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Introduction to Surveying
Surveying With Light and Microwave EDMs
Description
Electronic distance measuring instruments, or EDMs, help surveyors measure distance with electromagnetic signals. The instrument sends a signal to a target and then calculates how long it takes to return. This makes EDMs a precise tool for modern surveying.
EDMs use two main signal types: light w...
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Transcript
Electronic Distance Measuring Instruments (EDM) measure distances precisely using either light waves or microwave signals.
Both methods send an electromagnetic signa...
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