Corrosion Measurement with Vibration Type Corrosion Sensor

Abstract

Development of sensor by which corrosion behavior of long duration can be measure with high degree of sensitivity is useful to evaluate corrosion reliability of device and to study corrosion mechanism of material. Vibration type corrosion sensor is based on a principle that change of resonant frequency of elastic plate corresponds to change of thickness of it. This sensor can be used for corrosion monitoring in both air and liquid environment. By using vibration type corrosion sensor, copper dissolution process in dilute HNO₃ aqueous solution at room temperature was measured with a resolution of -0.48μm/Hz.