[7] Zhang W, Dong M, Zhu L, et al. Research on dynamic method of liquid level detection based on the probe type capacitance sensor[J]. AASRI Procedia, 2012, 3: 546-552.
[9] Lukonge A B, Cao X. Leak detection system for long-distance onshore and offshore gas pipeline using acoustic emission technology: A review[J]. Trans. of the Indian Institute of Metals, 2020, 73: 1715-1727.
[12] Gurpreet K, Patterh M S. Suppression of four wave mixing in wavelength division multiplexed system with hybrid modules[J]. Optik, 2014, 125(15): 3894-3896.
[16] Yu Z H, Zhang Q, Wang H, et al. Tunable optical delay line for optical time-division multiplexer[J]. Optics Communications, 2017, 395: 217-220.