Ndi chitukuko cha nthawi, mafakitale monga kafukufuku wa sayansi, ulimi, HVAC, nsalu, zipinda zamakompyuta, ndege, ndi magetsi akufunikira kwambiri kugwiritsa ntchitochinyezimasensa. Kufunika kwa khalidwe la mankhwala kukukulirakulira, ndikuwongolera chilengedwekutenthandi chinyezi, komanso kuyang'anira ndi kusanthula chinyezi cha zipangizo zamakampani, zonse zakhala zofalalusozofunika. Masensa a chinyezi ndi kuyeza kwa chinyezi ndi mafakitale omwe adatuluka mu1990s. Momwe mungagwiritsire ntchito masensa a chinyezi moyenera komanso momwe mungaweruzirentchitoMasensa a chinyezi akadali nkhani yovuta kwambiri kwa ogwiritsa ntchito.
Nawa maumboni ena amomwe mungasankhire masensa a chinyezi:
Gulu ndi mawonekedwe a masensa chinyezi: Sensa chinyezi amagawidwa kukana-mtundu ndikuthekera -mtundu, ndipo mawonekedwe ofunikira a chinthucho ndi kuvala chinthu chodziwikiratu pagawo lapansi kuti apange nembanemba yozindikira. PambuyomadziMpweya mumlengalenga umakongoletsedwa pa zinthu zomverera, kupindika ndi dielectric mosasinthasintha za chinthucho zimasintha kwambiri, motero kupanga chinthu chosamva chinyezi.
Kulondola komanso kukhazikika kwanthawi yayitali: Kulondola kwa masensa a chinyezi kuyenera kufika ± 2% mpaka ± 5% RH. Ndizovuta kukwaniritsa mulingo uwu, ndipo nthawi zambiri, kutengeka kumakhala mkati mwa ± 2%. Ngakhale apamwamba.
Kutenthacoefficient of humidity sensors: Kuphatikiza pa kukhudzidwa ndi chinyezi cha chilengedwe, masensa a chinyezi amakhudzidwa kwambiri ndi kutentha. Kutentha kwapakati nthawi zambiri kumakhala mkati mwa 0.2 mpaka 0.8% RH/℃, ndipo ena amatha kusiyanasiyana kutengera chinyezi. Kusuntha kwa kutentha kwa sensa ya chinyezi kumakhudza kwambiri chipukuta misozi, ndipo kutentha kopanda mzere nthawi zambiri kumalephera kupeza zotsatira zabwino za chipukuta misozi.Kokhandi hardware kutentha kutsatira chipukuta misozi akhoza kwenikweni chipukuta misozi zotsatira chingapezeke. Kutentha kwa magwiridwe antchito a masensa ambiri a chinyezi ndizovuta kupitilira 40 ℃.
MphamvuKupezeka kwa masensa a chinyezi: Zida zambiri zomwe sizimamva chinyezi monga zitsulo za ceramic oxide, ma polima, ndi lithiamu chloride zimasintha kapena kulephera kugwiritsa ntchito DC.Voteji. Chifukwa chake, masensa achinyezi awa ayenera kuyendetsedwa ndi ACmphamvu.
Kusinthana: Pakali pano, pali vuto lalikulu ndi kusinthasintha kwa masensa a chinyezi. Zomverera za mtundu womwewo sizingasinthidwe, zomwe zimakhudza kwambiri kugwiritsa ntchito komanso kumawonjezera zovuta pakukonza ndi kutumiza. Opanga ena ayesetsa mosiyanasiyana pankhaniyi ndipo apeza zotsatira zabwino.
Kuwongolera chinyezi: Kuwongolera chinyezi ndikovuta kwambiri kuposa kuwongolera kutentha. Ma thermometers okhazikika nthawi zambiri amagwiritsidwa ntchito poyesa kutentha, koma pakuwongolera chinyezi, njira zoyezera mchere wothira nthawi zambiri zimagwiritsidwa ntchito, komanso kutentha kumayenera kuyezedwanso.
Njira zingapo zowonera momwe ma sensor amadzi amagwirira ntchito: Popanda kuwongolera kosavuta kwa masensa a chinyezi, njira zina zosavuta komanso zosavuta zitha kugwiritsidwa ntchito kuweruza momwe masensa a chinyezi amagwirira ntchito.
Kutsimikiza kwa kusasinthika: Gulani zodziwikiratu za chinyezi zopitilira ziwiri zamtundu womwewo komanso wopanga. Kuchuluka, kuli bwino. Ikani izo palimodzi ndi kuyerekezera zikhalidwe zomwe zimachokera. Pansi pazikhalidwe zokhazikika, onani kugwirizana kwa mayeso. Kuyesa kwina kutha kuchitidwa pojambula pakapita nthawi mkati mwa maola 24, ndikuwona munyengo zosiyanasiyana za chinyezi ndi kutentha, monga kumtunda, sing'anga, ndi chinyezi chochepa, kuti muwone bwino kusasinthika ndi kukhazikika kwa chinthucho, kuphatikiza mawonekedwe a chipukuta misozi.
Kuzindikira chinyezi pouzira m'kamwa kapena kugwiritsa ntchito njira zina zochepetsera: Yang'anani kukhudzika kwake, kupangika kwake, kuyamwa kwa chinyezi ndi kusungunuka kwake, komanso kusinthika ndi kuchuluka kwake kwazinthuzo.
Kuyesa m'mabokosi otsegula ndi otsekedwa: Fananizani ndikuyesa ngati akugwirizana, ndikuwona momwe kutentha kumayendera.
Kuyeza kutentha kwambiri komanso kutsika (malinga ndi zomwe zili m'bukuli): Yesani ndikuyerekeza ndi zolembedwa musanabwerere komanso mutabwerera mwakale, kuti muwone kutentha kwa chinthucho ndikuwona kusasinthika kwa chinthucho.
Kuchita kwa mankhwalawa pamapeto pake kumadalira njira zodziwikiratu komanso zoyenera za dipatimenti yoyang'anira bwino. ThekuchulukaMchere wa mchere umagwiritsidwa ntchito pokonza, kapena mankhwala akhoza kufananizidwa ndikuyesedwa. Kuwongolera kwanthawi yayitali pakugwiritsa ntchito kwanthawi yayitali ndikofunikira kuti muweruze momveka bwino za sensor ya chinyezi.
Kuwunika kwazinthu zingapo za sensor ya chinyezi pamsika: Zinthu zambiri zapanyumba ndi zakunja zakunja zatuluka pamsika, zokhala ndi chinyezi chamtundu wa capacitance-tcheruzinthu kukhala zofala. Mitundu ya zida zomverera makamaka zimaphatikizapo ma polima, lithiamukloridi, ndi metal oxides.
Ubwino wa capacitance-mtundu wosamva chinyezi ndi liwiro la kuyankha mwachangu, kakulidwe kakang'ono, ndi mzere wabwino. Iwo ali okhazikika. Zogulitsa zina zakunja zimakhalanso ndi ntchito yotentha kwambiri. Komabe, zinthu zogwira ntchito kwambiri zamtunduwu nthawi zambiri zimakhala zochokera kunja ndipo zimakhala zokwera mtengo. Zogulitsa zina zotsika mtengo pamsika nthawi zambiri zimalephera kukwaniritsa miyezo yomwe ili pamwambayi, yokhala ndi mzere wosasinthasintha, wosasinthasintha, ndi kuberekana. Kusiyanasiyana kwa chinyezi chapansi ndi chapamwamba (pansi pa 30% RH ndi pamwamba pa 80% RH) ndikofunika. Zogulitsa zina zimagwiritsa ntchito ma microcomputer a single-chip kuti alipire ndikuwongolera, zomwe zimachepetsa kulondola ndikuwonetsetsa zolakwika zapatuka kwakukulu komanso kusayenda bwino. Mosasamala kanthu za zinthu zapamwamba kapena zotsika capacitance-mtundu wa chinyezi, kukhazikika kwa nthawi yaitali sikoyenera. Pambuyo pakugwiritsa ntchito kwa nthawi yayitali, kugwedezeka nthawi zambiri kumakhala koopsa, ndipo kusinthasintha kwa chinyezi kumakhala kosavutakuthekerama values ali pa pH level. Kusintha kwa 1% RH kumakhala kochepera 0.5 pF, ndipo kusokonekera kwa ma capacitance values nthawi zambiri kumayambitsa zolakwika makumi a RH%. Zinthu zambiri zamtundu wa capacitance zomwe zimakhudzidwa ndi chinyezi sizigwira ntchito pa kutentha kopitilira 40 ℃, ndipo nthawi zambiri zimalephera kapena kuwonongeka.
Capacitive chinyezi-sensitive elements alinso ndi zofooka zina ponena za kukana dzimbiri. Nthawi zambiri amafunikira ukhondo wambiri m'malo. Zogulitsa zina zimakondanso kulephera monga kulephera kwa kuwala komanso kulephera kwamphamvu. Metal oxide ceramic humidity sensors ali ndi zabwino zomwezo monga capacitive humidity sensors, koma kutulutsa fumbi kwa pores za ceramic kungayambitse kulephera kwa gawo. Nthawi zambiri, njira yopangira mphamvu kuti ichotse fumbi imagwiritsidwa ntchito, koma zotsatira zake sizabwino, ndipo sizingagwiritsidwe ntchito m'malo oyaka moto komanso ophulika. Zida zowonera za alumini sizingagonjetse kufooka kwa "kukalamba kwachilengedwe" kwa kapangidwe kapamwamba, ndipo cholepheretsacho sichikhazikika. Metal oxide ceramic humidity sensors imakhalanso ndi vuto la kukhazikika kwanthawi yayitali.
Lithium chloride humidity sensors ali ndi mwayi wodziwika bwino wa kukhazikika kwanthawi yayitali. Kupyolera mu kupanga ndondomeko yokhwima, zida zopangidwa ndi masensa zimatha kukwaniritsa zolondola kwambiri, kukhazikika bwino, ndi mzere, kuonetsetsa moyo wodalirika wautumiki wautali. Lithium chloride humidity masensa sangasinthidwe ndi zida zina zozindikira potengera kukhazikika kwanthawi yayitali.
Nthawi yotumiza: Feb-26-2024