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near infrared
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  near infrared
The acousto-optic spectrometer of the near infrared range, which is a part of the spectrometer SPICAM onboard the Mars-Express spacecraft, began to operate in the orbit of Mars in January 2004.
      
The spectral features of leaf reflectance in the visible and near infrared regions are briefly considered.
      
The sole spectral feature in the near infrared, observed at some longitudes, is a possible pyroxene absorption band at 0.95 μm, which can be used to investigate the abundance and distribution of FeO in the regolith.
      
The near infrared is an optimum spectral range for detection.
      
This image clearly exhibits both small-and large-scale structure in the distribution of deviations of the plane of polarization from its theoretical direction for coronal emission in the near infrared (570-800 nm).
      
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In this paper,the Variable-Lamp-Current Method is described.It's design concept,experiments and measuring processes are given.It is suit-able for the wide scope of visible-near infrared-infrared spectral range.Ma-thematical expressions and system parameter selection for the Variable-Lamp-Current System are described.Experimental results are obvious and acceptable,regardless of the way of regulating.The system can be used in the visible-near infrared-infrared spectral range with a regulation...

In this paper,the Variable-Lamp-Current Method is described.It's design concept,experiments and measuring processes are given.It is suit-able for the wide scope of visible-near infrared-infrared spectral range.Ma-thematical expressions and system parameter selection for the Variable-Lamp-Current System are described.Experimental results are obvious and acceptable,regardless of the way of regulating.The system can be used in the visible-near infrared-infrared spectral range with a regulation accuracy of better than±2%.This method is applicable for fields as physics,biology,geology,me-dicine and applied chemistry,where Equal-quanta,Equal-energy or Equal-res-ponse spectra are required.

本文叙述了对可见-近红外-红外光谱范围都适用的灯流调节技术及其实验和测试过程,并给出了灯流调节系统的数学模式及系统参数选择。实验表明,不管采用何种调节方式,结果都是直观的,故适用于可见-近红外-红外光谱区域中。调节精度在整个光谱范围内已优于±2%,可用在物理学、生物学等需要等光谱功率、等光谱光子、等光谱响应的场合中。

In this paper a kind of visible-near infrared Fourier transform spectrometer developed byour laboratory is described. The He-Ne laser reference system is used for sampling the interfe- rogram at equal interval of retardation. Increments of 158.2nm in optical path length are obt-ained by subdividing the natural fringe spacing of He-Ne laser by a factor of 4. The workingwavelength range is between 400--1000nm. The Apple-2 microcomputer is used for instrumentoperation controlling, inte.ferogram sampling and...

In this paper a kind of visible-near infrared Fourier transform spectrometer developed byour laboratory is described. The He-Ne laser reference system is used for sampling the interfe- rogram at equal interval of retardation. Increments of 158.2nm in optical path length are obt-ained by subdividing the natural fringe spacing of He-Ne laser by a factor of 4. The workingwavelength range is between 400--1000nm. The Apple-2 microcomputer is used for instrumentoperation controlling, inte.ferogram sampling and data processing. The instrumental performanceis demonstrated and aliasing problem is discussed by spectral measurement.

本文介绍了我们研制的波长范围400至1000nm的可见一近红外傅里叶交换光谱仪。通过四倍频电路使激光条纹间隔四等分,给出158.2nm等光程差间隔进行干涉图采样。使用Apple Ⅱ微计算机控制仪器操作,数据采集和数据处理。对光谱测量结果进行了讨论。

In this paper a television camera technique using intensified CCD isput forward in order to realize the multispectral remote sensing imaging within thevisible to near infrared wavelength region. By using this technique,the multispectralimage can be obtained within the narrow band,and more multispectral image infor- mation can be provided for the agriculture.

本文提出了一种利用增强型CCD电视摄像技术,实现在可见光与近红外波段内的多光谱遥感成像。采用该技术可适时获取窄带光谱内的多光谱图像,从而为农业生产提供出更多的多光谱图像信息。

 
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