Electronic sensors are everywhere, and the technology is expected to grow exponentially in the coming years. Sensors act as the eyes and ears of electronic devices. They are the bridge between the conditions of the physical world and the electronic systems that can use these inputs to analyze and take the required action.
In fact, there are hundreds of sensor types designed to detect or measure everything from temperature to location. They play key roles, from detecting smoke or carbon dioxide in residential smoke alarms to identifying incoming ballistic missiles.
The sensor utilizes a variety of technologies, including infrared, magnetic, radiative gravity detection, piezoelectric, acoustic and ultrasonic. They are made of materials as simple as bimetallic strips, and can be as complex as whole sensor classes using advanced micromachining techniques