| Presentation | 2010-10-22 Calibration Technique for Dielectric Permittivity Measurement in Scattered-Waves Method Takashi KOMAKINE, Takahiro KUROSAWA, Hiroshi INOUE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To estimate the dielectric permittivity in high frequency, a method measuring the field strength of scattered waves re-radiated from the dielectric sample placed in a applied well-known field was proposed. This method can easily estimate the dielectric permittivity without contact in small sample size compared to the wavelength. The permittivity of the pure water which radiates the relatively larger scattered waves is estimated in order to certify the measurement principle. The sample is enclosed by spherical rubber in diameter of 80 mm and the scattered field is discriminated from applied field by absorbers arranged between transmitting and receiving antennas. For the samples which have the relatively small dielectric permittivity, the scheme which modulates the strength of scattered waves by mechanical vibrations to discriminate the scattered field superposed with the applied electric field and the coherent approach in receiving process, is introduced. In this case, the calibration technique using the calibrator whose volume, shape and dielectric permittivity are well-known is available practically. At the field frequency, 1 GHz, the dielectric permittivity of spherical Teflon of 20-mm diameter can be estimated with the error of 2 percents when the measuring system is calibrated by the Alumina calibrator of the same diameter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | permittivity / dielectric constant / scatterer / modulated scattering / dielectric, calibration |
| Paper # | EMCJ2010-64,MW2010-99 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2010/10/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Calibration Technique for Dielectric Permittivity Measurement in Scattered-Waves Method |
| Sub Title (in English) | |
| Keyword(1) | permittivity |
| Keyword(2) | dielectric constant |
| Keyword(3) | scatterer |
| Keyword(4) | modulated scattering |
| Keyword(5) | dielectric, calibration |
| 1st Author's Name | Takashi KOMAKINE |
| 1st Author's Affiliation | Akita Prefectural R&D Center() |
| 2nd Author's Name | Takahiro KUROSAWA |
| 2nd Author's Affiliation | Akita Prefectural R&D Center |
| 3rd Author's Name | Hiroshi INOUE |
| 3rd Author's Affiliation | Faculty of Engineering and Resource Science, Akita University |
| Date | 2010-10-22 |
| Paper # | EMCJ2010-64,MW2010-99 |
| Volume (vol) | vol.110 |
| Number (no) | 236 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |