Cavity Resonators for Dielectric Spectroscopy of Compressed Gases

Autor:	H. E. Bussey, George Birnbaum
Rok vydání:	1959
Předmět:	Materials science business.industry Oscillation Line (electrical engineering) Dielectric spectroscopy law.invention Resonator Optics law Cylinder Dielectric loss business Spark plug Instrumentation Electrical impedance
Zdroj:	Review of Scientific Instruments. 30:800-804
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1716758
Popis:	Convenient, tunable, sealed‐off cavity resonators are described at frequencies of 1, 2, 9, and 24 kMc, for use with internal pressures up to 1000 psi. The modes of oscillation employed were TE01n, TE11n, and TM01 hybrid, all in a circular cylinder. A convenient method for sealing an iris, applicable over a wide‐frequency range, is to insert a tapered Teflon plug. A Kovar‐glass seal for coaxial lines is described that provides a good impedance match in a 50‐ohm line. The measuring procedure is described. Accuracy of dielectric loss measurements was increased by calibrating the loss changes of the cavity arising from reresonating it upon admission of lossless gas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d7cc3304d9b019413e2256d470cdb46c https://doi.org/10.1063/1.1716758 Zobrazit plný text záznamu