Inductive Sensor: Non-Contact Detection Technology
An inductive sensor is a device used to sense the presence or position of metal objects in a non-contact way. These sensors are widely used especially in industrial automation, production lines, robotics and automotive applications. Inductive sensors operate based on magnetic field changes and do not require physical contact.
Working Principle
The principle of operation of inductive sensors is based on the laws of electromagnetic induction. The sensor contains a coil, through which an electric current is passed. This creates a magnetic field around the coil. When a metal object approaches the magnetic field of the coil, the properties of this field change. This change is detected by the inductive sensor and an output signal is generated. This signal is usually a switching signal and is transmitted to a control unit or PLC.
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