Role and scope of Sensors
ROLE AND SCOPE OF SENSORS We live in a World of Sensors. You can find different types of Sensors in our homes, offices, cars etc. working to make our lives easier by turning on the lights by detecting our presence, adjusting the room temperature, detect smoke or fire, make us delicious coffee, open garage doors as soon as our car is near the door and many other tasks. Mechatronic systems are composed of mechanical and electrical components, referred as “smart” systems because of the integration of sensors, actuators, and control systems. Essential part of a mechatronics system is the measurement system that senses the variations in the physical parameters, such as temperature, pressure, displacement, and so on, and converts it to an electrical quantity, viz. electric voltage or current. The measurement system consists of mainly two parts: sensor and signal-conditioning circuit. A device that displays, records, or controls the measured variable utilizes the output of the measure...