HIGH-RESOLUTION SIMULTANEOUS PHOTOTHERMAL MEASUREMENTS OF THERMAL PARAMETERS AT A PHASE-TRANSITION WITH THE PHOTOPYROELECTRIC TECHNIQUE

被引：114

作者：

MARINELLI, M

ZAMMIT, U

MERCURI, F

PIZZOFERRATO, R

机构：

[1] Dipartimento Ingegneria Meccanica, 2o Università di Roma Tor Vergata, 00173 Roma, via E. Carnevale

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 72卷 / 03期

关键词：

D O I：

10.1063/1.351785

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photothermal techniques allow, under particular experimental conditions, the simultaneous determination of specific heat, thermal conductivity, and thermal diffusivity. A comparison has been made between measurements performed with the gas-microphone (P) configuration and the photopyroelectric (PPE) one at a liquid-crystal second-order phase transition. An increase in the sensitivity with respect to thermal parameter variation has been observed in the case of PPE.

引用

收藏

页码：1096 / 1100

页数：5

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