Universal Magnetometer with Dip Circle
date: label: Date made
content: 1912
name: label: maker
content: Carnegie Institution of Washington. Department of Terrestrial Magnetism
notes: label: Description
content: Universal magnetometer marked "D.T.M. C.I.W. N° 19." Designed and built by the Department of Terrestrial Magnetism of the Carnegie Institution of Washington in 1912, it incorporates an astronomical telescope and magnetometer for the determination of magnetic declination and horizontal intensity, and a dip circle with a Lloyd-Creak attachment for the determination of inclination and intensity. It is relatively light and easy to manipulate. It was used for a few years and then set aside when the universal magnetometer with earth inductor came into use.
label: Description
content: This magnetometer was probably transferred to the U.S. Coast and Geodetic Survey after the Carnegie Institution closed its geomagnetic program. The U.S. Geological Survey acquired it in 1973, when it took over the geomagnetic program of the federal government, and transferred it to the Smithsonian in 1982.
label: Description
content: Ref: J. A. Fleming, "Two New Types of Magnetometers Made by the Department of Terrestrial Magnetism of the Carnegie Institution of Washington," <i>Terrestrial Magnetism</i> 16 (1911): 1-12.
label: Description
content: Carnegie Institution of Washington, <i>Land Magnetic Observations, 1911-1913</i> (Washington, D.C., 1915), pp. 7-8.
label: Location
content: Currently not on view
place: label: Place Made
content: United States: District of Columbia, Washington
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Science & Mathematics
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Department of Interior, U.S. Geological Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0671.03
label: accession number
content: 1982.0671
label: catalog number
content: 1982.0671.03
objectType: label: Object Name
content: magnetometer
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: wood (part material)
label: Measurements
content: overall: 11 3/4 in x 8 1/2 in x 18 in; 29.845 cm x 21.59 cm x 45.72 cm
label: Measurements
content: overall: 10 1/2 in x 2 1/4 in x 11 1/4 in; 26.67 cm x 5.715 cm x 28.575 cm