The Use of 3D Printing Filaments to Build Moisture Sensors in Porous Materials

被引:0
作者
Pasnikowska-Lukaszuk, Magdalena [1 ]
Szulzyk-Cieplak, Joanna [1 ]
Wlazlo, Magda [1 ]
Zubrzycki, Jaroslaw [1 ]
Lazuka, Ewa [1 ]
Urzedowski, Arkadiusz [1 ]
Suchorab, Zbigniew [2 ]
机构
[1] Lublin Univ Technol, Fac Math & Informat Technol, Nadbystrzycka 38, PL-20618 Lublin, Poland
[2] Lublin Univ Technol, Fac Environm Engn, Nadbystrzycka 40B, PL-20618 Lublin, Poland
关键词
measurement methods; building materials; moisture transport; TDR; 3D printing; PLA; MECHANICAL-PROPERTIES; WATER-CONTENT; PERFORMANCE;
D O I
10.3390/ma18010115
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study explores the application of materials used in 3D printing to manufacture the housings of non-invasive sensors employed in measurements using a TDR (Time Domain Reflectometry) meter. The research investigates whether sensors designed with 3D printing technology can serve as viable alternatives to conventional invasive and non-invasive sensors. This study focuses on innovative approaches to designing humidity sensors, utilizing Fused Deposition Modeling (FDM) technology to create housings for non-invasive sensors compatible with TDR devices. The paper discusses the use of 3D modeling technology in sensor design, with particular emphasis on materials used in 3D printing, notably polylactic acid (PLA). Environmental factors, such as moisture in building materials, are characterized, and the need for dedicated sensor designs is highlighted. The software utilized in the 3D modeling and printing processes is also described. The Materials and Methods Section provides a detailed account of the construction process for the non-invasive sensor housing and the preparation for moisture measurement in silicate materials using the designed sensor. A prototype sensor was successfully fabricated through 3D printing. Using the designed sensor, measurements were conducted on silicate samples soaked in aqueous solutions with water absorption levels ranging from 0% to 10%. Experimental validation involved testing silicate samples with the prototype sensor to evaluate its effectiveness. The electrical permittivity of the material was calculated, and the root-mean-square error (RMSE) was determined using classical computational methods and machine learning techniques. The RMSE obtained using the classical method was 0.70. The results obtained were further analyzed using machine learning models, including Gaussian Process Regression (GPR) and Support Vector Machine (SVM). The GPR model achieved an RMSE of 0.15, while the SVM model yielded an RMSE of 0.25. These findings confirm the sensor's effectiveness and its potential for further research and practical applications.
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页数:17
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