- quartz crystal frequency oscillator
- Engineering: QCFO
Универсальный русско-английский словарь. Академик.ру. 2011.
quartz crystal frequency oscillator
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Quartz crystal microbalance — A quartz crystal microbalance (QCM) measures a mass per unit area by measuring the change in frequency of a quartz crystal resonator. The resonance is disturbed by the addition or removal of a small mass due to oxide growth/decay or film… … Wikipedia
Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
Crystal oven — An OCXO inside an HP digital counter A crystal oven is a temperature controlled chamber used to maintain the quartz crystal in electronic crystal oscillators at a constant temperature, in order to prevent changes in the frequency due to… … Wikipedia
Quartz clock — A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more… … Wikipedia
Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category … Wikipedia
crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… … Universalium
Frequency counter — A frequency counter is an electronic instrument, or component of one, that is used for measuring frequency. Since frequency is defined as the number of events of a particular sort occurring in a set period of time, measuring it is usually… … Wikipedia
crystal — /ˈkrɪstl / (say kristl) noun 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallised quartz. 3. Chemistry, Mineralogy a solid body having a characteristic internal structure and enclosed by symmetrically… …
Frequency drift — In electrical engineering, and particularly in telecommunications, frequency drift is an unintended and generally arbitrary offset of an oscillator from its nominal frequency. This can be caused by changes in temperature, which can alter the… … Wikipedia
crystal oscillator — noun an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal • Syn: ↑quartz oscillator • Hypernyms: ↑oscillator * * * Electronics. See under crystal (def. 10) … Useful english dictionary
quartz oscillator — noun an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal • Syn: ↑crystal oscillator • Hypernyms: ↑oscillator … Useful english dictionary
