CD42 Pipeline Pig Location & Tracking System
Page 60
Glossary of Terminology
Electromagnet
A core of magnetic material surrounded by a coil of wire through which an
electric current is passed to magnetize the core
Magnetic Field
The portion of space near a magnetic body or a current carrying body in which
the forces due to the body or current can be detected
Magnetic Flux
Lines of force used to represent magnetic induction
Null
Indicated by a zero reading on a scale; indicates center of transmitter
Parallel
Extending in the same direction
Perpendicular
Extended at right angles