Probe for inspecting the surface of a circumferential slot in a turbojet disk by means of eddy currents

摘要

A probe for eddy current monitoring of the surface of a circumferential slot formed in a turbojet disk. The probe includes a stem fastened to a support and a first multi-element sensor constrained to move with the stem and configured to be inserted into the circumferential slot to perform the inspection, and a second multi-element sensor. The two multi-element sensors are disposed back to back, and the stem of the probe is mounted to pivot about its own axis to enable the two multi-element sensors to be inserted in the slot.

主权项

1. An eddy current probe for monitoring a surface of a circumferential slot formed in a turbojet disk, the probe comprising:
a stem fastened to a support at a first end of the stem; a first multi-element sensor that performs an inspection, constrained to move with the stem and configured to be inserted into the circumferential slot; and a second multi-element sensor, wherein the first and second multi-element sensors are disposed back to back at a second end of the stem, and the stem is pivotable about an axis thereof such that in a first position of the probe, the first and second multi-element sensors are aligned with and insertable into the circumferential slot, and in a second position of the probe which is 90° about the axis of the stem from the first position, the first and second multi-element sensors abut corresponding side faces of the circumferential slot.