| Title |
Active Vibration Measuring Sensor for Nondestructive Test of Electric Power Transmission Line Insulators |
| Authors |
이재경(Lee, Jae-Kyung) ; 박준영(Park, Joon-Young) ; 조병학(Cho, Byung-Hak) |
| Keywords |
Active Vibration Measuring System ; Nondestructive Test ; Crack Detection ; Natural Frequency |
| Abstract |
A new active vibration measurement system in electric power transmission line is presented, using in the nondestructive test. With a permanent magnet and a couple of coils, the system exerts impact force to a test object and in turn picks up the vibration of the object. The natural frequency with the amplitude obtained from the system are used as a basis for the detection of defects in the object. The system is controlled by an electronic device designed to facilitate the fully automated testing process with consistent repeatability and reliability which are essential to the nondestructive test. The system is expected to be applied to the wide area of defect detection including the classification of mechanical parts in production and inspection processes. |