30 April 1999 Optical refractometer for complex refractive index measurement in UV-NIR range
Author Affiliations +
Proceedings Volume 3730, Optoelectronic and Electronic Sensors III; (1999) https://doi.org/10.1117/12.346849
Event: Optoelectronic and Electronic Sensors III, 1998, Jurata, Poland
Abstract
An optical system for measuring the spectrum of the complex refractive index of liquids in the UV-NIR range is described. The presented optical fiber measurement method allows remote control of the index. The developed refractometer has been tested with samples from different sections of paper mill and chemical pulp mill production processes. The obtained accuracy of the real part refractive index measurements was 10-5 with resolution 2 (DOT) 10-6 (for the wavelength in range 300 - 920 nm with spectral resolution better than 0.5 nm). The absorption corresponding to the imaginary part of the refractive index is measured in 0 divided by 20 dB/cm range with 0.01 dB/cm resolution.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jerzy Plucinski, Jerzy Plucinski, Jukka A. Raety, Jukka A. Raety, Eino Keranen, Eino Keranen, } "Optical refractometer for complex refractive index measurement in UV-NIR range", Proc. SPIE 3730, Optoelectronic and Electronic Sensors III, (30 April 1999); doi: 10.1117/12.346849; https://doi.org/10.1117/12.346849
PROCEEDINGS
4 PAGES


SHARE
Back to Top