Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1981-05-27
1983-12-06
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310338, 310360, H01L 4108
Patent
active
044196008
ABSTRACT:
A stress compensated thickness-shear resonator is of an orientation (yxwl) .phi./.theta. selected from loci of stress compensated orientations provided for both the fast and slow thickness-shear modes of vibration. A stress compensated orientation is used in an oscillator for stable frequency-stress behavior. A stress compensated orientation having large-valued temperature coefficients of frequency is used in a temperature sensor for precision measurements. A stress and temperature compensated orientation is used in a pressure sensor such that the temperature compensated thickness-shear mode is used for pressure measurement while the stress compensated thickness-shear mode is used to compensate for effects of temperature.
REFERENCES:
patent: 2277245 (1942-03-01), Mason
patent: 2743144 (1956-04-01), Bottom et al.
patent: 3423609 (1969-01-01), Hammond
patent: 3561832 (1971-02-01), Karrer et al.
patent: 3577781 (1971-05-01), Lebourg et al.
patent: 3826931 (1974-07-01), Hammond
patent: 4079280 (1978-03-01), Kusters et al.
patent: 4160183 (1979-07-01), Kusters et al.
"Higher-Order Temperature Coefficients of the Elastic Stiffness and Compliances of Alpha-Quartz" by Bechmann et al., Proceedings of IRE, vol. 50, No. 8, Aug. 1962, pp. 1812-1822.
"Calculations of the Stress Compensated (SC-Cut) Quartz Resonator" by EerNisse, Proceedings on the 30th Annual Symposium on Frequency Control, Jun. 1976, pp. 8-11.
"Transient Thermal Compensation for Quartz Resonators," by Ballato, Proceedings of the 31st Annual Symposium on Frequency Control, 1977, pp. 8-16.
"Dual Mode Operation of Temperature and Stress Compensated Crystals" by Kusters et al., Proceedings of the 32nd Annual Symposium on Frequency Control, 1978, pp. 389-397.
"Design Aspects of an Oscillator Using the SC-Cut Crystal" by Burgoon et al., Proceedings of the 33rd Annual Symposium on Frequency Control, May 1979, pp. 411-416.
Budd Mark O.
Carroll David H.
Schlumberger Technology Corporation
LandOfFree
Stress-compensated quartz resonators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stress-compensated quartz resonators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stress-compensated quartz resonators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2031519