With a qualitative introduction to the field of measurements, this book presents the wide ranging implications of this subject. Measurement is an interdisciplinary investigational science. Measurement systems synergistically combine science, engineering and arithmetic methods to offer primary data for study, design and expansion, control of processes and operations, and make possible safe and economic performance of systems. In the past few years, measuring techniques have grown rapidly and have gained a certain position through extensive research and hard work. This book consists of a compilation of researches and theories based on measurements.