NDI Equipment Settings.
Make the following initial settings on the Eddy Current Inspection Unit, NORTEC-19e11
- 200 KHz
Probe drive -
Refer to Eddy Current Method, paragraph 1.4.11. Set up on test block as follows:
Null probe on test block.
Adjust phase as required to obtain horizontal lift-off.
Move probe over all three notches in test block. Adjust gain to obtain a three block vertical signal when
probe is passed over 0,040-inch notch in test block. (See the standard instrument display shown in
Inspection Procedure. Refer to Eddy Current Method, paragraph 1.4.11 and Figure 5-4.
Figure 5-4. Air Inlet Assembly and Bleed-Air Exhaust Slots