Stabilized-load crystal oscillator

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00335457" target="_blank" >RIV/68407700:21230/19:00335457 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/10467/87103" target="_blank" >http://hdl.handle.net/10467/87103</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Stabilized-load crystal oscillator
Original language description
The presence and concentration of some gases can be sensed by quartz crystal resonators covered by a thin layer of gas-absorbing material. The absorbed gas increases the inertial mass of the layer, and as a result the resonating frequency of the crystal is changed. However, a disadvantage of this method lies in the fact that the absorbed mass increases internal friction in the sensing layer, leading to increased damping, in other words dropping the Q-factor of the resonator. If the resonating frequency is to be measured by using the resonator as the frequency-determining device of an autonomous oscillator, accuracy problems appear due to the wide variations of the resonator Q-factor. The following article shows effective patented methods diminishing this problem.
Czech name
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Czech description
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Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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