| 摘要 |
PURPOSE: To direct an inspection sensor accurately in the normal direction to a bent pipe according to the combination of a sensor head and sub-heads. CONSTITUTION: The arrangement according to the invention comprises a sensor head 3 which has a supporting leg 11 to serve centering and sub-heads 5, 6 having bridge legs in front and behind for the purpose of retaining the attitude which are coupled by a flexible joint 4. |
