What targets can only be detected by an inductive proximity sensor?

Inductive proximity sensors are specifically designed to detect metallic targets due to the principle of electromagnetic induction. When a metal object approaches the sensor, it changes the sensor's inductive field, which is how the presence of the object is detected. This type of sensor operates by generating an electromagnetic field and responding to changes caused by conductive materials.

Unlike other materials such as plastic, wood, or ceramic, which do not significantly affect the electromagnetic field produced by the sensor, metals will create a notable response. This property makes inductive proximity sensors especially useful in industrial applications where metal objects need to be sensed without physical contact, such as in assembly lines, manufacturing equipment, and robotics. Therefore, the ability to detect only metallic objects clearly distinguishes inductive proximity sensors from other types of sensors that may respond to a broader range of materials.