Abstract
Rapid data acquisition is required for the two dimentional graphic data analysis by using scanning sensors or electrodes in the X-Y direction. In order to satisfy this requirement, a high speed X-Y scanning system has been developed, in which data can be sampled every 40μs and 3 million data can be graphically analyzed in 10 minutes.
The localized corrosion behavior was studied by using a microelectrode. The experimental results showed that this scanning microelectrode system can be used to detect the localized corrosion on alloys and also fine defects of coated materials.
It was also found that the newly scratches formed can be detected by using the exo-electron detector as a sensor.
