| 摘要 |
Apparatus for use in inspecting ferromagnetic wall members. The apparatus comprises a telescopically extendable pole member having a carriage attached to the extendable end of the telescope. The carriage comprises a mounting frame attached to one of its ends to the extendable end of the telescope. A shaft extends through the mid portion of the mounting frame generally perpendicular to the telescope. Wheels consisting at least in part of permanent magnetic material are rotatably mounted on each end of the shaft. An ultrasonic transducer is attached to the other end of the mounting frame. An electric current carrying cable is electrically connected to the transducer and a waterline having an open end adjacent the end of the transducer is attached to the mounting frame.
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