DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
PRODUCTION ENGINEERING MEASURE. CR-(XM-45)/U QUARTZ CRYSTAL UNITS.
BLILEY ELECTRIC CO ERIE PA
Efforts were continued on the establishment of a PEM on the CR-XM-45U quartz crystal units. The crystal units are in the 90 kc to 200 kc fre quency range. They are similar to the GR-42AU units except that they must withstand much more severe vibration and they must hold much tighter frequency stability over the 70 C to 80 C operating temperature range. The various experimental designs which were derived and evaluated are reviewed. The strengths and the weaknesses are discussed of each of the experi mental designs and it is shown that the GR-XM-45U requirements are mutually prohibi tive. Author
Quarterly progress rept. no. 4, 1 Mar-31 May 63.