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Estimating the Permittivity of Solids from Measurements on Granular or Pulverized Materials

Published online by Cambridge University Press:  21 February 2011

Stuart O. Nelson
Stuart O. Nelson*
Affiliation:
U. S. Department of Agriculture, Agricultural Research Service, Richard B. Russell Agricultural Research Center, P.O. Box 5677, Athens, GA 30613
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Abstract

A procedure is outlined for determining the complex permittivity components of solid materials of known densities from those properties of granular or pulverized samples measured at a few different bulk densities. Properties of the solid are obtained by extrapolation of functions of the dielectric constant and loss factor that are linearly related to the bulk density of the air-particle mixture. Examples are given for whole-kernel wheat, ground white rice, and pulverized goethite.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 124: Symposium M – Microwave Processing of Materials I , 1988 , 149
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Dube, D. C., Parshad, R., J. Phys. D: Appl. Phys. 3, 677 (1970).Google Scholar
2. Dube, D. C., J. Phys. D: Appl. Phys. 3, 1648 (1970).Google Scholar
3. Yadav, A. S., Parshad, R., J. Phys. D: Appl. Phys., 4, 822 (1971).Google Scholar
4. Dube, D. C., Yadava, R. S., Parshad, R., Indian J. Pure & Appl. Phys. 9, 719 (1971).Google Scholar
5. Nelson, S. O., Trans. ASAE 15 1094 (1972).Google Scholar
6. Roberts, S. A., Von Hippel, A., J. Appl. Phys. 17, 610 (1946).Google Scholar
7. Nelson, S. O., Stetson, L. E., Schlaphoff, C. W., IEEE Trans. Instr. Meas. IM–23, 455 (1974).Google Scholar
8. Nelson, S. O., J. Microwave Power, 18, 143 (1983).Google Scholar
9. Kent, M., J. Microwave Power, 12, 341 (1977).Google Scholar
10. Philip, J. C., Z. Physik. Chemie 24, 18 (1897).CrossRefGoogle Scholar
11. Lowry, H. H., J. Franklin Inst. 203, 413 (1927).Google Scholar
12. Birchak, J. R., Gardner, C. G., Hipp, J. E., Victor, J. M., Proc. IEEE 62, 93 (1974).Google Scholar
13. Kraszewski, A., J. Microwave Power 12, 215 (1977).Google Scholar
14. Calderwood, J. H., Scaife, B. K. P., IEEE Conf. Publ. No. 177, 136 (1979).Google Scholar
15. Shutko, A. M., Reutov, E. M., IEEE Trans. Geosci. Remote Sensing. GE–20, 29 (1982).Google Scholar
16. Shen, L. C., Savre, W. C., Price, J. M., Athavale, K., Geophys. 50, 692 (1985).Google Scholar
17. Feng, S., Sen, P. N., J. Appl. Phys. 58, 3236 (1985).Google Scholar