Abstract
It has been established that the risk of damage to paintings on wood (“panel paintings”) increases with the presence of cracks, delaminations, and their associated stress concentrations. Such flaws can originate and increase in size as a result of fluctuations in temperature and relative humidity, as well as shock and vibration. Many internal flaws cannot be detected either visually or by traditional testing techniques, and it is difficult, therefore, to assess the risk transportation poses to panel paintings.
Air-coupled ultrasound has been used to assess the condition of two panel paintings (Parental Admonition [a copy of the original] and Women Gathering Yucca Plants), in a non-contact, non-intrusive manner; this method provides information complementary to that given by radiography. It has been demonstrated that the ultrasonic system is clearly more suitable for detecting specific types of flaw, such as in-plane cracks and delaminations. The system enables measurements to be easily made of highly anisotropic and inhomogeneous materials such as wood.
The ultrasonic system used in this study has a superior signal-to noise ratio because it uses efficient transducers, low noise pre-amplifiers, and a phase-sensitive superheterodyne ultrasonic system that has analog signal averaging and filtering components. The signal can be exploited to yield both amplitude and phase information. The ultrasonic system also incorporates a mechanical scanner to produce easily interpreted two-dimensional images of large areas of paintings to give a clear indication of their condition. The results can be further enhanced by using image processing techniques.
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References
Mecklenburg, M.F., and C.S. Tumosa, “Mechanical Behavior of Paintings Subjected to Changes in Temperature and Relative Humidity,” Art in Transit - Studies in the Transport of Paintings, (Washington, D.C.: National Gallery of Art, 1991) 173–216.
Mairinger, F., and M. Schreiner, “Analysis of supports, grounds and pigments,” Art History and Laboratory Scientific Examination of Easel Painting,in the Journal of the European Study Group on Physical, Chemical and Mathematical Techniques Applied to Archaeology, (Strasbourg, France: Council of Europe, Parliamentary Assembly, 1986) 13, 171–184.
Wainwright, Ian N.M., “Examination of Paintings by Physical and Chemical Methods,” Shared Responsibility Proceedings,National Gallery of Canada,26 to 28 October 1989 (Ottawa, Canada: National Gallery of Canada, 1990).
Murray, A., R.E. Green, M.F. Mecklenburg, and C.M. Fortunko, “NDE Applied to the Conservation of Wooden Panel Paintings,” edited by C.O. Ruud, J.F. Bussière, R.E. Green Jr., Nondestructive Characterization of Materials IV, (New York: Plenum Press, 1991).
Murray, Alison, “Air-Coupled Ultrasound Used to Detect Flaws in Paintings on Wooden Panels,” Ph.D. dissertation, The Johns Hopkins University, 1993.
Fortunko, C.M., M.C. Renken, and A. Murray, “Examination of Objects Made of Wood Using Air-Coupled Ultrasound,” IEEE Ultrasonics Symposium 1990 (IEEE, 1991), 1099–1103.
Fortunko, C.M., D.E. Chimenti, “Characterization of Pre-Impregnated Graphite Epoxy Lamina with Gas-Coupled Ultrasound,” IEEE Ultrasonics Symposium 1993 (IEEE, to be published).
Fortunko, C.M., D.P. Dubé, J.D. McColskey, “Gas-Coupled Acoustic Microscopy in Pulse-Echo Mode,” IEEE Ultrasonics Symposium 1993 (IEEE, to be published).
Birks, A.S., “Particleboard Blow Detector,” Forest Products Journal 22.6 (1972): 23–26.
Beall, F.C., “Acoustic Emission and Acousto-Ultrasonic Characteristics,” Wood Encyclopedia, 1–2.
Murray, A., C.M. Fortunko, M.F. Mecklenburg, and R.E. Green Jr., “Detection of Delaminations in Art Objects Using Air-Coupled Ultrasound,” Materials Issues in Art and Archaeology III, Materials Research Society Volume 267, (Materials Research Society, 1992), 371–377.
Murray, Ph.D. dissertation, 1993.
Murray, A., E.S. Boltz, C.M. Fortunko, M.F. Mecklenburg, R.E. Green, Jr., “Air-coupled Ultrasonic System for Nondestructive Evaluation of Wooden Panel Paintings,” 3rd International Conference on Non-Destructive Testing, Microanalytical Methods and Environmental Evaluation for Study and Conservation of Works of Art, Viterbo, Italy, 4–8 October 1992.
Murray, Ph.D. dissertation, 1993.
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Murray, A., Boltz, E.S., Renken, M.C., Fortunko, C.M., Mecklenburg, M.F., Green, R.E. (1994). Air-Coupled Ultrasonic System for Detecting Delaminations and Cracks in Paintings on Wooden Panels. In: Green, R.E., Kozaczek, K.J., Ruud, C.O. (eds) Nondestructive Characterization of Materials VI. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2574-5_14
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DOI: https://doi.org/10.1007/978-1-4615-2574-5_14
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