基于四波混频扫描式超短激光脉冲时域对比度测量仪

    公开(公告)号:CN107063480A

    公开(公告)日:2017-08-18

    申请号:CN201710217764.X

    申请日:2017-04-05

    Inventor: 刘军 王鹏 申雄

    CPC classification number: G01J11/00 G01J2011/005

    Abstract: 一种基于四波混频扫描式超短激光脉冲时域对比度测量仪,包括分束片、短通滤波片、第一平面反射镜、第二平面反射镜、第三平面反射镜、第四平面反射镜、电动平移台、第五平面反射镜、第一柱面镜反射、第二柱面镜反射镜、三阶非线性晶体、衰减片、滤波片、探测器和计算机;通过分束片将激光分解为两束频率不同的激光脉冲,这两束频率不同的激光脉冲以一定角度入射聚焦到三阶非线性材料上,产生两束与入射激光频率不同且传播方向不同的四波混频(拉曼)信号光束,产生的信号光强度直接反映了入射激光的时域对比度。本发明直接获得与入射光束频率不重合的四波混频信号光,装置更加简单,稳定性更高,所使用的元件和非线性介质材料经济便宜。

    一种集成化的频率分辨光学开关法超短脉冲测试仪

    公开(公告)号:CN107884078A

    公开(公告)日:2018-04-06

    申请号:CN201610866144.4

    申请日:2016-09-29

    CPC classification number: G01J11/00 G01J2011/005

    Abstract: 本发明公开了一种集成化的频率分辨光学开关法超短脉冲测试仪。它包括依次设置的小孔光阑、可调节衰减片、柱面镜、双棱镜、反射镜一、反射镜二、标准具、倍频晶体、光学狭缝装置、滤光片和CCD相机;其中,小孔光阑、可调节衰减片、柱面镜、双棱镜和反射镜一同光轴;反射镜二、标准具、倍频晶体、光学狭缝装置、滤光片和CCD相机同光轴;反射镜一与反射镜二这两块反射镜的反射镜面互成90度角;所有部件均设置在一个封装盒内,封装盒内设笼式支架,所有部件均安装在笼式支架上。本发明的集成化的频率分辨光学开关法超短脉冲测试仪,测试速度快,测量精度高,测量结果更准确,稳定性好。

    STREAK TUBE
    6.
    发明申请

    公开(公告)号:US20140285085A1

    公开(公告)日:2014-09-25

    申请号:US14354942

    申请日:2012-08-07

    Abstract: A steak tube has a container with an entrance plate and an output plate, a photocathode disposed in the container and configured to emit electrons according to light to be measured, the light having been incident through the entrance plate, and a sweep electrode disposed in the container, having a pair of deflection plates for generating an electric field and a connection lead connected to each deflection plate, and configured to sweep the electrons in a sweep direction along the output plate. An opposing of edges of the deflection plate in a direction of the output plate are formed so as to extend in a direction from the entrance plate to the output plate, the connection lead has a first connection portion electrically connected to the deflection plate, and the first connection portion is connected to the opposing of edges.

    Abstract translation: 牛排管具有容器,该容器具有入口板和输出板,光电阴极设置在容器中并且被配置为根据被测量的光发射电子,入射到入射板的光和设置在其中的扫掠电极 容器,具有用于产生电场的一对偏转板和连接到每个偏转板的连接引线,并且被配置为沿着输出板沿扫掠方向扫掠电子。 沿着输出板的方向偏转板的边缘相对地形成为从从入口板向输出板的方向延伸,连接引线具有电连接到偏转板的第一连接部分,并且 第一连接部分连接到边缘的相对侧。

    Apparatus and method for monitoring characteristics of pharmaceutical compositions during preparation in a fluidized bed
    7.
    发明申请
    Apparatus and method for monitoring characteristics of pharmaceutical compositions during preparation in a fluidized bed 审中-公开
    用于在流化床制备过程中监测药物组合物的特征的装置和方法

    公开(公告)号:US20040057650A1

    公开(公告)日:2004-03-25

    申请号:US10399575

    申请日:2003-09-15

    Inventor: Staffan Folestad

    Abstract: The present invention relates to a method and apparatus for monitoring characteristics of a pharmaceutical composition during preparation thereof by in the process vessel (1) of a fluidized bed apparatus, wherein a measuring device (11, 11null) performs a spectometric measurement on the pharmaceutical composition in a wetting zone (B) into which a processing fluid is injected. The method also comprises the generic use of an optical probe device in spectrometric measurements, the probe device being capable of transmitting a two-dimensional image of radiation emitted from a monitoring area in the process vessel (1).

    Abstract translation: 本发明涉及一种在流化床装置的处理容器(1)中用于监测药物组合物制备过程中特性的方法和装置,其中测量装置(11,11')对药物组合物进行光谱测量 润湿区(B)中的组合物,其中注入有处理流体。 该方法还包括在光谱测量中通常使用光学探针装置,探针装置能够传输从处理容器(1)中的监测区域发射的辐射的二维图像。

    Optical waveform observing apparatus
    8.
    发明授权
    Optical waveform observing apparatus 失效
    光波形观测装置

    公开(公告)号:US4945224A

    公开(公告)日:1990-07-31

    申请号:US291825

    申请日:1988-12-29

    CPC classification number: G01J11/00 H04N5/217 G01J2011/005

    Abstract: Optical waveform observing apparatus including a sampling streak tube to which is applied an incident light beam having a waveform to be observed. An electron beam corresponding to the incident light beam is repetitively deflected in the streak tube, in response to a repetitive deflecting trigger signal, to sample the electron beam. The repetitive deflection of the electron beam is periodically stopped for a first time period. An integration circuit integrates data outputted by the streak tube. A subtraction circuit subtracts the integration of streak tube data outputted during the first time period from the integration of streak tube data outputted during a second time period when the repetitive beam deflection is not stopped, so that background noise and dark currents are not included in the subtraction result.

    Abstract translation: 光波形观测装置包括采样条纹管,对其进行观察波形的入射光束。 对应于入射光束的电子束响应于重复的偏转触发信号在条纹管中重复偏转,以对电子束进行采样。 电子束的重复偏转在第一时间周期性地停止。 积分电路集成了条纹管输出的数据。 减法电路减去在第一时间段期间输出的条纹管数据的积分从在第二时间段期间输出的条纹管数据的积分,当不停止重复光束偏转时,使得背景噪声和暗电流不包括在 减法结果。

    Light waveform measuring device including a streak camera
    10.
    发明授权
    Light waveform measuring device including a streak camera 失效
    光波形测量装置包括条纹相机

    公开(公告)号:US5032714A

    公开(公告)日:1991-07-16

    申请号:US460009

    申请日:1990-01-02

    CPC classification number: G01J11/00 G01N21/6408 G01J2011/005 G01J9/04

    Abstract: Laser sources produce two light beams which are different in frequency and at least one of which is a pulse beam. The two light beams are subjected to sum frequency mixing in a non-linear optical element and a resultant sum frequency beam is applied to a specimen as an exciting pulse beam. A pulse beam separated from the sum frequency beam and synchronized therewith is detected by a photodetector. A measuring means measures a waveform of fluorescence light emitted from the specimen using an output of the photodetector as a measurement starting reference signal. According to one embodiment, the device operates in a single photon counting mode and the measuring means counts repeatedly an elapsed time from the detection of the measurement start reference signal to the detection of the fluorescence light for every divided section of the elapsed time.

    Abstract translation: 激光源产生频率不同的两个光束,其中至少一个是脉冲光束。 将两个光束在非线性光学元件中进行和频混合,并将所得到的和频波束作为激发脉冲光束施加到样本。 由和频波束分离并与其同步的脉冲光束由光电检测器检测。 测量装置使用光电检测器的输出作为测量开始参考信号来测量从样本发射的荧光的波形。 根据一个实施例,设备以单光子计数模式工作,并且测量装置重复计算从测量开始参考信号的检测到对经过时间的每个分割部分的荧光检测的经过时间。

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