An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. Fig. 20.—Tangent Galvanometer. In order to overcome this difficulty, and for other mathematicalreasons, galvanometers have been invented in which the tangent, or lineof the angle of deflection, is proportional to the strength of currentmeasured. These are called tangent^ or sine^ galvanometers. The Tangent Galvanometer.—The tangent galvanometer consists,broadly speaking, of a ring having a groove on its edge filled with in- GALVANISM. A-225 sulated wire, and provided with a needle
An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. Fig. 20.—Tangent Galvanometer. In order to overcome this difficulty, and for other mathematicalreasons, galvanometers have been invented in which the tangent, or lineof the angle of deflection, is proportional to the strength of currentmeasured. These are called tangent^ or sine^ galvanometers. The Tangent Galvanometer.—The tangent galvanometer consists,broadly speaking, of a ring having a groove on its edge filled with in- GALVANISM. A-225 sulated wire, and provided with a needle, which must not be longer thanone-sixth of the diameter of the ring, hung or pivoted precisely in itscentre, as shown in Fig 19. This instrument, as shown in Fig. 20, is mounted on a hard-rubberbase, seven and three-eighths inches in diameter, provided with levelingscrews and anchoring points. The galvanometer consists of a magne-tized needle seven-eighths of an inch in length, suspended at the centreof a rubber ring, six inches in diameter, containing the coils. Thecoils are five in number, of the resis
Size: 1490px × 1677px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectuterus, bookyear1894
