Feasibility of Using a 300 GHz Radar to Detect Fractures and Lithological Changes in Rocks - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Remote Sensing Année : 2023

Feasibility of Using a 300 GHz Radar to Detect Fractures and Lithological Changes in Rocks

Federico Sanjuan
Frédéric Fauquet
  • Fonction : Auteur
Bertrand Fasentieux
  • Fonction : Auteur

Résumé

The detection and quantification of fractures in rocks, as well as the detection of lithological changes, are of particular interest in scientific fields, such as construction materials, geotechnics, reservoirs and the diagnostics of dielectric composite materials and cultural heritage objects. Therefore, different methods and techniques have been developed and improved over the years to provide solutions, e.g., seismic, ground-penetrating radar and X-ray microtomography. However, there are always trade-offs, such as spatial resolution, investigated volume and rock penetration depth. At present, high-frequency radars (>60 GHz) are available on the market, which are compact in size and capable of imaging large areas in short periods of time. However, the few rock applications that have been carried out have not provided any information on whether these radars would be useful for detecting fractures and lithological changes in rocks. Therefore, in this work, we performed different experiments on construction and reservoir rocks using a frequency-modulated continuous wave radar working at 300 GHz to evaluate its viability in this type of application. The results showed that the radar quantified millimeter fractures at a 1 cm rock penetration depth with a sensitivity of 500 µm. Furthermore, lithological changes were identified, even when detecting interfaces generated by the artificial union of two samples from the same rock.
Fichier principal
Vignette du fichier
remotesensing-15-02605.pdf (9.17 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04264830 , version 1 (30-10-2023)

Identifiants

Citer

Federico Sanjuan, Frédéric Fauquet, Bertrand Fasentieux, Patrick Mounaix, Jean-Paul Guillet. Feasibility of Using a 300 GHz Radar to Detect Fractures and Lithological Changes in Rocks. Remote Sensing, 2023, 15 (10), pp.2605. ⟨10.3390/rs15102605⟩. ⟨hal-04264830⟩
20 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More