Influence of shielding arrangement on ECT sensors
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Electrical capacitance tomography sensorFinite element methodShielding arrangementStanding capacitanceSensitivity mapSensing fieldReconstructed image
Martínez Olmos, A.; Alberdi Primicia, J.; Fernández Marrón, J.L. Influence of shielding arrangement on ECT sensors. Sensors, 6: 1118-1127 (2006). [http://hdl.handle.net/10481/32728]
PatrocinadorThis job was financed for the Spanish Education and Science Ministry with a CICYT grant (reference DPI2002/04550/C07/04).
This paper presents a full 3D study of a shielded ECT sensor. The spatial resolution and effective sensing field are obtained by means of Finite Element Method based simulations and are the compared to a conventional sensor's characteristics. An effective improvement was found in the sensitivity in the pipe cross-section, resulting in enhanced quality of the reconstructed image. The sensing field along the axis of the sensor also presents better behaviour for a shielded sensor.