Accession Number:

AD0749642

Title:

Precision Single Sideband Crystal Units.

Descriptive Note:

Semiannual rept. 15 Dec 71-15 Jun 72,

Corporate Author:

GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Personal Author(s):

Report Date:

1972-08-01

Pagination or Media Count:

48.0

Abstract:

The purpose of this work is to develop single sideband SSB quartz crystal units which meet a strict aging requirement, i.e., 2 X 10 to the minus 10th powerweek, when measure at the upper turning point 66C of the crystal unit after a stabilization period of four weeks. These resonators are to be used in temperature compensated crystal oscillators TCXO, where the operating temperature will be variable from about -55 to 90C. The use of a TCXO for on-frequency operation rather than an ovencontrolled crystal oscillator OCXO eliminates the need for a fast warm-up oven. However, the problem of frequency hysteresis that may occur under conditions of varying temperature still exists. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Manufacturing and Industrial Engineering and Control of Production Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE