The indication of electrical parameters such as AC voltage, DC voltage, AC current, DC current and frequency is an important task of electronic measurements. There are two modes of indication; (1) analog and (2) digital. Analog meters are used for analog indication and digital meters are used for digital indication. An analog meter is a device that features a printed display to indicate any electrical parameter. An example could be the energy consumed by a typical business, or electrical device. Also called an electromechanical meter, it offers an easy-to-read display. Digital meters are the product of the latest developments in electronic technology, so it is to be expected that they will incorporate many features that are not available in typical moving-coil meters. As well as a wide selection of voltage, current and resistance ranges (including accurate low-resistance range) many of these meters also provide for measurements of capacitance and frequency. This book describes both analog and digital meters.
Dr K.C. Selvam obtained a diploma in electronics and communication engineering from the Government Polytechnic College, Krishnagiri, Tamil Nadu, India in 1986. He graduated from the Institution of Electronics and Telecommunication Engineers, New Delhi, in 1994, and earned an honorary PhD from the University of Swahili, Government of Panama in 2020. He has published more than 34 research papers in various national and international journals. He has also published 5 technical and scientific books. He earned the Best Paper Award from the Institution of Electronics and Telecommunication Engineers (IETE) in 1996, and the Student Journal Award from the same institution in 2017. At present, he is a scientific staff member at the Department of Electrical Engineering, Indian Institute of Technology, Madras, India.
