Method for the measurement of the pyroelectric coefficient, dc dielectric constant, and volume resistivity of a polar material

Sidney B. Lang, F. Steckel

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Abstract

A method is described for measuring the pyroelectric coefficient, dc dielectric constant, and volume resistivity of a polar material over a broad temperature range. The technique is based on the observation of the capacitive charging of a pyroelectric sample by the pyroelectric current generated during a continuous temperature change. This method has the advantages of requiring neither a heat flux measurement nor the attaining of isothermal conditions and does not alter the domain structure of a ferroelectric material. Values of the above properties were measured for Clevite PZT-5 (lead-zirconate-titanate ceramic) over the temperature range from -200 to 200°C. The pyroelectric coefficient of Clevite PZT-4 (lead-zirconate-titanate ceramic) was measured by a simplified method over the temperature range of 25 to 75°C.

Original languageEnglish
Pages (from-to)929-932
Number of pages4
JournalReview of Scientific Instruments
Volume36
Issue number7
DOIs
StatePublished - 1 Dec 1965
Externally publishedYes

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