Thermo-electric Model Of A
Pyroelectric Detector
Author(s)
K. Domke & A. Odon
Abstract
This paper discusses the construction and operating rules of a pyroelectric
detector. An analysis of heat phenomena occurring in the detector and the
influence on the signals generated by the detector was carried out. A strict
dependence of the electric characteristics of the detector upon its heat properties
determined by the geometrical structure and heat properties of the materials that
make up the detector was emphasised, while considering the detectors used for
the conversion of impulse signals. Also emphasised was the necessity to take
into account the differences occurring in the process of heating up and cooling
down of the pyroelectric film of the detector.
Keywords: pyroelectric detector, thermal model, heat exchange in detector.
1 Introduction
Pyroelectric detectors play an important role in such applications as infrared
radiation detection, measurements of emission parameters of radiation sources,
remote measurements of temperature as well as heat and visual measurements.
Information concerning the measurable radiation values is included in the
parameters of the pyroelectric detector current or voltage response to heat
agitation by the energy provided by the radiation absorbed by the detector.
Multiple applications of this detector stimulate interest of a number of research
teams in both new pyroelectric detectors manufacturing and improved analytic
description, especially the one related to the pyroelectric detector modelling.
A pyroelectric detector is a heat converter that enables transformation of the
absorbed radiation into an increase of temperature of the pyroelectric material
and subsequently into a measurable electric signal. During the process of
Keywords
pyroelectric detector, thermal model, heat exchange in detector.
Related Book
Other papers in this volume
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