Sökning: "Pressure sensor"

Visar resultat 1 - 5 av 115 avhandlingar innehållade orden Pressure sensor.

  1. 1. Resonator sensor technique for medical use : an intraocular pressure measurement system

    Författare :Anders Eklund; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensor; Vibration; Hardness; Prostate; intraocular pressure; resonator; eye; applanation; glaucoma;

    Sammanfattning : In the work of this doctoral dissertation a new resonator sensor technique, first presented in 1989, has been further developed and evaluated with focus on technical characteristics and applications within the medical field. In a first part a catheter-type tactile sensor using the resonator sensor technique was evaluated in a silicone model and applied to human prostate in vitro. LÄS MER

  3. 2. Ultraminiaturized Pressure Sensor for Catheter Based Applications

    Författare :Patrik Melvås; KTH; []
    Nyckelord :Pressure sensor; miniaturized; surface micromachined; leverage beam; resonant; catheter; guide–wire;

    Sammanfattning : .... LÄS MER

  4. 3. Advanced MEMS Pressure Sensors Operating in Fluids

    Författare :Emil Anderås; Ventsislav Yantchev; Ilia Katardjiev; Jörgen Olsson; Enrico Verona; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pressure sensor; piezoresistance; nanofilms; AlN; microacoustic; Lamb wave; thin film; resonator; sensitivity; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Sammanfattning : Today’s MEMS technology allows manufacturing of miniaturized, low power sensors that sometimes exceeds the performance of conventional sensors. The pressure sensor market today is dominated by MEMS pressure sensors.In this thesis two different pressure sensor techniques are studied. LÄS MER

  5. 4. Characterization of an Electrical Sensor for Combustion Diagnostics

    Författare :Axel Franke; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ion sensor; combustion; nitric oxide; chemi-ionization; equilibrium; Physics; ionized gases; Fysicumarkivet A:2002:Franke; ionization sensor; Fysik;

    Sammanfattning : The ionization sensor is an electrical probe for diagnostics in internal combustion engines. The combustion process affects the electrical properties of the gas in the cylinder. Thus the sensor signal contains copious information about the conditions in the combustion chamber. LÄS MER

  7. 5. Graphene-based Devices for More than Moore Applications

    Författare :Anderson Smith; Mikael Östling; Mihai Adrian Ionescu; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphene; Humidity Sensor; Pressure Sensor; GFET; CMOS; BEOL; More than Moore; Integration; Statistics;

    Sammanfattning : Moore's law has defined the semiconductor industry for the past 50 years. Devices continue to become smaller and increasingly integrated into the world around us. Beginning with personal computers, devices have become integrated into watches, phones, cars, clothing and tablets among other things. LÄS MER