中文摘要：

挠度是评价桥梁安全性和开展桥梁监测的重要指标.分析了用于桥梁结构挠度自动监测各种新型传感技术的基本原理、性能特点及应用范围,并对比这些传感技术的测量精度、测量方式和适用桥型等.结果表明,长期在线自动动态测量和大量程测量是未来桥梁结构挠度自动监测的发展方向.

英文摘要：

Deflection is one of the most important structural health monitoring. The basic principles, bridge deflection automatic monitoring are analyzed. parameters in process of evaluating bridge＇ s safety and developing characteristics and applied field of different sensing technologies in And the corresponding measuring precision, measuring methods and applicability in different type bridges are also compared. The result shows that both high integration automatization and large scope measurement are developing directions in future.