TUBING PROBE BOBBIN WITH PETAL

摘要

An apparatus and method for inspecting an elongate tubular member with an eddy current sensor inspection assembly including a bobbin is provided. The bobbin includes a shell defining a hollow interior and axially aligned openings at each end while supporting a sensor. A plurality of petals extend outwardly from the shell, and the petals are configured to position the bobbin concentrically within a tubular member as the bobbin is moved within the tubular member. The bobbin can be included in an inspection assembly with a probe head to support a sensor including at least one wire winding. A flexible shaft is connected to the probe head and transmits a motive force to move the probe head within the tubular member. The probe head includes a flexible tube, the bobbin supporting the sensor, and at least one centering bead mounted upon the flexible tube.

主权项

1. A bobbin for an eddy current sensor including:
a shell defining a hollow interior and axially aligned openings at each end, the shell configured to support a sensor; a plurality of petals surrounding the shell, wherein the petals extend outwardly from the shell, the petals configured to position the bobbin concentrically within an elongate tubular member as the bobbin is moved internally within the elongate tubular member.