Accession Number : AD0164786

Title :   Crystal Plating Monitoring System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Lukaszek,Theodore J.

Report Date : 15 MAY 1973

Pagination or Media Count : 5

Abstract : The patent relates to crystals, and particularly to plating techniques for improving the quality of crystals. More particularly, this disclosure relates to the production of crystals having a minimum of unwanted, or inharmonic, modes of oscillation. This disclosure describes an apparatus and a method for taking a mode spectrograph to determine the impedance characteristic of a crystal in the frequency range of a desired harmonic while the crystal is in the process of being plated in a vacuum.

Descriptors :   *Plating, *Patents, *Crystal oscillators, *Quartz resonators, Fabrication, Quality control

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE