Design and Construction of an Educational Corrosion Monitor System for Students at High Schools and Universities

This study aims to design an educational corrosion monitor system. The developed system gives the students the ability to study metal corrosion in an acidic media by following the emitted Hydrogen gas is produced from the acid that reacted with the metal. A Hydrogen gas sensor was used to measure the quantity of gas emitted. This sensor was connected to an Arduino-UNO microcontroller to convert the sensor's signal to digital values. The monitoring of the corrosion process can be followed by software programmed as Macro Unit and installed on Microsoft Excel. The Affected factors studied include the exposure time of metal in acid media, the producibility, and the system's response to the acceleration of emitted gas. The results indicate that the system has high accuracy. Also, this system is characterized as cheap (25$) to construct and is small, portable, and easy to operate, which gives the ability to study metal corrosion in education for high schools and universities.