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光纖模式濾光化學傳感器測定乙二醇

Measurement of Ethylene Glycol by Fiber-Optic Mode-Filtered Light Chemical Sensor

摘要


本文採用了一種新的檢測方式模式濾光檢測,構造了一種基於樣品折射率變化的具有廣譜響應的裸光纖化學傳感器,應用於乙二醇含量的測定,獲得了滿意的結果。該傳感器性能穩定,重現性好,取兩份不同含量的樣品進行測定,向標準的化學方法相比,相對誤差分別為0.31%和3.33%,檢測下限為2%(v/v)。

關鍵字

模式濾光 傳感器 光纖 乙二醇 折射率

並列摘要


A broad-spectrum unclad fiber-optic chemical sensor based on the sample refractive index is fabricated, which integrate an improved approach of measurement that is called mode-filtered light detection. A good result has been obtained by applying this sensor to the detection of ethylene glycol. It shows that this sensor has good stability and reproducibility by measurement of two samples with different concentrations with relative errors of 0.31 % and 3.33%, respectively, and detection limit of 2% (v/v).

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