Electrodynamometer

Electrodynamometer

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Description
The Siemens electrodynamometer was developed by the German physicist, Werner von Siemens, in 1880, and used for measuring either direct or alternating electric current. The form was widely used until the 1920s when it was replaced by the more convenient direct reading meter patented by Edward Weston. The inscription on this example reads “Queen & Co. Makers Phila.”
Ref: Alfred W. Wiener, “Electrodynamometers,” in Electric Power 8 (July 1895): 111-113.
James W. Queen & Co., Catalog of Electrical Testing Apparatus (Philadelphia, 1887), p. 11.
Location
Currently not on view
Object Name
electrodynamometer
Measurements
overall: 32 cm x 19.5 cm; 12 19/32 in x 7 11/16 in
overall: 11 9/16 in x 8 1/2 in x 8 in; 29.36875 cm x 21.59 cm x 20.32 cm
ID Number
1996.0162.02
accession number
1996.0162
catalog number
1996.0162.02
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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