Fig. 3

EIT data acquired on a resistor mesh phantom with a single-ended current source. a One frame of data is acquired with no disconnected electrode. Then, electrode 4 is disconnected by full disconnection and connecting a high value resistor. b Data acquired while electrode 4 acts as a positive excitation electrode. c Data acquired when the disconnected electrode 4 acts as negative excitation electrode. d Data acquired while electrodes 0 and 8 act as the drive pair and electrode 4 is disconnected: full disconnected 1 is the case in which the measurement including the disconnected electrode closed to a trivial value; full disconnected 2 is the case in which measurement is statured