Inductive sensors are a type of proximity sensor that detect the presence or absence of metallic objects without physical contact. They work based on the principle of electromagnetic induction. When a metallic object enters the sensing range of the inductive sensor, it disturbs the electromagnetic field around the sensor, causing a change in inductance. This change is then detected and converted into a digital signal, indicating the presence of the metal object.
Inductive sensors are commonly used in industrial automation, robotics, packaging, material handling, and automotive applications for various purposes such as object detection, position sensing, and speed detection. They are preferred in applications where non-contact sensing is required and where sensing reliability and durability are important.