Premium
The Design and Construction of a Differential Refractometer for Measurements on Coloured Solutions
Author(s) -
Atherton E.,
Cowgill E.
Publication year - 1954
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1954.tb02023.x
Subject(s) - refractometer , prism , monochromatic color , optics , differential (mechanical device) , refractive index , minimum deviation , spectrometer , materials science , light beam , physics , thermodynamics
A differential refractometer, suitable for the measurement of refractive indices of dyes, is described and some of its uses are indicated. The instrument is of the prism type, utilising a small spectrometer to provide monochromatic light. Refractive index values are obtained by means of a rotating mirror driven by a differential screw, which cancels the deviation conferred on the light beam by the dye solution. Several advantages of the instrument for measurements in spectral regions of maximum absorpation are discussed.