Essays about: "pulse-echo"

Found 5 essays containing the word pulse-echo.

  1. 1. Evaluation of OSTE-hybrid materials for acoustophoresis applications

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Elin Forss; [2020]
    Keywords : Acoustophoresis; off-stoichiometry-thiol-enes; OSTE; microfluidics;

    Abstract : This project aimed at exploring new hybrid materials to be used for acoustophoresis applications. Acoustophoresis can be used to manipulate particles inside a microfluidic channel by creating ultrasound standing waves within the channel [1]. This can be used for cell separation [2] or trapping of particles [3]. READ MORE

  3. 2. Acoustic Characterization of the Cellulose-coated Perfluorocarbon Droplets based on Phase Velocity Measurements

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Emma Lindroth; [2020]
    Keywords : Ultrasound; Droplets; Contrast agent; Cellulose; Perfluorocarbon; Acoustic characterization; Non-destructive evaluation; Phase velocity; Bulk modulus; Compressibility;

    Abstract : Today, microbubbles are one of the most commonly used ultrasound contrast agents, since their high compressibility results in a strongly scattered signal. Despite this advantage, microbubbles experience limitations by the decreased stability and large diameter. READ MORE

  4. 3. Quality assessment of mineral wool insulation plates : Using ultrasonic non-destructive testing

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Linus Ikonen; Daniel Nilsson; [2019]
    Keywords : Non-destructive testing; linear ultrasound; mineral wool; fibrous materials; acoustics; frequency response; signal attenuation; Oförstörande provning; linjärt ultraljud; stenull; fibrösa material; akustik; frekvenssvar; signalförsvagning;

    Abstract : In the manufacturing process of mineral wool insulation plates, defects arise, such as unmelted base minerals and uncured binder which gets embedded within the plates. To be able to sort out these defective plates from a manufacturing line, a reliable quality assessment is needed. READ MORE

  5. 4. A System Study Of Ultrasonic Transceivers For Haptic Applications

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Ishan Arya; Viswanaath Sundaram; [2018]
    Keywords : Haptics; Ultrasonic; Transceivers; Beamformation;

    Abstract : We are investigating the use of ultrasound in Haptic applications. Initially abrief background of ultrasonic transducers and its characteristics were presented.Then a theoretical research was documented to understand the concepts that govern haptics. READ MORE

  6. 5. Control strategies and inspection methods for welded part

    University essay from Avdelningen för maskin- och materialteknik

    Author : Divyank Baradi; [2013]
    Keywords : Visual inspection; WPS; impressions; throat size gauge; radius gauge; liquid penetrant test; magnetic particle testing; eddy current; radiography; ultrasonic PAUT TOFD ; thermography; control plan; cost per hour.;

    Abstract : Present and future demonstrator designs were used to demonstrate the quality assurance of welds. The NDT methods tested on prototype demonstrator parts are: visual inspection, radius gauges, throat size gauge, liquid-penetrant testing, magnetic particle testing and ultrasonics with pulse echo and phased array. READ MORE