AGA EDM (Geodimeter Model 8)

The Geodimeter Model 8, introduced in 1967, is a long-distance geodetic instrument with a helium-neon laser and transistorized circuitry. It used a 12-volt battery, weighed 51 lb., and cost about $16,000. It was assembled in Paramus, N.J., but the components were made in Sweden. This example is marked "AGA CORPORATION GEODIMETER MODULATION SYSTEM BJERHAMMER Model 8 no. 81008 MADE IN U.S.A." It belonged to the United States Coast and Geodetic Survey, and was probably used on the trans-continental traverse, a precise measurement of the length and width of the United States.
Ref: AGA, Geodimeter Model 8 Operating Manual.
Currently not on view
place made
Sverige: Stockholm, Stockholm
overall: 10 1/2 in x 13 in x 22 in; 26.67 cm x 33.02 cm x 55.88 cm
ID Number
accession number
catalog number
Credit Line
U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Geodetic Survey Division
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History


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