Sökning: "anechoic chamber"

Visar resultat 16 - 20 av 27 uppsatser innehållade orden anechoic chamber.

  1. 16. Feasibility of an Electrically Tuneable EMC Susceptibility Antenna for 26-150 MHz

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Lucas Svensson; Gustaf Ljungné; [2019]
    Nyckelord :EMC; tuneable; antenna; low frequency; susceptibility; electromagnetic compatibility; immunity; testing; 26-150 MHz; changing size; EZNEC; SAAB; tuned antenna; anechoic chamber;

    Sammanfattning : Electromagnetic compatibility (EMC) is an essential part in today’s society and there are more products around us that emit electromagnetic waves than ever before. To make sure that all these products function properly under all circumstances EMC testing is needed. One test that is conducted is radiated immunity testing. LÄS MER

  3. 17. Utvärdering av dämpningsmaterial : Förbättringspotential av ljudtryck vid luft- och strukturburen excitering

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Emil Collén; [2018]
    Nyckelord :;

    Sammanfattning : This project has been completed in co-operation with Trelleborg Sealing Solutions Kalmar AB. They specialize in developing laminated damping- and isolation products for breake systems. LÄS MER

  4. 18. Development of a general acoustic model for an arbitrary surveillance camera design

    Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Shenyang Fei; [2018]
    Nyckelord :MEMS microphone; Frequency Response; Thermoviscous Losses;

    Sammanfattning : This thesis studies how the mechanical design of a surveillance camera affects the acoustic performance, mainly in terms of the frequency response within the human hearing range. During the project, the mechanical characteristics that affect frequency response were investigated by measuring the camera’s audio behavior in an anechoic chamber. LÄS MER

  5. 19. A systematic approach to quantitatively compare antenna measurements with simulations.

    M1-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :George Kiarie; Elin Andersson; [2018]
    Nyckelord :simulation; antennas;

    Sammanfattning : The objective of this paper is to compare antenna simulations to actual measurements using a simulation software tool. This comparison is done using statistical methods in the far field region where the radiation patterns of antennas are plotted on a polar diagram. Actual antenna measurements are carried out in an anechoic chamber. LÄS MER

  7. 20. Design of a Fully Anechoic Chamber

    Master-uppsats, KTH/MWL Marcus Wallenberg Laboratoriet

    Författare :Roman Rusz; [2015]
    Nyckelord :Sound; Vibration; Design; Anechoic chamber; Acoustics;

    Sammanfattning : This thesis deals with fully anechoic chamber design. The main aim of this thesis is to design fully anechoic chamber according to acoustics laws and customers (Honeywell’s) requirements. The fully anechoic chamber will be used for measuring sound and vibration quantities. This work is divided into two main parts. LÄS MER