Theoretical analysis of the pulse technique for measuring thermal diffusivity utilizing a pyroelectric detector
- 1 January 1976
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 11 (1) , 315-319
- https://doi.org/10.1080/00150197608236571
Abstract
A modification of the pulse method for measurement of thermal diffusivity is analyzed theoretically. The new method utilizes a pyroelectric detector instead of a thermocouple. The pyroelectric detector has the unique features of extremely high temperature sensitivity and a current response proportional to the time derivative of the temperature. The new technique requires only the experimental measurement of the time between the laser pulse and the peak in the pyroelectric voltage. Advantages include the possibility of automated operation of the experimental apparatus, no risk of thermal damage to samples which are poor heat conductors and freedom from errors due to heat losses.Keywords
This publication has 3 references indexed in Scilit:
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- Thermal Conductivity and Heat Capacity of the Monocarbide, Monophosphide, and Monosulfide of UraniumJournal of Applied Physics, 1967
- Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal ConductivityJournal of Applied Physics, 1961