Concealable strain sensing method for art preservation
Autor: | Sergio A. Bermudez Rodriguez, Levente Klein, Alejandro G. Schrott, Joseph Sloan, Hendrik F. Hamann |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Applied Physics A. 115:829-836 |
ISSN: | 1432-0630 0947-8396 |
DOI: | 10.1007/s00339-013-7871-4 |
Popis: | A novel method to measure strain without mediation of stress has been developed to assess relative displacements in art objects responding to environmental fluctuations. The method uses a chip with a variable resistor composed of a Giant Magnetic Resistance (GMR) material. In a case study, the dimensional changes of wooden test vehicles subjected to sudden humidity changes at constant temperature inside a controlled environmental chamber were measured. Furthermore, an optimized sensor deployment and converging algorithm to increase the accuracy of the measurements was developed and applied. |
Databáze: | OpenAIRE |
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