当它在察觉到的 fiberBragg 栅栏(FBG ) 被使用时,波长部门 multiplex 有明显的优点因为各种各样的数量的同时的测量,而是传感器的数字被小橇和解调器的带宽通常限制。相同纤维 Bragggrating 为火报警系统被介绍,收集相同 FBGsensors 的信号的方法被描述。实验结果显示出那,相同 FBG 察觉到。传感器的数字极大地在一纤维增加联合了,精确能被保证为火报警系统满足要求。
Wavelength division multiplex has obvious advantages when it is used in fiber Bragg grating (FBG) sensing for simultaneous measurement of various quantities, but the number of sensors is usually restricted by the bandwidth of SLED and demodulator. The identical fiber Bragg grating is introduced for fire alarm system and the method of collecting signal of identical FBG sensors is described. The experiment result shows that with identical FBG sensing. The number of the sensors coupled in one fiber increases greatly and the precision can be ensured to meet the requirement for fire alarm system.