iten
Ateneo
iten
Ateneo

Non-contact measurement techniques

Description

The activity focuses on the development, integration, and industrial application of advanced measurement systems, with a distinctive specialization in non-contact techniques for quality control, process monitoring, and diagnostics. The approach combines optical, acoustic, and thermal instrumentation with advanced algorithms to support the digitization and sustainability of industrial production.

The main methodologies used include:

  • Vision-based techniques and Optics: Development of artificial vision systems in the visible, infrared (IR), and multi/hyperspectral bands (e.g., for material identification or chemical-physical analysis). The activity includes laser triangulation and 3D scanning (including robotic scanning) for geometric reconstructions, in-line dimensional checks, and reverse engineering. 2D and 3D Digital Image Correlation (DIC) is also applied for full-field measurement of structural displacements and deformations.
  • Vibroacoustics: Use of Laser Doppler Vibrometry (LDV) (single and multi-point) for non-contact dynamic characterization, combined with Operational Modal Analysis, Beamforming, and psychoacoustics techniques for product optimization (e.g., household appliances, automotive).
  • Non-Destructive Testing (NDT): Application of both passive (process monitoring) and active (Flash or Long Pulse) thermography for the identification of internal defects and inhomogeneities in materials. The group also develops solutions based on ultrasound (including laser ultrasonics and air-coupled transducers), shearography, and industrial computed tomography (CT) for the internal inspection of complex components such as composites (CFRP/GFRP) and batteries.
  • Artificial Intelligence-based approaches: Integration of measurement techniques with AI and machine learning algorithms for automatic defect recognition, product classification, and predictive data analysis within cyber-physical architectures.

Applications include manufacturing (automotive, household appliances), aerospace, civil engineering/construction, agriculture, and biomedicine.

Publications
  • Cavuto, A., Martarelli, M., Pandarese, G., Revel, G.M. and Tomasini, E.P., 2021. FEM based design of experiment for train wheelset diagnostics by laser ultrasonics. Ultrasonics, 113, p.106368. https://doi.org/10.1016/j.ultras.2021.106368
  • Di Maio, D., Castellini, P., Martarelli, M., Rothberg, S., Allen, M.S., Zhu, W.D. and Ewins, D.J., 2021. Continuous Scanning Laser Vibrometry: A raison d’être and applications to vibration measurements. Mechanical systems and signal processing, 156, p.107573. https://doi.org/10.1016/j.ymssp.2020.107573
  • Caputo, A., Calcagni, M.T., Salerno, G., Mammoliti, E. and Castellini, P., 2025. Measurement of fracture networks in rock sample by x-ray tomography, convolutional filtering and deep learning. Sensors, 25(14), p.4409. https://doi.org/10.3390/s25144409 
  • Medici, V., Martarelli, M., Castellini, P., Van De Kamp, H. and Paone, N., 2025. 2D temperature distribution reconstruction of steel bars under thermal transient from sequences of occluded infrared images. Measurement, 246, p.116693 https://doi.org/10.1016/j.measurement.2025.116693
  • Quattrocchi, A., Alizzio, D., Capponi, L., Tocci, T., Marsili, R., Rossi, G., Pasinetti, S., Chiariotti, P., Annessi, A., Castellini, P. and Martarelli, M., 2022. Measurement of the structural behaviour of a 3D airless wheel prototype by means of optical non-contact techniques. Acta Imeko, 11(3), pp.1-8. https://doi.org/10.21014/acta_imeko.v11i3.1268

Staff

Prof. Gian Marco Revel
Tel. +39 071 220 4518
email: gm.revel@staff.univpm.it

Prof. Nicola Paone
Tel. +39 071 220 4490
email: n.paone@staff.univpm.it

Prof. Paolo Castellini
Tel. +39 071 220 4441
email: p.castellini@staff.univpm.it

Prof.ssa Milena Martarelli
Tel. +39 071 220 4542
email: m.martarelli@staff.univpm.it