Development of equipment for direct measurement of viscoelastic characteristics in high-frequency range

Abstract

We developed equipment for direct measurement of viscoelastic characteristics in high-frequency range without applying the time temperature superposition principle. So we proposed the first resonance compensation method to know viscoelastic characteristics in the high-frequency range. Then we can know accurate viscoelastic characteristic in the natural frequency (about 7.5kHz). Consequently, the result confirmed that the directly measurement obtained using the proposed equipment and compensation method reflect accurate viscoelastic characteristics up to 7.5kHz with less than 10% error.