Contactless transmission can be, in a lot of cases, a good answer when the measurement environment has characteristics unsuitable for the classical cable-transmission. In this article the contactless transmission problem is analyzed also when the distance between readout circuit and sensor circuit changes. A new measurement method that comprise also the evaluation of the distance is proposed. A parameter, that has a very little sensitivity to sensing capacitance and high sensitivity to the distance, is identified. The measurement method has been tested in the laboratory and the experimental results are reported.
Contactless transmission of measurement information between sensor and conditioning electronics
MARIOLI, Daniele;SARDINI, Emilio;SERPELLONI, MAURO;TARONI, Andrea
2005-01-01
Abstract
Contactless transmission can be, in a lot of cases, a good answer when the measurement environment has characteristics unsuitable for the classical cable-transmission. In this article the contactless transmission problem is analyzed also when the distance between readout circuit and sensor circuit changes. A new measurement method that comprise also the evaluation of the distance is proposed. A parameter, that has a very little sensitivity to sensing capacitance and high sensitivity to the distance, is identified. The measurement method has been tested in the laboratory and the experimental results are reported.File in questo prodotto:
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