The present invention offers useful ways of achieving high temperature stability of frequency determining components in temperature stabilized frequency control devices such as, for example, oven-controlled frequency reference devices.
The present invention offers novel ways of achieving high degree of mechanical stress isolation and high accuracy of temperature sensing in quartz crystal resonators.
A quartz crystal resonator comprises an orthogonally mounted doubly rotated QAS-type resonating element having a pair of bridges positioned at a defined angle in relation to the resonating element's ZI or XI axes. The resonator has reduced sensitivity to mechanical acceleration.
[Class : 9] Frequency Control Products; Frequency Reference Products; Timing Reference Products; Frequency Reference Modules; Frequency Control Components; Electronic Components; Resonators; Oscillators; Quartz Crystal Resonators And Components Thereof; Quartz Crystal Oscillators And Components Thereof; Temperature Compensated Crystal Oscillators; Voltage Controlled Crystal ...