PAGE 3 of 47
BG0104 Rev 03.3
Chapter 3
DEFINITIONS
3.1. Definitions of Symbols
Denotes movement. Instructing user to carry out action in
a specified direction.
Indicates alignment axis.
Indicates user ‘look here’ or ‘see this part’.
3.2. Definition of Terms
Circumferential
Direction of scan travel is around the
circumference of the pipe/tube
(Fig. 1)
.
Longitudinal
Direction of scan travel is lengthwise of the
pipe/tube
(Fig. 2)
.
Fig. 1
- Circumferential scanning
Fig. 2
- Longitudinal scanning