Nws tag nrho pib nrog lub sensor.Tsis zoo li tus pas ntsuas kub ua kua dej thiab cov ntsuas ob-hlau, tus pas ntsuas kub digital xav tau lub ntsuas ntsuas.
Cov sensors no txhua tus tsim hluav taws xob, tam sim no, lossis kev hloov pauv thaum muaj qhov hloov pauv ntawm qhov kub thiab txias.Cov no yog 'analog' signals as opposed to digital signals.Lawv tuaj yeem siv los ntsuas qhov ntsuas kub hauv qhov ncauj, qhov quav, lossis caj npab.
Cov ntsuas hluav taws xob hluav taws xob ua haujlwm nyob rau hauv ib txoj kev sib txawv kiag li rau cov neeg kho tshuab uas siv cov kab mercury los yog spinning pointers.Lawv ua raws li lub tswv yim hais tias qhov kev tiv thaiv ntawm ib daim hlau (qhov yooj yim uas hluav taws xob ntws los ntawm nws) hloov raws li qhov kub thiab txias.Raws li cov hlau tau kub dua, cov atoms vibrate ntau dua hauv lawv, nws nyuaj rau cov hluav taws xob ntws, thiab qhov tsis kam nce.Ib yam li ntawd, raws li cov hlau txias, cov electrons txav tau yooj yim dua thiab qhov tsis kam poob.
Cov hauv qab no yog peb qhov tseeb siab nrov digital ntsuas kub rau koj siv:
