ArticleSensors (Basel, Switzerland)2026
Low-Cost Ethanol Concentration Sensor Based on a Balloon-like Curved Optical Fiber in a Mach-Zehnder Interferometric Configuration.
Article in Sensors (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We report an optical configuration to measure the concentration of ethanol (EtOH) using a light-guiding mechanism based on optical fibers in a Mach-Zehnder-type interferometric configuration. The proposed configuration takes advantage of the high sensitivity of fiber optic interferometers, allowing variations in EtOH concentration to be detected from shifts in the interference patterns. The interferometric configuration was implemented using a single-mode optical fiber curved into a balloon shape. During the experiment, some spectral stability and hysteresis tests were performed on the device, obtaining good results. During the characterization stage for measuring EtOH concentration in the 40-71%
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