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首页> 外文期刊>Optical fiber technology >Concentration sensor based on a tilted fiber Bragg grating for anions monitoring
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Concentration sensor based on a tilted fiber Bragg grating for anions monitoring

机译：基于倾斜光纤布拉格光栅的浓度传感器，用于阴离子监测

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The ubiquity and importance of anions in many crucial roles accounts for the current high interest in the design and preparation of effective sensors for these species. Therefore, a tilted fiber Bragg grating sensor was fabricated to investigate individual detection of different anion concentrations in ethyl acetate, namely acetate, fluoride and chloride. The influence of the refractive index on the transmission spectrum of a tilted fiber Bragg grating was determined by developing a new demodulation method. This is based on the calculation of the standard deviation between the cladding modes of the transmission spectrum and its smoothing function. The standard deviation method was used to monitor concentrations of different anions. The sensor resolution obtained for the anion acetate, fluoride and chloride is 79 × 10~(-5) mol/dm~3, 119 × 10~(-5) mol/dm~3 and 78 × 10~(-5) mol/dm~3, respectively, within the concentration range of (39-396) × 10~(-5) mol/dm~3.
机译：阴离子在许多关键角色中的普遍性和重要性解释了当前对于设计和制备用于这些物种的有效传感器的高度兴趣。因此，制造了倾斜的光纤布拉格光栅传感器，以研究对乙酸乙酯中不同阴离子浓度（即乙酸根，氟离子和氯离子）的单独检测。通过开发一种新的解调方法，可以确定折射率对倾斜光纤布拉格光栅透射光谱的影响。这是基于传输光谱的包层模式与其平滑功能之间的标准偏差的计算得出的。标准偏差法用于监测不同阴离子的浓度。乙酸根，氟离子和氯离子的传感器分辨率为79×10〜（-5）mol / dm〜3、119×10〜（-5）mol / dm〜3和78×10〜（-5）mol / dm〜3分别在（39-396）×10〜（-5）mol / dm〜3的浓度范围内。

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