Development of Micro-Spectrophotometer and Its Application in Online Hexavalent Chromium Water Quality Monitoring Instrument

被引：0
|
作者：
Lu Xinchun [1 ]
Yuan Yinghua [1 ]
Sun Yingqi [1 ]
Zhao Shudi [1 ]
Luo Yonggang [1 ]
机构：
[1] NARI Grp Corp, State Grid Elect Power Res Inst, Nanjing 211000, Jiangsu, Peoples R China
来源：
LASER & OPTOELECTRONICS PROGRESS | 2018年 / 55卷 / 12期
关键词：
optical design; water quality monitoring; spectrophotometer; wavelength calibration; spectral resolution;
D O I：
10.3788/LOP55.122201
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high resolution wide-spectral micro-spectrophotometer is developed based on the asymmetrical cross Czerny-Turner system. The wavelength of this spectrophotometer is calibrated by the three polynomial fitting method, and the relative error of wavelength calibration is less than 0.1 nm. This spectrophotometer is used to set up an experimental measurement system, and the chromogenic agent and the standard chromium solution arc formulated to test the performances of this system. The results show that this spectrophotometer can meet the application requirements of the online monitoring of hexavalent chromium water quality, which provides a solution for realizing high-precision, multi-wavelength water quality parameter online monitoring.
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页数：7
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