【摘要】 利用长周期光纤光栅对环境折射率敏感的特性,设计制作了一种基于单端长周期光纤光栅的新型浓度传感器,并采用单端镀银、减小光栅区包层等措施提高了分辨率。利用此传感器测量了CaCl2、NaCl溶液的浓度变化,实验结果表明,分辨率在低浓度和高浓度处分别达到3.50(g/L)和1.96(g/L)以上。更多还原

【Abstract】 A kind of concentration sensor is made out based on long-period fiber grating with one head,and resolution values are improved by coating silver film and reducing fibre cladding.This concentration sensor is tested for measuring the concentration shift of CaCl₂ 、NaCl solutions,the resolution values in high concentration and low concentration are above 3.50（g/L）and 1.96（g/L）.更多还原