AK-cut Crystal Resonators

Abstract

Calculations have predicted the existence of crystallographically doubly rotated quartz orientations with turnover temperatures which are considerably less sensitive to angular misorientation than comparable AT- or BT-cuts . We have arbitrarily designated these crystals as the AK-cut. We report experimental data for seven orientations, phi-angle variations between 30-46 degrees and theta-angle variations between 21-28 degrees, measured on 3.3-3.4 MHz fundamental mode resonators vibrating in the thickness shear c-mode, The experimental turnover temperatures of these resonators are between 80 degrees C and 150 degrees C, in general agreement with calculated values. The normalized frequency change as a function of temperature has been fitted with a cubic equation.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA497800

Entities

People

  • Alfred Khan
  • Ferdinand K. Euler

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Computations
  • Computer Programs
  • Computers
  • Frequency
  • Information Operations
  • Resonance
  • Resonators
  • Time Intervals

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Nanofabrication and Microfabrication.
  • Thermal Physics or Thermal Science.