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 96
alibration, being measured by a standard alternating-current am-meter, such as an electrodynamometer. The indications of an instrument of the electromagnetic type,however, do not vary greatly with wave shape and frequency, andsuch instruments are practically correct for any ordinary waveshape and… … Fig. 75. MountedCoilof a Thomson Inclined-Coil Meter voltmeter is not large over the ordinary range of frequencies, andmay be computed for extreme frequencies from the measured valuesof resistance and inductance. A valuable feature of this type ofinstrument is its very small temperature…
Electrical engineering
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