Sökning: "Reflector"

Visar resultat 1 - 5 av 58 uppsatser innehållade ordet Reflector.

  1. 1. Making nets more acoustically visible : Floats as passive mitigation measures to reduce bycatch of harbour porpoise (Phocoena phocoena) in gillnets

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Frida Rosshagen; [2023]
    Nyckelord :toothed whales; harbour porpoise; Phocoena phocoena; incidental capture; bycatch; fisheries; fishing gear; ; gillnet; mitigation; reduction; low-cost; passive acoustic reflector; float;

    Sammanfattning : Incidental capture in fishing gear is today affecting at least 112 marine mammal species worldwide and for many smaller toothed whale species (Odontocete), gillnets are considered to be the largest problem. Although some effective mitigation measures exists, these are often context specific and many might be hard to implement due to reasons such as high costs and maintenance. LÄS MER

  3. 2. Automation of High-accuracy Marking Tasks at MAX IV using the Quadrupedal Robot Spot

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

    Författare :Sebastian Gulz-Haake; Nils Karlbrink Malmquist; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : When installing new research equipment at the synchrotron research laboratory MAX IV, a final positional accuracy of tens of microns is usually needed. To obtain that accuracy, initial reference points must be placed within 2 mm from the nominal target points in CAD, in a process referred to as bluelining. LÄS MER

  4. 3. Automatic testing of optical sight adjustment screws by a robotic arm

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

    Författare :Jonas Gabrielsson; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : In this thesis the automation of an optical sight validation process was studied. The goal was to find a solution for controlling the position of a red dot in a red dot sight. A red dot sight is a non-magnifying reflector sight in which the user sees a red dot instead of a reticle. LÄS MER

  5. 4. Validation of Quasi-Optical Antireflective Structures for Radar Lenses through Experimentation and Simulation

    Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Jeslin Preetha Sam Oliver; Simbarashe Tongai Makonese; [2023]
    Nyckelord :;

    Sammanfattning : This study focuses on designing, developing, and testing 3D-printed radar lenses with varying heights of Anti-Reflective (AR) structures (0.75mm, 1mm and 1.25mm). Radar lenses are essential to improve signal transmission and reception for radar systems. LÄS MER

  7. 5. Deformationsmätning av kubhörnsreflektorer med fotobaserad skanning och terrester laserskanning

    Kandidat-uppsats, Högskolan i Gävle/Samhällsbyggnad

    Författare :Mathias Erkkilä; Torkel Pettersson; [2022]
    Nyckelord :close-range photogrammetry; terrestrial laser scanning; deformation measurement; corner reflectors; InSAR; fotobaserad skanning; Terrester laserskanning; deformationsmätning; kubhörnsreflektor; InSAR;

    Sammanfattning : Kubhörnsreflektorer används som måltavlor med kontinuerlig och identifierbar reflekterad signalstyrka vid fjärranalys, bland annat för tekniken ”interferometric synthetic aperture radar” [InSAR]. Kubhörnsreflektorer tillämpas exempelvis för bevakning av sättningar i jordytan och kalibrering av [SAR]-system (”synthetic aperture radar”). LÄS MER