An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice
In this paper, the theory behind the design of a microwave sensor for the accurate measurement of firn complex permittivity is presented. This class of microwave sensors, based on the open-coaxial re-entrant cavity method, is specifically designed to measure, by means of a simple and quick procedure...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/9/2099 |
| _version_ | 1798004899014770688 |
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| author | Roberto Olmi Saverio Priori Alberto Toccafondi Federico Puggelli |
| author_facet | Roberto Olmi Saverio Priori Alberto Toccafondi Federico Puggelli |
| author_sort | Roberto Olmi |
| collection | DOAJ |
| description | In this paper, the theory behind the design of a microwave sensor for the accurate measurement of firn complex permittivity is presented. This class of microwave sensors, based on the open-coaxial re-entrant cavity method, is specifically designed to measure, by means of a simple and quick procedure, the complex permittivity profile of low loss materials. A calibration procedure is introduced to derive the complex permittivity of the material under measurement (MUM). Two specimens of this class of microwave sensors have been realized to sample the complex permittivity profile of a 106-m long ice core drilled from the Antarctic plateau at Concordia Station. The preliminary results of the on site measurement campaign are reported, showing very good agreement with theoretical models available in the literature. |
| first_indexed | 2024-04-11T12:30:47Z |
| format | Article |
| id | doaj.art-fe74d3f5260345b1828c66e60961a572 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:30:47Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-fe74d3f5260345b1828c66e60961a5722022-12-22T04:23:46ZengMDPI AGSensors1424-82202019-05-01199209910.3390/s19092099s19092099An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic IceRoberto Olmi0Saverio Priori1Alberto Toccafondi2Federico Puggelli3IFAC-CNR, 50019 Sesto Fiorentino, ItalyIFAC-CNR, 50019 Sesto Fiorentino, ItalyDIISM-UNISI, 53100 Siena, ItalyDIISM-UNISI, 53100 Siena, ItalyIn this paper, the theory behind the design of a microwave sensor for the accurate measurement of firn complex permittivity is presented. This class of microwave sensors, based on the open-coaxial re-entrant cavity method, is specifically designed to measure, by means of a simple and quick procedure, the complex permittivity profile of low loss materials. A calibration procedure is introduced to derive the complex permittivity of the material under measurement (MUM). Two specimens of this class of microwave sensors have been realized to sample the complex permittivity profile of a 106-m long ice core drilled from the Antarctic plateau at Concordia Station. The preliminary results of the on site measurement campaign are reported, showing very good agreement with theoretical models available in the literature.https://www.mdpi.com/1424-8220/19/9/2099complex permittivity measurementdielectric spectroscopydielectric measurementAntarctic firn |
| spellingShingle | Roberto Olmi Saverio Priori Alberto Toccafondi Federico Puggelli An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice Sensors complex permittivity measurement dielectric spectroscopy dielectric measurement Antarctic firn |
| title | An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice |
| title_full | An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice |
| title_fullStr | An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice |
| title_full_unstemmed | An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice |
| title_short | An Open-Resonator Sensor for Measuring the Dielectric Properties of Antarctic Ice |
| title_sort | open resonator sensor for measuring the dielectric properties of antarctic ice |
| topic | complex permittivity measurement dielectric spectroscopy dielectric measurement Antarctic firn |
| url | https://www.mdpi.com/1424-8220/19/9/2099 |
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