分布式光纤传感器的主要技术方法有The main technical methods of distributed optical fiber sensors are as follows:()
A.光时域反射(OTDR)法Optical time domain reflection (OTDR) method#B.干涉法interferometry#C.布拉格光栅法(FBG)Bragg grating method (FBG)#D.波长扫描法和连续波调频法Wavelength scanning and continuous wave frequency modulation