Theoretical analysis of the pulse technique for measuring thermal diffusivity utilizing a pyroelectric detector

Sidney B. Lang

doi:10.1080/00150197608236571

Theoretical analysis of the pulse technique for measuring thermal diffusivity utilizing a pyroelectric detector

Sidney B. Lang

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

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.

Original language	English
Pages (from-to)	315-319
Number of pages	5
Journal	Ferroelectrics
Volume	11
Issue number	1
DOIs	https://doi.org/10.1080/00150197608236571
State	Published - 1 Jan 1976

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Theoretical analysis of the pulse technique for measuring thermal diffusivity utilizing a pyroelectric detector",

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.",

author = "Lang, {Sidney B.}",

note = "Funding Information: The author thanks the Jewish Agency and the Center of Absorption in Science, Prime Minister's Office, Government of Israel, for the financial support of this work.",

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PY - 1976/1/1

Y1 - 1976/1/1

N2 - 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.

AB - 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.

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ER -

Theoretical analysis of the pulse technique for measuring thermal diffusivity utilizing a pyroelectric detector

Abstract

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