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Moving Coil Mirror Galvanometer (The Chicago Laboratory Supply and Scale)

University College

Three horseshoe magnets with mirror supported on top of box between poles; suspended needle/mirror unit visible through flat glass plate on front of box; tripod legs with leveling screws and 2 terminals on front legs.

Accession Number: 2009.uc.20

Alternative Name: D’Arsonval Galvanometer

Primary Materials: Metal


Old Inventory Number = “uc20”; marked “The Chicago Laboratory Supply and Scale Co.” on front of box.

Dimensions (cm): Height = 28, Width = 14, Length = 14


The most common instrument for measuring electrical currents. This particular galvanometer “possesses the distinct advantage of being practically independent of the earth’s magnetic field and of magnetic disturbances of all kinds.” D.C. Miller (1903) Laboratory Physics: A student’s Manual for College and Scientific Schools. Boston: Ginn & Co., publishers. p. 287.


Associated Instruments:


The Chicago Laboratory Supply and Scale Co.

Date of Manufacture: c. 1890


Additional Information and References:

Historical Notes: