Geometry:
Thickness of 1" / 25 mm, Height of 4" / 100 mm for straight beam calibration.
4" / 100 mm radius with saw cut at Index Point for Angle Beam Calibration: Determining Beam Index Point and Distance Calibration (signals at 4" / 100 and 8" / 200 mm).
2" / 50 mm bore hole for Probe Angle verification
0.06" / 1.5 mm bore hole for sensitivity adjustment