Definition - What does Resonator mean?
A resonator is a metallic cylindrical device that produces electrical signals and electromagnetic waves to a varying degree in relation to other metallic surfaces that it comes into physical contact with. Due to its unique properties, a resonator is used to measure the degree of corrosion existing in pipes and other corrosion-prone materials.
Corrosionpedia explains Resonator
A resonator acts as a sensor to the corrosion of metal surfaces. When no corrosion is detected, the conductors present on the resonator are distanced by only one fluid. The properties of this fluid are then changed to various degrees when the resonator is exposed to corresponding degrees of corrosion. These properties can thus be used to determine the presence and severity of a corrosive substance when monitored.