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- Balance_spring abstract "A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces. It causes the balance wheel to oscillate with a resonant frequency when the timepiece is running, which controls the speed at which the wheels of the timepiece turn, and thus the rate of movement of the hands. A regulator lever is often fitted, which can be used to alter the free length of the spring and thereby adjust the rate of the timepiece.The balance spring is a fine spiral or helical torsion spring used in mechanical watches, alarm clocks, kitchen timers, marine chronometers, and other timekeeping mechanisms to control the rate of oscillation of the balance wheel. The balance spring is an essential adjunct to the balance wheel, causing it to oscillate back and forth. The balance spring and balance wheel together form a harmonic oscillator, which oscillates with a precise period or \"beat\" resisting external disturbances, and is responsible for timekeeping accuracy.The addition of the balance spring to the balance wheel around 1657 by Robert Hooke and Christiaan Huygens greatly increased the accuracy of portable timepieces, transforming early pocketwatches from expensive novelties to useful timekeepers. Improvements to the balance spring are responsible for further large increases in accuracy since that time. Modern balance springs are made of special low temperature coefficient alloys like nivarox to reduce the effects of temperature changes on the rate, and carefully shaped to minimize the effect of changes in drive force as the mainspring runs down. Before the 1980s, balance wheels and balance springs were used in virtually every portable timekeeping device, but in recent decades electronic quartz timekeeping technology has replaced mechanical clockwork, and the major remaining use of balance springs is in mechanical watches.".
- Balance_spring thumbnail Balance_spring_types.png?width=300.
- Balance_spring wikiPageID "2739214".
- Balance_spring wikiPageLength "15372".
- Balance_spring wikiPageOutDegree "66".
- Balance_spring wikiPageRevisionID "704287034".
- Balance_spring wikiPageWikiLink Alarm_clock.
- Balance_spring wikiPageWikiLink Balance_wheel.
- Balance_spring wikiPageWikiLink Big_Ben.
- Balance_spring wikiPageWikiLink Bimetallic_strip.
- Balance_spring wikiPageWikiLink Category:Dutch_inventions.
- Balance_spring wikiPageWikiLink Category:English_inventions.
- Balance_spring wikiPageWikiLink Category:Springs_(mechanical).
- Balance_spring wikiPageWikiLink Category:Timekeeping_components.
- Balance_spring wikiPageWikiLink Center_of_mass.
- Balance_spring wikiPageWikiLink Charles_Édouard_Guillaume.
- Balance_spring wikiPageWikiLink Christiaan_Huygens.
- Balance_spring wikiPageWikiLink Clock.
- Balance_spring wikiPageWikiLink Couple_(mechanics).
- Balance_spring wikiPageWikiLink Edward_John_Dent.
- Balance_spring wikiPageWikiLink Elastic_modulus.
- Balance_spring wikiPageWikiLink Elinvar.
- Balance_spring wikiPageWikiLink Frequency.
- Balance_spring wikiPageWikiLink Harmonic_oscillator.
- Balance_spring wikiPageWikiLink Helix.
- Balance_spring wikiPageWikiLink Hookes_law.
- Balance_spring wikiPageWikiLink John_Arnold_(watchmaker).
- Balance_spring wikiPageWikiLink John_Harrison.
- Balance_spring wikiPageWikiLink Julien_Le_Roy.
- Balance_spring wikiPageWikiLink Longitude_Act.
- Balance_spring wikiPageWikiLink Mainspring.
- Balance_spring wikiPageWikiLink Marine_chronometer.
- Balance_spring wikiPageWikiLink Mechanical_watch.
- Balance_spring wikiPageWikiLink Moment_of_inertia.
- Balance_spring wikiPageWikiLink Nivarox.
- Balance_spring wikiPageWikiLink Oscillation.
- Balance_spring wikiPageWikiLink Pierre_Le_Roy.
- Balance_spring wikiPageWikiLink Pocket_watch.
- Balance_spring wikiPageWikiLink Quartz_clock.
- Balance_spring wikiPageWikiLink Resonance.
- Balance_spring wikiPageWikiLink Robert_Hooke.
- Balance_spring wikiPageWikiLink Simple_harmonic_motion.
- Balance_spring wikiPageWikiLink Spiral.
- Balance_spring wikiPageWikiLink Temperature_coefficient.
- Balance_spring wikiPageWikiLink Thomas_Earnshaw.
- Balance_spring wikiPageWikiLink Thomas_Tompion.
- Balance_spring wikiPageWikiLink Timer.
- Balance_spring wikiPageWikiLink Torsion_spring.
- Balance_spring wikiPageWikiLink Verge_escapement.
- Balance_spring wikiPageWikiLink Watch.
- Balance_spring wikiPageWikiLink Worm_drive.
- Balance_spring wikiPageWikiLink File:Balance_spring_types.png.
- Balance_spring wikiPageWikiLink File:Fotothek_df_tg_0003783_Uhr_%5E_Uhrwerk.jpg.
- Balance_spring wikiPageWikiLinkText "Balance spring".
- Balance_spring wikiPageWikiLinkText "Balance spring#Isochronism".
- Balance_spring wikiPageWikiLinkText "Spiral-hairspring".
- Balance_spring wikiPageWikiLinkText "balance spring or "hair spring"".
- Balance_spring wikiPageWikiLinkText "balance spring".
- Balance_spring wikiPageWikiLinkText "hairspring".
- Balance_spring wikiPageWikiLinkText "isochronous balance spring".
- Balance_spring wikiPageWikiLinkText "regulator".
- Balance_spring wikiPageWikiLinkText "spiral spring".
- Balance_spring wikiPageWikiLinkText "spring".
- Balance_spring wikiPageUsesTemplate Template:Reflist.
- Balance_spring wikiPageUsesTemplate Template:Section_OR.
- Balance_spring subject Category:Dutch_inventions.
- Balance_spring subject Category:English_inventions.
- Balance_spring subject Category:Springs_(mechanical).
- Balance_spring subject Category:Timekeeping_components.
- Balance_spring hypernym Spring.
- Balance_spring type Place.
- Balance_spring type Component.
- Balance_spring type Redirect.
- Balance_spring type Science.
- Balance_spring comment "A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces. It causes the balance wheel to oscillate with a resonant frequency when the timepiece is running, which controls the speed at which the wheels of the timepiece turn, and thus the rate of movement of the hands.".
- Balance_spring label "Balance spring".
- Balance_spring sameAs Q3107982.
- Balance_spring sameAs نابض_شعري.
- Balance_spring sameAs Resorte_regulador.
- Balance_spring sameAs Ressort_spiral.
- Balance_spring sameAs m.0803v_.
- Balance_spring sameAs Spiral_yay.
- Balance_spring sameAs Q3107982.
- Balance_spring sameAs 游絲.
- Balance_spring wasDerivedFrom Balance_spring?oldid=704287034.
- Balance_spring depiction Balance_spring_types.png.
- Balance_spring isPrimaryTopicOf Balance_spring.