A microwave planar resonant sensor for the measurement of moisture content in composting piles is presented. Compared to the classical oven-dry method, the use of a microwave sensor allows real time measurement. The measuring system requires only the calculation of two parameters, namely the resonant frequency and the 3 dB bandwith, thus achieving a substantial reduction of cost and computation time. The influence of the sample density on the measured parameters has been investigated.
Monitoring Moisture Content in Composting Systems Using a Planar Resonant Sensor
FRATTICCIOLI, ELISA;DIONIGI, Marco;SORRENTINO, Roberto
2004
Abstract
A microwave planar resonant sensor for the measurement of moisture content in composting piles is presented. Compared to the classical oven-dry method, the use of a microwave sensor allows real time measurement. The measuring system requires only the calculation of two parameters, namely the resonant frequency and the 3 dB bandwith, thus achieving a substantial reduction of cost and computation time. The influence of the sample density on the measured parameters has been investigated.File in questo prodotto:
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