Essays about: "thesis ultrasonic study"

Showing result 1 - 5 of 17 essays containing the words thesis ultrasonic study.

1. 1. Development of a real-time navigation and collisionavoidance system for an autonomous naval rover : A Contribution to the Environmental Initiative for Flexible andReal-time Water Monitoring of the CatFish team

   University essay from Högskolan i Halmstad/Akademin för informationsteknologi

   Author : Esmee Tackx; [2023]
   Keywords : ;

   Abstract : This thesis explores the design and optimisation of a sensor system for real-time position determination of the Fish component in the CatFish naval drone and the development of a sonar sensor system for accurate object localisation and safe navigation in dynamic and uncertain underwater conditions. Through comprehensive experimentation and analysis, this thesis demonstrates the effectiveness of the proposed sensor system and sonar sensing system in enhancing underwater navigation and obstacle avoidance capabilities. READ MORE

3. 2. Characterization of surface defects caused by ultrasonic cleaning of aluminium

   University essay from Uppsala universitet/Tillämpad materialvetenskap

   Author : Emanuel Eriksson; [2022]
   Keywords : Ultrasonic cleaning; surface cleaning; metal; aluminium; 7050; 2050; defects; surface defects; Energy Dispersive Spectroscopy; Scanning Electron Microscopy; Vertical Scanning Interferometry;

   Abstract : This master thesis studies the behaviour of two aluminium alloys in ultrasonic cleaning at two different intensities, as well as the effect of a cleaning solution, Formula 815 GD-NF on the same surface have been studied with respect to surface roughness and material composition. Methods like Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and 3D topography using white light interferometry (VSI) was used to study the surface and material composition. READ MORE

4. 3. Investigation of Light and Ultrasound Injected Signals in Microphones

   University essay from Linköpings universitet/Elektroniska Kretsar och System

   Author : Robin Djerv; [2021]
   Keywords : LightCommands; DolphinAttack; MEMS Microphone; Signal Injection; Security;

   Abstract : Voice commanded systems (VCS) have been proved to be vulnerable to signal in- jections mimicking voice commands and explored security flaws in market avail- able products for the time of each respective study. Signal injection caused with the help of amplitude modulated ultrasonic waves (being known as DolphinAt- tacks - DA) were proved to work on several such devices in 2017. READ MORE

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

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

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

   Abstract : 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. READ MORE

6. 5. Non-Destructive Testing Of Concrete Bridges

   University essay from Luleå tekniska universitet/Byggkonstruktion och brand

   Author : Nadja Hedlund; [2020]
   Keywords : Non-Destructive testing; Concrete; Covermeter; Ultra-Sonic Pulse Velocity; Rebound hammer;

   Abstract : Non-destructive testing is of great value in cases where a structure's future is investigated to find out what the best measure is. It is not always the best solution to demolish and build new. Many structures can be repaired and function several more years. READ MORE