摘要
本文提出一种新型的光纤干涉测距系统 ,可以测量 1m以上的绝对距离。整个系统采用两部分干涉结构 ,分别对目标进行定位、光程调谐以及对距离的测量 ,并通过引入已精确标定的光纤进行光程倍增以扩大系统的动态范围。文中论述了系统的基本测量原理及其数字化定位信号处理系统 。
A new optic fiber interferometric system for measuring absolute distance up to 1 meter is presented. Two interferometers are employed in this system. One fiber interferometer is set up to position and tune the optic paths; the other is used to measure the displacement. The dynamic range of the system is expanded with the method of multiplexing the optic path by introducing the accurately calibrated optic fibers into the system. In addition, the allocation signal processing system used in the system is also discussed and experiment results are given.
出处
《计量学报》
CSCD
北大核心
2002年第3期178-181,共4页
Acta Metrologica Sinica
基金
国家自然科学基金 (5 0 0 0 5 0 14 )
