Sensors detect physical stimuli like heat, light, and motion and convert it to an electrical signal. Actuators are devices that perform an output function to control external devices. Together, sensors and actuators are called transducers. Smart sensors have general architectures that allow for information coding/processing and data compensation. Some common types of smart sensors are temperature, proximity, pressure, gas, accelerometer, level, image, motion detection, optical, and gyroscope sensors.
2. Introduction
The Sensors are devices that responds to a physical stimulus
heat, light, sound, pressure, magnetism, motion, etc , and
convert that into an electrical signal.
They perform an input function
The Devices which perform an output function are generally
called Actuators and are used to control. some external device,
for example movement.
Both sensors and actuators are collectively known as
Transducers. Transducers are devices used to convert energy
of one kind into energy of another kind.
