Sentence Examples with the word interferometer

Puccianti, who measured it by the interferometer in the case of more than a hundred lines of different metals; he found its degree to differ much in different lines of the same spectrum.

He early directed his researches to the velocity of light and while in Cleveland invented his interferometer (see 14.693), which enabled him to measure distances by means of the length of light-waves.

Some other appliance in which interference with long difference of path is made use of, such as the interferometer of Fabry and Perot, or Lummer's plate (see Interference Of Light) .

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The echelon and interferometer serve only a limited purpose, but must be called into action when the detailed structure of lines is to be examined.