4Chu E Y,Sawicka B D.The application of gamma-ray computed tomography in solid insulator diagnostics[C].Boston:Electrical Insulation Conference Record of the 1988 IEEE International Symposium on 5-8 June,1988:368-371.
5Fleszynski J,Ranachowski P,Ranachowski Z,et al.Non-destructive ultrasonic measurements of ceramic post insulators used in electricity distribution systems[J].Insight,2003,45(7):493-497.
6Joseph A,Thavasimuthu M,Jayakumar T.Non-destructive examination of porcelain insulators used in electricity transmission lines[J].Insight,1996,38(11):797-799.
7Person L,Jnsson A.Ultrasonic inspection of line pin post insulators and solid core insulators in switch gear stations[J].NDT&E International,1993,26(3):115-117.
9Ahmed S R,Saka M.A new ultrasonic angle-beam technique for sensitive evaluation of close cracks[J].NDT&E Int,2000,33(4):261-271.
10Vine K,Cawley P,Kinloch AJ.Comparison of normal and oblique incidence ultrasonic measurements for the detection of environmental degradation of adhesive joints[J].NDT&E International,2002,35(4):241-253.