Phase normalisation for accurate pyroelectric technique

Azmi Zakaria, . and Liaw H. S., . Phase normalisation for accurate pyroelectric technique. pp. 34-37. ISSN 0128-6072

The theory of thermal wave interferometry in photoacoustic signal generation has been adopted to one-dimensional model of standard photopyroelectric configuration to measure thermal diffusivity of solid samples. Reflection of thermal wave in the pyroelectric coatings which was ignored in previous models was considered. Secondly a normalisation procedure has been used to eliminate the number of media parameters of photopyroelectric cell that otherwise need to be known before one can determine the thermal diffusivity of the sample. The method was experimentally tested for aluminium and copper and the values obtained were close to the literature values.

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Abstract

The theory of thermal wave interferometry in photoacoustic signal generation has been adopted to one-dimensional model of standard photopyroelectric configuration to measure thermal diffusivity of solid samples. Reflection of thermal wave in the pyroelectric coatings which was ignored in previous models was considered. Secondly a normalisation procedure has been used to eliminate the number of media parameters of photopyroelectric cell that otherwise need to be known before one can determine the thermal diffusivity of the sample. The method was experimentally tested for aluminium and copper and the values obtained were close to the literature values.

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Item Type:	Article
AGROVOC Term:	THERMAL ENERGY
AGROVOC Term:	THERMAL ANALYSIS
AGROVOC Term:	THERMAL PROPERTIES
AGROVOC Term:	ALUMINIUM
AGROVOC Term:	COPPER
AGROVOC Term:	SENSORS
AGROVOC Term:	CELLS
AGROVOC Term:	MALAYSIA ENERGIA TERMAL
AGROVOC Term:	ANALISIS TERMICO
AGROVOC Term:	PROPIEDADES TERMICAS
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:26
URI:	http://webagris.upm.edu.my/id/eprint/21166

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