quartz-crystal
31crystal — crys•tal [[t]ˈkrɪs tl[/t]] n. 1) cry a clear, transparent mineral or glass resembling ice 2) cry the transparent form of crystallized quartz 3) chem. a solid body having a characteristic internal structure and enclosed by symmetrically arranged… …
32quartz — [[t]kwɔ͟ː(r)ts[/t]] N UNCOUNT: oft N n Quartz is a mineral in the form of a hard, shiny crystal. It is used in making electronic equipment and very accurate watches and clocks. ...a quartz crystal …
33crystal 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) …
34quartz — n. a mineral form of silica that crystallizes as hexagonal prisms. Phrases and idioms: quartz clock a clock operated by vibrations of an electrically driven quartz crystal. quartz lamp a quartz tube containing mercury vapour and used as a light… …
35Crystal filter — A crystal filter is a special form of quartz crystal used in electronics systems, in particular communications devices. It provides a very precisely defined centre frequency and very steep bandpass characteristics, that is a very high Q factor… …
36quartz movement — Horol. an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch). * * * …
37quartz control — kvarcinis stabilizavimas statusas T sritis fizika atitikmenys: angl. quartz control; quartz crystal control vok. Quarzstabilisierung, f rus. кварцевая стабилизация, f pranc. stabilisation à quartz, f …
38quartz wedge — A thin wedge of quartz which provides a means of superposing any required thickness of quartz on a mineral section being viewed under a polarming microscope, the wedge being cut parallel to the optic axis of a prism of quartz crystal. It enables… …
39quartz movement — Horol. an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch) …
40quartz plate — Electronics. a carefully cut quartz crystal that is piezoelectrically active. Cf. crystal (def. 10). * * * …
