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Do You Know Hall Effect Sensor

Sep 29, 2017

A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field. Hall effect sensors are used for proximity switching, positioning, speed detection, and current sensing applications. Application:Position sensing, Direct current (DC) transformers, Automotive fuel level indicator,Keyboard switch.

Hall Effect Sensor


A Hall effect sensor may operate as an electronic switch.

· Such a switch costs less than a mechanical switch and is much more reliable.

· It can be operated up to 100 kHz.

· It does not suffer from contact bounce because a solid state switch with hysteresis is used rather than a mechanical contact.

· It will not be affected by environmental contaminants since the sensor is in a sealed package.

In the case of linear sensor (for the magnetic field strength measurements), a Hall effect sensor:

· can measure a wide range of magnetic fields

· is available that can measure either North or South pole magnetic fields

· can be flat

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