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Proceedings Paper

A millimeter-wave reflectometer for whole-body hydration sensing
Author(s): W.-D. Zhang; E. R. Brown
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Paper Abstract

This paper demonstrates a non-invasive method to determine the hydration level of human skin by measuring the reflectance of W-band (75-110 GHz) and Ka-band (26-40 GHz) radiation. Ka-band provides higher hydration accuracy (<1%) and greater depth of penetration (> 1 mm), thereby allowing access to the important dermis layer of skin. W-band provides less depth of penetration but finer spatial resolution (~2 mm). Both the hydration sensing concept and experimental results are presented here. The goal is to make a human hydration sensor that is 1% accurate or better, operable by mechanically scanning, and fast enough to measure large areas of the human body in seconds.

Paper Details

Date Published: 12 May 2016
PDF: 9 pages
Proc. SPIE 9829, Radar Sensor Technology XX, 98290E (12 May 2016); doi: 10.1117/12.2224273
Show Author Affiliations
W.-D. Zhang, Wright State Univ. (United States)
E. R. Brown, Wright State Univ. (United States)

Published in SPIE Proceedings Vol. 9829:
Radar Sensor Technology XX
Kenneth I. Ranney; Armin Doerry, Editor(s)

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