School of Mechanical and Electrical Engineering;
Southwest Petroleum University;
Chengdu 610500;
China;
School of Engineering;
Newcastle University;
Newcastle NE17RU;
UK;
School of Electrical Information;
Southwest Petroleum University;
Chengdu 610500;
China;
Electrical Department;
Sukkur IBA University;
Sukkur 65200;
Pakistan;
School of Science;
Southwest Petroleum University;
Chengdu 610500;
China;
Non-metallic pipeline; Pipeline detection and location; Non-destructive test and evaluation; Acoustic technologies;