Sökning: "fiber sensor"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden fiber sensor.

  1. 1. Applications of monolithic fiber interferometers and actively controlled fibers

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Patrik Rugeland; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber; fiber Bragg grating; micro-structured fiber; add drop multiplexer; fiber interferometer; microwave photonics; temperature sensor;

    Sammanfattning : The objective of this thesis was to develop applications of monolithic fiber devices and actively controlled fibers. A special twin-core fiber known as a ‘Gemini’ fiber was used to construct equal arm-length fiber interferometers, impervious to temperature and mechanical perturbations. LÄS MER

  2. 2. Hydrogel-based pH-sensors Development and characterisation of optical and electrical pH sensors based on stimuli-responsive hydrogels

    Detta är en avhandling från Sundsvall : Mid Sweden University

    Författare :Krister Hammarling; Mittuniversitetet.; [2019]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrogel; fiber optics; printed electronics; pH; sensor;

    Sammanfattning : The ability to measure the chemical parameter pH is of high importance in many areas. With new government regulations and evolving markets, there is a strong motivation for improving such measurements and conducting research on new types of pH sensors and sensor materials. LÄS MER

  3. 3. Laser processing of Silica based glass

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Patrik Holmberg; KTH.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber Bragg Gratings; photosensitivity; Glass; laser machining; optical fibers; fiber sensor; Physics; Fysik;

    Sammanfattning : The main topic of this thesis work is photosensitivity and photo-structuring of optical fibers and bulk glass. Although research in the field of photosensitivity in glass and optical fibers has been ongoing for more than three decades, the underlying mechanisms are still not well understood. LÄS MER

  4. 4. Fibre flocculation during twin-wire roll forming

    Detta är en avhandling från Stockholm : Fiber- och polymerteknologi

    Författare :Roger Bergström; KTH.; [2003]
    Nyckelord :;

    Sammanfattning : At the division of Paper Technology a forming unitconsisting of headbox, forming roll unit and reservoir systemfor suspension recirculation has been constructed, with themain purpose to experimentally study the paper forming event byvisually following the fibre flow phenomena in the formingzone.The effect of various running parameters upon the pressuredistribution, which is in correlation to the flow phenomenaoccuring during forming, has been studied with a flush mountedpressure sensor. LÄS MER

  5. 5. Controlled Polymer Grafting from Nanoparticles for the Design of Dielectric Nanocomposites

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Martin Wåhlander; KTH.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The interest for polymeric nanocomposites has rapidly grown during the last decades, fuelled by the great potential and superior properties of nanoparticles (NPs). The production volumes of commercial NPs have increased exponentially during the last ten years, and the quality has been significantly improved. LÄS MER