{"id":10264,"date":"2014-06-04T14:15:35","date_gmt":"2014-06-04T19:15:35","guid":{"rendered":"http:\/\/www.conservators-converse.org\/?p=10264"},"modified":"2014-06-04T14:15:35","modified_gmt":"2014-06-04T19:15:35","slug":"42nd-annual-meeting-paintings-wooden-artifacts-joint-session-may-31-long-term-hygromechanical-monitoring-of-panel-paintings-by-paolo-dionisi-vici","status":"publish","type":"post","link":"https:\/\/resources.culturalheritage.org\/conservators-converse\/2014\/06\/04\/42nd-annual-meeting-paintings-wooden-artifacts-joint-session-may-31-long-term-hygromechanical-monitoring-of-panel-paintings-by-paolo-dionisi-vici\/","title":{"rendered":"42nd Annual Meeting, Paintings & Wooden Artifacts Joint Session, May 31, "Long Term Hygromechanical Monitoring of Panel Paintings," by Paolo Dionisi Vici"},"content":{"rendered":"

As a conservation student entering my first year of graduate study this fall, I was at first intimidated by the topic at hand and the thought of relaying this information to the conservation community, potentially\u00a0including research scientists, techs, and seasoned conservators who may have a jump-start on understanding these concepts, their implementation, and design execution. However, Paolo Dionisi Vici’s presentation not only made the material pertinent and compelling, but also accessible to a layman like myself. I only hope I can do justice to the complexities of the issue.
\nThe talk abstract provides\u00a0a great summary as to the ‘why’ of hygromechanical monitoring of panel paintings. Mathematical models and theoretical systems regarding the short and long term effects of environmental conditions on objects need to be substantiated by real life data sets in order to move forward with our understanding of the impact of\u00a0microclimates (and their fluctuations) on objects.\u00a0This topic is in direct diologue with the conference theme, Conscientious Conservation: Sustainable Choices in Collection Care,<\/strong> and harkens back to the opening session talks\u00a0broadly titled Exploring Sustainable Preservation Environments, <\/strong>in which the generally accepted environmental paramaters of the museum were discussed, questioned, and even at times directly challenged. Data-logging by experimental measures, as exemplified by Vici’s talk,\u00a0is paramount to the future of this conversation.
\nVici posed an excellent question at the beginning of his talk by asking “What does stability really mean?” As an example of the potential complexity of this issue, he refered to the localized monitoring of one of the viking ships in Oslo, in which different data responses were logged based on the instrumentations’ location on the ship.\u00a0The abstract aptly states, “Due to the specificity of each artwork… the analysis of an artifact’s response… can supply useful information about its “individual” sensitivity to the exhibition microclimate….” As the viking ship demonstrates, the\u00a0complexity of\u00a0individual responses can even vary within a single (albeit enormous in this case) object.
\nNow to get to the nitty gritty of the talk, and the part where I formally apologize for my unavoidable oversimplication (of what I suspect Vici already drastically simplified) of the sophisticated\u00a0instrumentation used to monitor panel paintings. I should mention that while this instrumentation can be used to monitor a variety\u00a0of wooden objects (such as the viking ship), the abstract notes\u00a0that\u00a0“panel paintings are useful in representing the complexity of\u00a0possible reactions.”
\nThe system of monitoring, the Deformometric Kit (DK), employs two displacement\u00a0transducers, attached perpendicularly to the grain of the wooden panel.\u00a0Linear deformations in the panel can be measured based on the proportional change of length of the transducers and subsequent trigonometric calculations. The transducers can be mounted on the back of a panel in different configurations and are not visible while the object is on exhibition.
\nThe DK has undergone several design modifications to improve the specificity of the data being collected and its practicality in a museum context. In earlier models, the transducers were screwed directly into the panels. This complicated the data, because\u00a0the specifics of what was being\u00a0measured (surface vs. interior deformations and fluctations) could not be determined. Improvements at the Metroplitan Museum of Art were tested, and the transducers were eventually glued to the surface of the panel. According to Vici, minor shifts in the mounting glue would not negatively reflect the recorded data, because the information being gathered between the two vertical elements reflects general, averaged fluctuations. \u00a0A further improvement was made when the base of the system was split, with ‘clips’ being glued to the surface of the panel and the transducers then being attached to these clips, making the transducers removable for transportation of the panel.
\nVici provided several examples of the DK in action. Simulations of the potential asymmetry of a panel’s surfaces were conducted by connecting transducers to both sides of test panels. The effects of the movement of moisture as it reached equilibrium within the panel could then be monitored. The data Vici shared with us from these trials spanned hundreds of days, and the applicability of this system’s monitoring\u00a0to both short and long term condition fluctuations should not go unmentioned. The DK also assisted in\u00a0inform conservators regarding\u00a0the appropriate crosspieces needed to provide auxiliary support for a long crack running through The Annunciation, <\/em>oil on wood, Peter Candid, 1585. The DK was able to assist in determining how rigid the cross pieces needed to be and what kind of connection to the panel would be most appropriate.
\nI would like to reiterate that Vici\u00a0did an\u00a0incredible job engaging the audience with what\u00a0could have been a very esoteric topic. And, yes, while it could be said that this is AIC, and perhaps only we could be ‘enthusiastic about dust’ (a group of people of which I am proud to be among), I felt the room earnestly abuzz after his talk. One of the most important thoughts that I took away from this talk was the importance of empirical validation of theoretical modeling. It is this sort of empirical validation that will inform our decisions as conservators and museum specialists moving forward with the care of our collections.
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As a conservation student entering my first year of graduate study this fall, I was at first intimidated by the topic at hand and the thought of relaying this information to the conservation community, potentially\u00a0including research scientists, techs, and seasoned conservators who may have a jump-start on understanding these concepts, their implementation, and design execution. … Continue reading “42nd Annual Meeting, Paintings & Wooden Artifacts Joint Session, May 31, "Long Term Hygromechanical Monitoring of Panel Paintings," by Paolo Dionisi Vici”<\/span><\/a><\/p>\n","protected":false},"author":201,"featured_media":10236,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,34,16,19],"tags":[73],"class_list":["post-10264","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-annual-meeting","category-paintings","category-specialty-sessions","category-wooden-artifacts","tag-aics-42nd-annual-meeting"],"_links":{"self":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts\/10264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/users\/201"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/comments?post=10264"}],"version-history":[{"count":0,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/posts\/10264\/revisions"}],"wp:attachment":[{"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/media?parent=10264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/categories?post=10264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.culturalheritage.org\/conservators-converse\/wp-json\/wp\/v2\/tags?post=10264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}