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Proceedings Paper

Detection of subsurface water content of eggs using bistatic microwave sensors
Author(s): Ferenc Volgyi
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Paper Abstract

This paper introduces a microwave measurement setup using three microstrip antennas integrated with a microwave oscillator and Schottky-diode detectors used as bistatic microwave sensors. We have measured the microwave attenuation (water content) and the bistatic radar cross section (dimensions) of eggs having different time of storage (see Fig. 1). The measured attenuation for fresh egg is 8 - 10 dB at the frequency of 14.2 GHz, the variation with time is: dA [dB] equals -0.033T (days), thus nearly -1 dB/30 days. Our next program is to create a microwave equipment for automatic selection of old eggs. The basic arrangement and the results of our measurement are discussed.

Paper Details

Date Published: 15 October 1999
PDF: 8 pages
Proc. SPIE 3752, Subsurface Sensors and Applications, (15 October 1999); doi: 10.1117/12.365726
Show Author Affiliations
Ferenc Volgyi, Technical Univ. of Budapest (Hungary)

Published in SPIE Proceedings Vol. 3752:
Subsurface Sensors and Applications
Cam Nguyen, Editor(s)

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