Olympus FlexoFORM - Appendix A: Straight Pipe Inspection Setup; Unidirectional Scan Setup Procedure

10-003591-01EN [Q7780031], Rev. 4, January 2020
Setting Up to Inspect a Straight Pipe — Unidirectional or Bidirectional Scan 75
Appendix A: Setting Up to Inspect a Straight Pipe —
Unidirectional or Bidirectional Scan
Depending on your inspection needs, setup, and preferences, Olympus recommends
the unidirectional or bidirectional scanning methods for straight pipe or cylinder
surfaces.
Unidirectional scan
The principal advantage of performing a unidirectional scan is that the same
starting reference is retained for each scan, because the encoder in the scan
direction is always reset to the origin value every time the indexing button is
pressed (see Figure A-1 on page 75).
Figure A-1 Unidirectional scan pattern
Scan axis
Index axis