Potentiostats and galvanostats are electrochemical instruments used for measuring and controlling electrical current and voltage in electrochemical systems. A potentiostat is an instrument that measures and maintains constant potential during an electrochemical reaction, while a galvanostat measures and maintains constant current during an electrochemical reaction. Both instruments are used in a variety of applications, including electroplating, corrosion studies, battery testing, and fuel cell development. Potentiostats and galvanostats are often used in combination with other electrochemical techniques such as cyclic voltammetry and impedance spectroscopy to provide a more complete analysis of electrochemical processes. Select