Shiwei LIU, Haiping MEI, Yichong REN, Zhiwei TAO, Azezigul Abdukirim, Junxin ZHANG, Yanling LI, Ruizhong RAO. Research on Flow Field Detection System with High Precision Based on Background Oriented Schlieren[J]. Acta Photonica Sinica, 2022, 51(11): 1112002