Page 158 - Corrosion Engineering Principles and Practice

132 C h a p t e r 5 C o r r o s i o n K i n e t i c s a n d A p p l i c a t i o n s o f E l e c t r o c h e m i s t r y 133

Sensor Elements
Insulator

e – e – e – e –
e – e –
e –
e –

e – – e –
e – e – e – e

Resistor

Coupling Joint Multiplexing Data Logger
Measuring Current Through Each Resistor
FIGURE 5.38 Multielectrode array multiplexed current and/or potential
measurement (adapted from [26]).
• H S systems
2
• Oil/water mixtures
• Cathodically protected systems
• Cooling water
• Simulated crevices in seawater

FIGURE 5.39 Typical CMAS probes used for real-time corrosion monitoring.
(Courtesy of Corr Instruments, LLC)