Cs. Koukourlis et al., A 32-ELECTRODE DATA-COLLECTION SYSTEM FOR ELECTRICAL-IMPEDANCE TOMOGRAPHY, IEEE transactions on biomedical engineering, 42(6), 1995, pp. 632-636
A 32-electrode data collection system for Electrical Impedance Tomogra
phy (EIT) will be presented, In this system, the demodulator is a mult
iplexed sample and hold (S&H) circuit followed by a voltage difference
stage, This configuration provides high CMRR due to the low (almost D
C) operating frequency of the signals the difference stage is required
to process.