👉 Hektograph is a type of electromagnetic measurement device used in remote sensing and geophysics. It consists of a large coil (also called a magnetometer) that measures the magnetic field strength at different positions, which are then converted into electrical signals that can be analyzed to determine the location and size of objects or features within an area. The term is often associated with the measurement of magnetic fields in space or near Earth's surface, as it allows for precise measurements of magnetic flux density and direction.
