Electronic distance meter (EDM)

  • To measure horizontal distance, sloping distance and vertical distance between two points.
  • To get the elevation of the remote object.
  • To set the point at a predetermined distance along grid lined.
  • To align the electronic plots or towers and columns of the industrial building.
  • EDM instruments are classified according to the type of carrier wave employed.
  • Instruments using light or IR waves are classified as electro-optical instruments.
  • Instruments based on radio waves are generally called microwave instruments.
  • These instruments are now obsolete within the surveying industry being replaced by total station technology.
Electronic distance meter

Electronic distance meter

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