Magnetic field sensors are devices that detect and measure magnetic fields in their environment. They work by responding to the presence of magnetic forces, which can come from various sources, such as Earth's magnetic field or electrical currents. These sensors are commonly used in applications like navigation systems, automotive technology, and industrial automation. There are different types of magnetic field sensors, including Hall effect sensors and magnetoresistive sensors. Each type operates on distinct principles, allowing them to be used in various settings. Their ability to provide real-time data makes them essential for many modern technologies, enhancing functionality and safety.