{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T18:21:59Z","timestamp":1773512519710,"version":"3.50.1"},"reference-count":22,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2010,4,28]],"date-time":"2010-04-28T00:00:00Z","timestamp":1272412800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper describes an innovative design of a wireless, passive LC sensor and its application for monitoring of water content in building materials. The sensor was embedded in test material samples so that the internal water content of the samples could be measured with an antenna by tracking the changes in the sensor\u2019s resonant frequency. Since the dielectric constant of water was much higher compared with that of the test samples, the presence of water in the samples increased the capacitance of the LC circuit, thus decreasing the sensor\u2019s resonant frequency. The sensor is made up of a printed circuit board in one metal layer and water content has been determined for clay brick and autoclaved aerated concrete block, both widely used construction materials. Measurements were conducted at room temperature using a HP-4194A Impedance\/Gain-Phase Analyzer instrument.<\/jats:p>","DOI":"10.3390\/s100504270","type":"journal-article","created":{"date-parts":[[2010,4,28]],"date-time":"2010-04-28T11:12:11Z","timestamp":1272453131000},"page":"4270-4280","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Monitoring of Water Content in Building Materials Using a Wireless Passive Sensor"],"prefix":"10.3390","volume":"10","author":[{"given":"Goran","family":"Stojanovi\u0107","sequence":"first","affiliation":[{"name":"Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovi\u0107a 6, 21000 Novi Sad, Serbia"}]},{"given":"Milan","family":"Radovanovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovi\u0107a 6, 21000 Novi Sad, Serbia"}]},{"given":"Mirjana","family":"Male\u0161ev","sequence":"additional","affiliation":[{"name":"Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovi\u0107a 6, 21000 Novi Sad, Serbia"}]},{"given":"Vlastimir","family":"Radonjanin","sequence":"additional","affiliation":[{"name":"Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovi\u0107a 6, 21000 Novi Sad, Serbia"}]}],"member":"1968","published-online":{"date-parts":[[2010,4,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1177\/0143624408092423","article-title":"Suitability of time domain reflectometry for monitoring moisture in building materials","volume":"29","author":"Phillipson","year":"2008","journal-title":"Building Serv. 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(1999, January April). Packaging interferometric sensor for civil structural monitoring. Kyongju, Korea.","DOI":"10.1117\/12.2302116"},{"key":"ref_11","unstructured":"Kurz, J.H., Rieder, H., Stoppel, M., and Taffe, A. (3,, January June). Control and data acquisition of automated multi-sensor systems in civil engineering. Nantes, France."},{"key":"ref_12","unstructured":"Soga, K., Cipolla, R., Bennett, P., Seshia, A., Middleton, C., Wassell, I., Stajano, F., and Hoult, N. (2008). Intelligent City-Sensors for Monitoring Civil Engineering Infrastructure, CamBridgeSens."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/S0924-4247(01)00624-0","article-title":"Design and application of a wireless, passive, resonant-circuit environmental monitoring sensor","volume":"93","author":"Ong","year":"2001","journal-title":"Sens. Actuator"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"219","DOI":"10.3390\/s20600219","article-title":"Remote query resonant-circuit sensors for monitoring of bacteria growth: Application to food quality control","volume":"2","author":"Ong","year":"2002","journal-title":"Sensors"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"193","DOI":"10.3390\/s10600193","article-title":"A carbon nanotube-based sensor for CO2 monitoring","volume":"1","author":"Ong","year":"2001","journal-title":"Sensors"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2053","DOI":"10.1109\/JSEN.2008.2007681","article-title":"A wireless, passive embedded sensor for real-time monitoring of water content in civil engineering materials","volume":"8","author":"Ong","year":"2008","journal-title":"IEEE Sensor. J"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1747","DOI":"10.3390\/s7091747","article-title":"A wireless, passive, sensor for quantifying packaged food quality","volume":"7","author":"Tan","year":"2007","journal-title":"Sensors"},{"key":"ref_18","unstructured":"BS EN 771-1 Specification for masonry units Part 1: Clay masonry units."},{"key":"ref_19","unstructured":"BS EN 771-4 Specification for masonry units. Autoclaved aerated concrete masonry units."},{"key":"ref_20","unstructured":"Testo. Available online: www.testo.com\/ (accessed on 29 March 2010)."},{"key":"ref_21","first-page":"1","article-title":"Novel measurement method of humidity within construction structures","volume":"7","author":"Voutilainen","year":"2002","journal-title":"Helsinki University of Technology, Series E: Electronic Publications"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/S0924-4247(01)00720-8","article-title":"A passive wireless integrated humidity sensor","volume":"95","author":"Harpster","year":"2002","journal-title":"Sens. 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