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 346
pot of light to another part of thescale. If a telescope is substituted for thelamp, an image of the reference pointof the scale may be made to coincidewith the cross wire of the telescopewhen no current is passing; and other parts of the scale willtake the place of the reference point when a… … Fig. 16. Diagram of Modern Lamp and Scale Galvanometer AttachmentCourttsy of Leeds and Northrup Company 310 JiJLECTRICAL MEASUREMENTS 15 is easier on the eyes, unless an excellent galvanometer mirror andtelescope are used. DArsonval Galvanometer. The DArsonval galvanometer is amodification and…
Electrical engineering
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