Field representation microwave thermography utilizing lossy microwave design materials
- In this contribution, we are investigating a technique for the representation of electromagnetic fields by recording their thermal footprints on an indicator material using a thermal camera. Fundamentals regarding the interaction of electromagnetic heating, thermodynamics, and fluid dynamics are derived which allow for a precise design of the field illustration method. The synthesis and description of high-loss dielectric materials is discussed and a technique for a simple estimation of the broadband material’s imaginary permittivity part is introduced. Finally, exemplifying investigations, comparing simulations and measurements on the fundamental TE10-mode in an X-band waveguide are presented, which prove the above introduced sensing theory.
| Author: | Christoph BaerORCiDGND, Kerstin OrendORCiDGND, Birk HattenhorstORCiDGND, Thomas MuschGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-84675 |
| DOI: | https://doi.org/10.3390/s21144830 |
| Parent Title (English): | Sensors |
| Publisher: | MDPI |
| Place of publication: | Basel |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2021/12/10 |
| Date of first Publication: | 2021/07/15 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | field illustration; microwave; permittivity; thermography |
| Volume: | 21 |
| Issue: | 14, Article 4830 |
| First Page: | 4830-1 |
| Last Page: | 4830-18 |
| Institutes/Facilities: | Lehrstuhl für elektronische Schaltungstechnik |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Elektrotechnik und Informationstechnik |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
