Lub tswv yim ntawm "kev tsim hluav taws xob" tsis tshua muaj txiaj ntsig. Hauv ntau qhov chaw ntawm kev tshawb fawb thiab thev naus laus zis, lub ntsiab lus sib txawv tau muab tso rau hauv nws. Yog li ntawd, peb tuaj yeem tham txog dab tsi cov tshuab hluav taws xob tsuas yog nyob hauv cov ntsiab lus ntawm qee yam kev kawm.
Hauv kev paub dav dav, cov tshuab hluav taws xob nkag siab zoo li txhua yam siv tshuab, hluav taws xob thiab hluav taws xob, tshuab thiab khoom siv uas tsim cov khoom lag luam (tshuaj los yog lub zog) nrog cov yam ntxwv tshwj xeeb. Hauv ntau thaj chaw ntawm kev tshawb fawb, nrog rau cov txuj ci kev lag luam thiab cov chaw tsim khoom lag luam, muaj cov tswv yim zoo ntawm lub sijhawm "tshuab hluav taws xob".
Hauv tshuaj, nrog rau qee qhov kev lag luam, cov khoom siv uas ua kom muaj roj cua tau siv ntau zaus. Piv txwv li, lub tshuab hluav taws xob hydrogen lossis cov tshuab hluav taws xob acetylene. Cov cav tov uas hloov pauv cov tshuaj rau hauv qee lub xeev ntawm kev sib sau ua ke kuj yog hu ua cov tshuab hluav taws xob. Piv txwv li, cov tshuab ua kom sov lossis cov ua dej khov.
Hauv theoretical physics, muaj lub tswv yim hais txog cov khoom siv paub daws teeb uas muaj cov khoom zoo tagnrho, hu ua cov khoom siv lossis cov tshuab tsim hluav taws xob. Piv txwv, qhov no yog lub tshuab hluav taws xob ncaj qha (lub tshuab hluav taws xob tam sim no nws tsis yog nyob ntawm lub ntsaws tiv thaiv), lub tshuab hluav taws xob (EMF), lub tshuab hluav taws xob hloov tam sim no nrog rau kev muab ntau thiab zaus.
Hauv kev lag luam fais fab, cov tshuab hluav taws xob hu ua cov tshuab tiag thiab cov koog uas tsim hluav taws xob. Cov no suav nrog ob qho tib si hloov cov tshuab hluav taws xob tam sim no (los ntawm lub tsheb kauj vab lossis tsheb mus rau cov pa roj lossis cov tshuab hluav taws xob ntawm cov tshuab hluav taws xob) thiab cov khoom siv hluav taws xob ncaj qha (cov cell galvanic, Faraday disk, magnetohydrodynamic generators) tam sim no.
Cov teeb liab hluav taws xob yog siv feem ntau hauv cov khoom siv hluav taws xob. Lawv yog qhov tsim nyog kom tau txais qhov tam sim no ntawm ntau yam ntxwv (amplitude, zaus, theem) thiab cov qauv hluav taws xob hauv kev ncig ntawm cov cuab yeej. Muaj ntau qhov qauv sib txawv ntawm ntau lub tshuab hluav taws xob (ib leeg thiab multivibrators, sinusoidal oscillators, thaiv cov tshuab hluav taws xob, thiab lwm yam).
Hauv cov kev zov me nyuam, lub tshuab hluav taws xob nkag siab raws li qhov kev zov me nyuam los yog ib feem ntawm nws (chav kawm nrog cov txheej txheej txheej txheem, txheej txheem, kev ua haujlwm) uas tsim cov ntaub ntawv teeb nrog cov yam ntxwv xav tau. Piv txwv, pseudo-random tooj generator lossis cov ntaub ntawv pov thawj tsim hluav taws xob (xws li Doxygen).
