beam modulator meaning in English

波束调制器
电子束调制器
光束调制器

The key technology of measuring time - resolved spectrum is to design and make the special light beam modulator that is used to the time - resolved spectrum detecting
瞬态时间分辨谱测量方法的关键技术：设计和研制了专用于时间分辨谱采集分析的光束调制器。
The special light beam modulator is a disc that rotates at high speed , symmetrically along its diameter is respectively arranged a slit and a small hole , the slit is used to modulate light beam , the small hole is used to the synchrosystem and measure speed of modulator
该调制器为一高速旋转圆盘，其上沿轴向刻制细缝，在圆盘对称位置开小孔；细缝用于调制光束，小孔用于系统同步及调制器转速测定。
In this method of measuring time - resolved spectrum , a special light beam modulator translates the time - distribution of an optical spectrum into a space - distribution of light intensity of the light beam , and the space - distribution spectrum is dispersed by a multi - spectrometer , then it is detected by an ordinary 2 - d ccd array detector
瞬态时间分辨谱测量方法的主要思想：使用特殊光束调制器把光谱随时间的变化过程转化为光强的空间分布，经色散后，以二维探测器接收并转换光信号为电信号，用通用计算机控制采集并处理光谱数据。