Sökning: "Ultrasonic Transducer"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Ultrasonic Transducer.

1. 1. UsoniClean : Innovativt koncept för rengöring av LiDAR sensorer på personbilar

   Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

   Författare :Jesper Carlström; Christos Vatsos; [2023]
   Nyckelord :LiDAR; Ultraljud; självkörning;

   Sammanfattning : Vision zero in traffic is something that car manufacturers and countries around the world strive for. To achieve this, safer and smarter cars are needed. Car manufacturers are introducing safety systems after safety systems to make it safer for the driver and other road users. One of these safety systems is LiDAR sensors. LÄS MER

3. 2. Fast Clock Synchronization for Large-Scale MEMS Ultrasonic Transducer Arrays

   Master-uppsats, Linköpings universitet/Institutionen för systemteknik

   Författare :Karl-Johan Karlsson; [2022]
   Nyckelord :clock synchronization; clock deskew; MEMS transducer; Delay line; Time-to-Digital conveter;

   Sammanfattning : In many systems today sensors or transmitters need to be read or controlled simultaneously. This thesis investigates a new architecture used for deskewing clock signals between multiple separated parts of a signal transmission system. LÄS MER

4. 3. Capacitive Micromachined Ultrasonic Transducers for Underwater Applications

   Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Patrick Johansson; [2021]
   Nyckelord :CMUT; capacitive; micromachined; ultrasonic; transducer; model;

   Sammanfattning : 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. LÄS MER

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

   Master-uppsats, KTH/Hållfasthetslära

   Författare :David Chlebek; [2021]
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

7. 5. Ultrasonic Assisted Drying and its Effect on 3D Printability of Minced Beef and Other Foods

   Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

   Författare :Viktor Lindström; [2020]
   Nyckelord :Drying; Convection drying; Ultrasound; Ultrasonic drying; 3D-Printing; 3D-Printability; Food; Meat; Beef; Food technology; Livsmedelsteknologi; Technology and Engineering;

   Sammanfattning : The aim of this master thesis project was to investigate the impact on drying kinetics of ultrasound during air drying by a new ultrasonic transducer, on which a patent application has been filed by CSIRO. Convection drying using hot air is currently the conventional method of drying in the industry due to its simplicity and low cost. LÄS MER