[1] Luhai Li, Yujing Lan, Ming Peng, et al. Coating techonology and its standardization. Chinese Standardization, 58-62(2021).

[2] [2] The People''s Bank of China, Currency Gold Silver Bureau (Security Bureau) [EBOL]. [20190429] http:www.pbc.gov.cnhuobijinyinju1479481479541479563817129index.html

[3] B Gokhan, A Sencer, S Muray, et al. Reversible decryption of covert nanometer-thick patterns in modular metamaterials. Optics Letters, 44, 4507-4510(2019).

[4] [4] SCIPA. Protective coating f safety documents[P]. China. CN104870582 A. 20150826.

[5] [5] CBPM. A UV curable dumb light coating oil with high antifouling property[P]. China. CN107011768A. 20170504.

[6] [6] Niu Zhiyou. The NIRS analysis of fish meal, concentrate supplement MBM content inside[D]. Beijing: China Agricultural University, 2005. (in Chinese)

[7] [7] Li Hongbo. Study on quality detection model of pinus kaiensis seeds based on near infrared spectroscopy[D]. Harbin: Ntheast Festry University, 2021. (in Chinese)

[8] Daiqing Sun, Lirong Xie, Yan Zhou, et al. Application of SG-MSC-MC-UVE-PLS algorithm in whole blood hemoglobin concentration detection based on near infrared spectroscopy. Spectroscopy and Spectral Analysis, 41, 2754-2758(2021).

[9] Liusan Wang, Ziling Huang, Rujing Wang. Identification of soybean seed coat crack based on near infrared spectroscopy and machine learning. Transactions of the Chinese Society for Agricultural Machinery, 52, 361-368(2021).

[10] [10] Li Chunlin. Sensy chemical quality evaluation of Longjing Tea using chemometrics nearinfrared spectroscopy technique[D]. Hangzhou: Zhejiang University, 2019. (in Chinese)

[11] D Jung, U Kim, K Hwang. Optical properties of a thermochromic film fabricated with nanoporous monoclinic VO₂ particles. Journal of Ceramic Science and Technology, 11, 73-79(2020).

[12] Chunyan Xia, Fangfang Xu, Xin Zhang, et al. Rapid determination of coating film thickness of tianshu tablets by near infrared spectroscopy. Chinese Journal of Experimental Traditional Medical Formulae, 26, 118-124(2020).

[13] M Shikhar, O Noritaka, Nayeem H Md., et al. Terahertz time of flight spectroscopy as a coating thickness reference method for partial least squares near infrared spectroscopy models. Analytical Chemistry, 92, 3658-3665(2020).

[14] R. Wahl P, Peter A., Wolfgang M., et al. How to measure coating thikness of tablets: Method comparison of optical coherence tomography, near-infrared spectroscopy and weight-, height- and diameter gain. Pharmaceutics and Biopharmaceutics, 142, 344-352(2019).

[15] Andersson M., Josefson M., W. Langkidle F., et al. Monitoring of a film coating process for tablets using near infrared reflectance spectrometry. Pharmaceutical and Biomedical Analysis, 20, 27-37(1999).

[16] Jianping He, Ping Jin. Study on the application of DBPSO algorithm to thickness measurement of surface insulation coating of silicon steel by NIR spectrometry. Spectroscopy and Spectral Ananlysis, 31, 2416-2419(2011).

[17] Liangshan Ming, Lin Zhu, Zhe Li, et al. Quality assessment of film coating tablet samples using confocal laser scanning microscopy imaging and near infrared spectroscopy. Chinese Journal of Modern Applied Pharmacy, 38, 1281-1288(2021).

[18] A Balakrishnan, G Jena, R P George, et al. Polydimethylsiloxane-graphene oxide nanocomposite coatings with improved anti-corrosion and anti-biofouling properties. Environmental Science and Pollution Research, 28, 7404-7422(2020).

[19] [19] Wu J G. Modern Fourier Transfm Infrared Spectroscopy Technology Application[M]. Beijing: Scientific Technical Documentation Press, 1994: 256257. (in Chinese)

[20] [20] ISO 251782012, Surfaces acterization : Parameters 3 D filters[S].