Inductive Sensors
Inductive sensors are non-contact electronic devices that detect the presence or absence of metallic objects by generating an electromagnetic field and measuring changes in its properties. They operate based on Faraday's law of electromagnetic induction, where a metal object entering the field induces eddy currents, altering the sensor's oscillation amplitude or frequency. These sensors are widely used in industrial automation, robotics, and manufacturing for position detection, counting, and safety applications.
Developers should learn about inductive sensors when working on embedded systems, industrial IoT, or automation projects that require reliable metal detection without physical contact. They are essential for applications like conveyor belt monitoring, machine tool positioning, and safety interlocks in factories, as they offer high durability, resistance to environmental factors like dust and moisture, and fast response times compared to mechanical switches.