Electrical instruments and testing; how to use the voltmeter, ohmmeter, ammeter, potentiometer, galvanometer, the Wheatstone bridge, and standard portable testing sets (1907)
Schneider, Norman H. (Norman Hugh), Hargrave, Jesse · New York, Spon & Chamberlain; [etc., etc.] · leaf 86
the moving system and renders itdead beat. The armature is not rigidly attachedto the pointer shaft, but has a flexible connectionof silk. The shaft itself takes the form of a scalebeam working on knife edges. The bearings forthe knife edges are so constructed that the leverage VOLTMETERS AND… … Fig. 52. G. E. Potential Indicators. A simple form ofvoltmeter and also of ammeter made by the Gen-eral Electric Company is illustrated in Fig. 52. Themovement of the armature in the solenoid is con-trolled by gravity, means of adjustment being bymeans of the balance weights shown in the illus- 64…
Electric testing · Electric apparatus and appliances
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-718-419.webp)
