TY - JOUR
T1 - Intrinsic eigenvibration frequency in the resonant ultrasound spectroscopy
T2 - Evidence for a coupling vibration between a sample and transducers
AU - Yoneda, Akira
N1 - Funding Information:
Acknowledgments. The author is indebted to Mr. Maeda for designing and assembling the electronic circuit for clamp-force controller. He also thanks Prof. I. Suzuki at Okayama Univ. and Prof. I. Ohno at Ehime Univ. for helpful comments to the present model. This work was partially supported by a Grant-in Aid for Scientific Research No. 12440121 from the Japan Society for the Promotion of Science.
PY - 2002
Y1 - 2002
N2 - The resonant ultrasound spectroscopy enables us to measure elastic constants of various materials with high accuracy. One of its curious features is resonance frequency shift caused by modulation of clamp force for a sample, although its mechanism has not been clarified yet. A coupling vibration model is newly proposed to interpret this phenomenon and predict its functional form. Further, it is confirmed that the resulted functional forms depend on characteristics of each eigenvibration mode. The extrapolation based on those functional forms enables us to correct measured frequency to the intrinsic one with improved accuracy at least by one order of magnitude. Thus the correction is essential in order to obtain accurate derivatives of frequency with respect to temperature, pressure, composition, and so forth.
AB - The resonant ultrasound spectroscopy enables us to measure elastic constants of various materials with high accuracy. One of its curious features is resonance frequency shift caused by modulation of clamp force for a sample, although its mechanism has not been clarified yet. A coupling vibration model is newly proposed to interpret this phenomenon and predict its functional form. Further, it is confirmed that the resulted functional forms depend on characteristics of each eigenvibration mode. The extrapolation based on those functional forms enables us to correct measured frequency to the intrinsic one with improved accuracy at least by one order of magnitude. Thus the correction is essential in order to obtain accurate derivatives of frequency with respect to temperature, pressure, composition, and so forth.
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U2 - 10.1186/BF03351729
DO - 10.1186/BF03351729
M3 - Article
AN - SCOPUS:2542430568
VL - 54
SP - 763
EP - 770
JO - Earth, Planets and Space
JF - Earth, Planets and Space
SN - 1880-5981
IS - 7
ER -