About Quartz Crystal Resonator Noise: Recent Study
نویسندگان
چکیده
The first step, before investigating physical origins of noise in resonators, is to investigate correlations between external measurement parameters and the resonator noise. Tests and measurements are mainly performed on an advanced phase noise measurement system, recently set up. The resonator noise is examined as a function of the sensitivity to the drive level, the temperature operating point and the tuning capacitor.
منابع مشابه
Design and Fabrication of a Quartz Crystal Resonator Used in a Thickness-Monitor Unit (TECHNICAL NOTES).
This paper deals with the design and fabrication of a quartz-crystal resonator used in a thickness-monitor unit, measuring film thickness in a film-depositing system. A purpose-grown quartz crystal is cut to form the desired wafer. Two gold electrodes are deposited on both surfaces of the wafer to provide electrical contacts. The resonance frequency of the resonator, at room temperature, and th...
متن کاملQuartz Crystal Oscillators with Direct Resonator Heating
This paper describes a newly patented, low power, ovenized oscillator with the crystal heated directly by means of a thin film resistive heater deposited on its surface. Mounting the resonator inside an evacuated enclosure forms a miniature "thermos" bottle. The only significant path for heat loss is through the resonator mounting ribbons and posts and these, being long and thin, have quite hig...
متن کاملMethod for Measurement of the Sensitivity of Crystal Resonators to Repetitive Stimuli
This paper describes a simple method for the measurement of the effect of periodic stimuli on the frequency of crystal resonators. The technique has been implemented for the measurement of both acceleration and pressure sensitivity. The system is based around a passive method that has been previously used for residual phase noise measurement. In the case of acceleration sensitivity measurement,...
متن کاملEnergy Trapping Effect of Stepped Electrode in Miniature AT-Cut Quartz Resonator
As the size of quartz resonator continues to shrink, beveling of the plano-plano quartz crystal is needed to reduce mounting loss and to sustain energy trapping so to have low motional resistance for oscillation. The beveling process though is time consuming and difficult to control for small size and low frequency quartz crystals. In recent years, studies on stepped electrode (a.k.a bi-mesa el...
متن کاملFrequency Stability of 1×10 in a Compensated Sapphire Oscillator Operating above 77 K
We report on tests of a compensated sapphire oscillator (CSO) which shows frequency-stable operation at temperatures above 77 K[1]. The frequency stability for this oscillator shows an apparent flicker floor of 7.5×10 for measuring times between 3 and 10 seconds, and stability better than 2×10 for all measuring times between 1 and 100 seconds. These values are approximately the same as for the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009