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Saint Petersburg, Russia

Nikonov A.G.,Morion Inc. | Ivanov Y.A.,Morion Inc.
EFTF 2012 - 2012 European Frequency and Time Forum, Proceedings | Year: 2012

Long-term stability (aging) is one of the key parameters of quartz crystal oscillator. Approximation and time series prediction methods are used to evaluate it. An improved mathematical model which allows to evaluate quartz crystal oscillators from the point of longterm stability (aging) has been developed. Evaluation of the stabilization of aging process is used as the basis for the model's algorithm. Basing on such model a software system has been developed. In process of it's development different approximation functions were considered, including procedure of selection of suitable functions as well as their applicability, forecast accuracy and reliability. Also accuracy of forecast vs. duration of aging testing was studied. In this way the developed software system allowed to reach forecast of 5xE-9 accuracy for long-term stability per year. Also, what is practically important, the developed mathematical model allows to minimize possible human errors in evaluation of subject long-term stability of precision oscillators. © 2012 IEEE.

Nikonov A.G.,Morion Inc. | Kotyukov A.V.,Morion Inc. | Kamochkin A.S.,Morion Inc. | Dyakonova N.I.,Morion Inc.
EFTF 2012 - 2012 European Frequency and Time Forum, Proceedings | Year: 2012

The article gives a description of single oven-controlled quartz oscillators (OCXO), which frequency stability comparable with double oven-controlled quartz oscillators (DOCXO), and are considerably lower in weight, consume less power, and are smaller in sizes (up to a height thereof to 10 mm). © 2012 IEEE.

Vorokhovsky Y.,Morion Inc. | Lyaskovsky V.,Morion Inc. | Kolpakov Y.,Morion Inc. | Nikonov A.,Morion Inc. | Kotyukov A.,Morion Inc.
2014 European Frequency and Time Forum, EFTF 2014 | Year: 2014

In recent years low noisy precision 100 MHz oscillators for continuous operation up to 15 years became more and more important for modern telecommunication and measurement equipment. Often it is important to minimize both close-in phase noise (at 10, 100 and 1000 Hz from carrier) and noise floor (at 10, 100 and 1000 kHz from carrier). Requirements became tougher not only for phase noises and various kinds of frequency stabilities, but also for OCXOs' reliability. To meet modern requirements for 100 MHz precision quartz oscillators, it is necessary to undertake actions targeted for improvement of reliability, optimization of both design and electronics of oscillator and considerable improvement of performance of quartz crystal. Successful advancement in these directions was made by authors in Morion Inc. during Y 2013. © 2014 IEEE.

Vorokhovsky Y.,Morion Inc. | Nikonov A.,Morion Inc. | Kotyukov A.,Morion Inc. | Kamochkin A.,Morion Inc.
Microwave Journal | Year: 2015

A new precision 10 MHz oven controlled crystal oscillator (OCXO) exhibits low phase noise close to the carrier (-120 dBc/Hz at 1 Hz) and a low noise floor (-160 dBc/Hz at 1 kHz) with very good frequency versus temperature stability.

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