Electromagnetic tracking is a technology that uses electromagnetic fields to determine the position and orientation of objects in space. It typically involves a transmitter that generates a magnetic field and sensors that detect changes in this field. By measuring these changes, the system can accurately track the movement of tools or devices in real-time. This method is commonly used in various fields, including surgery, virtual reality, and robotics. It allows for precise navigation and control, making it valuable for applications where accuracy is crucial, such as in medical procedures or 3D modeling.