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Optical Engineering

Infrared radiometry of thermally insulated skin using infrared fiber
Author(s): Aner Lev; Boris Khanokh; Meir Nitzan
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Paper Abstract

The steady-state temperature of uncovered skin depends, besides other factors, on skin blood flow, but the correlation between the two parameters is low. The steady-state temperature of thermally insulated skin is less affected by the environment and the temperature gradients underneath and is therefore expected to better reflect skin blood flow. In the present study, comparative measurements of steady-state temperature were performed on uncovered skin and on partially thermally insulated skin. The device for the thermal insulation was constructed of a Teflon capsule with an infrared fiber, which conveyed a portion of the infrared radiation emitted from the skin into an infrared radiometer. Temperature was recorded on the hand and forearm, at heart level and above it, for uncovered and thermally insulated skin. The measurements showed that the temperature of thermally insulated skin better reflects the temporal and spatial changes of skin blood flow than uncovered skin temperature. The noncontact temperature measurement of partially thermally insulated skin provides, therefore, a method for qualitative assessment of changes in skin blood flow.

Paper Details

Date Published: 1 February 1996
PDF: 4 pages
Opt. Eng. 35(2) doi: 10.1117/1.600918
Published in: Optical Engineering Volume 35, Issue 2
Show Author Affiliations
Aner Lev, Jerusalem College of Technology (Israel)
Boris Khanokh, Jerusalem College of Technology (Israel)
Meir Nitzan, Jerusalem College of Technology (Israel)


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