液体折射率是反映液体浓度、温度等特性的重要性能参数,因而可通过测量其折射率来获得液体其它相关参数。本文采用去除包层的弯曲光纤,以待测液体作为光纤包层,设计了一种液体折射率传感器,并制备了该传感器,对其进行了实验测试,获得了较为满意的实验结果。该液体折射率传感器结构紧凑、易于制作、费用低,在实时、远程检测方面具有突出优势,故在医药化工、医学诊断、食品安全以及环境监控等诸多领域中具有广阔应用前景。 Liquid refractive index is a reflection of the liquid concentration, temperature and other important performance parameters, so by measuring the refractive index to get other liquid parameters. In this paper, a bent optical fiber with a cladding removed is used. A liquid refractive index sensor is designed based on the liquid to be measured as a fiber cladding, and the sensor is prepared. Experimental results are obtained and satisfactory experimental results are obtained. The liquid refractive index sensor has the advantages of compact structure, easy manufacture, low cost and outstanding advantages in real-time and remote detection. Therefore, the liquid refractive index sensor has wide application prospect in many fields such as medicine and chemical industry, medical diagnosis, food safety and environmental monitoring.