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LI WENDAN;CUI GUANGYU China Institute of Atomic Energy, P. O. Box--275, Beijing. NON-INSTANTANEOUS PULSE EFFECT IN PULSE THERMAL DIFFUSIVITY MEASUREMENT[J]. Atomic Energy Science and Technology, 1990, 24(5): 65-65. DOI: 10.7538/yzk.1990.24.05.0065
Citation: LI WENDAN;CUI GUANGYU China Institute of Atomic Energy, P. O. Box--275, Beijing. NON-INSTANTANEOUS PULSE EFFECT IN PULSE THERMAL DIFFUSIVITY MEASUREMENT[J]. Atomic Energy Science and Technology, 1990, 24(5): 65-65. DOI: 10.7538/yzk.1990.24.05.0065
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NON-INSTANTANEOUS PULSE EFFECT IN PULSE THERMAL DIFFUSIVITY MEASUREMENT

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    • Abstract
  • The analytical function of temperature response on rear face is derived forpulse thermal diffusivity measurement using a trapezoidal energetic pulse. In ac-cordance with this, the expression for characteristic time of thermal diffusion isfound. It is concluded that Non-instantaneous Pulse effect originates from theduration of energetic pulse and the geometry factor related to its shape. Throughthe measuring and correcting of thermal diffusivity for thinner specimens, the cor-rection procedure is demonstrated.
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