Essays about: "transducer"

Showing result 1 - 5 of 61 essays containing the word transducer.

  1. 1. Towards a tunable, wide-band acoustic transducer operating in the quantum regime.

    University essay from KTH/Tillämpad fysik

    Author : Abel Hugot; [2022]
    Keywords : Hybrid quantum systems; Acoustics; Impedance matching; SQUIDs; Hybrida kvantsystem; Akustik; Impedansanpassning; SQUIDs.;

    Abstract : In the past decade we have seen fast development of new quantum technologies that promise to revolutionise communications and computing. Many different routes are explored to physically implement such quantum technologies. Among others, we can mention superconducting circuits, spin-based devices and photonic devices. READ MORE

  3. 2. Capacitive Micromachined Ultrasonic Transducers for Underwater Applications

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Patrick Johansson; [2021]
    Keywords : CMUT; capacitive; micromachined; ultrasonic; transducer; model;

    Abstract : Capacitive micromachined ultrasonic transducers (CMUT:s) are often used in medical imaging and they show some promise as underwater transducers. This thesis collates the available information about how CMUT:s operate, their strengths and weaknesses and investigates their efficiency as an underwater transducer. READ MORE

  4. 3. Compensating for ultrasound frequency attenuation in tissue when determining tissue effective particle size

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Karolina Sandell; [2021]
    Keywords : Technology and Engineering;

    Abstract : Giant cell arteritis is a disease the affects the arteries, for example the temporal artery. When affecting the temporal artery, it can cause serious consequences such as blindness and stroke. The existing methods for diagnosing the disease are invasive, time consuming and costly. READ MORE

  5. 4. Ultraljudsmätning av benens muskulatur : reliabilitet av tvärsnittsmätning hos häst

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Tina Hansen; [2021]
    Keywords : muskulatur; häst; ultraljud; tvärsnitt; repeterbarhet; reproducerbarhet; intrareliabilitet; interreliabilitet; ICC; rehabilitering;

    Abstract : Att mäta muskelutveckling kan vara användbart exempelvis för att monitorera hypertrofi i samband med prestationshöjande träning eller utvärdera muskelutveckling i samband med rehabilitering efter skada. Ultraljudsmätning har visats vara en snabb, enkel, repeterbar och tillförlitlig metod för att mäta muskulatur på människa och hund. READ MORE

  6. 5. Simulation of ultrasonic time of flight in bolted joints

    University essay from KTH/Hållfasthetslära

    Author : David Chlebek; [2021]
    Keywords : Acoustoelastic effect; User material subroutine; Murnaghan hyperelastic material model; Explicit FEM; Ultrasonic preload; Fortran; Akustoelastiska effekten; Användar material; Murnaghan hyperelastisk materialmodell; Explicit FEM; Ultraljudsmätning av klämkraft; Fortran;

    Abstract : Ultrasonic measurements of the preload in bolted joints is a very accurate method since it does not depend on the friction and other factors which cause difficulties for common methods. The ultrasonic method works by emitting an ultrasonic pulse into the bolt which is reflected at the end and returned to the transducer, the change in the time of flight (TOF) can be related to the elongation of the bolt and therefore the preload. READ MORE