DocumentCode :
3599437
Title :
Improvement of thermal properties imaging system of skin by changing ambient radiation temperature in stepwise fashion
Author :
Saito, Hirokazu ; Kimura, Yuichi ; Moinudin, Hassan M D ; Otsuka, Kimio ; Shimase, Akihiro ; Okada, Shigehisa ; Tsuchiya, Kiichi ; Togawa, Tatsuo
Author_Institution :
Tokyo Med. & Dental Univ., Japan
Volume :
2
fYear :
1999
fDate :
10/1/1999 12:00:00 AM
Abstract :
Proposes a system to make images on skin thermal properties such as emissivity, thermal inertia and emissivity-corrected thermography. The properties are estimated to measure the time course of temperature during changing ambient temperature in stepwise fashion. Discharge from huge capacitances to an electrical heater which is controlled by their temperature can heat the ambient radiation from 20 to 40°C within 0.2 sec. The time course of temperature on the skin surface is almost linear against square root of time, which fits the theory. We can conclude that the system is practically applicable
Keywords :
biomedical imaging; biothermics; infrared imaging; skin; 20 to 40 degC; ambient radiation temperature; capacitances; changing ambient temperature; electrical heater; emissivity-corrected thermography; skin surface; skin thermal properties; stepwise fashion; thermal inertia; thermal properties imaging system; time course; Bridge circuits; Capacitance; Control systems; Current measurement; Resistance heating; Skin; Surface discharges; Temperature control; Temperature measurement; Time measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
ISSN :
1094-687X
Print_ISBN :
0-7803-5674-8
Type :
conf
DOI :
10.1109/IEMBS.1999.804273
Filename :
804273
Link To Document :
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