The light from the laser bounces back to the device and the tool uses the time it takes for the light to return to calculate the distance that the laser traveled.
Electronic distance measuring equipment.
Normally these used to measure long distances within 100km with their frequency range.
The electronic distance measuring equipment is differentiated into three types as microwave instrument infra red equipment and light wave equipment.
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The surveying equipment functions with the help of micro waves come under this category.
Electronic distance measurement edm is a method of determining the length between two points using electromagnetic waves.
Laser measure advanced 196ft teccpo mute laser distance meter with electronic angle sensor backlit lcd measure distance area volume and pythagoras carry pouch and battery included tdlm19p.
The resulting measurement is often shown on a digital screen on the device.
Edm is commonly carried out with digital instruments called theodolites.