An upgraded automatic piezoelectric quartz crystal dosimeter for environmental monitoring in indoor cultural heritage conservation areas
An upgraded automatic piezoelectric quartz crystal dosimeter for environmental monitoring in indoor cultural heritage conservation areas
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DOI：
10.1016/j.snb.2013.09.073
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发表时间：
2014-01-01
影响因子：
8.4
通讯作者：
Araujo de Faria, Dalva Lucia
中科院分区：
文献类型：
--
作者：
Cavicchioli, Andrea;Neves, Carlos Antonio;Araujo de Faria, Dalva Lucia
在文化遗产保护领域，确定和监测室内微环境对材料的侵蚀性是保护专业人员的一项重要任务，也是全面确定博物馆环境管理战略的重要一步。本文描述了基于石英晶体微量天平的升级设备的组装和操作，该设备是为了监测可在压电石英晶体上涂覆薄膜的艺术材料的老化而开发的。老化率发生在电影中的保护区曝光期间的数据被用来评估特定的微环境中的风险损坏的绘画艺术作品。这种新的设备，基于早期的原型，现在提供了板载传感器，用于同时测量温度，相对湿度和光强度和类型。这一改进有助于解释这种压电剂量计的响应，并补充其信息，从而提高风险评估的质量。在这里，监测设备的潜力在巴西圣保罗市的两个最重要的博物馆中进行的实地活动中显示出来：历史博物馆（保利斯塔博物馆）和造型艺术博物馆（国家美术馆）。使用胶粘清漆作为目标材料，可以对两个博物馆的展览和存储区域的环境侵蚀程度进行排名，并表明光入射（可能还有空气污染物）是主要的老化因素，至少就有机材料而言。(C)2013爱思唯尔有限公司版权所有。
In the field of cultural heritage preservation, establishing and monitoring the aggressiveness of indoor microenvironments towards materials is an essential task for conservation professionals and represents an important step in the overall definition of environmental management strategies in museums. This paper describes the assembly and operation of an upgraded device based on quartz crystal microbalances developed for monitoring the ageing of artistic materials that can be coated as thin films on piezoelectric quartz crystals. Data on the ageing rates occurring in the films during exposure in a conservation area are used to appraise that specific microenvironment in terms of risk of damage for painted works of art. This novel device, based on an earlier prototype, is now provided with on-board sensors for simultaneous measurement of temperature, relative humidity and light intensity and type. This improvement is helpful to interpret the response of such piezoelectric dosimeters and to complement their information, thus enhancing the quality of the risk assessment. Here, the potentials of the monitoring device are shown in field campaigns carried out in two of the most important museums of the city of Sao Paulo, Brazil: a history museum (Museu Paulista) and a plastic arts museum (Pinacoteca do Estado). Using mastic varnish as a target material, it was possible to rank the degree of environmental aggressiveness of the exhibition and storage areas of the two museums and suggest that light incidence (and possibly airbourne pollutants) is the main ageing factor, at least as far as organic materials are concerned. (C) 2013 Elsevier B.V. All rights reserved.