Sökning: "mätning laser"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden mätning laser.

  1. 1. Measuring Sprint Speed with Ultra-wideband Technology

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Johannes Arenander; [2023]
    Nyckelord :Speed; Sprint; Ranging; Ultra-wideband; Hastighet; Sprint; Distansmätning; Ultrabredband;

    Sammanfattning : Sprinting can be an important ability in sports, and there are many methods for measuring sprint performance. Two common methods are hand-held timing and fully automatic timing systems. However, hand-held timing is inaccurate due to reaction time, and fully automatic timing can be impractical since it involves complex equipment. LÄS MER

  3. 2. Spectral broadening of 4 mJ femtosecond pulses using a bulk multi-pass cell

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Saga Westerberg; [2023]
    Nyckelord :Lasers; Ultrashort; Nonlinear Optics; femtosecond; Multi-Pass Cell; Spectral broadening; pulse post-compression; Self phase modulation; Physics and Astronomy;

    Sammanfattning : Nonlinear optical effects can be used for spectral broadening, which the basis of the field of post-compression of laser pulses. When the intensity of light becomes high enough the refractive index becomes intensity dependent, and as the intensity often varies both with position and time so does the refractive index. LÄS MER

  4. 3. Laser Scattering for Fast Characterization of Cellulose Filaments

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Alexandra Konstantinidou; Saga Holmström; Susanna Hellberg; [2022]
    Nyckelord :Cellulose nanofibrils; Fibers; Sustainable development; Bio-based material; Characterization; Microscale; Microscopy; Small-angle light scattering; Laser diffraction; Cellulosananofibriller; Fiber; H˚allbar utveckling; Biobaserade material; Karakterisering; Mikroskala; Mikroskopi; Ljusspridning; Laserdiffraktion;

    Sammanfattning : Cellulosananofibriller (CNFs) hör till naturens mest fundamentala byggstenar och förser naturliga material, såsom den yttre cellväggen i trä, med en otrolig styrka och styvhet. Genom att imitera träets arkitektur öppnas möjligheter upp för tillverkning av nya, biobaserade och lättviktiga strukturella material med mekaniska egenskaper som överskrider de för glasfiber, metaller och legeringar. LÄS MER

  5. 4. A Platform for a Wheeler's Delayed-Choice Experiment in Optical Fiber

    Master-uppsats, Linköpings universitet/Informationskodning

    Författare :Gustaf Åhlgren; [2022]
    Nyckelord :Wheeler s delayed choice; wave-particle delayed choice; Sagnac interferometer; Mach-Zehnder interferometer; complementarity relation;

    Sammanfattning : Quantum mechanics has played a big role in the development of our understanding of the smallest things in the universe. It has provided descriptions for phenomena like single electrons or single photons, which are single particles of light. One of the most mysterious properties of quantum systems is the ability to behave as a particle or a wave. LÄS MER

  7. 5. Användning av laserprojiceringsteknik inom tillverkningsprocesser

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

    Författare :Omar Aldalati; [2021]
    Nyckelord :laser projection technology; quality; productivity; transformer; Hitachi-ABB; Faro; laserprojiceringsteknik; kvalitet; produktivitet; transformator; Hitachi-ABB; Faro;

    Sammanfattning : All companies strive for increased quality and productivity in their operations by streamlining resource use and / or using new technology. This has led them to try to find new technical solutions that can be integrated into production as part of the improvement process, and that can drive the improvement work in the company forward. LÄS MER