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- Balance_wheel abstract "A balance wheel is the timekeeping device used in mechanical watches and some clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring, the balance spring or hairspring. It is driven by the escapement, which transforms the rotating motion of the watch gear train into impulses delivered to the balance wheel. Each swing of the wheel (called a 'tick' or 'beat') allows the gear train to advance a set amount, moving the hands forward. The balance wheel and hairspring together form a harmonic oscillator, which due to resonance oscillates preferentially at a certain rate, its resonant frequency or 'beat', and resists oscillating at other rates. The combination of the mass of the balance wheel and the elasticity of the spring keep the time between each oscillation or ‘tick’ very constant, accounting for its near universal use as the timekeeper in mechanical watches to the present. From its invention in the 14th century until quartz movements became available in the 1970s, virtually every portable timekeeping device used some form of balance wheel.".
- Balance_wheel thumbnail Alarm_Clock_Balance_Wheel.jpg?width=300.
- Balance_wheel wikiPageExternalLink search.
- Balance_wheel wikiPageExternalLink ?id=9wUFAAAAQAAJ.
- Balance_wheel wikiPageExternalLink ?id=UO3j49UJ17wC&pg=RA1-PA109.
- Balance_wheel wikiPageExternalLink books?id=o8Nb5KLBxVQC&pg=PA106&ots=8eA4W86mAP&dq=balance+wheel&sig=HHahEKuxnZKFyh94vlzLJRoqaI0.
- Balance_wheel wikiPageExternalLink historyo.html.
- Balance_wheel wikiPageExternalLink article-9360740.
- Balance_wheel wikiPageExternalLink anchor.html.
- Balance_wheel wikiPageExternalLink watchcabinet.html.
- Balance_wheel wikiPageExternalLink glossary%20-%20balance%20assembly.shtml.
- Balance_wheel wikiPageID "1504893".
- Balance_wheel wikiPageRevisionID "606802983".
- Balance_wheel hasPhotoCollection Balance_wheel.
- Balance_wheel subject Category:Timekeeping_components.
- Balance_wheel comment "A balance wheel is the timekeeping device used in mechanical watches and some clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring, the balance spring or hairspring. It is driven by the escapement, which transforms the rotating motion of the watch gear train into impulses delivered to the balance wheel.".
- Balance_wheel label "Balance wheel".
- Balance_wheel label "Balancier (horlogerie)".
- Balance_wheel label "Balans".
- Balance_wheel label "Onrust (uurwerk)".
- Balance_wheel label "Unruh (Uhr)".
- Balance_wheel label "Volante regulador".
- Balance_wheel label "عجلة اتزان".
- Balance_wheel sameAs Setrvačka.
- Balance_wheel sameAs Unruh_(Uhr).
- Balance_wheel sameAs Volante_regulador.
- Balance_wheel sameAs Balancier_(horlogerie).
- Balance_wheel sameAs Onrust_(uurwerk).
- Balance_wheel sameAs Balans.
- Balance_wheel sameAs m.056jh0.
- Balance_wheel sameAs Q1928854.
- Balance_wheel sameAs Q1928854.
- Balance_wheel wasDerivedFrom Balance_wheel?oldid=606802983.
- Balance_wheel depiction Alarm_Clock_Balance_Wheel.jpg.
- Balance_wheel isPrimaryTopicOf Balance_wheel.
