Abstract
An optical fiber tip sensor based on a Fabry–Perot interferometer is proposed for the detection of ethanol in the gas phase. The sensor is fabricated by fusion splicing one end of the suspended core fiber to a single mode fiber, whereas the other end is kept open to enable the interaction between the light propagating in the suspended core and the ethanol gas molecules. The sensor was tested with different percentages of ethanol, exhibiting a linear response between 0 and 100 wt.%, with a sensitivity of 3.9 pm/wt.%. The proposed sensor, with a length of a few hundred micrometers, can be an alternative solution for the detection of gaseous ethanol in foods or beverages, such as wines and distilled drinks.
Highlights
Bierlich, J.; Kobelke, J.; Ferreira, M.S.Volatile organic compounds (VOCs) are often associated with the quality of alcoholic drinks
As the sensor is subjected to atmospheres with different concentrations of ethanol, a ethanol-water mixtures was done, starting with pure ethanol
The due to an increase in the refractive index of the atmosphere with the increase in ethanol mixtures were prepared with a magnetic andinlet to stabilize during
Summary
J.; Kobelke, J.; Ferreira, M.S. Volatile organic compounds (VOCs) are often associated with the quality of alcoholic drinks. One of the most important and well-known VOCs in distilled beverages is ethanol. In Europe, the quantity of ethanol in beverages depends on the product category, which is categorized by EU regulations [1]. Besides fulfilling these specific regulations, the drinking industry must have precise control of ethanol quantity in beverages to refine and contribute to its aroma [2]. The development of sensing devices for ethanol detection in beverages is of utmost importance to allow reliable and real-time monitoring, especially during the different stages of fermentation
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
