Electrical measurements and instrumentation are generally at the heart of industrial process control and manufacturing‎.‎ To implement equipment systems and infrastructure investment will depend on the extent of electrical quantities to cover‎,‎ but also the level of uncertainty sought for calibrations‎.‎ With regards to subject‎,‎ this book discussed a comprehensive overview of the various tools and instruments for electrical measurement‎,‎ technical characteristics of existing analog and digital devices‎.‎ The advances discussed in this book provide an innovative measurement system‎,‎ a technical electrical testing‎,‎ a characterization of various parameters and experimentation to check the behaviour of the equipment‎.‎ Analysis and modeling are carried out to assess the performance of measurement‎.‎ Furthermore‎,‎ this book describes some applications in various fields as in medical‎,‎ in pharmaceutical‎,‎ in energy measurement and control‎,‎ in computer vision and others‎.‎ This book is suitable for engineers‎,‎ quality control technician and researchers‎.‎