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Microwave Radio-Thermometry Based on Material Characteristic Estimation for Measuring Subcutaneous Temperature

Tae-Woo KIM, Jeong-Hwan LEE, Gilwon YOON

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Summary :

This paper presents a modified microwave radio-thermometer (MRTM) with material characteristic estimator and multiple temperature conversion tables to measure subcutaneous temperature of a living body. This estimator provides a temperature retrieval unit with material characteristics such as permittivity, conductivity, thickness and geometry of the living body. The temperature retrieval unit with multiple temperature conversion tables can select one of the tables and compute temperature value corresponding to measured radiation power. In the experiments, it was shown that the radio-thermometer could reduce measurement errors of about 0.82 to 7.68 for the cases of distilled water and mixed liquid # 5 with thickness of 29.5 cm and 9.5 cm at the temperature of 37.

Publication
IEICE TRANSACTIONS on Information Vol.E86-D No.6 pp.1149-1153
Publication Date
2003/06/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Medical Engineering

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