A Hall effect sensor enables contactless position sensing by detecting changes in the magnetic field around it. When the sensor is placed near a moving magnetic field, such as a magnet attached to a moving object, it can measure the changes in the magnetic field strength. By analyzing these changes, the sensor can determine the position of the moving object without the need for physical contact. This contactless method of sensing is particularly useful in applications where physical contact is not desirable or feasible, such as in automotive, industrial, and consumer electronics applications.
