Title :
Measurements of glycerine concentration in water solution by using long-period grating refractometer
Author :
Zhu, Yinian ; Shum, Ping ; Lu, Chao ; Swart, P.L. ; Lacquet, B.M. ; Chtcherbakov, A.A.
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
We measured the glycerine in water solution with different concentration by using a long-period grating. As a refractometer, it is desirable that the surrounding refractive index is the linear relationship with concentration of the solution. The results of measurements show that the linear range of glycerine concentration is from 0 to 40% with the transmission minimum shift, whereas it is from 0 to 20% with the wavelength minimum shift.
Keywords :
Bragg gratings; polymer solutions; refractive index measurement; refractometers; sensors; fiber Bragg grating; glycerine concentration; glycerine water solution; long-period grating; refractive index; refractometer; sensors; Africa; Capacitive sensors; Diodes; Etching; Fiber gratings; Optical attenuators; Optical refraction; Optical sensors; Refractive index; Wavelength measurement;
Conference_Titel :
Sensors, 2003. Proceedings of IEEE
Print_ISBN :
0-7803-8133-5
DOI :
10.1109/ICSENS.2003.1278969
