Accession Number : AD0476237


Title :   DEVELOPMENT AND FABRICATION OF MECHANICALLY COMPENSATED CRYSTAL UNITS.


Descriptive Note : Quarterly rept. no. 1, 1 Jul-30 Sep 65,


Corporate Author : KENTON ENGINEERING CORP SKOKIE IL


Personal Author(s) : Roberts, Edward A


Report Date : Jan 1966


Pagination or Media Count : 50


Abstract : Research conducted on temperature compensation techniques for quartz frequency control crystals is reported. Mechanically actuated variable reactive elements are under study for use with such crystals to offset frequency shifts normally encountered as a result of temperature change. Preliminary compensating devices under development for use with 3 and 5 mc/s series resonant AT cut crystal units have been shown to be capable of producing substantial improvement in frequency stability over wide temperature ranges. Project requirements to be met include plus or minus 1 ppm stability over the -55 to +90 C temperature range; design efforts continue toward this and other electrical performance and environmental goals. (Author)


Descriptors :   *QUARTZ , TEMPERATURE CONTROL , QUARTZ RESONATORS , FREQUENCY SHIFT , STABILITY , TEMPERATURE , CAPACITANCE , MANUFACTURING


Subject Categories : Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE