Frequency, phase, and amplitude changes of the hydrogen maser oscillation

Author

Audoin, Claude ; Diener, William A.

Author_Institution

Unite Propre de Recherche du CNRS, Orsay, France

Volume

41

Issue

4

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

461

Lastpage

466

Abstract

The frequency, the phase, and the amplitude changes of the hydrogen maser oscillation, which are induced by the modulation of the cavity resonant frequency, are considered. The results obtained apply specifically to one of the H-maser cavity autotuning methods which is actually implemented, namely the cavity frequency-switching method. The frequency, the phase, and the amplitude changes are analyzed theoretically. The phase and the amplitude variations are measured experimentally. It is shown, in particular, that the phase of oscillation is subjected to abrupt jumps at the times of the cavity frequency switching, whose magnitude is specified. The results given can be used for the design of a phase-locked loop (PLL) aimed at minimizing the transfer of the phase modulation to the slaved VCXO

Keywords

cavity resonators; frequency measurement; hydrogen; masers; phase measurement; phase-locked loops; H; amplitude; autotuning; cavity resonant frequency; frequency; frequency-switching; jumps; maser oscillation; measurement; phase; phase-locked loop; variations; Amplitude modulation; Equations; Frequency modulation; Hydrogen; Magnetic moments; Masers; Phase modulation; Resonance; Resonant frequency; Stability;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.155908

Filename

155908