Measurement of body temperature using expiratory air temperature method.
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概要
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In measuring body temperature, there are some errors caused by the difference of condition in which a thermometer is touched on the body surface and it takes some time to measure the temperature because of larger time constant of heat response of sensor and response time of body to set equilibrium thermal condition.For the measurement of body temperature without such demerits, the characteristics of expiratory air temperature were examined. The condition in which the expiratory air temperature was measured stably was found. It needs some period of quiet breathing before the measurement and inspiration must be done by nose. It was found that the correlation coefficient between the expiratory air temperature and oral temperature is larger than the coefficient between axillary site temperature and oral temperature.The new system was designed, which uses two thermisters to measure the expiratory air temperature with less than 0.1°C error in one second of the time constant.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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