中文摘要：

一个新奇纤维布拉格栅栏(FBG ) 排水量传感器被建议，它能由于它的机械转移结构与可变测量精确完成宽测量范围排水量察觉螺旋状倾斜齿轮。一个原型被设计并且制作。这个原型的最大的察觉排水量是 1.751 m，并且精确等级从 0.2% ～ 6.7% 变化。通过分析在刻度实验被获得的实验数据，这个传感器的测量范围从 0 m 到 1.532 m，和在实验数据之间的波长移动错误，理论计算都是不到 5% 。

英文摘要：

A novel fiber Bragg grating （FBG） displacement sensor is proposed, which can achieve wide measuring range dis- placement detection with variable measurement precision due to its mechanical transfer structure of helical bevel gear. A prototype is designed and fabricated. The maximum detection displacement of this prototype is 1.751 m, and the precision grade changes from 0.2% to 6.7%. Through analyzing the experiment data which is obtained in the calibra- tion experiment, the measuring range of this sensor is from 0 m to 1.532 m, and the wavelength shift errors between experiment data and theory calculation are all less than 5%.