The distributed optical fiber monitoring technology has been gradually applied in various fields

but at the present

the performance variations of sensing cables when subject to cyclic stress have not yet been investigated in depth.In line with the repeated cyclic stress that the cables undergo indoor tests and in various monitoring projects

simulated load

temperature and the environmental condition changes

three tests are designed and the cyclic fatigue performances of the distributed sensing cables are calibrated

obtaining the stress attenuation curves of the cables in different conditions.The experimental results indicate that the higher the initial stress of the cables

the higher cyclic frequency and the greater the attenuation amount and rate of the cable stress.