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Observations of upper-extremity skin temperature and corresponding overall-body thermal sensations and comfort
AbstractThis paper explores how upper extremity skin temperatures correlate with overall-body thermal sensation. Skin temperature measurements of the finger, hand, and forearm might be useful in monitoring and predicting people's thermal state. Subjective perceptions of overall thermal sensation and comfort were collected by repeated surveys, for subjects in a range of test chamber temperatures. A positive temperature gradient (finger warmer than the forearm) of as much as 2K was seen when subjects felt warm and hot, while a negative temperature gradient (finger colder than the forearm) as much as 8.5K was seen for cool and cold subjects. A useful warm/cold boundary of 30°C was found in finger temperature, for both steady state and transient conditions. When finger temperature was above 30°C, or finger-forearm skin temperature gradient above 0K, there was no cool discomfort. When finger temperature was below 30°C, or the finger-forearm skin temperature gradient less than 0K, cool discomfort was a possibility. Finger temperature and finger-forearm temperature gradient are very similar in their correlation to overall sensation. We also examine how overall sensation is affected by actively manipulating the hand's temperature.
Observations of upper-extremity skin temperature and corresponding overall-body thermal sensations and comfort
AbstractThis paper explores how upper extremity skin temperatures correlate with overall-body thermal sensation. Skin temperature measurements of the finger, hand, and forearm might be useful in monitoring and predicting people's thermal state. Subjective perceptions of overall thermal sensation and comfort were collected by repeated surveys, for subjects in a range of test chamber temperatures. A positive temperature gradient (finger warmer than the forearm) of as much as 2K was seen when subjects felt warm and hot, while a negative temperature gradient (finger colder than the forearm) as much as 8.5K was seen for cool and cold subjects. A useful warm/cold boundary of 30°C was found in finger temperature, for both steady state and transient conditions. When finger temperature was above 30°C, or finger-forearm skin temperature gradient above 0K, there was no cool discomfort. When finger temperature was below 30°C, or the finger-forearm skin temperature gradient less than 0K, cool discomfort was a possibility. Finger temperature and finger-forearm temperature gradient are very similar in their correlation to overall sensation. We also examine how overall sensation is affected by actively manipulating the hand's temperature.
Observations of upper-extremity skin temperature and corresponding overall-body thermal sensations and comfort
Wang, Danni (author) / Zhang, Hui (author) / Arens, Edward (author) / Huizenga, Charlie (author)
Building and Environment ; 42 ; 3933-3943
2006-06-20
11 pages
Article (Journal)
Electronic Resource
English
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Investigation of human body skin temperatures as a bio-signal to indicate overall thermal sensations
| British Library Online Contents | 2012
Investigation of human body skin temperatures as a bio-signal to indicate overall thermal sensations
| Online Contents | 2012