EDM (Wild DI 10)
notes: label: Description
content: The Wild DI 10 Distomat, one of the first infrared EDMs on the market, used a gallium-arsenide light-emitting diode, and had a digital readout. Wild began experimenting with gallium-arsenide diodes in 1963. These diodes used very little power, and their infrared radiation could be directly modulated in intensity.
label: Description
content: In 1965, Wild began a collaboration with the Societé d'Études, Recherches et Constructions Electroniques (SERCEL) in Nantes, Frances, which was working on the same problem. By the end of 1966, they had a prototype that could measure 912 meters in misty weather. The first production models arrived in the United States in October 1969. The DI 10 was small (17.7 kg plus batteries) and convenient, and could "span 1 to 1000 meters perfectly (with 1 cm accuracy)." It could be ordered with, or retrofitted to, any Wild T-2 theodolite, or used as a separate measuring system with the tilting base. New, it cost $6,850.
label: Description
content: By February 1971 there were more than 1,000 units in service; by June 1973 this number had increased to nearly 2,000. The DI 10 at the Smithsonian belonged to surveyors in Tennessee, who bought it new in 1971. The case for the control unit is marked "11729." The aiming head is marked "WILD HEERBRUGG Made in Switzerland 51729."
label: Description
content: Ref: Wild, <i>Infra-red Distancer Wild DI 10 Distomat Instructions for Use</i>.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Surveying and Geodesy
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content: Measuring & Mapping
publisher: label: Related Publication
content: Wild. Infra-red Distancer Wild DI 10 Distomat Instructions for Use
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.0132.01
label: catalog number
content: 2001.0132.01
label: accession number
content: 2001.0132
objectType: label: Object Name
content: electronic distance measurer, Wild Di-10, control unit
physicalDescription: label: Measurements
content: overall: 43 cm x 36.5 cm x 22 cm; 16 15/16 in x 14 3/8 in x 8 21/32 in