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      Assessment of the Minimum Sampling Frequency to Avoid Measurement Redundancy in Microclimate Field Surveys in Museum Buildings

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          Abstract

          Monitoring temperature and relative humidity of the environment to which artefacts are exposed is fundamental in preventive conservation studies. The common approach in setting measuring instruments is the choice of a high sampling rate to detect short fluctuations and increase the accuracy of statistical analysis. However, in recent cultural heritage standards the evaluation of variability is based on moving average and short fluctuations and therefore massive acquisition of data in slowly-changing indoor environments could end up being redundant. In this research, the sampling frequency to set a datalogger in a museum room and inside a microclimate frame is investigated by comparing the outcomes obtained from datasheets associated with different sampling conditions. Thermo-hygrometric data collected in the Sorolla room of the Pio V Museum of Valencia (Spain) were used and the widely consulted recommendations issued in UNI 10829:1999 and EN 15757:2010 standards and in the American Society of Heating, Air-Conditioning and Refrigerating Engineers (ASHRAE) guidelines were applied. Hourly sampling proved effective in obtaining highly reliable results. Furthermore, it was found that in some instances daily means of data sampled every hour can lead to the same conclusions as those of high frequency. This allows us to improve data logging design and manageability of the resulting datasheets.

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          Supervised machine learning: A review of classification techniques

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              A proposed method to assess the damage risk of future climate change to museum objects in historic buildings

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                Author and article information

                Contributors
                Role: Academic Editor
                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                15 August 2016
                August 2016
                : 16
                : 8
                : 1291
                Affiliations
                [1 ]Department of Applied Physics, Universitat Politècnica de València, Av. de los Naranjos s/n, Valencia 46022, Spain; pbeltran@ 123456fis.upv.es
                [2 ]Centro de Tecnologías Físicas, Universitat Politècnica de València, Av. de los Naranjos s/n, Valencia 46022, Spain
                [3 ]Department of Physics, Sapienza Università di Roma, P.le A. Moro 2, Rome 00185, Italy; verticchio.1391542@ 123456studenti.uniroma1.it (E.V.); annamaria.siani@ 123456uniroma1.it (A.M.S.)
                Author notes
                [* ]Correspondence: fjgarcid@ 123456upvnet.upv.es ; Tel.: +34-61-063-3671
                Article
                sensors-16-01291
                10.3390/s16081291
                5017456
                27537886
                c2acd5c5-f6d5-4071-8f8a-26f3220cb949
                © 2016 by the authors; licensee MDPI, Basel, Switzerland.

                This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 06 June 2016
                : 08 August 2016
                Categories
                Article

                Biomedical engineering
                temperature and relative humidity,sampling rate,museum measurements,indoor microclimate,sorolla paintings,pio v museum

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