Articles | Volume 11, issue 2
J. Sens. Sens. Syst., 11, 287–298, 2022
https://doi.org/10.5194/jsss-11-287-2022

Special issue: Sensors and Measurement Science International SMSI 2021

J. Sens. Sens. Syst., 11, 287–298, 2022
https://doi.org/10.5194/jsss-11-287-2022
Regular research article
11 Oct 2022
Regular research article | 11 Oct 2022

In situ monitoring of used-sand regeneration in foundries by impedance spectroscopy

Luca Bifano et al.

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Cited articles

Al Rashid, Q. A., Abuel-Naga, H. M., Leong, E.-C., Lu, Y., and Al Abadi, H.: Experimental-artificial intelligence approach for characterizing electrical resistivity of partially saturated clay liners, Appl. Clay Sci., 156, 1–10, https://doi.org/10.1016/j.clay.2018.01.023, 2018. 
Balmus, S.-B., Pascariu, G.-N., Creanga, F., Dumitru, I., and Sandu, D. D.: The cavity perturbation method for the measurement of the relative dielectric permittivity in the micro-wave range, J. Optoelect. ADV M., 8, 971–977, 2006. 
Belyaeva, T. A., Bobrov, P. P., Kroshka, E. S., Lapina, A. S., and Rodionova, O. V.: The effect of very low water content on the complex dielectric permittivity of clays, sand-clay and sand rocks, Meas. Sci. Technol., 28, https://doi.org/10.1088/1361-6501/28/1/014005, 2017. 
Bifano, L., Fischerauer, A., and Fischerauer, G.: Investigation of complex permittivity spectra of foundry sands, Tech. Mess., 87, 372–380, https://doi.org/10.1515/teme-2019-0121, 2020. 
Bifano, L., Fischerauer, A., Liedtke, A., and Fischerauer, G.: Characterization of sand and sand-binder systems from foundry industry with impedance spectroscopy, J. Sens. Sens. Syst., 10, 43–51, https://doi.org/10.5194/jsss-10-43-2021, 2021. 
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Short summary
This work deals with process monitoring. In particular, the process of used-sand regeneration is monitored with the aid of impedance spectroscopy and can be controlled in the future with the measurement data obtained in this way. This results in the following aspects: a consistently high quality of the process material is realized by a controlled process. At the same time, energy consumption is minimized. The result is a process that is both more resource-efficient and more economical.