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Proceedings Paper

Distribution-patterned radiometers: a new paradigm for irradiance measurement
Author(s): Etienne Gaviot; Pascale Godts; Frederic Polet; Katir Ziouche; Florian Raucoules; Didier Leclercq
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Paper Abstract

This paper introduces a new approach to measuring infrared radiant flux density. Thermal sensors featuring a significant metering area from 3 mm2 to 25 cm2 can be achieved by way of distributing the sensing surface upon an appropriate plated-planar thermopile. Despite a low figure of merit regarding bimetallic structures, low noise, rugged, thin and even flexible devices are made in the laboratory. Such sensors have neither to be covered with a protective widow nor to be placed in an insulating gas, thanks to their inherent immunity against convection afforded by the differential behavior of their structure. Hence wide spectrum infrared measurements, and experiments undergoing a wide range of pressure, are allowed with distribution-patterned radiometers. Current techniques of manufacture are reviewed together with the philosophical arguments concerning the distributed layout of monolithic thermopiles. Since such devices can be directly deposited upon various dielectric materials, many an application in military and space research can be expected. As regards industrialization, those multipurpose sensors meet the necessary requirements of self-calibrating ability, good reproducibility, fast response (#20 ms), ruggedness, and low cost. It is expected that the versatility of the device will result in a wide number of industrial applications.

Paper Details

Date Published: 13 August 1997
PDF: 11 pages
Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); doi: 10.1117/12.280400
Show Author Affiliations
Etienne Gaviot, Univ. de Lille I (France)
Pascale Godts, Institut d'Electronique et de Microelectronique du Nord (France)
Frederic Polet, Univ. de Lille I (France)
Katir Ziouche, Institut d'Electronique et de Microelectronique du Nord (France)
Florian Raucoules, SARL Captec (France)
Didier Leclercq, Univ. de Lille I (France)


Published in SPIE Proceedings Vol. 3061:
Infrared Technology and Applications XXIII
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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