查询词典 Bragg

To control the Bragg wavelength, a lock-in amplifier is used, and the output wavelength is locked at the C2H2 absorption line of 1530.37 nm.

利用锁定放大器闭环控制布拉格波长，将激光器的输出波长锁定在乙炔气体1530.37nm的吸收峰上，24h内频率稳定度达10^-8。

For initializing the reference quantity of Bragg wavelength, the vertex angles of the biprism are determined by the 1 diffraction angle of phase mask and the refract index of the biprism.

为了初始化Bragg波长的参考值，双光栅的顶角由相位掩模的1级衍射角和双棱镜的折射率确定。

A deflection angle of acoustooptical Bragg diffraction on an acoustic-optical medium is modulated by ultrasonic, and on the other hand, surface acoustic wave propagation velocity can be influenced by rotational velocity Ω of SAW medium.

摘 要：声表面波陀螺效应表现为SAW介质旋转角速度Ω对SAW波速的调制作用，以及对布拉格衍射角的调制作用。

The relationship between acoustic wave direction,laser incident angle,and laser diffraction angle of TeO2 acousto-optical deflector with acoustic frequency was analyzed based on the TeO2 crystal acousto-optical characteristic and Dixon equations under abnormal Bragg diffraction.

根据晶体的声光特性以及反常布喇格衍射的Dixon方程，得出了氧化碲声光偏转器在反常布拉格衍射条件下的参量矢量关系。分析了超声波方向、入射光角度、衍射光角度与声波频率之间的关系。

The check and measure methods of Bragg angle step and precision etc. parameters with high precision autocollimation are investigated.

针对同步辐射光束线中的弧矢聚焦双晶体单色器，研究了高准确度自准直平行光管对Bragg转角的步长分辨、转角准确度等参量检测的方法。

A rotatable biprism is introduced in phase mask technique to change the inscribed Bragg of grating.

将一种可旋转的双棱镜引入到相位掩模技术中以改变光栅的写入Bragg波长。

Because the change of grating period caused by the asymmetrical rotation of two beams is limited to 5×10-4 nm at a tunability of the Bragg wavelength of ~100 nm, the tilt of grating caused by the rotation of the biprism can be ignorable.

因为在~100 nm范围内两光束的非对称旋转对光栅周期的改变是5×10-4 nm，双棱镜引入的光栅的闪耀可忽略。

In this paper,a method of chaos control in Bragg acousto-optic bistable system is proposed by using delay feedback acting on system parameter.

针对Bragg声光双稳系统的混沌态，提出了利用延迟反馈的方法对系统参量进行控制的方法，并讨论了连续、间隙两种控制方法下系统的状态演化。

The strain states of GaN are calculated base on the precise measurement of Bragg angle.

在精确测量布拉格衍射角的基础上定量计算了压应力的大小。

Therefore, the Ω can be figured out according to measuring the Bragg diffractive angle.

因此，通过测量声光布拉格衍射光的偏转角度，可以反推被测SAW介质的旋转角速度Ω。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。