[1] [1] SONG Q L, HU Zh F, LIANG X B, et al. Development and application of laser cleaning technology ［J］. New Technology & New Process, 2019(4): 1-5(in Chinese).

[2] [2] QI X Sh, REN Zh G, LIU J Y, et al. Study on effect of laser derusting technology on properties of high speed train collector ring［J］.Laser Technology, 2019, 43(2): 168-173(in Chinese).

[3] [3] CHENG J, FANG Sh Ch, LIU D, et al. Technology and application of laser cleaning for metal surface［J］. Applied Laser, 2018, 38(6):1028-1037(in Chinese).

[4] [4] ZHANG Z H, YU X Ch, WANG Y, et al. Experimental study about cleaning of tire molds with pulse YAG laser［J］.Laser Technology, 2018, 42(1): 127-130(in Chinese).

[5] [5] GUO N H, WANG J X, XIANG X. Study on laser cleaning process of sol-gel film optical surface［J］.Laser Technology, 2020,44(2):156-160(in Chinese).

[6] [6] LEI Zh L, TIAN Z, CHEN Y B. Laser cleaning technology in industrial fields［J］. Laser ＆ Optoelectronics Progress, 2018, 55(3):030005(in Chinese).

[7] [7] CHEN Sh X, YE Sh W, HONG Zh B, et al. Optimization of process parameters of laser cleaning metal coating based on ortho gonal experi- ment［J］. Applied Laser, 2020, 40(3):492-496(in Chinese).

[8] [8] ZOU B. Mathematical model of laser plasma voice wave ［J］. Mathe-matics in Practice and Theory, 2007(15):65-69 (in Chinese).

[9] [9] LU Y F, HONG M H, CHUA S J, et al. Audible acoustic wave emission in excimer laser interaction with materials［J］. Journal of Applied Physics, 1996, 79(5):2186-2191.

[10] [10] LEE J M, WATKINS K G. In-process monitoring techniques for laser cleaning［J］. Optics and Lasers in Engineering, 2000, 34(3):429-442.

[11] [11] KIM T, LEE J M, CHO S H. Acoustic-emission monitoring during laser sock cleaning of silicon wafers［J］. Optics and Lasers in Engineering, 2005, 43: 1010-1020.

[12] [12] XU J, SUN Zh Y, ZHOU W M, et al. Real-time monitoring technique for laser cleaning rust deposite［J］. Acta Photonica Sinica, 2002, 31(9):1090-1092 (in Chinese).

[13] [13] CAI Y, CHEUNG N H. Photoacoustic monitoring of the mass removed in pulsed laser ablation ［J］. Microchem Journal, 2011, 97(2):109-112.

[14] [14] TSEREVELAKIS G J, POZO-ANTONIO J S, SIOZOS P, et al. On-line photoacoustic monitoring of laser cleaning on stone: Evaluation of cleaning effectiveness and detection of potential damage to the substrate［J］. Journal of Cultural Heritage, 2018, 35: 317-332.

[15] [15] TSEREVELAKIS G J, POULI P, ZACHARAKIS G. Listening to laser light interactions with objects of art: A novel photoacoustic approach for diagnosis and monitoring of laser cleaning interventions［J］. Heritage Science, 2020, 8(1): 17-21.

[16] [16] XU Y L. Qualitative analysis of metal materials based on photoacoustic effect and LIBS［D］. Fuzhou: Fuzhou University, 2017:117-123(in Chinese).

[17] [17] ROSEMCWAIG A, GERSHO A. Photoacoustic effect with solids: A theoretical treatment［J］. Science, 1975, 190(4214):556-557.

[18] [18] HORFMANN A, ARNOLD W. Calculation and measurement of the ultrasonic signals generated by ablating material with a Q-switch pulse laser［J］. Applied Surface Science, 1996(96/98):71-75.

[19] [19] YANG H L, ZHENG Zh B. Research on bayesian discrimination and its application［J］. The Guide of Science & Education, 2020(3):44-46 (in Chinese).

[20] [20] LI H. Statistical learning methods［M］. 2nd ed. Beijing: Tsinghua University Press, 2019:59-61 (in Chinese).