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Proceedings Paper

Comparison of density-independent methods for moisture measurement using microwave free-space technique
Author(s): Yangjun Zhang; Seichi Okamura
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Paper Abstract

This paper compares our proposed new method to the former methods for density-independent moisture measurement using microwave free-space technique. The measurement setups and the published results of the two methods are summarized and compared. The methods are compared in the aspects of accuracy and moisture range based on the measurements for the same samples of green tea and timber. It is shown that the accuracy by the new method is better than that by the former method for both materials in the moisture range from 2 to 30%. The results also indicates that the new method has the feature to be able to measure wide moisture range. The new method measures moisture content up to 42% for green tea, in contrast to the former method, by which the maximum measurable moisture content is approximately 30%.

Paper Details

Date Published: 27 November 2001
PDF: 8 pages
Proc. SPIE 4491, Subsurface and Surface Sensing Technologies and Applications III, (27 November 2001); doi: 10.1117/12.450172
Show Author Affiliations
Yangjun Zhang, Shizuoka Univ. (Japan)
Seichi Okamura, Shizuoka Univ. (Japan)


Published in SPIE Proceedings Vol. 4491:
Subsurface and Surface Sensing Technologies and Applications III
Cam Nguyen, Editor(s)

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