Cov no feem ntau yog los ntawm qee qhov cuam tshuam rau lub cev. Piv txwv li, cov nyhuv piezoelectric: thaum qee cov ntaub ntawv crystalline vibrate nyob rau hauv mechanical quab yuam, tus nqi hluav taws xob tsim tawm ntawm lawv qhov chaw. Los ntawm kev sau thiab ntsuas cov nqi no, qhov kev vibration tuaj yeem txiav txim siab. Lwm lub hauv paus ntsiab lus yog electromagnetic induction, uas siv cov lus tsa suab ntawm tus neeg xyuas pib txiav cov kab sib nqus ntawm lub zog hauv qhov chaw sib nqus los ua kom muaj kev cuam tshuam electromotive quab yuam, hloov qhov kev vibration tshaj tawm rau hauv lub teeb liab hluav taws xob. Ntau hom kev vibration sensors zoo li "tus neeg txhais lus" nrog rau "kev txawj ntse," txhua tus qhia nws lub peev xwm tshwj xeeb raws li qhov xav tau tiag tiag.
