基于光纤位移检测原理的静冰压力传感器的设计与研究

Design and Research on Static Ice Pressure Sensor Base on the Principle of Optical Fiber Displacement Detection

在高纬度地区冬季结冰期,水电大坝、水库等水工建筑物要承受由于温度变化引起冰体积膨胀而产生的静冰压力的挤压,如果对静冰压力估计不足,水工建筑物往往会遭受严重损坏.提出了一种基于光纤位移检测原理的静冰压力传感器结构,介绍了静冰压力传感器机械结构与数据处理电路的设计思路和工作原理,分析了静冰压力与冰层厚度和冰层温度的关系,对传感器的现场实验数据进行了初步的分析.

At high latitudes in winter ice period, hydroelectric dams, reservoirs and other hydraulic structures will withstand the pressure of static ice due to temperature changes caused by ice volume expansion generated, if the static ice pressure is underestimated, hydraulic structures will suffer serious damage. This paper presents the structure of a static ice pressure sensors based on optical fiber displacement detection principle, and introduces the design idea of static ice pressure sensor mechanical structure and data processing circuit and working principle, analyzes the relationship of static ice pressure between ice temperature and ice thickness. We also analyze the data collect by the sensor in field trial.