Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 30
needle, and hencefar away from it, reduces the sensitiveness of the instrument. GALVANOMETERS 449 The Sine Galvanometer.—This type of instrument has avertical coil which may be rotated around a vertical axis, so thatit can be made to follow the magnetic needle in its deflections. In the sine… … Fig. 523.—Central Scientific Co. universal tangent galvanometer. This instrument may beused as a tangent, Gaugain, Helmholtz-Gaugain, sine, cosine, Wiedemann or detectorgalvanometer. The coils, which slide on a beam parallel to the one carrying the needle box,are wound on brass rings 12 inches in…
Electrical engineering
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