Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 349
a galvanometer be slowed down, ordamped, so that it may quickly come to rest. This may be accom-plished either by mounting vanes on the system so that the air in anenclosed chamber reduces the motion, or by electromagnetic damp-ing by means of eddy currents. For example, in a DArsonval… … Fig. 20. Ballistic DArsonval Galvanometer with Telescope and ScaleCourtesy of Leeds and Northnip Company, Philadelphia galvanometers w^here certainty of the zero point is important. Itis evident that any damping reduces the sensibility of a galvanometer.Some galvanometer suspensions are damped so…
Electrical engineering
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