公开(公告)号：EP0465350B1

公开(公告)日：1994-12-14

申请号：EP91401821.3

申请日：1991-07-02

Applicant: DILOR

Inventor： Delhaye, Michel ,  Da Silva, Edouard ,  Roussel, Bernard

IPC: G01J3/28 ,  G01J3/06

CPC classification number: G01J3/2803 ,  G01J3/0294 ,  G01J3/06 ,  G01J3/32 ,  G01J2003/066 ,  G01J2003/2826 ,  G01J2003/2833 ,  G01J2003/2893 ,  G01J2003/2896 ,  G01J2003/326

公开(公告)号：EP0324583B1

公开(公告)日：1994-10-26

申请号：EP89300188.3

申请日：1989-01-10

Applicant: WORLD GEOSCIENCE CORPORATION LIMITED

Inventor： Grant, Andrew Ian ,  Stevens, David Graham ,  Macpherson, Martyn Taylor

IPC: G01N21/64 ,  G01J3/443 ,  G01V9/00

CPC classification number: G01J3/44 ,  G01J3/2803 ,  G01J2003/066 ,  G01N21/64 ,  G01N2201/0214

公开(公告)号：EP0502413A3

公开(公告)日：1993-02-10

申请号：EP92103285.0

申请日：1992-02-26

Applicant: IMO INDUSTRIES Inc.

Inventor： Krupa, Robert J. ,  Owen, Edward E. ,  Shiller, Stanley L.

IPC: G01J3/06

CPC classification number: G01J3/06 ,  G01J2003/063 ,  G01J2003/066

Abstract: A scanning monochromator uses a pulse-driven micro-stepping motor (20) to drive a spectral-dispersion element (33) via a reduction-gear harmonic drive (21). The motor (20) is directly coupled to the input hub of the reduction-gear drive (21), and the output hub of the reduction-gear drive directly supports the spectral-dispersion element (33). By selecting a motor (20) with a great number of steps per revolution, and a harmonic drive (21) with a great reduction ratio, a resolution of 5 million pulsed steps is available, per single rotation of the output hub of the reduction-gear drive. This translates into more than 600,000 incremental angular-displacement steps over a usable 45° range of dispersion-element rotation.

Abstract translation: 扫描单色仪使用脉冲驱动微步进电动机（20）经由减速齿轮谐波驱动器（21）驱动光谱色散元件（33）。 马达（20）直接联接到减速齿轮传动装置（21）的输入轮毂上，并且减速齿轮传动装置的输出轮毂直接支撑分光分散元件（33）。 通过选择每转大量步进的电动机（20）和具有大的减速比的谐波驱动（21），可以在减速机的输出轮毂的每次旋转中提供500万个脉冲步进的分辨率， 齿轮传动。 这可以在可用的45°范围的分散体旋转中转化为超过60万个增量角位移步长。

公开(公告)号：EP0344783A2

公开(公告)日：1989-12-06

申请号：EP89109948.3

申请日：1989-06-01

Applicant: THE PERKIN-ELMER CORPORATION

Inventor： Wuest, Charles E. ,  Collins, John B.

IPC: G01J3/28

CPC classification number: G01J3/28 ,  G01J3/18 ,  G01J3/32 ,  G01J2003/063 ,  G01J2003/066 ,  G01N21/73 ,  G01N21/74

Abstract: Iterative compensation of drift of peak positions of spectral lines in a spectral monochromator including a grating, a detector of spectral fractions of a spectral band, a stepper motor for varying relative orientation of the grating and the detector, and a computer. A series of computer-defined spectral windows each encompasses one spectral band and has a nominal spectral position and an initial spectral center. Each window is scanned such as to determine a peak spectral position. Calculations are made for a spectral offset of the peak position from the initial center for each corresponding window, an average of the offsets for the peaks as a linear function of window position, and a revised spectral center for each window equal to the initial center plus the average offset for the window position determined from the linear function. Each window is shifted correspondingly. The step of successively scanning through each window is repeated such as to determined a new peak position for each corresponding band, whereby each new peak position is maintained near the spectral center of each corresponding window.

Abstract translation: 在包括光栅的光谱单色仪中的谱线的峰位漂移的迭代补偿，光谱带的光谱分数的检测器，用于改变光栅和检测器的相对取向的步进电机以及计算机。 一系列计算机定义的光谱窗口各自包含一个光谱带，并具有标称光谱位置和初始光谱中心。 扫描每个窗口以确定峰值光谱位置。 对于每个对应窗口的峰值位置与初始中心的频谱偏移进行计算，作为窗口位置的线性函数的峰值的偏移的平均值以及等于初始中心加上的每个窗口的修正的频谱中心 从线性函数确定的窗口位置的平均偏移量。 每个窗口相应移动。 重复连续扫描每个窗口的步骤，例如为每个对应的频带确定新的峰值位置，由此每个新的峰值位置保持在每个对应窗口的频谱中心附近。

公开(公告)号：EP0324583A2

公开(公告)日：1989-07-19

申请号：EP89300188.3

申请日：1989-01-10

Applicant: WORLD GEOSCIENCE CORPORATION LIMITED

Inventor： Grant, Andrew Ian ,  Stevens, David Graham ,  Macpherson, Martyn Taylor

IPC: G01N21/64 ,  G01J3/443 ,  G01V9/00

CPC classification number: G01J3/44 ,  G01J3/2803 ,  G01J2003/066 ,  G01N21/64 ,  G01N2201/0214

Abstract: Apparatus for detecting an anomaly, (e.g the presence of a hydrocarbon seep) at or near a water or land surface comprises means for generating a beam, preferably a pulsed beam, of primary light radiation, preferably ultra-violet light, and directing the beam towards the surface. The beam is sufficiently intense and of such a spectral composition that the beam causes the anomaly, if present, to emit secondary light radiation. The apparatus also comprises means for collecting the secondary light radiation, or means for collecting solar induced secondary light radiation, spectral analysis means for analysing the spectrum of the secondary radiation, and a high resolution, multi-element digitising detector for recovering the analysed secondary radiation. The detector has a plurality of detection channels positioned across the spectrum of the basckscattered primary radiation and emitted secondary radiation, the channels being software configurable and under the control of a digitally addressable computer-operated controller. The concentration of used channels across the plurality of channels is adjustable and increasable in the regions of the spectrum of greatest interest and decreasable in the regions of least interest.

Abstract translation: 用于检测水或陆面表面或附近的异常（例如，碳氢化合物渗漏的存在）的装置包括用于产生主要光辐射（优选紫外光）的束（优选脉冲光束）的装置，以及引导光束 朝向表面。 光束是足够强烈的，并且具有这样的光谱组成，即光束导致异常（如果存在）发射次级光辐射。 该装置还包括用于收集二次光辐射的装置或用于收集太阳能诱发的次级光辐射的装置，用于分析次级辐射的光谱的光谱分析装置和用于恢复分析的二次辐射的高分辨率多元数字化检测器 。 检测器具有多个检测通道，该通道位于基底分散的初级辐射和发射的次级辐射的频谱上，该通道是软件可配置的并且在数字可寻址的计算机操作的控制器的控制下。 跨越多个通道的所使用的通道的集中在最感兴趣的范围的区域中是可调节的并且可以在最不感兴趣的区域中减小。

公开(公告)号：EP0277720A3

公开(公告)日：1989-05-10

申请号：EP88300390.7

申请日：1988-01-19

Applicant: BARSPEC LIMITED

Inventor： Barshad,Yoav

IPC: G01J3/06 ,  G01J3/42 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/06 ,  G01J3/1838 ,  G01J3/2889 ,  G01J2001/444 ,  G01J2003/062 ,  G01J2003/066 ,  G01J2003/2866

Abstract: A system for rapid-scan spectral analysis comprising a concave holographic diffraction grating (18) continuously rotated at a substantially constant angular velocity to provide a rapid scanning monochromator (a monochromator is used to transfer nominal regions of wavelengths out of the continuous light source). The unique sampling circuitry uses an optical shaft encoder (42). The angular velocity and angular acceleration of the grating (18) are calculated from time measurements, just before the first wavelength of interest falls on the detector. This information is used to control the Analog to Digital converter sampling rate across the region of interest. The samples as a function of time are stored in a memory buffer (58) so that each data point corresponds to a wavelength.

公开(公告)号：EP0207498A3

公开(公告)日：1988-04-27

申请号：EP86108951

申请日：1986-07-01

Applicant: SHIMADZU CORPORATION

Inventor： Fukuma, Toshiaki

IPC: G01J03/28 ,  G01J03/06 ,  G01J03/42

CPC classification number: G01J3/28 ,  G01J2003/062 ,  G01J2003/066

Abstract: A spectrophotometer wherein the diffraction grating is driven directly by a pulse motor and the wavelength of the monochromatic light used for measurement is calculated by a data processor from the amount of rotation of the pulse motor. The data processor is provided with an Input unit for setting a parameter corresponding to the difference between the nominal and actual grating constants of the diffraction grating and so arranged as to calculate the wavelength in accordance with the nominal grating constant having been modified with the parameter set through the Input unit.