A simple and low-cost measurement system for the complex permittivity characterization of materials. - Elisa Fratticcioli; Marco Dionigi; Roberto Sorrentino (IEEE Trans. Instrum. Meas., 2004)

A Low-Cost Driving Circuitry for Permittivity and Moisture Measurement Systems. - Francesco Orfei; Marco Dionigi; Elisa Fratticcioli (IEEE Trans. Instrum. Meas., 2006)