FREQUENCY TEMPERATURE COMPENSATION TECHNIQUES FOR QUARTZ CRYSTAL OSCILLATORS.

摘要

The document describes techniques of temperature compensation of quartz crystal oscillators. The mathematical and empirical analysis of four different methods is presented. In each method,to obtain compensation of the temperature coefficient, a change in the frequency of the crystal is produced that is equal and opposite in sense to the change caused by temperature. The means for producing a compensating frequency change is accomplished by changing the load reactance at the crystal terminals. Other studies concerned with compensation techniques such as methods of controlling voltage changes and data on the aging of experimental models are presented. (Author)