Conference Contibution Details


P Xiao, MEP de Jesus, Y Cui, RE Imhof & the TEWL Calibration Consortium.
Poster, World Congress on Non-Invasive Studies of the Skin, Philadelphia, September 2005.



The droplet method for TEWL calibration is a new technique, which has the advantages of gravimetric-based calibration, traceability and good repeatability. It can be used for calibrating any TEWL instruments that is capable of recording a time series of water vapour flux density readings. In this paper, we will present a mathematical analysis of calibration errors for both open-chamber and closed chamber TEWL instruments. The effects of sensor position, sensor calibration, chamber length, droplet position, and instrument response speed are analysed.



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