设计了一种用于二维平面内的倾斜角测量的光纤布拉格光栅(FBG)传感器,采用4根光纤布拉格光栅,可用来测量平面内二维方向的倾斜角度,且无需附加温度补偿装置即可消除环境温度的影响。实验结果表明该设计具有高灵敏性和测量精度,其倾斜角度的准确度和精度非常好,大约可以达到0.009°的精度。此外,该倾斜传感器的准确度和精度还可通过增加设计中的悬垂重物质量,减小每对光纤之间的夹角来提高。如果进一步缩小该设计的整体结构大小,还可消除因空气扰动引起的4个光纤布拉格光栅温度不一致而引起的误差,减小环境温度对测量结果的影响。 A Fiber Bragg Grating (FBG) sensor for the measurement of tilt angle in a two-dimensional plane is designed using four fiber Bragg gratings to measure the tilt angle in two-dimensional directions in a plane without the need for an additional temperature compensation device Eliminate the effects of ambient temperature. Experimental results show that the design has high sensitivity and measurement accuracy, the accuracy and accuracy of the tilt angle is very good, about the accuracy of 0.009 °. In addition, the accuracy and accuracy of the tilt sensor can also be increased by increasing the mass of suspended objects in the design, reducing the angle between each pair of fibers. If the overall structure size of the design is further reduced, the errors caused by the inconsistencies of the four fiber Bragg gratings due to the air disturbance can be eliminated, and the influence of the ambient temperature on the measurement results can be reduced.