The key problem of FBG sensor study is the optical fiberdiffraction grating signal demodulation, namely, the detection of small shifting of wave length.
研究光纤光栅传感器的关键问题是光纤光栅的信号解调，即波长微小移位的检测问题。
2
X-ray diffraction techniques were used to measure the degree of crystallinity and the orientation of flax fiber during retting.
采用X射线衍射法研究温水浸渍法脱胶和酶法脱胶过程中亚麻纤维结晶度、取向度的变化情况。
3
The diffraction characteristics of the phase mask for UV-written fiber grating is investigated using rigorous coupled-wave theory.