Tangent galvanometer


  • Webster's Revised Unabridged Dictionary
    • Tangent galvanometer (Elec) a form of galvanometer having a circular coil and a short needle, in which the tangent of the angle of deflection of the needle is proportional to the strength of the current.
    • Tangent galvanometer (Elec) a galvanometer in which the sine, cosine, or tangent respectively, of the angle through which the needle is deflected, is proportional to the strength of the current passed through the instrument.
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In literature:

A Bradley tangent galvanometer is used, employing the coil of 160 ohms resistance.
"Scientific American Supplement, No. 492, June 6, 1885" by Various
The strength of different currents can be compared, and many interesting experiments performed with the tangent galvanometer.
"How Two Boys Made Their Own Electrical Apparatus" by Thomas M. (Thomas Matthew) St. John
In 1849 H. von Helmholtz devised a tangent galvanometer with two coils.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various