The Effects of Hematocrit , Amplifier Input Impedance and Magnet Excitation Frequency on the Accuracy of Electromagnetic Flowmeters

  • Philip A. Wagoner
  • Published 1997
___________ _ Since the introduction of electromagnetic flowmeters, clinical users have found it necessary to contend with several problems in the accuracy of the flow signal. The cumulative results of these inaccuracies has commonly been referred to as the ''hematocrit effect.'' Blood was pumped through an in vitro circuit containing a segment of canine… CONTINUE READING