reference beam

Switches between sample and reference beam. Four-segment design provides for sample and reference, increasing measurement accuracy.

斩波器,将光依次切换到参比光路和样品光路, 四扇区设计可以提供样品测试和参比测试中分别测试暗电流, 增加准确性.

The paper discussed the procedure and attentions of box beam precast for reference.

阐述了箱梁在预制过程中的每一个环节和每一个步骤以及施工中应注意的事项,从而保证了箱梁预制的质量.

Due to non-uniform artifacts such as beam hardening, scatter, and volume averaging, the ideal reference phantom should be as close to the target tissue as possible.

由于非均匀文物如束硬化，分散，体积平均的理想参考幻像应接近目标组织的。

This device splits the light beam into a measuring light beam and a reference light beam.

此设计把光束分成测量光束和参化光束.

Studying two-beam coupling, we get the gain curve of the signal beam in three cut planes in BSO when the polarization of signal and reference beams are parallel or not parallel.

对二波耦合，分别讨论了在三种BSO晶体切面上，信号光和参考光的偏振态互相平行和存在夹角时信号光增益特性；