Tactical Miniature Crystal Oscillator.
Semiannual rept. 1 Oct 78-1 Apr 79,
BENDIX CORP BALTIMORE MD COMMUNICATIONS DIV
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This report describes the advanced development of a fast warmup Tactical Miniature Crystal Oscillator TMXO. The intended use of this TMXO is as a precision frequencytime reference in advanced communications, navigation and position location systems. The present effort is a continuation of work based on the demonstrated feasibility on previous contracts. The TMXO is an evacuated enclosure containing an evacuated inner electronics container. The electronics assembly consisting of two hybrid substances and the crystal resonator is suspended by its lead from the header of the evacuated inner container. The inner container is in turn supported by a system of Kovar wires which also provide electrical connections that feed through the header of the outer container. Both the inner and outer containers are hermetically sealed and the space between the containers is evacuated. Removal of the gas between the two containers eliminates heat transfer due to gas conduction and convection. This leaves only conduction through the Kovar wires and radiation as thermal coupling mechanisms between the inner container and the outer environment.
- Electrical and Electronic Equipment
- Non-Radio Communications