for calibration of the output spectrum.

    Abstract translation: 公开了一种声光光谱分析方法和装置。 待光谱分析的线性极化未知光束在光学各向异性介质中的声波上共线衍射,以将第一线性极化的光和与声波的频率相关的频率衍射为第二极化的光。 对衍射的未知光束进行偏振分析,以将第二偏振光与第一偏振光分离。 扫描声波的频率,并且根据扫描来检测第二极化的光,以获得未知光束的光谱分析。 通过将已知光源通过声光系统切换以校准输出光谱来校准未知光束的输出光谱。

    測定装置及び測定方法
    240.
    发明专利
    測定装置及び測定方法 有权
    测量设备和方法

    公开(公告)号:JPWO2013084621A1

    公开(公告)日:2015-04-27

    申请号:JP2013548146

    申请日:2012-10-29

    Abstract: 【課題】時間分解測定法により分子振動の緩和時間を高感度で測定することが可能な測定装置及び測定方法を提案すること。【解決手段】本開示に係る測定装置は、測定サンプルの所定の分子振動を励起するポンプ光及びストークス光と、所定の参照周波数により強度変調され、前記ポンプ光又は前記ストークス光と同一の波長を有するプローブ光と、に用いられるパルスレーザ光を射出する光源部と、前記光源部により生成された前記プローブ光を時間遅延させた上で、前記ポンプ光、前記ストークス光、及び、時間遅延後の前記プローブ光を前記測定サンプルへと導光するパルス制御部と、前記測定サンプルを透過した透過光又は前記測定サンプルからの反射光を検出する検出部と、を備え、前記測定サンプルの時間分解誘導ラマン利得分光測定又は時間分解誘導ラマン損失分光測定により、前記測定サンプルにおける前記分子振動の緩和時間を測定する。【選択図】図5

    Abstract translation: [问题]提供一种测量装置和能够通过时间分辨的测量方法测量的分子振动的弛豫时间以高灵敏度的测定方法。 根据本发明的测量装置包括:泵浦光和斯托克斯光的测量样品的激发预定的分子振动,是强度调制由预定基准频率,相同波长的泵浦光或斯托克斯光束 用于发射探测光,用于具有脉冲激光,在其上由所述光源单元所产生的探测光被时间延迟,泵浦光,斯托克斯光,并且,在时间延迟之后的光源单元 脉冲控制器,用于所述探针光引导至所述测量样品,并用于从所述透射光或测定试样检测反射光的检测器已经通过测定试样的测定试样,时间分辨感应传递 拉曼增益光谱法或时间分辨受激拉曼损失谱,来测量测定样品中的分子振动的弛豫时间。 点域5

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