Thaum siv rau kev saib xyuas kev lag luam, cov sensors tuaj yeem sau cov xwm txheej ambience. Cov teeb liab sensor yog siv nyob rau hauv cov txheej txheem mus txuas ntxiv taug qab kev hloov pauv rau thaj chaw uas tau saib xyuas. Ob qho digital thiab analogue teeb liab tuaj yeem tshwm sim.
Feem ntau ib qho hluav taws xob hluav taws xob lossis tus nqi tam sim no raug tsim tawm uas sib haum rau lub cev hloov pauv uas tau saib xyuas
Analogue teeb liab ua yog yuav tsum tau thaum cov txheej txheem automation yuav tsum tau lossi tswj los yog ncav cuag tej yam kev mob. Qhov no tseem ceeb tshwj xeeb rau cov txheej txheem automation daim ntawv thov. Standardized hluav taws xob teeb liab feem ntau yog siv rau cov txheej txheem engineering. Analogue standardized tam sim no / voltage 0 (4) ... 20 mA / 0... 10 V tau tsim lawv tus kheej raws li lub cev ntsuas thiab tswj qhov sib txawv.