| 光谱学与光谱分析 |
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| Design of a Portable UV-Vis Spectrophotometer |
| WAN Feng1,SUN Hong-wei2,FAN Shi-fu1 |
1. College of Precision Instruments and Photoelectronics Engineering, Tianjin University，Tianjin 300072, China
2. Beijing Purkinje General Instrument Co. Ltd, Beijing 100081, China |
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Abstract In the present paper, a method for how to design a portable UV-Vis spectrophotometer is introduced. The Hamamatsu multichannel detector S3904-1024Q and a flat field concave grating are employed to design a miniaturized dispersion system. In order to solve the contradiction between the spectral width and energy-utilizing ratio of the light source, a multi-band optical fiber is employed, one side of which is arranged to be rectangle as the entrance slit. The touch screen is employed as the input and output system of the spectrophotometer, and the miniaturized fiber-optic UV-Vis light source is employed as the light source. The research results and testing results of the prototype show that the new spectrophotometer based on the authors’ new method is of miniaturization in volume(190 mm×170 mm×100 mm), can realize multi-wavelength-detection on-line, and is easily handled (touch screen control), and its performance accords with the Chinese national standard.
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Received: 2005-08-15
Accepted: 2005-11-10
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Corresponding Authors:
WAN Feng
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[5] HUANG Mei-zhen, NI Yi, LIN Feng, et al(黄梅珍，倪 一，林 峰，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(6)：938.
[6] Sokolova Elena. Journal of Modern Optics, 2000, 47(13): 2377.
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