期刊论文

Duan, FJ

英文

Optics Express

1094-4087

2023

31

13

20994-21013

10.1364/OE.492391

National Natural Science Foundations of China (52205573, 61971307, 62231011, U2241265); National Key Research and Development Plan Project (2020YFB2010800); China Postdoctoral Science Foundation (2022M720106); Joint Fund of Ministry of Education for Equipment Pre-research (8091B022144); National Defense Science and Technology Key Laboratory Fund (6142212210304); Guangdong Province Key Research and Development Plan Project (2020B0404030001); the Fok Ying Tung Education Foundation (171055); Young Elite Scientists Sponsorship Program by CAST (2021QNRC001).

本校为其他机构

In this paper, a high-accuracy measurement method for rotor-stator axial clearance in narrow spaces is proposed. The optical path structure based on all-fiber microwave photonic mixing is established. To improve the accuracy and expand the measurement range, the total coupling efficiency over the entire measurement range at different working distances of fiber probe was evaluated by Zemax analysis tool and theoretical model. The performance of the system was verified by experiments. The experimental results show that the measurement accuracy of...