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
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