Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 78
nt for yearsand years. A bifilar suspension acts also in the same way as a torsion wire,but there is no strain on the filaments except a tensile strain. The tangent galvanometer is an example of the control by theearths magnetic field, and the illustration (Fig. 58) shows an instru-ment by Ayrton… … Fig. 59 MaQ[netic Control Instruments the magnetic tielcl are the measuring coils : these coils tend to twistthe spheroid into line with their own axis. The side screws are foradjusting the held. In the moving coil instruments, so common now, we have threeelements to deal with : the moving coil…
Electrical engineering · Electric power
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