Bragg condition
英
美 [bræg kənˈdɪʃn]
网络 布拉格条件; 布拉格公式; 布喇格条件; 格条件
双语例句
- The result on site monitoring shows that the smart Fiber Bragg Grating bars can monitor the stained condition of cables effectively.
现场监测结果表明，光纤光栅智能索能有效监测拉索索力。 - Based on the analytic expression of electromagnetic field solution of helical symmetric dielectric material, the paper presents the relationship between spectral reflectivity and birefringence of chiral liquid crystal, and the blue shift of Bragg reflection in the condition of oblique incidence.
依据分子呈螺旋型排列的介质的电磁场解计算了给定厚度的手性液晶的光谱反射率与其双折射的关系，依据布拉格反射的干涉条件计算了斜入射光的布拉格反射光谱的蓝移。 - Fiber optic Bragg gratings and its applications on the condition monitoring system of the missile
布拉格光纤光栅及其在火箭状态监测中的应用探讨 - Refraction rate and cycle modulate depth of optical fibre Bragg grating is constant. For the light wave of grating, the light wave of Bragg condition will be all reflected; other light waves will be passed.
光纤Bragg光栅的折射率周期及调制深度均为常量，对于入射到Bragg光栅的光波，满足Bragg条件的光波都将被反射，其余光波通过。 - Fiber Bragg grating sensors, which provide the accurate condition of collection signal for Structure Health Monitoring, have been obtained extensive application in most engineering field because of its unique characteristics.
光纤光栅传感器以具有长期稳定性等独特的特性在各工程领域得到了广泛的应用，为结构健康监测信号的精确采集提供了条件。 - In the end, the properties of volume holograms and the filtering principles of multiple photorefractive volume gratings are discussed by using volume holograms theory and Bragg condition.
最后从体全息理论出发，结合布拉格条件，讨论了多重体全息相位栅的滤波原理。 - The holographic lens, which is designed according to Bragg condition to eliminate aberrations, has both high efficiency and low aberration, and can be used in a certain narrow-band condition.
该方法采用双片离轴全息透镜复合，按使用条件在布喇格条件下进行消三级像差设计，制作设计的全息透镜具有高衍射效率高、像差小的特点，可以满足任意给定的窄带光场合。 - Lastly, experiments have been done on tubular joint of offshore platform based on the PVDF strain sensor and the optical fiber bragg grating ( OFBG). Especially the two kinds of sensors have been compared in the same condition.
最后，介绍了基于光纤光栅传感器和PVDF压电薄膜传感器的海洋平台管节点实验，比较了两种传感器的传感性能； - If the corrugated wall in FEL interaction region satisfies the Bragg condition, its distributed feedback mechanism creates a Brgg cavity, like a conventional laser.
如果激光器的互作用区漂移管波纹满足布拉格条件，则其分布反馈机理构成了类似于普通激光谐振腔的布拉格腔。 - The approximation conditions under Bragg condition and deviating Bragg condition are analyzed with the judgment standards of the correlation of diffraction efficiency curves or the difference of diffraction efficiencies between two theories.
论文以两种理论的衍射效率特性曲线的相关或衍射效率计算差别作为判断标准，分析在Bragg条件和偏离Bragg条件下的Kogelnik耦合波理论的近似条件。 - The theoretical analysis and numerical calculation showed the Bragg microcavity with larger number N of periods identified with a Fabry-Perot ( F-P) cavity when the resonance condition was satisfied for incident optical wave and the Bragg microcavity mode.
理论分析和数值计算结果还表明，当入射光波与Bragg腔模满足共振条件且周期数N较大时，该结构可等效于由Bragg反射镜组成的Fabry-Perot（F-P）腔。 - Further analysis shows that this is caused by the long-period fiber grating's phase matching condition, which is different from that of Bragg grating.
进一步的分析指出，这是由长周期光纤光栅不同于Bragg光纤光栅的相位匹配条件决定的。 - By controlling the magnitude of the applied electric field, the readout beam can satisfy or deviate the Bragg condition, which makes the diffraction efficiency be 1 or 0, and thus realize the exchange or bypass operation of the switch.
通过控制读出光栅时外加电场的大小使读出光满足或偏离布拉格条件，从而控制衍射效率为1或0，实现开关的交换和直通操作。 - The numerical calculations show that the grating, as a frequency scan antenna, can produce perfect blazing in a wide range of incident angle only through adjusting the size of width and depth of the groove no matter Bragg condition is satisfied or not.
对这种光栅作为频率扫描天线的计算显示出，不论满足或不满足布喇格条件，在较宽的角度范围内入射，经调节槽宽和槽深都可获得理想的耀射。 - In addition, Bragg Brentano method can be affected by the diffraction geometry of the para focusing method, and the positive and the negative ψ parts of sin 2 ψ curve of the sample would split under zero stress condition.
准聚焦衍射几何也使得常规法在无应力情况下产生正、负ψ的sin2ψ曲线发生分离现象。 - The gain factor of the phase conjugation wave was derived out when the resonance condition was satisfied for incident optical wave and the Bragg microcavity mode.
当入射光波与Bragg腔模满足共振条件时，推导了其相位共轭波的增强因子。 - The Bragg acousto-optic receiver based on acousto-optic devices can detect the electromagnetic waves of multi frequency rapidly and simultaneously in the complex electromagnetic condition, so it is of high value in electronic warfare.
采用声光器件制成的Bragg声光接收机能够在复杂的电磁环境中同时快速检测出多束射频电磁波，在电子战中有很高的应用价值。 - Through analysis of Bragg diffractive condition, the optical transmitting direction of acoustic wave and photonic wave is demonstrated. Design parameters of waveguide AO Bragg modulator are achieved.
其次，通过对Bragg衍射条件的分析，论证了声波及光波在介质中的最佳传播方向，并给出了波导声光Bragg调制器件的设计参数。 - Cascaded chirped and phase-only sampled fiber Bragg gratings have also been proposed to enhance the channel energy which is limited by energy saturation under Talbot condition with the grating length.
针对在Talbot效应条件下，增加相位采样光纤光栅的长度，反射率偏低且饱和的问题，论文提出了级联型相位采样光纤布拉格光栅周期结构，提高了能量的利用率。