[6] Ma Y, Muilwijk C, Yan Y J, et al. Measurement of bubble flow frequency in chemical processes using an optical fiber sensor[C]//2018 IEEE SENSORS, 2018: 1–4.
[12] Long J, Ji H F, Wang B L, et al. Online parameters measurement of Taylor flow in small channels using optical technique[C]//2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings, 2012: 2322–2325.
[15] Dai Z T. Study on optical measurement of phase distribution for bubble flow and slug flow in small channels[D]. Hangzhou: Zhejiang University, 2020.