Journal ArticleDOI
Heating and thermostatic analysis of an oven-controlled quartz crystal oscillator
Zi-Gui Huang,Jhe-Wei Li +1 more
TLDR
In this paper, finite element analysis was used to simulate heating of an oven-controlled crystal oscillator (OCXO) element, and the results were compared by simulation of the behavior of the quartz oscillator in a nitrogen and helium environment and also under vacuum.Abstract:
An oven-controlled crystal oscillator (OCXO) uses thermostatic regulation to stabilize the output frequency by maintaining the temperature of the quartz crystal oscillator at a fixed level. The OCXO is heated by a chip which holds the temperature of the device at a working level of between 80 and 105 °C to stabilize the output frequency. In this study, finite element analysis was used to simulate heating of the OCXO element. The heating temperature vs. time change, when heat is transferred to the quartz crystal, and the quartz crystal thermostatic time variation vs. the quartz temperature distribution, were both investigated. The results were compared by simulation of the behavior of the quartz oscillator in a nitrogen and helium environment and also under vacuum.read more
Citations
More filters
Journal ArticleDOI
Analysis of Deep Drawing Process for Stainless Steel Micro-Channel Array
TL;DR: An investigation of the deep drawing process for stainless steel micro-channel arrays is reported in this work, and the punch load estimated by the unmodified metal forming equation is higher than that of experiments.
Proceedings ArticleDOI
The temperature characteristics research and improving methods of crystal oscillator
Dong Shi,Ping Li,Jian Ping Li +2 more
TL;DR: Some aspects of the reasons that affect the frequency stability of the OCXO's temperature properties are talked about, its principle according to the experimental data is analyzed, some conclusions are got, and some methods to improve the temperature stability are put forward.
References
More filters
Journal ArticleDOI
Environmental sensitivities of quartz oscillators
Fred L. Walls,J.-J. Gagnepain +1 more
TL;DR: The physical basis for the sensitivity of precision oscillators to temperature, humidity, pressure, acceleration and vibration, magnetic field, electric field, load, and radiation is examined.
Proceedings ArticleDOI
The influence of pressure and humidity on the medium and long-term frequency stability of quartz oscillators
TL;DR: In this paper, the medium-term frequency stability of four different 5-MHz oscillators controlled by two different types of AT-cut resonators is shown to be sensitive to changes in atmospheric moisture and possibly pressure.
Journal ArticleDOI
An ultra-compact and low-power oven- controlled crystal oscillator design for precision timing applications
TL;DR: The OCXO package size can be reduced significantly with this design, because the resonator does not require a separate package and most of the circuitry is integrated on a single CMOS chip, and other characteristics such as power consumption and warm-up time are improved.
Journal ArticleDOI
Advances in development of quartz crystal oscillators at liquid helium temperatures
TL;DR: In this article, the authors present some recent results in the field of liquid helium bulk acoustic wave oscillators and discuss the associated problems and limitations, and explain the unique features of obtained phase noise power spectral densities.
Proceedings ArticleDOI
High-stability quartz oscillators on internally-heated quartz resonators with AT and SC cuts
Y.L. Vorokhovsky,B.G. Drakhlis +1 more
TL;DR: A number of industrial types of quartz oscillators on internally heated quartz resonators with AT and SC-cut piezoelements have been developed as mentioned in this paper, which combine, functionally and technologically, a quartz resonator and an oven in one construction.