Sökning: "Microelectromechanical systems"

Visar resultat 11 - 15 av 26 avhandlingar innehållade orden Microelectromechanical systems.

  1. 11. Microsystem Interfaces for Space

    Författare :Hugo Nguyen; Greger Thornell; Johan Köhler; Staffan Greek; Uppsala universitet; []
    Nyckelord :Engineering physics; microelectromechanical system; interface; microfluidics; nanosatellite; space; microsystems; filter; valve; MST; MEMS; Teknisk fysik;

    Sammanfattning : Microsystem interfaces to the macroscopic surroundings and within the microsystems themselves are formidable challenges that this thesis makes an effort to overcome, specifically for enabling a spacecraft based entirely on microsystems. The NanoSpace-1 nanospacecraft is a full-fledged satellite design with mass below 10 kg. LÄS MER

  3. 12. Photonic MEMS for optical information technologies

    Författare :Carlos Errando-Herranz; Kristinn B. Gylfason; Wolfram Pernice; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Micro-electro-mechanical systems MEMS ; photonics; silicon photonics; photonic integrated circuits PIC ; lithium niobate photonics; ring resonator; polarization beam splitter PBS ; microfluidic integration; lab-on-chip LoC ; optical beam steering; nonlinear optics; Electrical Engineering; Elektro- och systemteknik; Fysik; Physics; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : Photonic integrated circuits (PICs) combine hundreds of optical components on a chip, and can enable fast communications, high-performance computing, and improved sensing. PICs, made by miniaturized optical waveguides, require many reconfigurable elements to enable programmable functionalities and to compensate for fabrication variations and environmental factors. LÄS MER

  4. 13. Miniaturized Multifunctional System Architecture for Satellites and Robotics

    Författare :Fredrik Bruhn; Jan-Åke Schweitz; Lars Stenmark; Johan Köhler; Thomas George; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Space technology; Multifunctional design; Spacecraft; Robotics; Microengineering; MEMS; Exploration; Distributed intelligence; Mission Design; Rymdteknik; Space engineering; Rymdteknik;

    Sammanfattning : This thesis describes and evaluates the design of nanospacecraft based on advanced multifunctional microsystems building blocks. These systems bring substantial improvements of the performance of nanosatellites and enable new space exploration, e.g. interplanetary science missions using minute space probes. LÄS MER

  5. 14. Reconfigurable MEMS Antennas and Coupling Matrix Estimation

    Författare :Marc Mowlér; Björn Ottersten; Jon Wallace; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Elektroteknik;

    Sammanfattning : One of the demands for future wireless communication systems is higher data rates. New applications demand higher data rates and higher data rates give the service providers the possibility to offer new services. To achieve higher data rates the concept of MIMO (Multiple-Input Multiple-Output) systems has emerged. LÄS MER

  7. 15. Low temperature transfer bonding for MEMS. Utilizing and characterizing oxygen plasma assisted direct wafer bonding

    Författare :Martin Bring; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transfer bonding; chevron notch; oxygen plasma assisted bonding; Low temperature bonding; fracture toughness;

    Sammanfattning : Transfer bonding enables the integration of devices, e.g. integrated circuits (ICs) and transducers, fabricated using processes and/or designs that are not compatible with each other as well as double sided micromachining of thin films. LÄS MER