Optic Sensor of high sensitivity for evaluation of combustible adulteration employing nets of long period

NOVELTY – The system has a light source (2) located at resonance peaks of recorded spectral range networks, where the light source with wide spectrum is consistent with range of wavelength. A sensor device is formed by an optical fiber tuned recording region. Two long chains are connected in series with each other such that a thinned region is formed between networks. An optical spectrum analyzer (3) is utilized for measuring displacement spectrum. A core and a shell of a fiber forms two arms of an interferometer. USE – Optical system for measuring variations in refractive index of liquid solutions in a fiber optic network. Can also be used for a flex-fuel vehicle. ADVANTAGE – The system increases resolution of measurement in a fiber optic network, and reduces optical loss during scattering of light in the liquid. DETAILED DESCRIPTION – An INDEPENDENT CLAIM is also included for a method for measuring changes in refractive index of liquid solutions. DESCRIPTION OF DRAWING(S) – The drawing shows a schematic view of an optical system. Corrugated unit (1) Light source (2) Optical spectrum analyzer (3)

Main Application Field

S03 (Scientific Instrumentation); V07 (Fibre-optics and Light Control); W01 (Telephone and Data Transmission Systems); X22 (Automotive Electrics)

INVENTORS:

CORDEIRO CRISTIANO MONTEIRO DE BARROS
OSORIO JONAS HENRIQUE
BIAZOLI CLAUDECIR RICARDO

540_ALTA SENSIBILIDADE

Patent number: BR201105063-A2

PATENT STATUS:

For information contact Inova Unicamp

FOR ADDITIONAL INFORMATION:

parcerias@inova.unicamp.br

+55 (19) 3521-5207 / 2607