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2015•Journal of the Korean Institute of Illuminating and Electrical Installation EngineersRequires access

Improving Sensitivity of the Pyroelectric Infrared Flame Detector

Hyun Seon Song, Yeu Yong Lee

Open publisher page 3 citations

Abstract

PZT ceramics, usually used pyroelectric materials exhibited a relatively highly Curie temperture(Tc) of 250-450℃ and permittivity constant of 500-1600.BR In this paper, the pyroelectric infrared detectors are applied two different types of pyroelectric materials, that is tetragonal crystal of ferroelectric PbTiOSUB3/SUB and rhombohedral crystal of Pb(Zr,Ti)OSUB3/SUB. PZT ceramics shows not only highly Curie temperture but also excellent pyro and piezoelectric properties at the Zr/Ti(=52/48) ratio. Therefor in this paper, the pyroelectric infrared detectors are applied PZT ceramics, and obtained sensitive sensing characteristics by expriment case studies.

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What this paper is about

PZT ceramics, usually used pyroelectric materials exhibited a relatively highly Curie temperture(Tc) of 250-450℃ and permittivity constant of 500-1600.BR In this paper, the pyroelectric infrared detectors are applied two different types of pyroelectric materials, that is tetragonal crystal of ferroelectric PbTiOSUB3/SUB and rhombohedral crystal of Pb(Zr,Ti)OSUB3/SUB. PZT ceramics shows not only highly Curie temperture but also excellent pyro and piezoelectric properties at the Zr/Ti(=52/48) ratio. Therefor in this paper, the pyroelectric infrared detectors are applied PZT ceramics, and obtained sensitive sensing characteristics by expriment case studies.

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Available abstract

PZT ceramics, usually used pyroelectric materials exhibited a relatively highly Curie temperture(Tc) of 250-450℃ and permittivity constant of 500-1600.BR In this paper, the pyroelectric infrared detectors are applied two different types of pyroelectric materials, that is tetragonal crystal of ferroelectric PbTiOSUB3/SUB and rhombohedral crystal of Pb(Zr,Ti)OSUB3/SUB. PZT ceramics shows not only highly Curie temperture but also excellent pyro and piezoelectric properties at the Zr/Ti(=52/48) ratio. Therefor in this paper, the pyroelectric infrared detectors are applied PZT ceramics, and obtained sensitive sensing characteristics by expriment case studies.

Key concepts: Pyroelectricity, Pyroelectric crystal, Tetragonal crystal system, Materials science, Ceramic, Infrared, Piezoelectricity, Dielectric

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