What is the hall effect sensor?
Hall effect sensor is a small device mounted on a circuit board that can measure a magnetic field. It is designed around the principles of the hall in which the magnetic field perpendicular to the electrical current on the perimeter creates a voltage on the other side. The sensor can be in the form of a single chip together with the components to compensate for temperature changes. Amplifier of the signal is required to output accurate measurement. There are sensors of the effects of analog and digital output halls and both are used in computer, automotive and industrial control systems. The voltage rises with the magnetic field intensity, and if no field is turned on, the zero voltage represents the power passing value. Sensor Output versus input is described by transmission functions that are responsible for output without magnetic fields, sensitivity and its output range.
with a sensor of the digital output hall effect is only definedFF. The analog sensor can be converted to digital by means of a specific circuit, the Schmitt trigger. States only change when a predetermined level is achieved; Otherwise, the output does not increase or reduce unless the magnetic field changes sufficiently. Digital sensors can also be powered by supplies that are either regulated or unregulated, depending on what they are used for.
A small package of the integrated circuit is all that is needed to place the Hall effect sensor along with associated electronics. Real sensors are almost too small to be seen and can be placed anywhere on the circuit board. At the same time, they can tolerate shock, vibrations and extreme temperature ranges, so Hall effect sensors can be MyED for speed sensing in industrial control systems. They can also detect the strength and direction of the magnetic field, allowing direction detection. Use as a position sensor is also possible.
Electronics with Hall effect sensor is included in the carBrake and ignition systems. Mobile phones and other portable devices also have them to improve various features and applications that require position, movement and speed sensing. Hall effects also cost less than similar sensors, so electronics can be obtained and developed economically.