Sökning: "electromagnetic emissions"

Visar resultat 16 - 20 av 28 uppsatser innehållade orden electromagnetic emissions.

  1. 16. Investigation of electromagnetic compatibility (EMC) of low-voltage (<60V) DC electric motors in construction machinery application

    Master-uppsats, Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska fakulteten

    Författare :David Luong; Ibrahim Salloum; [2019]
    Nyckelord :EMC; brushed dc motor; arcing; inrush currents; X2Y capacitor; NTC thermistor; common mode ferrites; differential mode ferrites; grounding; cable placement; motor design parameters;

    Sammanfattning : The brushed DC motor is a source of electromagnetic emission that may cause interference. The main issues with brushed DC motor are arcing, which occurs between the brushes and commutator, and inrush current. It is possible to decrease the electromagnetic emissions by addressing the source (brushed dc motor) and the installation. LÄS MER

  3. 17. Innovative Methods for Welding Ultra High Strength Steel with Resistance Spot Welding

    Master-uppsats, KTH/Industriell produktion

    Författare :Rickard Aldén; [2018]
    Nyckelord :;

    Sammanfattning : Resistance spot welding (RSW) is the most frequently used method for welding thin sheets in manufacturing industries such as the automotive industry, because of the high productivity of RSW. In order to reduce CO2 emissions the automotive industry strives towards creating structures of light weight, this is partly achieved by the use of lightweight materials such as Aluminum and composite materials. LÄS MER

  4. 18. Electrolysis of chalcopyrite

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

    Författare :Regina Nemeth; [2018]
    Nyckelord :;

    Sammanfattning : Copper is one of the most important metals globally, due to its wide application range and excellent chemical properties. Today it is commonly produced from chalcopyrite concentrates by the pyrometallurgical route with high emissions of greenhouse gasses. LÄS MER

  5. 19. Flödeskalibrering : Analys av kalibreringsprocesser

    M1-uppsats, Luleå tekniska universitet/Drift, underhåll och akustik

    Författare :Albert Björnström; [2018]
    Nyckelord :Flow Calibration; Electromagnetic Flow Metering; Maintenance Processes; FMEA; Flödeskalibrering; Elektromagnetisk flödesmätning; Underhållsprocesser; FMEA;

    Sammanfattning : In December 2015 the Paris Agreement was signed in order to create a better global climate. According to the agreement, all countries 'emissions shall be reported to the UN. To be able to do this current emission levels must be known, which means measurement and calculation of emissions are necessary. LÄS MER

  7. 20. Electromagnetic analysis of AES-256 on Xilinx Artix-7

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

    Författare :Oskar Westman; [2018]
    Nyckelord :Electromagnetic side-channel attack; AES-256; Artix-7; FPGA; Differential analysis; Simple analysis.; Technology and Engineering;

    Sammanfattning : In this project, an electromagnetic side-channel attack has been made by exploiting the information leakage from a field programmable gate array (FPGA) and an implemented advanced encryption standard with a 256-bit key (AES-256). The FPGA-board was a Nexys-4 from Digilent with Artix-7 FPGA. The attack was partially successful. LÄS MER