在60米的远距离处，使用组合式调频连续波激光雷达自动聚焦系统进行微米级精度测量。

Micron-precision measurement using a combined frequency-modulated continuous wave ladar autofocusing system at 60 meters standoff distance.

作者信息

Pan Hao, Qu Xinghua, Zhang Fumin

出版信息

Opt Express. 2018 Jun 11;26(12):15186-15198. doi: 10.1364/OE.26.015186.

DOI:10.1364/OE.26.015186

Abstract

In this paper, we propose a novel combined frequency-modulated continuous wave (FMCW) ladar autofocusing system and a fast compensation method for dispersion mismatch, which could allow high-precision ranging to be performed at a long distance. By using the dual-beam laser autofocusing system based on a liquid lens, this system can quickly complete a measurement with high-precision. The experimental results showed that the precision was below 126 μm in a range up to 60m, corresponding to a relative precision of 2.1 × 10 , compared to a reference interferometer.

摘要

在本文中，我们提出了一种新型的组合调频连续波（FMCW）激光雷达自动聚焦系统以及一种用于色散失配的快速补偿方法，该方法能够实现远距离的高精度测距。通过使用基于液体透镜的双光束激光自动聚焦系统，该系统能够快速完成高精度测量。实验结果表明，在高达60米的范围内，精度低于126微米，与参考干涉仪相比，相对精度为2.1×10 。