Influence of electrode impedance changes on the common-mode rejection ratio in bioimpedance measurements.

@article{Petrova1999InfluenceOE,
  title={Influence of electrode impedance changes on the common-mode rejection ratio in bioimpedance measurements.},
  author={G. Petrova},
  journal={Physiological measurement},
  year={1999},
  volume={20 4},
  pages={N11-9}
}
  • G. Petrova
  • Published 1999 in Physiological measurement
Bioelectrical impedance in vivo measurements suffer from many potential sources of error due to the patient-instrument interface. The total common-mode rejection ratio (CMRR(T)) was investigated experimentally for three measurement channel circuit versions, including electrode-skin impedance imbalance. The first version was of the 'classical' type. The second one makes use of a differential filter at the input of the instrumentation amplifier. The third circuit was a frequency-converting… CONTINUE READING