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基于三维荧光光谱水体DOM检测

Based on the Dimensional Fluorescence Spectra of Water DOM Detection

Advance in Modern Physics / 2020,2(3): 116-123 / 2020-09-03 951 1744

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• Authors: 潘金燕      程朋飞*      姚家旸     
• Information:

  华北理工大学电气工程学院，唐山

• Keywords: Dimensional fluorescence spectra; DOM; Online detection system; Wavelet entropy 三维荧光光谱；DOM；在线检测；小波熵
• Abstract: A new device of online detection of dissolved organic matter (DOM) in water was developed. The optical filter part of the detection system uses the filter disc. As a monochromator, the rotating disc can produce continuous UV—visible spectrum in 230 nm to 500 nm. The photoelectric detection device uses a photomultiplier spectral response ranging from 185 nm to 650 nm, a maximum response at 340nm wavelength. In the signal processing part, the wavelet entropy based on denoising algorithm is used to verify that the wavelet analysis method has a good effect of signal and noise separation for the fluorescent signal. 本文研究了一种新型的在线监测水中溶解性有机物（DOM）的检测 装置。仪器的滤光部分采用滤光器圆盘，旋转的圆盘作为一种单色器可以产生 230 ～ 500 nm 连续的紫外—可见光谱。光电检测器件选用光电倍增管，光谱响 应范围为185 ～ 650 nm，在340 nm 处有最大响应波长。信号处理部分采用基于 小波熵的荧光信号去噪算法，验证了小波分析法对荧光信号有着良好的信噪分 离效果。
• DOI: https://doi.org/10.35534/amp.0203016
• Cite: 潘金燕，程朋飞，姚家旸．基于三维荧光光谱水体DOM 检测［J］．现代物理进展，2020，2（3）：116-123．