中文摘要：

IBIS-S是基于微波干涉测量技术的一种微变形监测系统，它的超高数据采集频率，动态测量等特点使它能够快速、准确地获取目标物的振动频率。本文提出了全新的利用IBIS．S系统测试斜拉索张力的方法，研究了IBIS-S动态监测“南京眼”斜拉桥的实验方案及监测结果，通过对数据频谱分析获取了斜拉索的振动频率。实验结果表明，斜拉索振动频率随着斜拉索长度的规律性变化和理论变化规律一致，因此该方法可以在斜拉索张力测试中应用。

英文摘要：

IBIS-S is a kind of micro deformation monitoring system based on microwave interference measurement technology, which is characterized by high data acquisition frequency and dynamic measurement. It can quickly and accurately obtain the vibration frequency of the target. In this paper, a new method of measuring the tension of cable based on IBIS-S system is put forward, and the experimental scheme and monitoring results of IBIS-S dynamic monitoring ＂ Nanjing yan＂ cable stayed bridge are studied. The experimental results show that the vibration frequency of the stay cable is consistent with the variation of the length of the cable and the theoretical variation. So the method ean be applied to the cable tension test.