Title :
A high sensitivity measuring technique for capacitive sensor transducers
Author_Institution :
IEI-CNR, Pisa, Italy
fDate :
12/1/1990 12:00:00 AM
Abstract :
A measuring technique is proposed for a capacitive-type sensor that has been developed to measure the density of dielectric powder gaseous suspensions. The basic principle of the proposed technique is to measure the variations of sensor capacitance by measuring the phase shift between voltage and current in a series RLC circuit tuned to resonance. Experimental results obtained with the technique are presented
Keywords :
capacitance measurement; density measurement; electric sensing devices; powders; transducers; capacitive sensor transducers; density measurement; dielectric powder gaseous suspensions; phase shift measurement; series RLC circuit; Capacitance measurement; Capacitive sensors; Current measurement; Density measurement; Dielectric measurements; Gas detectors; Phase measurement; Powders; Suspensions; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
