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Open AccessArticle

Investigation of the Impact of Infrared Sensors on Core Body Temperature Monitoring by Comparing Measurement Sites

1
Department of Materials Science and Engineering, University of California, San Diego, CA 92093, USA
2
Africa Research Center, National Chung Hsing University, Taichung 40227, Taiwan
3
Department of Bio-industrial Mechatronics Engineering, National ChungHsing University, Taichung 40227, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(10), 2885; https://doi.org/10.3390/s20102885
Received: 25 April 2020 / Revised: 13 May 2020 / Accepted: 19 May 2020 / Published: 19 May 2020
(This article belongs to the Section Physical Sensors)
Many types of thermometers have been developed to measure body temperature. Infrared thermometers (IRT) are fast, convenient and ease to use. Two types of infrared thermometers are uses to measure body temperature: tympanic and forehead. With the spread of COVID-19 coronavirus, forehead temperature measurement is used widely to screen people for the illness. The performance of this type of device and the criteria for screening are worth studying. This study evaluated the performance of two types of tympanic infrared thermometers and an industrial infrared thermometer. The results showed that these infrared thermometers provide good precision. A fixed offset between tympanic and forehead temperature were found. The measurement values for wrist temperature show significant offsets with the tympanic temperature and cannot be used to screen fevers. The standard operating procedure (SOP) for the measurement of body temperature using an infrared thermometer was proposed. The suggestion threshold for the forehead temperature is 36 °C for screening of fever. The body temperature of a person who is possibly ill is then measured using a tympanic infrared thermometer for the purpose of a double check. View Full-Text
Keywords: body temperature; COVID-19; infrared thermometer; forehead temperature; tympanic temperature body temperature; COVID-19; infrared thermometer; forehead temperature; tympanic temperature
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MDPI and ACS Style

Chen, H.-Y.; Chen, A.; Chen, C. Investigation of the Impact of Infrared Sensors on Core Body Temperature Monitoring by Comparing Measurement Sites. Sensors 2020, 20, 2885.

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