Abstract
A resonant-rod technique to determine the extensional velocity of sound, using the transient capture mode of a real time spectrum analyzer, is presented. The rod is excited by striking one end, and the resulting ringing is picked up by a microphone and fed to the analyzer to determine the fundamental longitudinal resonant frequency. Results of this method on aluminum bar samples are compared to results obtained on the same bars using a ceramic driven half-wave resonator and an ultrasonic pulse-echo overlap technique. This comparison reveals the technique to be a fast and accurate one.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have