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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Works, C. N. Dakin, T. W. Boggs, F. W. |
| Copyright Year | 1931 |
| Abstract | A re-entrant cylindrical cavity has been adapted to measure the dielectric constant and power factor of small disk samples of insulating materials. The methods of measurement, mechanical details, and electric coupling and detecting circuits all are described. A single cavity can be utilized only over a frequency range of about 1.5 ratio from lowest to highest frequency. Therefore, several different-sized cavities would be required to cover a range of frequency from 50 to 1,000 megacycles. An accuracy of = 0.00005 in tan δ and = 1 per cent in dielectric constant may be obtained in routine measurements. Because the cavity has a very high Q(&>2,000), it is much more sensitive to low-power-factor dielectric samples than any conventional coil-and-capacitor resonant circuit. |
| Starting Page | 1092 |
| Ending Page | 1098 |
| Page Count | 7 |
| File Size | 2195416 |
| File Format | |
| ISSN | 00959197 |
| Volume Number | 63 |
| Issue Number | 12 |
| Language | English |
| Publisher | American Institute of Electrical Engineers |
| Publisher Date | 1944-12-01 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Cavity resonators Electrodes Resonant frequency Dielectrics Dielectric measurements Frequency measurement Capacitance |
| Content Type | Text |
| Resource Type | Article |
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