photoelectric sensor
Cov ntsuas hluav taws xob photoelectric sensor yog ib qho cuab yeej uas hloov cov teeb liab mus rau hauv hluav taws xob cov cim. Nws cov ntsiab cai ua haujlwm yog ua haujlwm raws li cov teebmeem photoelectric. Cov kev yees duab hluav taws xob txhais tau hais tias thaum lub teeb tsis muaj kev cuam tshuam ntawm qee yam khoom siv, cov xaim hluav taws xob ntawm cov khoom nqus lub zog ntawm photon thiab cov hluav taws xob cuam tshuam tshwm sim.