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Environmental monitoring using glass sensors - relevant features for small-scale mapping at monuments

 
: Fuchs, D.R.; Leissner, J.

Instituto Centrale per il Restauro, Roma:
3rd International Conference on Nondestructive Testing, Microanalytical Methods and Environment Evaluation for Study and Conservation of Works of Art 1992
Viterbo: BetaGamma, 1992
pp.977-988
International Conference on Nondestructive Testing, Microanalytical Methods and Environment Evaluation for Study and Conservation of Works of Art <3, 1992, Viterbo>
English
Conference Paper
Fraunhofer ISC ()
environmental stress level; glass-Sensor; pollution effects; pollution monitoring

Abstract
Glass sensor assesments of environmental stress distributions were performed indoor as well as outdoor at historic monuments in seven European countries. Comparison of the indoor results proves general pollution effects by intrusion, but also the influence of indoor emission sources. Increased stress levels were found in higher positions at the external facades. Edge-lancets at the borders of the windows showed environmental impact risks larger than more centered panels. The chimney effect at large-sized lancets yields reduced stress potentials in the interspace between historic and protective glazings at rural locations. Systematic differences due to different orientation of the investigated surfaces were obtained. Besides these findings the study in general confirmed a high discrimation potential and suitability of the glass sensor method for small-scale mapping of stress distributions at monuments.

: http://publica.fraunhofer.de/documents/PX-12657.html