11 research outputs found
PC based coulometric thickness gauge
Coulometric technique of thickness measurement is based on Faraday’s first law of
electrolysis. This method involves the measurement of quantity of electricity required to
dissolve the coating anodically from a known area of the sample. Several factors affect
the accuracy of the method. This paper describes the design and development of a PC
based Coulometric thickness gauge. A software package has been developed to run the
experiments automatically. The results obtained using the developed instrument have
been presented