Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Performance Enhancement of Ultrasonic Sensitivity by Improving the Transmitter Circuit

  • Lee, Cheul-Won (Department of Biomedical Engineering, Ajou University) ;
  • Kim, Young-Kil (Department of Electronic Engineering, Ajou University)
  • Published : 2006.08.01
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Abstract

We have developed the spirometer system; many patients having weak respiration have difficulties in using conventional spirometers in hospitals, because their weak breath can be affected by the errors of inertia and instrumental pressure. We have developed a new ultrasound spirometer using an ARM 920T processor. To detect weak respiratory signals, we add a comparator circuit, which can afford more information of respiration characteristics such as respiration volume, directions, and velocities. We have also developed Gill for graphical display of respiration characteristics. Through the pilot test, it has been verified that the developed spirometer is operating reliably.

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References

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