Investigations of antenna probe length, antenna-dielectric distance, cavity filling and humidity on microwave resonator thermometer with respect to Q, spurious mode depression, coupling strength, accuracy, shock resistance or sensitivity were carried out in order to improve the dielectric resonator thermometer performance. Significant improvement of Q and depression of spurious mode coupling were obtained when the antenna length was reduced. It also turns out that the Q and spurious mode coupling strength vary with the distance between dielectric and antenna pin, as well under appropriate antenna length. Filling the cavity with nitrogen increases coupling strength but decrease frequency-temperature sensitivity compared to a vacuum-pumped cavity. Besides, preliminary results on the microwave resonator sensitivity to air humidity were obtained.
Investigations on perturbations of microwave dielectric resonator thermometer / Yu, L.; Zhang, G.; Fernicola, V.; Lu, J.. - In: MEASUREMENT SCIENCE & TECHNOLOGY. - ISSN 0957-0233. - 28:047001(2017). [10.1088/1361-6501/aa5d8b]
Investigations on perturbations of microwave dielectric resonator thermometer
FERNICOLA V.;
2017
Abstract
Investigations of antenna probe length, antenna-dielectric distance, cavity filling and humidity on microwave resonator thermometer with respect to Q, spurious mode depression, coupling strength, accuracy, shock resistance or sensitivity were carried out in order to improve the dielectric resonator thermometer performance. Significant improvement of Q and depression of spurious mode coupling were obtained when the antenna length was reduced. It also turns out that the Q and spurious mode coupling strength vary with the distance between dielectric and antenna pin, as well under appropriate antenna length. Filling the cavity with nitrogen increases coupling strength but decrease frequency-temperature sensitivity compared to a vacuum-pumped cavity. Besides, preliminary results on the microwave resonator sensitivity to air humidity were obtained.File | Dimensione | Formato | |
---|---|---|---|
Yu_2017_Meas._Sci._Technol._28_047001.pdf
solo utenti autorizzati
Tipologia:
final published article (publisher’s version)
Licenza:
Non Pubblico - Accesso privato/ristretto
Dimensione
2.22 MB
Formato
Adobe PDF
|
2.22 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Investigations on perturbations of the microwave-second modification final.pdf
accesso aperto
Tipologia:
submitted version (author’s pre-print)
Licenza:
Pubblico - Tutti i diritti riservati
Dimensione
436 kB
Formato
Adobe PDF
|
436 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.