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Industrial Microwave Sensors—A Review

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Abstract

This paper reviews the field of microwave sensors. The field is broad and the applications numerous. This review will therefore only be able to present the broad outlines. Firstly the historical perspective and the physical background are briefly described, and the general advantages and disadvantages are listed. An overview of the various working principles of microwave sensors is given with a few examples of the applications mentioned. Important fields of applications and interesting examples are treated separately, starting with the measurement of moisture, which is the single most important field of applications in microwave sensors. Applications in the petroleum industry are also mentioned, because they are relatively new, they play an exceptionally important economical role, and represent the field in which the author is currently working. Followed by some trends for the future.

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References

  1. Nyfors, E., and Vainikainen, P.-V., 1989, Industrial microwave sensors: Artech House, Norwood, MA, 351p.

    Google Scholar 

  2. The American Heritage Dictionary, 1985: Houghton Mifflin Comp., Boston, MA., 1568p.

  3. von Hippel, A. R., 1954, Dielectric materials and applications: MIT Press, Cambridge, MA, 438p.

    Google Scholar 

  4. Klein, A., 1981, Microwave determination of moisture in coal: Comparison of attenuation and phase measurement: Jour. Microwave Power, v. 16, no. 3–4, p. 289–304.

    Google Scholar 

  5. Jakkula, P., 1998, Microwave sensors for consistency measurements in the pulp and paper industry: Thesis for the degree of Doctor of Technology: Helsinki University of Technology, Radio Laboratory, Report S 231, 78p.

  6. Stuchly, M. A., and Stuchly, S. S., 1980, Coaxial line re¯ection methods for measuring dielectric properties of biological substances at radio and microwave frequencies—A review: IEEE Trans. Instr. Meas., v. IM-29, no. 3, p. 176–183.

    Google Scholar 

  7. King, R. J., et al., 1996, Material characterization using microwave open reflection resonator sensors, in Kraszewski, A., ed., Microwave Aquametry: Electromagnetic wave interaction with water-containing materials: IEEE Press, p. 153–175.

  8. Basics of Measuring the dielectric properties of materials: Hewlett-Packard Application Note 1217–1, 1992.

  9. Heikkilä, S., Jakkula, P., and Tiuri, M., 1982, Microwave methods for strength grading of timber and for automatic edging of boards: Proc. 12th European Microwave Conference, Helsinki, p. 599–603.

  10. Konev, V., and Mikhnev, V., 1986, Inspection of parameters of sheet dielectrics by analysis of the frequency properties of a dielectric waveguide sensor: Sov. Jour. Nondestr. Test. (US), v. 22, no. 6, June, p. 367–372.

    Google Scholar 

  11. Ou, W., Gardner, C. G., and Long, S. A., 1983, Nondestructive measurement of a dielectric layer using surface electromagnetic waves: IEEE Trans. Microwave Theory Tech., v. MTT-31, no. 3, March, p. 255–261.

    Google Scholar 

  12. Vainikainen, P.-V., Nyfors, E., and Fischer, M., 1987, Radiowave sensor for measuring the properties of sheetlike dielectric material; Application to veneer moisture content and mass per unit area measurement: IEEE Trans. On Instrumentation and Measurement, v. IM-36, no. 4, December, p. 1036–1039.

    Google Scholar 

  13. Kraszewski, A., 1980, Microwave aquametry—a review: Jour. Microwave Power, v. 15, no. 4, p. 209–220.

    Google Scholar 

  14. Kraszewski, A., 1980, Microwave aquametry—a bibliography: Jour. Microwave Power, v. 15, no. 4, p. 298–310.

    Google Scholar 

  15. Kraszewski, A., 1996, Fifteen years of literature in microwave aquametry, in Kraszewski, A., ed., Microwave aquametry: Electromagnetic wave interaction with water-containing materials: IEEE Press, p. 425–464.

  16. Kraszewski, A., ed., 1996, Microwave aquametry: Electromagnetic wave interaction with water-containing materials: IEEE Press, p. 484.

  17. Proceedings Third Workshop on Electromagnetic Wave Interaction with Water and Moist Substances, 1999, Athens, Georgia, April 11–13.

  18. Lawrence, K. C., Funk, D. B., and Windham, W. R., 1999, Swept-frequency grain moisture sensor: Proceedings Third Workshop on Electromagnetic Wave Interaction with Water and Moist Substances, Athens, Georgia, April 11–13, p. 128–132.

  19. Kraszewski, A., and Nelson, S. O., 1996, Moisture content determination in single kernels and seeds with microwave resonant sensors, in Kraszewski, A., ed., Microwave Aquametry: Electromagnetic wave interaction with water-containing materials: IEEE Press, p. 177–203.

  20. Stacheder, M., et al., 1999, Grain moisture measurements with time domain reflectometry: Proceedings Third Workshop on Electromagnetic Wave Interaction with Water and Moist Substances, Athens, Georgia, April 11–13, p. 133–137.

  21. Hillhorst, M. A., 1998, Dielectric characterisation of soil: Doctoral Thesis: Wageningen Agricultural University, The Netherlands, 141p.

    Google Scholar 

  22. Fischer, M., Vainikainen, P.-V., Nyfors, E., and Kara, M., 1988, Fast moisture profile mapping of a wet paper web with a dual-mode resonator array: Proceedings 18th European Microwave Conference, Stockholm, September, p. 607–612.

  23. Nyfors, E. G., Vainikainen, P.-V., and Fischer, M., 1988, Method and apparatus for the measurement of properties of sheet-or foil-like materials of low electrical conductivity, United States Patent, Patent no. 4,739,249, April 19.

  24. Vainikainen, P.-V., Agarwal, R., Nyfors, E., and Toropainen, A., 1986, Electromagnetic humidity sensor for industrial applications: Elect. Lett., v. 22, no. 19, September, p. 985–987.

    Google Scholar 

  25. Leroy, Y., Bocquet, B., and Mamouni, A., 1998, Non-invasive microwave radiometry thermometry, a topical review: Physiol. Meas., v. 19, p. 127–148.

    Google Scholar 

  26. Leroy, Y., et al., 1986, Contactless thermometry of a textile web by microwave radiometry, Proceedings 16th European Microwave Conference, Dublin, September, p. 377–381.

  27. Bocquet, B., et al., 1994, Non destructive thermometry by means of microwave radiometry: Microwave Processing of Materials IV: Materials Research Soc., San Francisco, April, p. 143–154.

    Google Scholar 

  28. Vainikainen, P.-V., et al., 1992, Portable short range subsurface radar: Proceedings 4th International Conference on Ground Penetrating Radar, Rovaniemi, Finland, June, p. 29–33.

  29. Proceedings 4th International Conference on Ground Penetrating Radar, 1992, Rovaniemi, Finland, June.

  30. Wenger, J., Leistner, D., and Knùll, H., 1996, A microwave sensor for blade tip clearance measurements: Proceedings Workshop on New Microwave Sensors and Industrial Applications held at the 26th European Microwave Conference, Prague, 13 September, p. 78–83.

  31. Proceedings Workshop on Advanced Car Electronics and Future Traffic Control Systems Related to Microwaves, 1991, held at the 21st European Microwave Conference, Stuttgart, 13 September.

  32. Proceedings Workshop on New Microwave Sensors and Industrial Applications, 1996, held at the 26th European Microwave Conference, Prague, 13 September.

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Authors and Affiliations

  1. Roxar ASA, Stavanger, Norway

    Ebbe Nyfors

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  1. Ebbe Nyfors
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Nyfors, E. Industrial Microwave Sensors—A Review. Subsurface Sensing Technologies and Applications 1, 23–43 (2000). https://doi.org/10.1023/A:1010118609079

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