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 250
Fig. 82. Stationary Form ofTachometer Courtesy of James G. Biddle,Philadelphia 220 … MAI^AGEMENT OF DYNAMO-ELECTRIC MACHINERY 99 minals of this generator. The design is such that the voltage ofthe generator is proportional to its speed. The voltmeter is cali-brated in revolutions per minute and is, therefore, a direct-readingtachometer. A simple way to test the speed of a belted…
Electrical engineering
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