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  • This paper presents a method for measurement of resonant frequency of aluminum bar longitudinal vibration. This has been done using an electret microphone and computer with a soundcard. The oscillations have been induced by axial impact so the method is essentially impact-echo. The sound was analysed by a specific software written in Python which calculated frequency spectrum and found several dominant peaks. These peaks represent fundamental frequency as well as higher harmonics. Moreover, the aluminum bar was tube-shaped with a resistance hot wire drawn along the center through all the length of a bar. The temperature changes have been measured by contactless thermometer placed at the middle of the bar. Using this arrangement it has been measured how resonant frequency depends on temperature.
  • This paper presents a method for measurement of resonant frequency of aluminum bar longitudinal vibration. This has been done using an electret microphone and computer with a soundcard. The oscillations have been induced by axial impact so the method is essentially impact-echo. The sound was analysed by a specific software written in Python which calculated frequency spectrum and found several dominant peaks. These peaks represent fundamental frequency as well as higher harmonics. Moreover, the aluminum bar was tube-shaped with a resistance hot wire drawn along the center through all the length of a bar. The temperature changes have been measured by contactless thermometer placed at the middle of the bar. Using this arrangement it has been measured how resonant frequency depends on temperature. (en)
Title
  • Measurement of longitudinal vibration frequency temperature dependence in aluminum bar
  • Measurement of longitudinal vibration frequency temperature dependence in aluminum bar (en)
skos:prefLabel
  • Measurement of longitudinal vibration frequency temperature dependence in aluminum bar
  • Measurement of longitudinal vibration frequency temperature dependence in aluminum bar (en)
skos:notation
  • RIV/00216305:26110/08:PU80097!RIV10-GA0-26110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA103/06/1711)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 378128
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26110/08:PU80097
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • longitudinal vibration, aluminum, temperature dependence (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [CB6C63274DA5]
http://linked.open...v/mistoKonaniAkce
  • Brno
http://linked.open...i/riv/mistoVydani
  • Neuveden
http://linked.open...i/riv/nazevZdroje
  • Defektoskopie 2008
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Martinek, Jan
  • Čechová, Lydie
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • Neuveden
https://schema.org/isbn
  • 978-80-214-3759-3
http://localhost/t...ganizacniJednotka
  • 26110
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