Patent ID: 9170224
Filing Date: 2015-10-27
Classification: A61B,G01N,G01R

Abstract:
1. An electrical capacitance tomography (ECT) sensor comprising: a plurality of electrodes, each configured to operate exclusively as an excitation electrode in a first condition and exclusively as a receiving electrode in a second condition, wherein a first set of electrodes in said plurality of electrodes includes more than one electrode and a second set of electrodes in said plurality of electrodes includes more than one electrode, each electrode in the first set of electrodes being in the first condition simultaneously, and each electrode in the second set of electrodes being in the second condition simultaneously; an electrode control module connected to each of the plurality of electrodes and configured to control a condition of each of the plurality of electrodes; and a plurality of lock-in amplifiers connected to an output of the electrode control module and connected to a data acquisition system of a computer.