Essays about: "nonlinear acoustics"
Found 5 essays containing the words nonlinear acoustics.
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1. Quality Assessment of Thin Polymer Components using NonDestructive Testing : Degree Project for Master of Science in Mechanical Engineering with emphasis on Applied Mechanics
University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknikAbstract : Polymer components are used in many different applications, including in industries where critical applications put high requirements regarding quality assessment. Such applications might include medical or food where the presence of discontinuities might induce bacterial growth or other unpleasantries, thus certain manufacturers must be able to maintain a zero-tolerance towards damaged components. READ MORE
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2. Examining the quality of extruded plastic with the nondestructive testing method NAW
University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknikAbstract : Defects in a plastic floor material produced in Tarketts factory in Ronneby are causing waste of time and material since it is noticed too late in the production line. The objective of this thesis is to investigate if the nondestructive test method NAW®, which is developed by Acoustic Agree in Ronneby, can be a solution to find the defects at an earlier stage. READ MORE
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3. Quality assurance of PVC by using Non-linear Acoustic Techniques
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : In this thesis, a Nonlinear Acoustic Technique (NAT) has been used to do a non-destructive quality assurance of plasticized polyvinyl chloride (PVC) specimens. The response of the specimen to an ultrasonic wave is analyzed in order to characterize its material properties. READ MORE
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4. Analysis of the Behaviour of Standing Acoustic Waves in a Cubically Nonlinear Medium.
University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknikAbstract : The basic distinction between linear and nonlinear acoustics is given in the introductory part. The differences between nonlinear acoustic waves in quadratic and cubic media are briefly explained. The behavior of standing waves, including the wave profile evolution, is described. READ MORE
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5. Speaker that uses the non-linearity in air to create sound
University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknikAbstract : The aim of this work was to investigate theoretically and experimentally the fact that it is possible to create sound by using the nonlinearity in air. A speaker was built verifying the theory that if at least two high frequencies at high amplitude is propagating through a nonlinear medium, for example air, the difference frequency of these two is created in mid air. READ MORE