DocumentCode
930469
Title
Underearth Quartz Crystal Resonators
Author
Pendleton, Thomas A.
Author_Institution
National Bureau of Standards, Washington, D.C.
Volume
41
Issue
11
fYear
1953
Firstpage
1612
Lastpage
1614
Abstract
Advantages of using precision quartz resonators in conjunction with frequency standard oscillators are explained. Advantages of locating the precision-resonators underearth are also described. A method of measuring resonator drift rate with sensitivity of the order of 2 parts in 1010 by means of a direct voltage instead of a high-stability variable oscillator is explained.
Keywords
Clocks; Earth; Electric shock; Frequency measurement; Oscillators; Resonant frequency; Soil; Stability; Temperature; Time measurement;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1953.274187
Filename
4051238
Link To Document