Hauv kev tsim cov khoom siv hluav taws xob, cov hlau nplaum yog cov khoom siv tseem ceeb thiab tau siv dav hauv kev tsim khoom thiab siv ntau yam tseem ceeb. Cov khoom no suav nrog cov motors, hais lus, microphones, sensors thiab cov khoom siv sib nqus, uas ua lub luag haujlwm tseem ceeb hauv cov khoom siv hluav taws xob.
Magnets hauv kev siv hluav taws xob
Kev siv cov hlau nplaum hauv cov tshuab hluav taws xob yog qhov tseem ceeb. Txawm hais tias nws yog DC lub cev muaj zog lossis AC lub cev muaj zog, cov hlau nplaum yog ib qho ntawm nws cov khoom tseem ceeb. Los ntawm kev cuam tshuam nrog lub kauj, cov hlau nplaum tsim ib qho chaw sib nqus uas ua rau lub cev muaj zog. Lub tshuab hluav taws xob tau siv dav hauv tsheb, khoom siv hauv tsev, kev tsim khoom thiab lwm yam kev lag luam, thiab cov hlau nplaum, uas yog ib qho tseem ceeb ntawm lub cev muaj zog, cuam tshuam ncaj qha rau kev ua haujlwm thiab kev ua haujlwm ntawm lub cev muaj zog.
Tus neeg hais lus yog ib qho khoom siv uas hloov cov teeb liab hluav taws xob rau hauv lub suab, thiab cov hlau nplaum yog ib qho tseem ceeb ntawm tus hais lus. Nyob rau hauv ib tug hais lus, cov hlau nplaum sib cuam tshuam nrog lub magnetic teb generated los ntawm tam sim no ua rau lub vibrating qhov chaw ntawm tus hais lus (xws li lub diaphragm los yog oscillator) txav, yog li ua suab.
Txij li cov hlau nplaum ncaj qha cuam tshuam rau lub zog sib nqus thiab kev ruaj ntseg ntawm tus hais lus, nws qhov zoo thiab kev ua tau zoo muaj kev cuam tshuam ncaj qha rau lub suab zoo thiab ntim ntawm tus hais lus. Cov hlau nplaum zoo tuaj yeem tsim qhov chaw ruaj khov thiab muaj zog sib nqus, tso cai rau lub diaphragm kom vibrate sai thiab raug, ua kom pom tseeb, qhov tseeb. Tsis tas li ntawd, qhov kev ua tau zoo ntawm cov hlau nplaum tseem cuam tshuam ncaj qha rau lub zog tso zis thiab cov lus teb zaus ntawm tus neeg hais lus, cuam tshuam rau kev nthuav tawm thiab cov ntsiab lus ntawm cov suab paj nruag lossis suab.
Yog li ntawd, thaum xaiv tus hais lus, cov hlau nplaum zoo yog qhov tseem ceeb. Cov hlau nplaum zoo heev tuaj yeem tsis tsuas yog muab qhov chaw sib nqus ruaj khov, tab sis kuj ua kom muaj kev ruaj ntseg ntev thiab kev ntseeg siab ntawm tus neeg hais lus, yog li coj cov neeg siv kev mloog zoo dua.
Daim ntawv thov ntawm cov hlau nplaum nyob rau hauv magnetic induction sensors yog qhov ntau tshaj thiab tseem ceeb. Sib nqus induction sensors siv cov kev hloov hauv qhov chaw sib nqus kom pom qhov chaw, kev taw qhia lossis kev txav ntawm ib qho khoom. Raws li cov khoom tseem ceeb hauv kev tsim cov hlau nplaum sib nqus, cov hlau nplaum tuaj yeem cuam tshuam nrog cov hlau nplaum rhiab heev (xws li Hall sensors) hauv cov hlau nplaum induction sensors los ntsuas thiab ntsuas qhov siv, kev taw qhia thiab kev hloov ntawm cov hlau nplaum. Hom sensor no feem ntau siv rau hauv cov ntawv thov xws li kev tshawb nrhiav txoj haujlwm, ntsuas qhov nrawm, hloov tswj, thiab lwm yam.
