CAJ | 학술논문

光纤光栅传感器相比与传统传感器,其特有的轴向敏感性决定了它的探测距离在传感器的不同方向上是有差异的,因此光纤光栅传感器的布置角度对于传感器网络的性能具有很大的影响.基于传统传感器的概率探测模型,本文提出了一种贴合光纤布拉格光栅传感器实际特点的探测模型,并通过实验验证了其正确性,继而利用这一模型,采用粒子群优化算法进行了光纤光栅传感网络的优化布置.最后,同不考虑布置角度的优化布置方法进行了比较,结果表明,在实际应用中考虑布置角度对于传感网络性能具有很大的提升.
광섬광책전감기상비여전통전감기,기특유적축향민감성결정료타적탐측거리재전감기적불동방향상시유차이적,인차광섬광책전감기적포치각도대우전감기망락적성능구유흔대적영향.기우전통전감기적개솔탐측모형,본문제출료일충첩합광섬포랍격광책전감기실제특점적탐측모형,병통과실험험증료기정학성,계이이용저일모형,채용입자군우화산법진행료광섬광책전감망락적우화포치.최후,동불고필포치각도적우화포치방법진행료비교,결과표명,재실제응용중고필포치각도대우전감망락성능구유흔대적제승.
Different from traditional sensor, FBG sensor has particular detective probe length in different angle of sensor because the sensitivity of FBG in axial direction is much better than other directions. Thus the layout angle of FBG sensor can affect the performance of FBG sensor network greatly. A detection model is proposed for FBG sensor which fits its feature based on probability model, and the correctness of the model is verified by experiment. Then particle swarm optimization algorithm is used to optimize the placement of FBG sensor network. Finally, the results of optimization method are compared with those of optimization method not considering the layout angle of sensor. It is indicated that the performance of sensor network is greatly improved by considering the layout angle in placement.