A sensor is defined as a device or a module that
helps to detect any changes in physical quantity
like pressure, force or electrical quantity like
current or any other form of energy. After
observing the changes, the sensor sends the
detected input to a microcontroller or
microprocessor.
Finally, a sensor produces a readable output
signal, which can be either optical, electrical, or
any form of signal that corresponds to change in
input signal. In any measurement system, sensors play a major role. In fact, sensors are the
first element in the block diagram of measurement system, which comes in direct contact
with the variables to produce a valid output. Now you know What Sensor Actually Means?
let us know some kind of its types and their applications as follow.