A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 411
vanometer is used in connection with the selenium-photometer. The light to be measured is placed. PIioJ 401 [Pho. at right angles to the scale L M, and the tube AB, directed towards it, and the galvanometer de-flection compared with the deflection obtainedwhen turned towards the standard candle.… … Fig. 4JO. Siemens Selenium Photometer. In determining the candle-power of an intenselight like the electric arc light, a large gaslightis used instead of a standard candle, and thephotometric power of this gaslight is carefullydetermined by comparison with a gas-jet photom-eter. (See Jet, Gas, Car…
Electricity · Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
