Development of a Core Body Thermometer Applicable for High-Temperature Environment Based on the Zero-Heat-Flux Method
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- Hanzi Lu
- Graduate School of Natural Science & Technology, Kanazawa University, Kanazawa 920-1164, Japan
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- Shun Aratake
- Graduate School of Natural Science & Technology, Kanazawa University, Kanazawa 920-1164, Japan
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- Hisashi Naito
- Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1164, Japan
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- Masamichi Nogawa
- Faculty of Health Sciences, Komatsu University, Komatsu 923-0961, Japan
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- Tetsu Nemoto
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa 920-0942, Japan
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- Tatsuo Togawa
- Advanced Research Center for Human Sciences, Waseda University, Tokorozawa 359-1192, Japan
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- Shinobu Tanaka
- Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1164, Japan
抄録
<jats:p>Monitoring core body temperature (CBT) allows observation of heat stress and thermal comfort in various environments. By introducing a Peltier element, we improved the zero-heat-flux core body thermometer for hot environments. In this study, we performed a theoretical analysis, designed a prototype probe, and evaluated its performance through simulator experiments with human subjects. The finite element analysis shows that our design can reduce the influence of external temperature variations by as much as 1%. In the simulator experiment, the prototype probe could measure deep temperatures within an error of less than 0.1 °C, regardless of outside temperature change. In the ergometer experiment with four subjects, the average difference between the prototype probe and a commercial zero-heat-flux probe was +0.1 °C, with a 95% LOA of −0.23 °C to +0.21 °C. In the dome sauna test, the results measured in six of the seven subjects exhibited the same trend as the reference temperature. These results show that the newly developed probe with the Peltier module can measure CBT accurately, even when the ambient temperature is higher than CBT up to 42 °C.</jats:p>
収録刊行物
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- Sensors
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Sensors 23 (4), 1970-, 2023-02-09
MDPI AG