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Increasing sensitivity of Electric Field Imaging IC MC34940

Question asked by Martin Spengler on Apr 30, 2007
Latest reply on May 29, 2007 by Pummer Alex
Hello to all people working with the  Proximity ICs MC34940 / MC33794.

We are trying to measure hand movement with the MC34940 for our diploma thesis at the University of Applied Sciences in Augsburg, Germany.

We want to measure the movements in an area of 1 X 1 meter but at the moment the electrode we connected (front (electrode) and back (shield) made with aluminium foil, 30 X 30cm) begins to detect the hand only 10 centimetres in front of the surface of the electrode.

Does anybody know how we can increase the sensitivity to get measurements also approx. 1m in front of the surface?

Many thanks,

Message Edited by Martin (Augsburg) on 2007-04-3004:52 PM

Message Edited by Martin (Augsburg) on 2007-04-3004:52 PM