FAQ | Feb 23,2023
If a sensor uses the Hall effect to sense the presence of a magnetic field, the sensor is called a Hall effect sensor. The basic element of a magnetic sensor is the Hall element, and these sensors are usually packaged in a four-terminal housing where two terminals are control terminals and the other two are differential output terminals.
The control current is applied to the control terminal, while the output is observed at the differential output terminal. A basic Hall effect sensor converts magnetic fields into electrical signals. The magnetic system converts physical quantities such as position, velocity, current and temperature into magnetic fields, which in turn can be induced by Hall effect sensors.
Hall effect sensors are most notable for providing solid state reliability. Low power environment isolation package. In addition, Hall sensors will operate over a wide temperature range. Generate consistent activation points at the same time. Hall effect sensor is a kind of semiconductor device. It is manufactured using an integrated process. Hall effect sensors require electrical current to pass through the device. When there is a magnetic field generated by voltage, Hall sensor will realize its switching function. Finally, the relative strength of the magnetic field determines the voltage level in millivolts.
Hall effect sensors are made of silicon material and are mainly divided into two types, namely basic sensor and integrated sensor. Hall coefficient and current density of active element are two important parameters to be considered when making Hall effect sensor to produce high output voltage.
Therefore, high Hall coefficient and low resistance are two important requirements of Hall components. Some of the materials used to manufacture these sensor components include InSb, Ge, InAs, and GaAs.
--- END ---