Sensors are one of the key elements in modern systems, as they determine the quality of the information that is acquired from real life and used for control and decision making. The global market for sensors is fast growing and the innovation rate is extremely high. Despite the conservative attitudes held by some towards sensor innovations, it is vitally important for system developers, system integrators and decision makers to be familiar the principles and properties of the new sensor types in order to make a qualified decision which sensor type to use in particular system and what...