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公开(公告)号：CN1007010B
公开(公告)日：1990-02-28
申请号：CN86103504
申请日：1986-05-22
Applicant: 株式会社岛津制作所
Inventor： 福间俊明
CPC classification number: G01J3/28 , G01J2003/062 , G01J2003/066
Abstract: 本发明涉及使电机减速，并直接使衍射光栅旋转的分光光度计。当设衍射光栅的间距基准值为N条/毫米时，可以从N±n条/毫米(n＝0，1，2……)的2n+1种之中，任意选择光栅间距数据，以作为运算的参变量，而此参变量则是从光栅驱动电机的旋转量计算出波长的计算方式所设定的。通过实际的校正动作，可以确定此2n+1种光栅间距之中的一种间距。根据本发明，即使采用结构简单的直接驱动式分光光度计，也能提供可测定高精度波长的产品。
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公开(公告)号：CN105628201A
公开(公告)日：2016-06-01
申请号：CN201511019826.3
申请日：2015-12-30
Applicant: 华中科技大学
CPC classification number: G01J3/2823 , G01J2003/066 , G06T7/00 , G06T2207/10048
Abstract: 本发明公开了一种时敏目标图谱结合的测谱方法，包括下述步骤：(1)获取疑似目标的红外图像；(2)根据红外图像获得所述疑似目标的前一帧位置和速度信息，并根据前一帧位置和速度信息对当前帧目标位置进行预测，获得当前帧位置；(3)根据所述疑似目标的当前位置，将疑似目标的当前位置调整为所述红外图像的中心位置；并获得所述疑似目标的光谱。对于面目标确定疑似目标要害点位置，通过预测算法、PID算法控制伺服系统对准要害点位置。当偏差为零后根据目标大小作相应的扫描窗口以克服目标光谱测不到、测不准的情况。对于点目标，通过对目标区域作固定大小的扫描窗口获得目标光谱特征。
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公开(公告)号：CN86103504A
公开(公告)日：1986-12-31
申请号：CN86103504
申请日：1986-05-22
Applicant: 株式会社岛津制作所
Inventor： 福间俊明
IPC: G01J3/12
CPC classification number: G01J3/28 , G01J2003/062 , G01J2003/066
Abstract: 本发明涉及使电机减速，并直接使衍射光栅旋转的分光光度计。当设衍射光栅的间距基准值为N条/毫米时，可以从N±n条/毫米(n＝0，1，2……)的2n+1种之中，任意选择光栅间距数据，以作为运算的参变量，而此参变量则是从光栅驱动电机的旋转量计算出波长的计算方式所设定的。通过实际的校正动作，可以确定此2n+1种光栅间距之中的一种间距。根据本发明，即使采用结构简单的直接驱动式分光光度计，也能提供可测定高精度波长的产品。
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公开(公告)号：CN107870151A
公开(公告)日：2018-04-03
申请号：CN201710883089.4
申请日：2017-09-26
Applicant: 伯托科技有限公司
IPC: G01N21/27
CPC classification number: G01N21/31 , G01J3/027 , G01J3/06 , G01J3/28 , G01J2003/066 , G01N21/63 , G01N21/27
Abstract: 在用于样品的光学性质的频谱分辨测量的方法中，样品布置在测量位置处；并且使用光源生成光。在第一光学路径中向样品传送作为激发光的光的频谱分量。在第二光学路径中向检测器传送已经由样品发射或透射的光。可调谐单色仪布置在第一光学路径中和/或第二光学路径中。通过使可调谐单色仪的频谱通道范围偏移而在有效频谱范围（SPE）之上记录发射光或透射光的频谱。所述方法的特征在于，使用以具有可指定脉冲频率的光脉冲的形式的光，在于以偏移速度连续地从初始波长向结束波长偏移可调谐单色仪的频谱通道范围以用于记录频谱，以及在于经由控制而使光的脉冲频率与频谱通道范围的偏移速度同步，使得发射光或透射光的多个测量发生在对应多个频谱支持点（ST1、ST2、STn）处的有效频谱范围内。
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公开(公告)号：US20240219232A1
公开(公告)日：2024-07-04
申请号：US18335269
申请日：2023-06-15
Applicant: Jacov Tutavac , Dubravko Babic
Inventor： Jacov Tutavac , Dubravko Babic
CPC classification number: G01J3/0294 , B64G1/66 , G01J3/0208 , G01J3/0275 , G01J3/06 , G01J3/12 , G01J3/42 , G01J2003/066 , G01J2003/1213
Abstract: A light detection module has N optical channels, each with an optical filter, a detector, and an amplifier; and an N×1 switch with N input ports each connected to one corresponding output port of each channel to receive an amplified detector output corresponding to a filtered optical intensity incident on that detector. The switch cycles between channels, connecting each amplified detector output in turn to the output port. An ADC samples a time dependent optical intensity signal from the switch, generating a corresponding ADC digital signal output. A microcontroller, connected to the N×1 switch and the ADC, controls acquisition by the ADC to provide a digital voltage data stream from each channel; making the average optical intensity value characterizing the voltage data stream available from each channel at a digital output port of the microcontroller, as N data values, characterizing the light incident on the N channels of the module.
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Patent Agency Ranking
公开(公告)号：US20170108378A1
公开(公告)日：2017-04-20
申请号：US15292244
申请日：2016-10-13
Inventor： Lianqing Zhu , Wei He , Xiaoping Lou , Feng Liu , Mingli Dong , Fei Luo , Wei Zhuang
CPC classification number: G01J3/1895 , G01J3/0208 , G01J3/027 , G01J3/06 , G01J3/28 , G01J2003/064 , G01J2003/066 , G02B6/02076 , G02B26/0816 , G02F2/00
Abstract: A fiber grating demodulation system for enhancing spectral resolution by finely adjusting an imaging focus mirror, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, a linear array detector. The laser pump source, the wavelength division multiplexer, the fiber Bragg grating are connected in sequence, the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating, a reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror, the light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector.
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公开(公告)号：US4779216A
公开(公告)日：1988-10-18
申请号：US837438
申请日：1986-03-07
Applicant: John B. Collins
Inventor： John B. Collins
CPC classification number: G01J3/28 , G01J2003/066 , G01J2003/2866
Abstract: A method for calibrating a monochromator to compensate for mechanical imperfections in its diffraction grating and grating drive assembly employs a two stage interactive procedure which permits the use of small (0.2 nm) spectral regions for the identification of emission lines. An iterative, self-consistent, discrete Fourier transform is used for the determination of multiple positioning correction terms. When the Fourier calculations are completed, the results of the calibration procedure are presented by the system to the analyst for acceptance. If accepted, the positioning error of the primary calibration line is measured, stored and used by the system to maintain a zero centered distribution of positioning errors each time the monochromator is reinitialized.
Abstract translation: 用于校准单色仪以补偿其衍射光栅和光栅驱动组件中的机械缺陷的方法采用两级交互式过程，其允许使用小（0.2nm）光谱区域来识别发射线。 迭代，自相一致的离散傅里叶变换用于确定多个定位校正项。 当傅里叶计算完成时，校准程序的结果由系统提交给分析师进行验收。 如果接受，主要校准线的定位误差由系统测量，存储和使用，以便在每次单色仪重新初始化时保持定位误差的零中心分布。
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公开(公告)号：US5255071A
公开(公告)日：1993-10-19
申请号：US406726
申请日：1989-09-13
Applicant: Fred H. Pollak , Hong-En Shen
Inventor： Fred H. Pollak , Hong-En Shen
CPC classification number: G01N21/1717 , G01J1/24 , G01J2003/063 , G01J2003/066 , G01N2021/1725 , G01N21/55 , G01N2201/0695 , G01N2201/126
Abstract: A method and apparatus for determining the characteristics of materials, particularly of semi-conductors, semi-conductor heterostructures and semi-conductor interfaces by the use of photoreflectance, in which monochromatic light and an acousto-optically modulated light beam reflected from the sample is detected to produce a d.c. signal and an a.c. signal, whereby the d.c. signal is applied to one input of a computer and the a.c. signal is used with another input of the computer which controls the light intensity of the monochromatic light impinging on the sample to maintain the d.c. signal substantially constant. The modulation frequency of the modulated pump beam and/or the wavelength of the monochromatic light can also be varied by the computer. Information about trap times can be obtained by determining the dependence of the in-phase signal on the pump modulating frequency, respectively.
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公开(公告)号：US5164786A
公开(公告)日：1992-11-17
申请号：US720708
申请日：1991-06-25
Applicant: Michel Delhaye , Edouard Da Silva , Bernard Roussel
Inventor： Michel Delhaye , Edouard Da Silva , Bernard Roussel
CPC classification number: G01J3/2803 , G01J3/06 , G01J2003/066 , G01J2003/2826 , G01J2003/2833 , G01J2003/2893 , G01J2003/2896 , G01J2003/326 , G01J3/0294 , G01J3/32
Abstract: The invention relates to a spectrometry installation comprising an inlet, optical fiber means suitable for receiving an inlet beam and delivering a spectrally dispersed image of the beam which image is limited to a selected spectral band, a multi-channel detection module receiving said spectral image, and processor means. The optical filter means are provided with a deflector stage. Control means are associated with the optical deflector means to define the spectral band in terms of center frequency and band width, and control means are associated therewith for displacing the spectral image over the detection module. An electronic control unit is provided to control the control means and to control the processor means in a plurality of operating modes, each of which comprises joint control of the selected spectral band, of the displacement of the spectral image, and of the processor means, for the purpose of selectively using a particular set of detector components.
Abstract translation: 本发明涉及一种光谱测量装置，其包括入口，适于接收入射光束的光纤装置，并将该光束的光谱分散图像传送到所选择的光谱带，多通道检测模块接收所述光谱图像， 和处理器装置。 滤光器装置设置有偏转器级。 控制装置与光学偏转器装置相关联以根据中心频率和带宽限定光谱带，并且控制装置与其相关联，用于使检测模块上的光谱图像移位。 提供电子控制单元以控制控制装置并且以多个操作模式来控制处理器装置，每个操作模式包括所选频谱带的联合控制，频谱图像的位移以及处理器装置， 以便选择性地使用特定的一组检测器部件。
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公开(公告)号：US5096295A
公开(公告)日：1992-03-17
申请号：US664592
申请日：1991-03-01
Applicant: Robert J. Krupa , Edward E. Owen , Stanley L. Shiller
Inventor： Robert J. Krupa , Edward E. Owen , Stanley L. Shiller
IPC: G01J3/06
CPC classification number: G01J3/06 , G01J2003/063 , G01J2003/066
Abstract: In its preferred embodiment, a scanning monochromator uses a pulse-driven micro-stepping motor to drive a spectral-dispersion element via a reduction-gear harmonic drive. The motor is directly coupled to the input hub of the reduction-gear drive, and the output hub of the reduction-gear drive directly supports the spectral-dispersion element. By selecting a motor with a great number of steps per revolution, and a harmonic drive 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.degree. range of dispersion-element rotation.
Abstract translation: 在其优选实施例中，扫描单色仪使用脉冲驱动微步进电机经由减速齿轮谐波驱动来驱动频谱色散元件。 电机直接连接在减速齿轮传动装置的输入轮毂上，减速齿轮传动装置的输出轮毂直接支撑分光元件。 通过选择每转数很多的电机，以及减速比大的谐波驱动器，减速齿轮传动的输出轮毂每旋转一次就可以获得500万次脉冲步进的分辨率。 这在可用的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。
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