Laboratory measurement system for pre-corroded sensors devoted to metallic artwork monitoring

Authors

  • Marco Faifer Politecnico di Milano
  • Sara Goidanich Politecnico di Milano
  • Christian Laurano Politecnico di Milano
  • Chiara Petiti Politecnico di Milano
  • Sergio Toscani Politecnico di Milano
  • Michele Zanoni Politecnico di Milano

DOI:

https://doi.org/10.21014/acta_imeko.v10i1.855

Abstract

The monitoring of environmental corrosivity around works of cultural heritage is a key task in the field of both active and preventive conservation. In the case of metallic artworks, this task can be performed by means of coupons or sensors realised with the same materials as the artworks to be conserved. In this work, a measurement system for the development and testing of sensors for atmospheric corrosivity monitoring is presented. The metrological features of the measurement system operated in conjunction with a developed sensor are analysed. The sensor allows for considering the different corrosion behaviours due to the presence of corrosion layers on the object to be preserved. The first developed sensors are made of pre-corroded copper and their resistance is measured. The developed system allows for monitoring thickness loss of over 3 nm in the temperature range of 23 °C – 39 °C. The performed analysis demonstrated that the system presents an efficient laboratory setup for the development and characterisation of sensors for atmospheric corrosivity monitoring.

 

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Published

2021-03-31

Issue

Vol. 10 No. 1 (2021)

Section

Research Papers

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