Researching | Study of phase correction method based on multi-frequency heterodyne principle

Infrared and Laser Engineering, Volume. 52, Issue 5, 20220697(2023)

Study of phase correction method based on multi-frequency heterodyne principle

Chuangwei Guo^1,2,3, Yang Wang⁴, Wenzhe Zou^2,3, Yuqing Guan^2,3, Yujie Zhang^1,2,3, Liqin Liu^2,3, Zhishan Gao¹, and Lihua Lei^2,3、*

Author Affiliations

¹School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

²Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China

³Shanghai Key Laboratory of Online Test and Control Technology, Shanghai 201203, China

⁴China National Accreditation Service for Conformity Assessment, Beijing 100062, China

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References (18)

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Fig. 1. Dual frequency heterodyne principle

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Fig. 2. Error correction flow chart

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Fig. 3. Images acquired in the experiment

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Fig. 4. Unwrapping phase distribution before and after correction

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Fig. 5. Integer level N₁₂ of 的整数级次

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Fig. 6. (a) 3D point cloud before correction; (b) 3D point cloud after correction

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Chuangwei Guo, Yang Wang, Wenzhe Zou, Yuqing Guan, Yujie Zhang, Liqin Liu, Zhishan Gao, Lihua Lei. Study of phase correction method based on multi-frequency heterodyne principle[J]. Infrared and Laser Engineering, 2023, 52(5): 20220697

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Paper Information

Category: Photoelectric measurement

Received: Jan. 20, 2023

Accepted: --

Published Online: Jul. 4, 2023

The Author Email:

DOI:10.3788/IRLA20220697

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology