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An Implementation of ARM 920T Processor-based Ultrasonic Spirometer and Improvement of Its Sensitivity  

Lee, Cheul-Won (Department of Biomedical Engineering, Ajou University)
Kim, Young-Kil (Department of Biomedical Engineering, Ajou University)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.25, no.4, 2005 , pp. 268-273 More about this Journal
Abstract
The spirometer is a medical device that measures the instantaneous velocity of the respiratory gas flow capacity. It is used for testing the condition of the lung and patient monitoring. It measures the absolute capacity difference that includes the flow capacity signal. In this paper, by using an ultrasound sensor that reduce+ the error caused by the inertia and pressure it has improved the transmission and receiving signal. This has enabled patients with weak respiratory to use the spirometer. Also, by using the ARM 920T Processor, a precise and prompt detection system was implemented.
Keywords
ultrasound; spirometer;
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