Sensors have been developed and manufactured by microelectronic fabrication techniques to measure corrosion rates directly and to determine the effectiveness of corrosion control systems. Microsensors based on measurements of corrosion rate by linear polarization, electrical resistance change and galvanic currents have been devised. Analytical measurements by potentiometric and amperometric techniques using thick-film planar transducers are illustrated. The use of generic sensor elements individually and in combination to attest the status of corrosion control and to provide data for the evaluation of future performance is highlighted.

Subject
Sensors, Thick films, Transducers, Ion concentrations, Metals, Gold, Equipment, Corrosion protection, Electrical resistance probes, Elements, Linear polarization resistance, Electrodes, Electrode potential
Keywords:
corrosion control, microelectronic, probe, sensor, transducer
National Association of Corrosion Engineers
1989
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