A NEW TRANSDUCER OF DOUBLE PROCESSING FOR CAPACITIVE TOMOGRAPHY
Journal Title: Metrology and Measurement Systems - Year 2007, Vol 14, Issue 2
Abstract
The paper presents a new solution of a system for the measurement of small capacities, applied in capacitive tomography. Some known versions of transducers have been discussed. Next, the author has presented his own solution, using a transducer of double processing. In the first step, capacity is changed into frequency, and next the frequency is changed into voltage. The change of capacity to frequency provides introduction of the measuring capacity into the resonant system of a generator. Small capacity changes in the capacitive tomograph influence the changes of the frequency generated by the generator. The proposed solution provides a far better stability of the measurement results related to typical solutions applied in capacitive tomography. The paper presents results of the tests performed for some systems and the obtained results were compared.
Authors and Affiliations
MARIUSZ RZĄSA
Keywords
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