Sökning: "gas sensors"

Visar resultat 11 - 15 av 108 uppsatser innehållade orden gas sensors.

  1. 11. Light-activated gas sensing with copper oxide micro- and nanostructures

    Kandidat-uppsats, KTH/Fysik

    Författare :Gabriel Yousef; Carl Persson; [2022]
    Nyckelord :Gas sensors; Gas sensing; Light-activation; Copper oxide; Cuprous Oxide; Nanomaterials;

    Sammanfattning : Metal oxide semiconductor (MOS) gas sensors have proven to be useful in many applications, ranging from detection of hazardous gases to monitoring of air quality. The demand for power efficient and high performance gas sensors has seen an increase in situations facing contemporary society. LÄS MER

  3. 12. Data-driven Dynamic Baseline Calibration Method for Gas Sensors

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

    Författare :Cheng Yang; [2021]
    Nyckelord :CO2 gas sensing; drift; dynamic baseline calibration; time series analysis; data-driven modeling; clustering; classification; CO2 gasavkänning; drift; dynamisk baslinjekalibrering; tidsserieanalys; datadriven modellering; kluster; klassificering;

    Sammanfattning : Automatic Baseline Correction is the state-of-the-art calibration method of non-dispersive infrared CO2 sensing, which is the standard CO2 gas monitoring method. In this thesis, we improve it by introducing the dynamic baseline based on environmental data. LÄS MER

  4. 13. Köldmedieläckage i kylanläggningar : En utredning om alternativa metoder för att detektera läckage

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Christian Westerberg; Henric Gustavsson; [2021]
    Nyckelord :Kylteknik; kylanläggning; läckage; läckagedetektering; köldmedium;

    Sammanfattning : Commercial refrigerant industry is one of the biggest contributing factors toglobal warming according to a study by Mota-Babiloni et al. (2015). Studies have shown that emissions of fluorinated greenhouse gases' effect on global warming can increase from 1.3% (2004) to 7. LÄS MER

  5. 14. Braking with a Directional Control Valve in a Hydraulic Open-Loop Transmission

    Master-uppsats, Linköpings universitet/Fluida och mekatroniska system

    Författare :Jonathan Karlborg; Emil Sten; [2021]
    Nyckelord :Directional Control Valve DCV ; Open-loop Hydraulic Transmission; Brake function;

    Sammanfattning : This project presents an investigation if natural braking characteristics could be achieved on an open-loop hydraulic transmission without a brake valve. The goal with the simplified system was to utilize the directional control valve to achieve similar functionality as the brake valve does in the conventional system. LÄS MER

  7. 15. Battery Guard : Designing a Charging Station for E-bikes in Dutch Public Environments

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Författare :Måns Matthias; [2021]
    Nyckelord :;

    Sammanfattning : The e-bike trend is getting bigger and bigger all around the world, in Europe the number of new e-bikes sold during 2019 exceeded 3,5 million accounting for 17% of all bike sales (CONEBI, 2020). In the Netherlands it is more than a trend, e-bikes are everywhere and since 2018 there are more new e-bikes sold in the Netherlands than new regular bikes (Bovag, 2020). LÄS MER