Online corrosion monitoring is an essential component of any comprehensive corrosion
control program. It enables corrosion engineers to detect changes in corrosion behavior, and
enable timely remedial action to be taken.
Field and laboratory experiences with the Advanced Electrical Resistance (AER) on-line
corrosion probes will be covered. An AER system with fiber optic communication links has
been proven to be a reliable source of measuring the effectiveness of the implemented
inhibition program. Several assessment tests have demonstrated that the AER probes are
very sensitive and responsive to corrosion rate changes.