Nrog rau txoj kev loj hlob ntawm lub sijhawm, kev lag luam xws li kev tshawb fawb tshawb fawb, kev ua liaj ua teb, HVAC, textiles, computer chav, aerospace, thiab hluav taws xob yuav tsum tau siv ntau dua.av noosensors. Qhov kev thov rau cov khoom zoo tau nce siab dua, thiab kev tswj hwm ib puag ncigkubthiab cov av noo, nrog rau kev saib xyuas thiab kev tsom xam ntawm cov dej noo ntawm cov khoom siv hauv kev lag luam, tau ua txhua yamtechnicalkev xav tau. Humidity sensors thiab ntsuas av noo yog kev lag luam uas tshwm sim hauvXyoo 1990s. Yuav siv cov av noo sensors zoo li cas thiab yuav txiav txim li caskev ua tau zoontawm cov av noo sensors tseem yog ib qho teeb meem nyuaj rau cov neeg siv nruab nrab.
Nov yog qee cov lus qhia rau koj txog kev xaiv cov av noo sensors:
Kev faib tawm thiab cov yam ntxwv ntawm cov av noo sensors: Humidity sensors tau muab faib ua hom tsis kam thiabcapacitance-hom, thiab daim ntawv tseem ceeb ntawm cov khoom yog los tiv thaiv cov khoom siv ntawm lub substrate los tsim ib daim nyias nyias. Tom qabdejvapor nyob rau hauv cov huab cua yog adsorbed ntawm cov khoom siv, qhov impedance thiab dielectric tas li ntawm lub caij hloov pauv loj, yog li tsim cov av noo-rhiab heev.
Qhov tseeb thiab kev ruaj ntseg mus ntev: Qhov tseeb ntawm cov av noo sensors yuav tsum ncav cuag ± 2% txog ± 5% RH. Nws yog qhov nyuaj kom ua tiav qib no, thiab feem ntau, qhov drift yog nyob rau hauv ± 2%. Txawm siab dua.
Kubcoefficient of humidity sensors: Ntxiv rau qhov ua rau cov av noo ib puag ncig, cov av noo sensors kuj tseem ceeb heev rau qhov kub thiab txias. Qhov kub coefficient feem ntau nyob hauv 0.2 txog 0.8% RH / ℃, thiab qee qhov yuav txawv nyob ntawm qhov txheeb ze av noo. Cov kab hluav taws xob kub ntawm cov av noo sensors ncaj qha cuam tshuam rau cov txiaj ntsig kev them nyiaj, thiab tsis yog-linear kub drift feem ntau tsis ua tiav cov txiaj ntsig zoo.Tsuas yognrog kho vajtse kub nrhiav kev them nyiaj tuaj yeem ua tiav cov txiaj ntsig them nyiaj tiag. Kev khiav hauj lwm kub ntawm feem ntau cov av noo sensors yog qhov nyuaj tshaj 40 ℃.
Hwj chimKev muab cov av noo sensors: Feem ntau cov ntaub ntawv noo noo-rhiab heev xws li hlau oxide ceramics, polymers, thiab lithium chloride tau hloov pauv kev ua haujlwm lossis txawm tias tsis ua haujlwm thaum thov DChluav taws xob. Yog li, cov av noo sensors yuav tsum tau siv los ntawm ACzog.
Interchangeability: Tam sim no, muaj teeb meem loj nrog kev sib hloov ntawm cov av noo sensors. Sensors ntawm tib tus qauv tsis tuaj yeem hloov pauv, uas cuam tshuam rau kev siv cov txiaj ntsig thiab ntxiv kev nyuaj rau kev saib xyuas thiab commissioning. Qee cov tuam ntxhab tau ua ntau yam kev siv zog hauv qhov no thiab tau ua tiav cov txiaj ntsig zoo.
Humidity calibration: Calibration of humidity yog qhov nyuaj tshaj li qhov ntsuas kub. Tus qauv ntsuas kub feem ntau yog siv rau qhov ntsuas kub, tab sis rau cov av noo calibration, saturated ntsev tov calibration txoj kev feem ntau yog siv, thiab qhov kub thiab txias yuav tsum tau ntsuas.
Muaj ntau txoj hauv kev rau kev txiav txim siab txog kev ua haujlwm ntawm cov av noo sensors: Thaum tsis muaj qhov nyuaj calibration ntawm cov av noo sensors, qee txoj kev yooj yim thiab yooj yim siv tau los txiav txim qhov kev ua tau zoo ntawm cov av noo sensors.
Kev txiav txim siab sib xws: Yuav ntau dua ob lub ntsuas cua ntawm tib hom thiab cov chaw tsim khoom. Qhov ntau, qhov zoo. Muab lawv ua ke thiab sib piv cov txiaj ntsig tso zis. Nyob rau hauv cov xwm txheej ruaj khov, saib xyuas qhov sib xws ntawm qhov kev xeem. Kev ntsuas ntxiv tuaj yeem ua tiav los ntawm kev kaw cov ntu ntu hauv 24 teev, thiab soj ntsuam cov av sib txawv thiab qhov kub thiab txias, xws li siab, nruab nrab, thiab qis qis, kom ua raws li qhov sib xws thiab ruaj khov ntawm cov khoom, nrog rau cov yam ntxwv ntawm qhov kub thiab txias.
Humidity sensing los ntawm tshuab nrog lub qhov ncauj los yog siv lwm txoj kev humidification: Saib nws rhiab heev, reproducibility, noo noo nqus thiab desorption kev ua tau zoo, nrog rau kev daws teeb meem thiab ntau yam ntawm cov khoom.
Kev sim hauv cov thawv qhib thiab kaw: Sib piv thiab sim seb lawv puas zoo ib yam, thiab saib xyuas cov nyhuv thermal.
Kev ntsuam xyuas ntawm qhov kub thiab txias (raws li tus qauv hauv phau ntawv): Ntsuas thiab sib piv nrog cov ntaub ntawv ua ntej thiab tom qab rov qab mus rau qhov qub, tshuaj xyuas qhov kub thiab txias adaptability ntawm cov khoom thiab saib xyuas qhov sib xws ntawm cov khoom.
Qhov kev ua tau zoo ntawm cov khoom kawg yog nyob ntawm qhov ua tiav thiab tsim nyog cov txheej txheem ntawm kev soj ntsuam zoo. Covsaturationntsev tov yog siv rau calibration, los yog cov khoom yuav muab piv thiab kuaj. Lub sij hawm ntev calibration thaum lub sij hawm mus sij hawm ntev ntawm cov khoom yog tseem tsim nyog los txiav txim siab zoo ntawm cov av noo sensor.
Kev soj ntsuam ntawm ntau cov khoom lag luam ntawm cov av noo nyob rau hauv kev ua lag luam: Ntau yam khoom siv hauv tsev thiab txawv teb chaws cov khoom lag luam tau tshwm sim nyob rau hauv kev ua lag luam, nrog capacitance-hom ya raws-rhiab heevcov ntsiab lus tau ntau dua. Cov khoom siv los ntsuas qhov tseem ceeb muaj xws li polymers, lithiumtshuaj chloride, thiab hlau oxides.
Qhov zoo ntawm capacitance-hom noo noo-rhiab ntsiab lus yog cov lus teb ceev ceev, me me, thiab zoo linearity. Lawv kuj ruaj khov. Qee cov khoom txawv teb chaws kuj muaj qhov kub thiab txias ua haujlwm. Txawm li cas los xij, cov khoom ua tau zoo ntawm hom no feem ntau yog los ntawm txawv teb chaws thiab kuj kim heev. Qee cov khoom lag luam qis hauv khw feem ntau ua tsis tau raws li cov qauv saum toj no, nrog cov kab tsis zoo, sib xws, thiab rov tsim dua tshiab. Qhov sib txawv ntawm cov av qis thiab sab saud (hauv qab 30% RH thiab siab dua 80% RH) yog qhov tseem ceeb. Qee cov khoom siv ib leeg-chip microcomputers rau kev them nyiaj thiab kev kho, uas txo qhov raug thiab qhia txog qhov tsis txaus ntawm qhov sib txawv loj thiab tsis zoo linearity. Txawm hais tias qhov siab lossis qis-kawg capacitance-hom ya raws-rhiab ntsiab lus, kev ruaj ntseg mus sij hawm ntev tsis zoo tagnrho. Tom qab siv lub sij hawm ntev, drift yog feem ntau hnyav, thiab variation ntawm noo noo-rhiab heevcapacitanceqhov tseem ceeb yog nyob rau theem pF. Ib qho kev hloov pauv 1% RH tsawg dua 0.5 pF, thiab qhov kev cuam tshuam ntawm qhov muaj peev xwm feem ntau ua rau muaj qhov yuam kev ntawm kaum ntawm RH%. Feem ntau cov capacitance-hom ya raws-rhiab cov ntsiab lus tsis muaj kev ua haujlwm ntawm qhov kub siab tshaj 40 ℃, thiab lawv feem ntau ua tsis tau lossis puas lawm.
Capacitive noo noo-rhiab ntsiab tseem muaj qee qhov tsis zoo ntawm kev tiv thaiv corrosion. Lawv feem ntau xav tau kev huv huv hauv ib puag ncig. Qee cov khoom lag luam kuj ua rau tsis ua haujlwm xws li lub teeb tsis ua haujlwm thiab tsis ua haujlwm zoo li qub. Hlau oxide ceramic humidity sensors muaj qhov zoo ib yam li capacitive humidity sensors, tab sis plua plav ntsaws ntawm cov pores ceramic tuaj yeem ua rau cov khoom tsis ua haujlwm. Feem ntau, txoj kev siv hluav taws xob tshem tawm cov plua plav yog siv, tab sis cov nyhuv tsis zoo, thiab nws tsis tuaj yeem siv rau hauv qhov chaw tawg thiab tawg. Alumina sensing cov ntaub ntawv tsis tuaj yeem kov yeej qhov tsis muaj zog ntawm "natural aging" ntawm cov qauv saum npoo, thiab qhov impedance tsis ruaj khov. Hlau oxide ceramic humidity sensors kuj muaj qhov tsis zoo ntawm kev ruaj ntseg mus ntev.
Lithium chloride humidity sensors muaj qhov zoo tshaj plaws ntawm kev ruaj ntseg mus ntev. Los ntawm cov txheej txheem nruj heev, cov cuab yeej tsim khoom thiab cov khoom siv tuaj yeem ua tiav qhov raug siab, ruaj khov zoo, thiab linearity, ua kom ntseeg tau lub neej ntev kev pab cuam. Lithium chloride humidity sensors tsis tuaj yeem hloov los ntawm lwm cov ntaub ntawv paub txog kev ruaj ntseg mus ntev.
Post lub sij hawm: Feb-26-2024