Sökning: "Laser vibrometry"

Hittade 3 uppsatser innehållade orden Laser vibrometry.

  1. 1. Detecting Pollutants Using Vibrations : Laser Doppler Vibrometry as a Non-Invasive Soil Organism Health Monitoring Method

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Kristoffer Wilson; [2023]
    Nyckelord :Vibrometer; Biotremology; Imidacloprid; Ants;

    Sammanfattning : Due to a lack of in-situ methods capable of detecting sub-lethal effects of pollutants on soil organisms, many polluted environments are not identified prior to pollution-induced changes in the soil fauna. Therefore, there is a need to develop new non-invasive methods to measure the health of soil organisms. LÄS MER

  3. 2. Fretting tests on connector terminals

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Marcus Magnusson; [2018]
    Nyckelord :Fretting; Corrosion; Laser vibrometry; Connector; Vibration; Technology and Engineering;

    Sammanfattning : Fretting is a complex set of mechanical and electrical mechanics that occurs at the contact surface between two vibrating objects. It is widely present in electrical connectors close to combustion engines due to the constant exposure to vibrations. Fretting is an extensive problem in the automotive industry but little research is done. LÄS MER

  4. 3. Target recognition by vibrometry with a coherent laser radar

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Andreas Olsson; [2003]
    Nyckelord :Reglerteknik; target recognition; vibrometry; coherent laser radar; laser vibration sensing; Doppler technique; time-frequency analysis; Reglerteknik;

    Sammanfattning : Laser vibration sensing can be used to classify military targets by its unique vibration signature. A coherent laser radar receives the target´s rapidly oscillating surface vibrations and by using proper demodulation and Doppler technique, stationary, radially moving and even accelerating targets can be taken care of. LÄS MER