Inductive sensors are devices that detect the presence of metallic objects without direct contact. They work by generating an electromagnetic field and measuring changes in this field when a metal object enters it. These sensors are commonly used in industrial applications for automation and safety, as they can operate in harsh environments. These sensors are often found in manufacturing settings, where they help in counting, positioning, and detecting parts on assembly lines. They are reliable and can function at various distances, making them versatile for different applications, including robotics and automated machinery.