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arXiv · 2302.14633

Length traceability chain based on chromium atom transition frequency

Xiao Deng·Zichao Lin·Gaoliang Dai·Zhaohui Tang·Zhangning Xie·Guangxu Xiao·Zhijun Yin·Lihua Lei·Tao Jin·Dongbai Xue·Zhenjie Gu·Xinbin Cheng·Tongbao Li
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Abstract

Precise positioning measurement plays an important role in in today advanced manufacturing industry, and length traceability chain has been optimizing and enriching to fulfill the developing and various precise positioning requirement. In this paper, we propose a new length traceability chain based on chromium atom transition frequency, which is a combining utilization of fundamental physical constant accuracy and grating interferometer environmental robustness. The selftraceable grating pitch standard, the selftraceable angle standard and the selftraceable grating interferometer are promising to improve the measurement accuracy, consistency and selfcalibration ability in situ for precise positioning.

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Xiao Deng, Zichao Lin, Gaoliang Dai, Zhaohui Tang, Zhangning Xie, Guangxu Xiao, Zhijun Yin, Lihua Lei, Tao Jin, Dongbai Xue, Zhenjie Gu, Xinbin Cheng, Tongbao Li. 2023-02-23. Length traceability chain based on chromium atom transition frequency. https://arxiv.org/abs/2302.14633

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