Technology of Human Oral Breath Humidity and Temperature Measurement

• Main Authors: Yao-Ho Wu, 吳樂禾
• Other Authors: 陳加忠
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/27bxwr

碩士 === 國立中興大學 === 生物產業機電工程學系所 === 99 === Gas analysis and monitoring of human respiratory is a topic which has been strived in the medicine. Lots of research and instruments are used for physical/ chemical human breathing gas measured. Excepting the expensive instruments, some portable sensors have been studied on human breathing. The human airway has the ability to warm and humidify the nearby air. The temperature and humidity of the inhaled air can be measured and served as an index for human breathing analysis. The quantifications of the changed temperature and humidity by the breath of test people were discussed in this study. The measurand were served as the personal air-conditioning index of the airway for the clinical. The sensing system of this study could be integrated with other sensors for physical/ chemical human breathing gas measuring. To ensure the correction of the measurement for the human breathing temperature and humidity, a sensing system with the traceability must be built. Then the temperature and humidity from oral breathing and the environment were measured with calibrated thermocouple and humidity sensors. These data were coupled with DAQ. Changes of temperature and humidity by human oral breathing among different physical states and sexes were analysed with statistic test. Humidity should be transferred into absolute humidity to express its meaning. According to the result, the temperatures and humidities from human oral breathing were changed with different actions. In this study, the average temperature and humidity changed by oral breathing of female samples were higher than that of the male’s.