Dab tsi yog hom kub sensors?
Tso lus
Muaj plaub yam tseem ceeb ntawm cov ntsuas kub: thermocouples, thermistors, ntsuas kub tsis kam (RTDs), thiab IC kub sensors (saib cov lus hauv qab). IC kub sensors muaj ob hom: analog tso zis thiab cov zis digital.
Thermocouples yog dav siv vim lawv muaj zog heev thiab tsis kim heev. Muaj ntau hom thermocouples uas npog qhov kub thiab txias, txij li -200 degree mus rau 2000 degree . Lawv cov yam ntxwv yog: tsis tshua muaj rhiab heev, tsis tshua muaj kev ruaj ntseg, nruab nrab qhov tseeb, qeeb teb ceev, yooj yim aging thiab drift ntawm kub kub, thiab nonlinearity. Tsis tas li ntawd, cov thermocouples yuav tsum muaj cov khoom siv sab nraud.
RTD muaj qhov raug siab heev thiab nruab nrab linearity. Lawv yog cov tshwj xeeb ruaj khov thiab tuaj nyob rau hauv ntau configurations. Tab sis lawv qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag li 400 degree. Lawv kuj muaj TC loj, kim (4-10 zaus ntawm cov thermocouples), thiab xav tau ib qho kev siv sab nraud.
Lub analog tso zis IC kub sensor muaj siab linearity (uas tuaj yeem tsim cov zis digital yog tias ua ke nrog analog-rau-digital converter lossis ADC), tus nqi qis, qhov tseeb siab (kwv yees li 1 [%)), me me, thiab kev daws teeb meem siab. Lawv qhov tsis txaus ntseeg nyob hauv qhov ntsuas kub tsawg (-55 degree rau +150 degree ) thiab qhov xav tau rau kev siv sab nraud
Lub digital tso zis IC kub sensor los nrog ib tug built-in reference qhov chaw, thiab lawv cov lus teb ceev kuj tseem qeeb heev (ntawm qhov kev txiav txim ntawm 100 ms). Txawm hais tias lawv inherently tsim cua sov ntawm lawv tus kheej, lawv tuaj yeem siv tsis siv neeg kaw thiab ib qho kev hloov pauv ib zaug los teeb lub IC mus rau lub xeev qis zog ua ntej yuav tsum ntsuas, yog li txo lawv tus kheej cov cua sov.
Piv nrog rau cov thermistor, RTD, thiab cov thermocouple sensors, IC kub sensors muaj siab linearity, tsis tshua muaj nqi system, integrated complex functions, muaj peev xwm muab ib tug digital tso zis, thiab muaj peev xwm ua tau kub ntsuas nyob rau hauv ib tug muaj txiaj ntsim ntau yam.
