Title :
Effect of grain shape and size on single-grain microstrip ring resonator (MRR) moisture sensor
Author :
Abegaonkar, M.P. ; Karekar, R.N. ; Aiyer, R.C. ; Cho, Y.K.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Taegu, South Korea
Abstract :
The microstrip ring resonator (MRR) is used as a miniaturized single-grain moisture sensor for grains of chickpea (Cicer Arietinum L.), wheat (Triticum Aestinum L.), mug (Phaseolus Radiatus Linn.) and matki. The grains are overlaid on an MRR in three different configurations, viz. complete, cross and partial, depending on their sizes. The change in the resonant frequency (f/sub r/) of the MRR is noted at different moisture levels in the grains. The moisture in the grains is varied from 0% to saturation (which for each grain is different). For experiments, a different MRR is used for each grain. The results are analyzed in view of the sizes and the type of overlay.
Keywords :
crops; microstrip resonators; microwave measurement; moisture measurement; MRR moisture sensor; chickpea grains; grain shape effects; grain size effects; matki grains; moisture level resonant frequency; mug grains; single-grain microstrip ring resonator; wheat grains; Computer science; Grain size; Microstrip resonators; Moisture; Optical ring resonators; Physics; Resonance; Resonant frequency; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219831
