EDM (Electronic Distance Measurement)

Electronic Distance Measurement (EDM) is a technology used in surveying to precisely measure distances between two points. It works by sending an electromagnetic signal, usually a light or radio wave, from a device called a total station to a reflector placed at the target location. The device then calculates the distance based on the time it takes for the signal to travel to the reflector and back. EDM provides fast, accurate measurements essential for mapping, construction, and engineering projects, reducing the need for manual measurements and improving overall efficiency in land and infrastructure surveys.