Two-dimensional remote interferometric stage encoder through a single access port using range-resolved interferometry
Two-dimensional remote interferometric stage encoder through a single access port using range-resolved interferometry
复制标题
使用范围分辨干涉测量通过单个访问端口进行二维远程干涉测量台编码器
DOI:
10.1117/12.2525596
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Wiseman K
中科院分区:
文献类型:
--
作者:
Wiseman K
In this work, using our range-resolved interferometry (RRI) signal processing technique, we present a novel approach to multidimensional displacement measurements using only a single optical access port and very simple optical setup. By utilising surface reflections from a stage-mounted moving beamsplitter and two orthogonal stationary reference mirrors, two interferometers for the two Cartesian measurement directions are formed. With RRI, the interferometric phase signals of both interferometers can be independently demodulated, allowing simultaneous measurements of displacement in both dimensions using a single continuous-wave laser diode source and a single photodetector. In this paper, the capabilities of this approach are demonstrated using a proof-of-concept experiment with a multidimensional Piezoelectric stage performing a variety of stage movements. Measurements of displacements over a nominal stage working range of ±50μm are presented, demonstrating independent, simultaneous displacement measurements of two dimensions. The presented measurements show nanometer-level displacement resolutions with typical noise densities of 0.02 nm/√Hz over a 21 kHz bandwidth. It is thought that this approach could offer an interesting alternative to existing interferometric techniques for multi-dimensional metrology, benefiting from both simplicity and cost-effectiveness whilst maintaining the advantages that make optical techniques attractive to scientific and industrial applications.
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DOI:
10.1016/j.precisioneng.2009.05.008
发表时间:
2010-01-01
影响因子:
3.6
作者:
Kimura, Akihide;Gao, Wei;Zeng Lijiang
通讯作者:
Zeng Lijiang
DOI:
--
发表时间:
2011
期刊:
World Congress on Intelligent Control and Automation
影响因子:
--
作者:
Yi;K. Fan;Bor
通讯作者:
Bor
影响因子:
3.8
作者:
Kissinger, Thomas;Charrett, Thomas O. H.;Tatam, Ralph P.
通讯作者:
Tatam, Ralph P.
影响因子:
4.7
作者:
Kissinger, Thomas;Chehura, Edmond;Tatam, Ralph P.
通讯作者:
Tatam, Ralph P.