The key problem of FBG sensor study is the optical fiber diffraction 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。
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。
The diffraction characteristics of the phase mask for UV-written fiber grating is investigated using rigorous coupled-wave theory.
本文利用严格耦合波理论对用于光纤光栅制作的相位掩模的衍射特性进行了深入的研究。
The preoxidizing process of polyacrylonitrile (PAN) fiber is investigated with in-situ X-ray diffraction techniques in this paper.
本文用在位X-射线衍射技术研究了PAN（聚丙烯腈）纤维的预氧化过程。
The change of the crystalline structure of UHMWPE fiber was studied by small angle X-ray scattering (SAXS) , wide angle X-ray diffraction ( WAXD) and Raman spectroscopy.
利用小角X光散射（SAXS）、广角X射线衍射（WAXD）及拉曼光谱等测试手段，研究了拉伸过程中UHMWPE纤维的结晶结构变化。
By using techniques of X-ray diffraction, effects of anthesis date on the dynamic change of cotton fiber super-molecular structure and strength were studied.
选用纤维强度有显著差异的不同类型陆地棉品种，采用X -射线衍射技术，研究了开花期对棉花纤维超分子结构动态变化的影响。
The orientation and crystallinity of the PET fibers were measured by sonic and X-ray diffraction. The feature of modulus-strain curves were discussed from the fiber structure and applications.
通过声速法和X射线衍射实验测试纤维的取向和结晶，结合纤维结构及纤维应用讨论了两种PET纤维的模量-应变曲线特点。
Several mainstream laser beam combination methods, including stimulated Brillouin scattering, diffraction optics units and all fiber beam combination, are introduced.
介绍了当前光纤组束研究中的几种主流方法，即利用受激布里渊散射的光纤组束；利用衍射光学元件的光纤组束；全光纤组束等。
It is verified experimentally that higher diffraction efficiency and resolution can be obtained by optical fiber image plane hologram.
认为光纤象面全息图可以获得较高衍射效率和分辨率，并对此进行了实验验证。
An optic fiber grating diffraction screen is developed by use of optical diffraction. Combining with computer neural network, a vision system for recognizing stereo shape is developed.
利用光学衍射原理，研制成了光纤光栅衍射屏，并与计算机神经网络相结合，开发了一种识别立体形状的视觉系统。
Two X-ray diffraction and nuclear magnetic resonance analysis have shown that the crystallinity of bamboo fiber and ramie fiber similar to cotton and flax fiber is greater than.
X射线衍射和核磁共振两种分析结果均显示。竹原纤维的结晶度与苎麻纤维相近。大于棉纤维和亚麻纤维。
The structure of treated fiber is analyzed by DSC, DMA, X-diffraction and SEM.
通过DSC、DMA、X -衍射和SEM分析纤维的结构，测试了纤维接触角、断裂强度和层间剪切强度。
A near diffraction limited beam was produced from the amplifier with quasi-single mode output... the results shows that the high pulse energy fiber laser has advantage of simple all fiber structure.
输出的光束质量较好，为准单模输出。该光纤放大器输出脉冲能量高，具有全光纤化、结构简单的特点。
The prepared powders and the green and sintered hollow-fiber membranes were characterized by thermal analysis, X-ray diffraction, scanning electron microscopy and X-ray energy dispersive spectroscopy.
用热分析、X射线衍射仪、扫描电镜、X射线能谱等技术对制备的粉体、烧结前后的中空纤维膜进行了表征。
The prepared powders and the green and sintered hollow-fiber membranes were characterized by thermal analysis, X-ray diffraction, scanning electron microscopy and X-ray energy dispersive spectroscopy.
用热分析、X射线衍射仪、扫描电镜、X射线能谱等技术对制备的粉体、烧结前后的中空纤维膜进行了表征。
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