Miller, Clarence Benwell, Welch, George Richard · leaf 14
reed would be hard to count at high fre- quencion and \\<->n\jy loads and tho inotrumont muat bo calibrated tocot a constant by which to multiply tho numbc- f r ntrokec3 U r rvlor-to find tho numbt-r of altornations skipped a minute. Tho conunutator stylo of oliprneter maybo used whoro many… … is attached to an ordinary speed counter and pressed against therotor shaft,Vvhile at the same time it is connoctod electrically,through a resistance to the source of current.The commutator is alsoconnected electrically to an ammeter as shown in the sketch ateove.If the rotoi revolves at…
Electric motors, Induction · Magnetic fields · Rotors · Theses
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