[1] [1] LIU Cuiwei,LI Yuxing,YAN Yukun,et al. A new leak location method based on leakage acoustic waves for oil and gas pipelines[J]. Journal of Loss Prevention in the Process Industries, 2015(35):236-246.

[2] [2] MOON C,BROWN W C,MELLEN S,et al. Ultarsound techniques for leak detection in vehicle and pressure vessel production lines[C]// INTER-NOISE and NOISE-CON Congress and Conference Proceedings. Dearborn MI:[s.n.], 2008:1332-1340.

[4] [4] EGGENBERGER A,BELOSEVIC I,ANTOGNINI A,et al. Temperature dependence of the leak rate and permeability of helium gas through Kapton foils[J]. Nuclear Instruments & Methods in Physics Research A:Accelerators,Spectrometers,Detectors and Associated Equipment, 2015,798(21):140-143.

[5] [5] CHEN Qiang,SHEN Guodong,JIANG Juncheng,et al. Effect of rubber washers on leak location for assembled pressurized liquid pipeline based on negative pressure wave method[J]. Process Safety and Environmental Protection, 2018(119):181-190.

[6] [6] ZHAO Ling,YANG Hongjiu. Small-target leak detection for a closed vessel via infrared image sequences[J]. Infrared Physics and Technology, 2017(81):109-116.

[7] [7] DRAGOMIRETSKIY K, ZOSSO D. Variational Mode Decomposition[J]. IEEE Transactions on Signal Processing, 2014, 62(3): 531-544.

[9] [9] LU Jingyi, YUE Jikang, ZHU Lijuan, et al. Variational mode decomposition denoising combined with improved Bhattacharyya distance[J]. Measurement, 2020,151(6):107283.