How Do Hall Effect Current Sensors Work? – Industrial and Manufacturing Insights

https://industrialandmanufacturinginsights.com/2023/02/28/how-do-hall-effect-current-sensors-work/

The Ts is a rectangular thin piece of semiconductor material such as indium arsenide and gallium arsenide. It’s got two conductors that carry current one, and a voltage measuring conductor the second.

The Lorentz force redirects electrons away from the conductors that carry current to another side when it is applied a magnetic field perpendicularly on the surface of the semiconductor. The result is the accumulation of and decrease in the charge on one side in contrast the magnetic field. It creates an electric field that is applied to the semiconductor. This creates a voltage gap between two sides that the voltage-measuring conductor can measure.

The magnitude of the current generated by an Hall effect sensor is proportional to intensity of the magnetic field and it’s current flow across the conductor. When a sensor is able to measure its voltage output, the strength of the magnetic field and its it’s polarity can be assessed.

Current sensor Hall effects come with benefits such as contact-free sensing and excellent accuracy. These make these sensors suitable for different sectors, such as automotive, industrial, and medical.

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