基于力学传感器精度、强度的要求,设计了输电线路覆冰在线监测力学传感器。通过有限元分析其应变、应力,对传感器进行结构优化,提高其抗弯矩的强度。对传感器进行信号处理,将传感器的物理信号变换为数据采集、控制过程的电信号,从而完成对覆冰导线重力的检测。该传感器已在紫拉线直流400 kV输电线路安装运行。 Based on the requirements of accuracy and strength of mechanical sensors, an on-line monitoring mechanical sensor for transmission line icing is designed. Through the finite element analysis of its strain, stress, the sensor structure optimization to improve the strength of its bending moment. Signal processing of the sensor, the sensor’s physical signal is transformed into data acquisition and control of electrical signals in the process, thus completing the detection of the gravity of the icy conductor. The sensor has been installed on the Zigzag DC 400 kV transmission line.