Title:
CRYSTAL REFRACTIVE INDEX MEASUREMENT METHOD AND APPARATUS, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/024467
Kind Code:
A1
Abstract:
A crystal refractive index measurement method and apparatus, and a storage medium. The measurement method comprises: obtaining a reference interference image and a crystal interference image generated by an interferometer (100) (S100); calculating the centers of gravity of the reference interference image and the crystal interference image to obtain first center-of-gravity coordinates and second center-of-gravity coordinates (S200); and calculating a relative gravity movement amount, and obtaining the refractive index according to the relative gravity movement amount, the fringe width of the reference interference image, the thickness of a crystal, and the wavelength of a source light beam (S300). Refractive index measurement can be directly performed without changing the shape of a crystal by processing same, the measurement precision is high, the measurement rate is high, and the efficiency and accuracy of crystal refractive index measurement are greatly improved.
Inventors:
LONG JIALE (CN)
ZHANG JIANMIN (CN)
XI JIANGTAO (CN)
LIU XINYUE (CN)
DU ZIHAO (CN)
DING YI (CN)
DENG FUQIN (CN)
ZHONG DONGZHOU (CN)
HU YI (CN)
ZHANG JIANMIN (CN)
XI JIANGTAO (CN)
LIU XINYUE (CN)
DU ZIHAO (CN)
DING YI (CN)
DENG FUQIN (CN)
ZHONG DONGZHOU (CN)
HU YI (CN)
Application Number:
PCT/CN2022/078148
Publication Date:
March 02, 2023
Filing Date:
February 28, 2022
Export Citation:
Assignee:
UNIV WUYI (CN)
International Classes:
G01N21/01; G01N21/45
Foreign References:
| CN113777035A | 2021-12-10 | |||
| CN113899697A | 2022-01-07 | |||
| CN102967585A | 2013-03-13 | |||
| CN110619680A | 2019-12-27 | |||
| CN102323445A | 2012-01-18 | |||
| CN102042971A | 2011-05-04 | |||
| JP2010230574A | 2010-10-14 | |||
| JPH08110266A | 1996-04-30 | |||
| EP0924507A1 | 1999-06-23 | |||
| JP2006170775A | 2006-06-29 | |||
| CN109187433A | 2019-01-11 |
Other References:
LIU, XINYUE; LONG, JIALE; HU, YI; XU, BIN; DU, ZIHAO; DENG, DINGNAN: "Refractive Index Measurement of Scintillation Crystals based on Mach-Zendel Interferometry", PUBLIC COMMUNICATION OF SCIENCE & TECHNOLOGY, CN, vol. 1674-6708, no. 2, 31 January 2022 (2022-01-31), CN, pages 152 - 156, XP009543927, DOI: 10.16607/j.cnki.1674-6708.2022.02.030
ZHANG, HAO; CHEN, MINGHUI; TIAN, TIAN; XIANG, HUAZHONG; ZHENG, GANG: "Rapid Analysis of Edible-Oil Refractive Index Using Optical Interferometry", OPTICAL INSTRUMENTS, SHANGHAI OPTICAL INSTRUMENT RESEARCH INSTITUTE OF CHINA, CN, vol. 39, no. 1, 28 February 2017 (2017-02-28), CN , pages 1 - 5, XP009543737, ISSN: 1005-5630
ZHANG, HAO; CHEN, MINGHUI; TIAN, TIAN; XIANG, HUAZHONG; ZHENG, GANG: "Rapid Analysis of Edible-Oil Refractive Index Using Optical Interferometry", OPTICAL INSTRUMENTS, SHANGHAI OPTICAL INSTRUMENT RESEARCH INSTITUTE OF CHINA, CN, vol. 39, no. 1, 28 February 2017 (2017-02-28), CN , pages 1 - 5, XP009543737, ISSN: 1005-5630
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
Download PDF: