Essays about: "Non-linear Wave Modulation Spectroscopy"

Found 3 essays containing the words Non-linear Wave Modulation Spectroscopy.

1. 1. Quality Control in Aluminium Profiles : Non-destructive Methods using Non-linear Ultrasonic

   University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Author : Viktor Svensson; Robin Raymundsson; [2023]
   Keywords : Acoustic; defect; detection; harmonic; Akustisk; defekt; detektion; överton;

   Abstract : When aluminium profiles are manufactured, defects may arise, especially when theprofiles are manufactured through extrusion. During the extrusion process, thesedefects occur on parts of the extruded material because of contaminates that needto be found. READ MORE

3. 2. Non-linear ultrasound investigation of extended plates

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Rikard Gunnarsson; [2003]
   Keywords : Ultrasonic NDT; Non-linear acoustic testing; Non-linear non-destructive testing; Non-linear Wave Modulation Spectroscopy; Non-linear Elastic Wave Spectroscopy; Micro crack detection;

   Abstract : A non-linear ultrasound non-destructive testing method called Non-linear Wave Modulation Spectroscopy is studied. The method shows the non-linearity of the test specimen and can in that way detect cracks. It is at present non-localizing. READ MORE

4. 3. Crack detection using Non- Linear Wave Modulation Spectroscopy

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Kristofer Larsson; Andreas Silverbris; [2003]
   Keywords : NWMS; Rotor blade; Micro crack; Excel; Theoretical derivation; Experimental implification;

   Abstract : This report comprises an investigation of the non-linear ultrasonic crack detection method; Non-Linear Wave Modulation Spectroscopy, NWMS. Cracks in test objects were according to the NWMS method detected through their non-linearity. READ MORE