Development of a Low-Cost Airborne Ultrasound Sensor for the Detection of Brick Joints behind a Wall Painting

Sensors

Fernando-Juan Garc໚-Diego¹  José Mar໚ Bravo¹  Juan Pérez-Miralles²  Hຜtor Estrada³ 

[1] Departamento de Física Aplicada, Universidad Politécnica de Valencia, Av. de los Naranjos s/n, Valencia 46022, Spain; E-Mails:;Servicio de Conservación y Restauración de la Exma, Diputación de Castellón (SCRC), Complejo Socio-Educativo de Penyeta Roja s/n, Castellón 12080, Spain; E-Mail:;Centro de Tecnologías Físicas, Unidad Asociada ICMM-CSIC/UPV, Universidad Politécnica de Valencia, Av. de los Naranjos s/n, Valencia 46022, Spain; E-Mail:

关键词: non destructive test;    ultrasound;    wall painting;    brick joints;   

DOI  :  10.3390/s120201299

来源: mdpi

【 摘 要 】

Non-destructive methods are of great interest for the analysis of cultural heritage. Among the different possible techniques, this paper presents a low cost prototype based on the emission and reception of airborne ultrasound without direct contact with the test specimen. We successfully performed a method test for the detection of brick joints under a XVth century Renaissance fresco of the Metropolitan Cathedral of the city of Valencia (Spain). Both laboratory and in situ results are in agreement. Using this prototype system, an early moisture detection system has been installed in the dome that supports the fresco. The result is encouraging and opens interesting prospects for future research.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland