Sökning: "reflector"

Visar resultat 11 - 15 av 58 uppsatser innehållade ordet reflector.

  1. 11. Simulation of Precise Automatic Radio Frequency GroundStation Tracking For S-Band Satellites

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Akila Wajirakumara; [2021]
    Nyckelord :;

    Sammanfattning : Satellites are often known for possessing invariable motion causing its apparent position to drift in the sky from the perspective of a ground station. If these irregular drifts are not compensated, the performance of the communication link would be greatly affected. Hence, the satellite motion has to be tracked by the ground station antenna. LÄS MER

  3. 12. Mobile Floor-Marking Robot, utilizing Feedback from Laser Tracker

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Lisa Klinghav; [2021]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Equipment installation at MAX IV, a state-of-the-art particle accelerator in Sweden, requires accuracy and precision in the range of micrometers. The measurement technology used is laser tracking, with which the position of a movable reflector is determined, by reflecting the laser beam emitted from a stationary tracker. LÄS MER

  4. 13. Environmental Impact of a Portable Photo Flash - Using Life Cycle Assessment Methodology

    Master-uppsats, KTH/Kemiteknik

    Författare :Tim Storfeldt Moqvist; [2020]
    Nyckelord :LCA; Sustainability; Chemistry; Photoflash; Photography; Hållbarhet; Livscykelanalys; Kemi; Foto; Fotoblixt; Lampa;

    Sammanfattning : This study was about performing an LCA on a portable flash unit, C1, made by Profoto. The goal was to get an overview of the environmental impact of the C1 and to investigate hotspots in the production and/or use phase of the C1. LÄS MER

  5. 14. Future solar kitchen design with backup facility

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Mohanad Al-Daghestani; [2020]
    Nyckelord :Scheffler reflector; Biogas; Solar cooking; Nairobi Kenya; National park;

    Sammanfattning : Firewood has been used as fuel since the beginning of mankind resulted in health problems and deforestation. The solar cooking technology has been first developed in 1767 by Horace-Bénédict de Saussure but did not find development due to lack of reliability. Studies showed the necessity of having a backup facility. LÄS MER

  7. 15. Undersökning av en enaxlig akustisk levitator

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Klara Cider; Emma Westlund; [2020]
    Nyckelord :;

    Sammanfattning : En enaxlig akustisk levitator, bestående av en Langevin-givare och en plan reflektor, kan bilda en stående våg vilket möjliggör levitering av små föremål. Enligt teorin bildas en stående våg om avståndet mellan givare och reflektor är en hel multipel av halva våglängden för den genererade vågen. LÄS MER