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Physical Sciences Collection - Surveying and Geodesy

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EDM (Geodimeter Model 8)

Catalogue number:
1986.0395.06

Inscriptions:
"AGA CORPORATION GEODIMETER MODULATION SYSTEM BJERHAMMER Model 8 no. 81008 MADE IN U.S.A."

Dimensions:
10.5 inches high, 13 inches wide, 22 inches deep

Discussion:
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 belonged to the United States Coast and Geodetic Survey, and was probably used on the trans-continental traverse, a very precise measurement of the length and width of the United States.

Ref: AGA, Geodimeter Model 8 Operating Manual.

Further Information:

AGA
EDM

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