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Design and Implementation of Mobile ]Respiration Detection Diagnostic System using Ultrasound Sensing Method fficient Multicasting Environment  

김동학 (아주대학교)
김영길 (아주대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.2, 2004 , pp. 509-515 More about this Journal
Abstract
Pulmonary function tests are widely used to diagnose and determine patients' therapy in clinic. And it was also applied in the research of the physiology and dynamics for lung disease. Among the pulmonary function tests, spirometry is the most easy and economic test. Spirometers are medical instruments that measure the instantaneous rate of volume flow of respired Bas. The mechanical spirometer was mostly used in the past. Up to the present, the most popular method of spirometer is the differential pressure technique with which change in the volume of flow are transferred to change in pressure. This kind of instrument suffers from several limitations, pressure drop, difficulty in maintenance and short period of calibration. Therefore, this study has begun to implement ultrasound spirometer, which is free of pressure loss and has wide range, focusing on the flow measurement technique and diagnostic algorithm.
Keywords
폐활량 검사;초음파 센싱;호흡량 측정;
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