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Title: AUTOMATIC FREQUENCY CONTROL SYSTEM

A control is described for automatically matching the frequency of a resonant cavity to that of a driving oscillator. The driving oscillator is disconnected from the cavity and a secondary oscillator is actuated in which the cavity is the frequency determining element. A low frequency is mixed with the output of the driving oscillator and the resultant lower and upper sidebands are separately derived. The frequencies of the sidebands are compared with the secondary oscillator frequency. deriving a servo control signal to adjust a tuning element in the cavity and matching the cavity frequency to that of the driving oscillator. The driving oscillator may then be connected to the cavity.
Authors:
;
Publication Date:
OSTI Identifier:
4116343
Report Number(s):
US 2968007
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Research Org:
Originating Research Org. not identified
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; CONTROL SYSTEMS; FREQUENCY; OSCILLATORS; QUANTITATIVE ANALYSIS; SERVOMECHANISMS