三向测缝计研究

Study of three-direction joint meter

介绍柔性钢丝位移计整体式三向测缝计、刚性拉杆位移计整体式三向测缝计、刚性拉杆位移计分体式三向测缝计的基本原理和结构形式,并对这3种三向测缝计的位移计算公式进行了详细推导。结合这3种三向测缝计的不同结构和原理,分析了其各自的一些特点,最后根据这3种三向测缝计的特点,推荐了其最适合的使用场合。

This paper introduces basic principles and structures of three types of three-direction joint meters： integral one with flexible wire extensometer, integral one with rigid tie extensometer and split one with rigid tie extensometer. Meanwhile, formula for calculation of displacement of the three types of three-direction joint meters is derived in details. Based on the different structures and principles of these three types of three-direction joint meters, their characteristics are analyzed. Furthermore, the most favorable locations of application of these joint meters are recommended finally.