How Does a Hall Effect Sensor Work:

[Eleanor Harper 0]

Here’s how a Hall Effect sensor works:

• Current Flow: In the core of a Hall Effect sensor, there is a thin strip or plate made of semiconductor material, typically silicon. When an electric current flows through this material, it consists of moving charged particles, usually electrons;
• Applied Magnetic Field: When an external magnetic field is introduced perpendicular to the direction of the current flow within the semiconductor material, it exerts a force on the moving charged particles (Lorentz force). The force causes the charged particles to deflect sideways;
• Hall Voltage Generation: Due to this deflection, an electric potential difference (voltage) is created across the semiconductor material, perpendicular to both the current direction and the magnetic field direction. This voltage is known as the Hall voltage;
• Measurement and Output: The Hall Effect sensor has electrodes positioned to detect this Hall voltage. It converts the Hall voltage into an electrical signal that can be measured and interpreted. Depending on the sensor type (unipolar or bipolar), this output can be either digital or analog;
• Magnetic Field Strength: The magnitude of the Hall voltage is directly proportional to the strength of the applied magnetic field. As the magnetic field strength increases, the Hall voltage also increases.

Click here to find out more: https://technetronelectronics.com/how-to-use-a-hall-effect-sensor-with-an-arduino/