dc.contributor.author	Ibrahim, Mayza Mohamed Hassan	cs
dc.contributor.other	Petrík Stanislav, doc. Ing. CSc. :55508	cs
dc.date.accessioned	2026-01-15T18:59:43Z
dc.date.available	2026-01-15T18:59:43Z
dc.date.committed	2024-10-05T00:00:00Z	cs
dc.date.defense	2025-11-12T00:00:00Z	cs
dc.date.issued	2025-11-12T00:00:00Z	cs
dc.date.submitted	2018-03-28T00:00:00Z	cs
dc.description.abstract	This doctoral thesis presents the design, fabrication, and experimental evaluation of three innovative optical fiber sensors developed for monitoring critical automotive fluids. The first sensor detects moisture content in glycol-based brake fluid using nanomaterial-enhanced optical fibers. Sensitivity was significantly improved through the application of silica nanofibers and aerogels, with further enhancement achieved by introducing an air gap. The second sensor measures liquid level using refractive index contrast at discrete immersion points, demonstrating fast dynamic response and improved signal reliability under laboratory conditions. The third sensor distinguishes between gasoline and diesel based on their optical properties, offering a compact, low-cost concept for misfueling prevention. All sensors were evaluated in terms of repeatability and measurement uncertainty, with theoretical assessments addressing temperature influence and practical protection strategies. The results demonstrate the sensors' capability for real-time fluid monitoring and highlight their potential as scalable, dielectric-safe alternatives to conventional electronic systems in future automotive applications.	cs
dc.description.abstract	This doctoral thesis presents the design, fabrication, and experimental evaluation of three innovative optical fiber sensors developed for monitoring critical automotive fluids. The first sensor detects moisture content in glycol-based brake fluid using nanomaterial-enhanced optical fibers. Sensitivity was significantly improved through the application of silica nanofibers and aerogels, with further enhancement achieved by introducing an air gap. The second sensor measures liquid level using refractive index contrast at discrete immersion points, demonstrating fast dynamic response and improved signal reliability under laboratory conditions. The third sensor distinguishes between gasoline and diesel based on their optical properties, offering a compact, low-cost concept for misfueling prevention. All sensors were evaluated in terms of repeatability and measurement uncertainty, with theoretical assessments addressing temperature influence and practical protection strategies. The results demonstrate the sensors' capability for real-time fluid monitoring and highlight their potential as scalable, dielectric-safe alternatives to conventional electronic systems in future automotive applications.	en
dc.format	147 p. (48436 words)	cs
dc.identifier.uri	https://dspace.tul.cz/handle/15240/178393
dc.language.iso	AN	cs
dc.subject	Optical fiber sensor	cs
dc.subject	electrospinning	cs
dc.subject	silica nanofibers	cs
dc.subject	gum arabic	cs
dc.subject	silica aerogel	cs
dc.subject	intensity modulated optical fiber sensor	cs
dc.subject	refractive index	cs
dc.subject	optical properties of nanofibers and aerogel	cs
dc.subject	humidity	cs
dc.subject	moisture sensors	cs
dc.subject	air gap	cs
dc.subject	and sensitivity.	cs
dc.title	Innovative Optical Fiber Sensors for Automotive Fluid Monitoring	cs
dc.title.alternative	Innovative Optical Fiber Sensors for Automotive Fluid Monitoring	cs
dc.type	diplomová práce	cs
local.degree.abbreviation	Doktorský	cs
local.identifier.author	M24000189	cs
local.identifier.stag	47678	cs

Innovative Optical Fiber Sensors for Automotive Fluid Monitoring

Title Alternative:Innovative Optical Fiber Sensors for Automotive Fluid Monitoring

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