Concealable strain sensing method for art preservation

Autor: Sergio A. Bermudez Rodriguez, Levente Klein, Alejandro G. Schrott, Joseph Sloan, Hendrik F. Hamann
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