The methods about external deformation monitoring of dams,tunnels or other structures become more and more mature. But it is difficult to monitor internal deformation sometimes,or such monitoring is very expensive and the accuracy is not high because of the limitations of the electric sensors,GPS and other applications. In order to solve these problems,a remote control deformation monitoring system is designed based on the Fiber Bragg Grating(FBG) with the temperature compensation, which adopts the demodulation method of the tunable matching fiber grating. The test results show that the measurement resolution is 100 nm and a nonlinear error is 150 nm. The method is feasible,effective and with low cost.%对大坝、隧道等结构体外部变形监测的手段较多且成熟，但对其内部的变形监测手段因为电类传感器、全球定位系统等应用的局限性，目前还难监测或者监测的成本昂贵且精确度不高。针对这个问题，利用布拉格光纤光栅，采用可调谐匹配光纤光栅法，设计了可远程控制的具有温度自补偿功能的动态变形监测系统。系统的分辨力为100 nm，非线性误差为150 nm，实验证明该方法用于结构体的内部变形监测不仅可行，而且成本较低，结构简单，灵敏度高，适合结构体内部变形监测的需要。
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