How to Use Magnetic Sensor and Reed Switch in projects

How to Use Magnetic Sensors and Reed Switch in projects

A magnetic field from an electromagnet or a permanent magnet will cause the reeds to attract each other, thus completing an electrical circuit. The spring force of the reeds causes them to separate, and open the circuit when the magnetic field ceases.

Timestamps
00:00 - 1. Introduction & Demo
00:24 - 2. About Magnetic Sensor & Reed Switch
01:40 - 3. Reed Switch Testing
02:50 - 4. Magnetic Sensor Testing
03:23 - 5. Experiment on LED using Magnetic Sensor
05:27 - 6. On Paper Explanation for Magnetic Sensor

In-Depth study:
circuitsbazaar.com/how-to-use-magnetic-sensor-o…

A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch. Reed switch was invented in 1922 and later used adequately in 1936 by Walter B. Ellwood in the reed relay. A reed magnetic sensor is a sensor that uses a reed switch to detect a magnetic field. A reed switch is a switch that is activated by a magnetic field. The switch consists of a pair of ferromagnetic metal reeds that are hermetically sealed in a glass envelope. The reeds are arranged so that they are normally open (non-conducting). When a magnetic field is applied, the reeds align and the switch closes (conducting). Reed magnetic sensors are used in various applications, including security systems, door and window sensors, and automotive sensors.

Magnetic Sensor / Reed Switch :
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