Thermistors: Cov ntsuas kub ntsuas kub
Thermistors ua zoo li lub tshuab tsom iav hauv lub ntiaj teb ntawm qhov kub thiab txias, ua tau zoo ntawm kev hloov pauv feeb. Cov sensors no ua haujlwm los ntawm kev txheeb xyuas qhov kev hloov pauv hauv qhov tsis kam nrog qhov kub thiab txias, thiab muaj ob hom:
NTC (Negative Temperature Coefficient): Tsis kam txo qis thaum kub nce, haum rau thaj tsam ntawm -50℃txog 150 degree.
PTC (Positive Temperature Coefficient): Tsis kam nce thaum kub nce, feem ntau siv rau kev tiv thaiv overheat.
Qhov zoo muaj xws li cov lus teb ceev ceev thiab qhov raug siab, tab sis qhov ntsuas qhov ntsuas tsawg.
Thermocouples: Siab -Tub qub tub rog hauv kev lag luam
Thermocouples yog suav hais tias yog cov tub rog steel ntawm qhov ntsuas kub, ua los ntawm kev sib txuas ob hlau sib txawv ua ke. Thaum qhov kub sib txawv tshwm sim ntawm lawv qhov kawg, lub teeb liab hluav taws xob tsim tawm (Seebeck effect). Cov yam ntxwv muaj xws li:
Ultra- ntsuas qhov dav: Qee tus qauv tuaj yeem ntsuas ntawm -200℃txog 2300 degree.
Cov qauv yooj yim: Tsis muaj qhov puas tsuaj yooj yim, tiv taus cov neeg kho tshuab poob siab.
Cov lus teb ceev ceev: Tsim nyog rau kev soj ntsuam qhov kub thiab txias.
Disadvantages muaj xws li ib tug kuj tsis muaj zog teeb liab, yuav tsum tau ib tug tshwj xeeb amplifier.
Infrared Sensors: Tsis yog - Hu rau Cov Kws Ntsuas Ntsuas Kub
Infrared kub sensors ua zoo li lub tsom iav hauv lub ntiaj teb ntawm kev ntsuas kub, ntsuas qhov kub thiab txias yam tsis muaj kev sib cuag nrog cov khoom. Lawv ua haujlwm raws li cov hluav taws xob infrared tawm los ntawm cov khoom. Cov ntawv thov ib txwm muaj xws li:
Kev ntsuas kub ntawm cov khoom txav (piv txwv li, cov kab ntau lawm).
Ib puag ncig txaus ntshai (siab- cov khoom siv hluav taws xob hluav taws xob).
Cov chaw muaj kev nyiam huv siab (kev ua zaub mov).
