Title :
Dual-mode oscillators for clocks and sensors
Author_Institution :
US Army Commun.-Electron. Command, Ft. Monmouth, NJ, USA
Abstract :
Frequency can be measured with far higher accuracy than any other quantity. Dual mode excitation of resonators allows the highly accurate measurement of, and compensation for, the effects of temperature, pressure, etc., by means of frequency measurements alone. In dual mode excitation, the two excited modes occupy the same volume of quartz, thereby eliminating gradients between the resonator and sensor. This paper reviews the dual-mode technique and its applications in oscillators, clocks and sensors
Keywords :
clocks; crystal oscillators; electric sensing devices; quartz; clock; compensation; dual mode oscillator; frequency measurement; quartz resonator; sensor; Circuits; Clocks; Equations; Frequency measurement; Oscillators; Pressure measurement; Temperature control; Temperature sensors; Thermistors; Time measurement;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849128
