Laser Induced Breakdown Spectroscopy (LIBS) Apparatus Based on High Repetition Rate Pulsed Laser
    134.
    发明申请
    Laser Induced Breakdown Spectroscopy (LIBS) Apparatus Based on High Repetition Rate Pulsed Laser 有权
    基于高重复脉冲激光的激光诱导击穿光谱(LIBS)装置

    公开(公告)号:US20170067782A1

    公开(公告)日:2017-03-09

    申请号:US15166374

    申请日:2016-05-27

    CPC classification number: G01J3/443 G01J3/0208 G01J3/06 G01J3/10 G01J3/28

    Abstract: This invention discloses a laser induced breakdown spectroscopy (LIBS) apparatus based on a high repetition rate pulsed laser. The laser produces a train of laser pulses at a high repetition rate in the kHz or even higher range. When the laser beam hits the sample, it generates several thousands of micro-plasma emissions per second. Synchronized miniature CCD array optical spectrometer modules collect the LIBS signal from these micro-plasma emissions. By adjusting the integration time of the spectrometer to cover a plurality of periods of the laser pulse train, the spectrometer integrates the LIBS signal produced by this plurality of laser pulses. Hence the intensity of the obtained LIBS spectrum can be greatly improved to increase the signal-to-noise ratio (SNR) and lower the limit of detection (LOD). In addition, the influence of pulse to pulse variation of the laser is minimized since the obtained LIBS spectrum is the spectrum of a plurality of micro-plasma emissions produced by a plurality of laser pulses. The high repetition rate laser also makes it possible to measure the LIBS signal at a short and a long integration time and mathematically combining the two spectra to obtain a LIBS spectrum with enhanced dynamic range.

    Abstract translation: 本发明公开了一种基于高重复脉冲激光的激光诱导击穿光谱(LIBS)装置。 激光器在kHz或甚至更高的范围内以高重复率产生一串激光脉冲。 当激光束撞击样品时,它每秒产生数千个微等离子体排放。 同步微型CCD阵列光谱仪模块从这些微等离子体发射中收集LIBS信号。 通过调整光谱仪的积分时间来覆盖激光脉冲串的多个周期,光谱仪将由多个激光脉冲产生的LIBS信号进行积分。 因此,可以大大提高所获得的LIBS频谱的强度,以增加信噪比(SNR)并降低检测极限(LOD)。 此外,由于获得的LIBS光谱是由多个激光脉冲产生的多个微等离子体发射的光谱,所以激光器的脉冲对脉冲变化的影响被最小化。 高重复率激光器还使得可以在短和长的积分时间测量LIBS信号并且数学地组合两个光谱以获得具有增强的动态范围的LIBS光谱。

    Monochromator comprising vibration resistant moveable optical elements
    135.
    发明授权
    Monochromator comprising vibration resistant moveable optical elements 有权
    单色器包括抗振可移动光学元件

    公开(公告)号:US09551615B2

    公开(公告)日:2017-01-24

    申请号:US14732170

    申请日:2015-06-05

    Abstract: A monochromator has at least one optical grating which is rotatable in relation to incident light of a source of light, a drive unit to rotate the optical grating by a connected drive rod around a longitudinal axis, and a control unit to control the drive unit and thereby the rotation of the optical grating. The drive unit further has a first damping element with at least one electrical conductive surface, and a second damping element which provides at least one magnetic field having a magnetic axis which penetrates the electrical conductive surface. One of the first and second damping elements is fixed to the drive rod and is rotatable along with the drive rod around the longitudinal axis thereof in relation to the other one of the second or first damping element.

    Abstract translation: 单色仪具有至少一个相对于光源的入射光可旋转的光栅;驱动单元,用于通过连接的驱动杆围绕纵轴旋转光栅;以及控制单元,用于控制驱动单元和 从而光栅的旋转。 驱动单元还具有带有至少一个导电表面的第一阻尼元件和提供至少一个具有穿过导电表面的磁轴的磁场的第二阻尼元件。 第一和第二阻尼元件中的一个被固定到驱动杆,并且可以与驱动杆一起围绕其纵向轴线相对于第二或第一阻尼元件中的另一个旋转。

    Rotary drive mechanism and light dispersion system having the same
    136.
    发明授权
    Rotary drive mechanism and light dispersion system having the same 有权
    旋转驱动机构和具有相同的光散射系统

    公开(公告)号:US09515591B2

    公开(公告)日:2016-12-06

    申请号:US13739818

    申请日:2013-01-11

    Inventor: Kazumi Yokota

    CPC classification number: H02P8/32 G01J3/027 G01J3/06 G02B26/007 H02P8/12 H02P8/38

    Abstract: A rotary drive mechanism provides a mechanism for driving light dispersing element having a high wavelength-moving speed and a high wavelength-resolving power. The rotary drive mechanism includes a stepper motor as a rotary drive source; an update information setter for setting update information corresponding to the amount of change by which the motor should be rotated at a drive timing indicated by an input signal; a position information updater for holding position information which specifies the rotational position of the motor and for updating the position information based on the update information from the update information setter; a winding excitation state determiner for determining the amount or ratio of electric currents passed through the windings of the motor based on the updated position information provided from the position information updater; and a drive controller for controlling the electric currents based on a control signal from the winding excitation state determiner.

    Abstract translation: 旋转驱动机构提供用于驱动具有高波长移动速度和高波长分辨能力的光分散元件的机构。 旋转驱动机构包括作为旋转驱动源的步进电机; 更新信息设定器,用于根据由输入信号指示的驱动定时设置与所述电动机应该旋转的变化量相对应的更新信息; 位置信息更新器,用于保持位置信息,该位置信息指定电动机的旋转位置,并根据来自更新信息设定器的更新信息来更新位置信息; 绕组激励状态确定器,用于基于从所述位置信息更新器提供的更新的位置信息来确定通过所述电动机的绕组的电流的量或比率; 以及驱动控制器,用于基于来自绕组激励状态确定器的控制信号来控制电流。

    Data knitting tandem dispersive range monochromator
    138.
    发明授权
    Data knitting tandem dispersive range monochromator 有权
    数据编织串联色散范围单色仪

    公开(公告)号:US09395245B2

    公开(公告)日:2016-07-19

    申请号:US14603700

    申请日:2015-01-23

    Abstract: Aspects of a tandem dispersive range monochromator and data knitting for the monochromator are described herein. In one embodiment, the monochromator includes a tandem diffraction grating, a grating drive motor that rotates the tandem diffraction grating to provide, by diffraction of broadband light, first dispersed wavelengths of light and second dispersed wavelengths of light, a detector that detects a first reflection from the first dispersed wavelengths of light and a second reflection from the second dispersed wavelengths of light, and processing circuitry that knits together data values from the first reflection and data values from the second reflection to provide a spectrum of combined data values. By using a tandem diffraction grating having different dispersive surfaces, measurements of relatively high precision and quality may be taken throughout a wider spectral range, and the measurements may be knitted together to provide a spectrum of combined data values.

    Abstract translation: 本文描述了用于单色仪的串联色散范围单色仪和数据编织的方面。 在一个实施例中,单色仪包括串联衍射光栅,光栅驱动马达,其旋转串联衍射光栅,以通过宽带光的衍射提供第一分散的光波长和第二分散波长的光,检测器,其检测第一反射 来自第一分散波长的光和来自第二分散波长的光的第二反射,以及将来自第二反射的数据值和来自第二反射的数据值编织在一起的数据值的处理电路,以提供组合数据值的频谱。 通过使用具有不同分散表面的串联衍射光栅,可以在更宽的光谱范围内进行相对高的精度和质量的测量,并且测量可以被编织在一起以提供一组合并的数据值。

    SPECTRAL MICROSCOPY DEVICE
    139.
    发明申请
    SPECTRAL MICROSCOPY DEVICE 审中-公开
    光谱显微镜装置

    公开(公告)号:US20160123813A1

    公开(公告)日:2016-05-05

    申请号:US14891614

    申请日:2014-05-21

    Inventor: Masafumi Kyogaku

    Abstract: A spectral microscopy device includes a spectral detecting unit including a light source that is capable of controlling an output wavelength, a microscope section that is provided with an observation area that is illuminated with light output from the light source, and a signal detector that detects light from the observation area as spectral data; a moving unit configured to move the observation area; and a controller that performs a control operation to allow the spectral detecting unit and the moving unit to move in response to each other. The spectral microscopy device is controlled so that switching between different measurement conditions is performed at an observation area movement time in which the observation area is moved by the moving unit and measurement is performed and at an observation area movement stoppage time in which the observation area is fixed and measurement is performed.

    Abstract translation: 光谱显微镜装置包括:光谱检测单元,其包括能够控制输出波长的光源;显微镜部分,其设置有从光源输出的光照射的观察区域;以及信号检测器,其检测光 从观测区作为光谱数据; 移动单元,被配置为移动所述观察区域; 以及控制器,其执行控制操作以允许所述光谱检测单元和所述移动单元彼此响应地移动。 控制光谱显微镜装置,使得在观察区域移动时间,在观察区域移动时通过移动单元进行测量并且在观察区域移动停止时间内进行不同测量条件之间的切换,其中观察区域是观察区域 进行固定和测量。

    TOOL FOR POSITIONING A SCANNING DEVICE
    140.
    发明申请
    TOOL FOR POSITIONING A SCANNING DEVICE 审中-公开
    用于定位扫描装置的工具

    公开(公告)号:US20160084706A1

    公开(公告)日:2016-03-24

    申请号:US14858745

    申请日:2015-09-18

    Inventor: ANTONIO MACCARI

    CPC classification number: G01J3/0202 G01J3/0289 G01J3/0291 G01J3/06 G01J3/50

    Abstract: A tool for positioning a scanning device provided with a spectrometer comprises: a support having a resting zone suitable for being rested onto a surface, a fixing arrangement for fixing the scanning device to the tool. The support is so dimensioned as to leave uncovered an operative zone in which the spectrometer is movable for acquiring an image provided on a substrate, so that the spectrometer can acquire the image while the support is resting directly on the substrate.The tool further comprises a vision device comprising a video camera for recording the image and a control unit that controls the video camera, the control unit being programmed to recognise pre-established points of the image recorded by the video camera.

    Abstract translation: 用于定位设置有光谱仪的扫描装置的工具包括:具有适于搁置在表面上的静止区域的支撑件,用于将扫描装置固定到工具的固定装置。 该支撑件的尺寸被设计成不覆盖操作区域,其中光谱仪可移动以获取设置在基板上的图像,使得光谱仪可以在支撑件直接搁置在基板上的同时获取图像。 该工具还包括视觉装置,其包括用于记录图像的摄像机和控制摄像机的控制单元,控制单元被编程为识别由摄像机记录的图像的预先建立的点。

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