Title :
Monitoring moisture content in composting systems using a planar resonant sensor
Author :
Fratticcioli, Elisa ; Dionigi, Marco ; Valentini, Federico ; Sorrentino, Roberto
Author_Institution :
D.I.E.I, Perugia Univ., Italy
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.
Keywords :
curve fitting; microstrip resonators; microwave detectors; microwave measurement; moisture measurement; permittivity measurement; waste management; 3 dB bandwith; composting piles; composting systems; curve fitting; measuring system; microstrip resonators; microwave planar resonant sensor; microwave transducers; moisture content monitoring; permittivity meaurement; real time measurement; resonant frequency; sample density; Frequency measurement; Microwave measurements; Microwave ovens; Microwave sensors; Moisture measurement; Monitoring; Resonance; Resonant frequency; Sensor systems; Time measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351058
