Experimental evidence for mode shape influence on acceleration-induced frequency shifts in quartz resonators

Experimental results are presented to support the hypothesis that the shape and location of the active region of vibration in a thickness shear mode quartz resonator are the dominant factors in determining the acceleration sensitivity of the resonator. The shape and location of the mode in a real wo...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 1990-11, Vol.37 (6), p.566-570
Main Authors: EerNisse, E.P., Ward, R.W., Watts, M.H., Wiggins, R.B., Wood, O.L.
Format: Article
Language:English
Subjects:
Acceleration
Applied sciences
Circuit properties
Communication standards
Computer aided manufacturing
Degradation
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Finite element methods
Frequency
Navigation
Oscillators
Oscillators, resonators, synthetizers
Scattering parameters
Shape
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Summary:Experimental results are presented to support the hypothesis that the shape and location of the active region of vibration in a thickness shear mode quartz resonator are the dominant factors in determining the acceleration sensitivity of the resonator. The shape and location of the mode in a real world resonator vary sufficiently from unit to unit (due to material and processing variations) that all other considerations are overwhelmed. It is shown experimentally that the mode shape and/or location can be trimmed with energy trapping by judicious addition or subtraction of mass to produce resonators with improved acceleration sensitivity.< >
ISSN:0885-3010
1525-8955
DOI:10.1109/58.63114