Rao Y J, Ribeiro A B, Jackson D A, Zhang L, Bennion I
Opt Lett. 1995 Oct 15;20(20):2149-51. doi: 10.1364/ol.20.002149.
A combined spatial- and time-division-multiplexing topology with drift-compensated high-resolution wavelength-shift detection is reported for fiber Bragg grating sensors. An eight-element grating sensor array is demonstrated based on this topology. A resolution of 1.2 microepsilon over a range of ~1.5 mepsilon with a measurement bandwidth of 30 Hz (0.22 microepsilon/ radicalHz) has been achieved for quasi-static strain measurement.
本文报道了一种用于光纤布拉格光栅传感器的、结合了空间和时分复用拓扑结构以及具有漂移补偿的高分辨率波长偏移检测方法。基于这种拓扑结构展示了一个八元件光栅传感器阵列。对于准静态应变测量，在约1.5με的范围内实现了约1.2με的分辨率，测量带宽为30Hz（约0.22με/√Hz）。
