用于测量液体浓度的光纤传感器设计THE DESIGN OF FIBER OPTIC SENSOR FOR THE MEASUREMENT OF LIQUID CONCENTRATION
周轶,周奕行,王亚芳,冯娟
摘要(Abstract):
光纤传感器因其具有体积小、灵敏度高等优点,已被广泛运用于浓度、温度、振动等物理量的测量。本文设计了一种可以测量溶液浓度的强度调制型光纤传感器,并对实验装置进行了优化,通过改变光纤的曲率半径提高了测量精度,通过光纤光谱仪实现了对光电子数的精确测量,并使用分光器等器件优化了实验装置。文中通过测量已知溶液浓度与光强的关系,给出了标准曲线并对未知浓度溶液进行了盲测,以此分析了传感器的精度,其分辨率可以达到1.00%,能够精确地测量液体浓度。最后展望了该类传感器未来的优化方向。
关键词(KeyWords): 光纤传感器;光纤半径;液体浓度
基金项目(Foundation): 中国地质大学(北京)大学生创新创业训练计划项目(S202411415068)
作者(Author): 周轶,周奕行,王亚芳,冯娟
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