The design of common path makes the measurement beam and the reference beam incident on the surface along the same way.
共光路设计，使测量光和参考光沿同一路径入射到被测表面上。
The analysis is made based on the reciprocity of object beam with reference beam and experimental results are presented in this paper.
本文用物光、参考光地位对等的观点来进行分析，并给出了实验结果。
The results show that diffraction efficiency of a lossless grating increases with the higher ratio of reference beam width to object beam width.
对于无吸收的光栅，参考光束相对物光束越宽，衍射效率将越高。
However, for strongly-coupled gratings if the absorption of medium cannot be ignored, the diffraction efficiency decreases with widening of reference beam.
当介质的吸收不可忽略时，对于耦合较强的光栅，参考光尺寸的增大反而会引起衍射效率的下降。
Switches between sample and reference beam. Four-segment design provides individual blank readings 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。
Finally, some Suggestions are put forward on how to improve the velocity accuracy when using reference beam LDV.
最后提出了使用参考光式LDV提高速度测试精度的注意事项。
Polarization holography with depolarized reference beam is an effective means of recording and reconstructing the polarization state of the object wave in holography.
消偏参考光的偏振全息术是能记录并再现物光波偏振状态的一种有效方法。
Holographic gratings recorded on the film and diffraction images recovered by the reference beam were obtained. Factors influencing the recovery image's quality were analyzed.
获得了存储于样品上的全息干涉条纹和参考光再现的衍射像，分析了影响衍射图像像质的因素。
This paper introduces the conditions of traditional and new paving benchmark, and expounds the structure principle and application results of the over-partition reference beam.
介绍了传统、新型摊铺基准的情况，阐述了跨越式基准梁结构原理及使用效果。
The low-voltage driving circuit is adopted to drive a piezoelectric ceramic phase shifter to shift the phase of the reference beam, so as to make the instrument lighter, smaller and cheaper.
采用低压驱动电路驱动压电陶瓷相移器对参考光束进行相移，从而使仪器质量减轻、体积缩小、成本降低。
Volume holographic grating, used as a volume holographic imaging lens in the imaging system, is recorded via illuminating the recording medium with a spherical signal beam and a plane reference beam.
体全息光栅由球面信号光波和平面参考光波干涉记录，并以原信号光作为探测光波进行成像。
Volume holographic grating, used as a volume holographic imaging lens in the imaging system, is recorded via illuminating the recording medium with a spherical signal beam and a plane reference beam.
体全息光栅由球面信号光波和平面参考光波干涉记录，并以原信号光作为探测光波进行成像。
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