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Authors:
潘金燕
程朋飞*
姚家旸
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Information:
华北理工大学电气工程学院,唐山
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Keywords:
Dimensional fluorescence spectra; DOM; Online detection system; Wavelet entropy
三维荧光光谱; DOM; 在线检测; 小波熵
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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。
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DOI:
https://doi.org/10.35534/amp.0203016
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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.