DMTA-20073-01EN, Rev. C, November 2015
Preparing for an Inspection
49
4. Preparing for an Inspection
Before performing an inspection, the RollerFORM and the surface to inspect must
both be properly prepared.
To prepare for an inspection
1. Apply water couplant to the RollerFORM’s acoustic wheel and to the surface to
inspect.
For more information, see “Applying Couplant to the Acoustic Wheel and the
Surface to Inspect” on page 49.
2. Optimize the phased array signal.
For more information, see “Optimizing the Phased Array Signal” on page 50.
3. Adjust the middle wheel on the RollerFORM.
For more information, see “Adjusting the Middle Wheel” on page 52.
4. Prepare the surface to inspect.
For more information, see “Tracing the Scan Guide Lines on the Surface to
Inspect” on page 59.
4.1 Applying Couplant to the Acoustic Wheel and the Surface to
Inspect
Although the RollerFORM’s acoustic wheel is equipped with a liquid chamber, prior
to inspection, a minimal amount of water couplant must be applied to both the
acoustic wheel and the surface to inspect.
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