Magnetic Sensor – Working & Its Applications

• The magnetic sensor detects the magnitude of magnetism and geomagnetism generated by a magnet or current and generates a certain output.
• These high-speed, extended-life sensors are directly compatible with other electronic circuits, responding to the presence or the interruption of a magnetic field by producing a proportional output.

Different Types of Magnetic Sensor

Coiled

• These are the simplest magnetic sensors that can detect the changes in a magnetic field.

Reed Switch

• It consists of two flattened ferromagnetic reeds sealed inside a glass tube, filled with an inert gas.
  The reeds will come into contact under the influence of a magnetic field. The spring force of the reeds causes them to separate, and open the circuit when the magnetic field is absent.

Hall Element

• A Hall element is a device that uses the Hall effect-When applying a magnetic field perpendicular to the current carrying conductor, the electromotive force appears in the direction orthogonal to both the current and the magnetic field.

Applications of Magnetic Sensor