A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 260
coil is moved soas to follow the needle until it is parallel with thecoil. Under these circumstances, the strengthof the deflecting currents in any two differentcases is proportional to the sines of the angles ofdeflection. A form of sine galvanometer is shown in Fig.276. The vertical wire coil is… … Sine Galvanometer. necessary to bring the needle to zero is measured.The current strength is proportional to the sineof the angle measured on this circle, throughwhich it is necessary to move the coil M, from its position when the needle is at rest in the plane ofthe earths magnetic meridian, until…
Electricity · Electrical engineering
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