Chitsime: Ulink Media
M'nthawi ya mliri, timakhulupirira kuti masensa a infrared ndi ofunikira tsiku lililonse.Ponyamuka, tifunika kuyeza kutentha mobwerezabwereza tisanafike komwe tikupita.Monga muyeso wa kutentha ndi kuchuluka kwa masensa a infrared, kwenikweni, pali maudindo ambiri ofunikira.Kenako, tiyeni tiwone bwino sensa ya infrared.
Chidziwitso cha masensa a Infrared
Chilichonse chomwe chili pamwamba pa ziro (-273 ° C) chimatulutsa mphamvu ya infrared nthawi zonse m'malo ozungulira, titero.Ndipo sensa ya infuraredi, imatha kumva mphamvu ya infuraredi ya chinthucho ndikuisintha kukhala zigawo zamagetsi.Sensor ya infrared imakhala ndi optical system, detective element ndi conversion circuit.
Dongosolo la Optical litha kugawidwa mumtundu wotumizira ndi mtundu wowonetsera molingana ndi kapangidwe kake.Kutumiza kumafuna magawo awiri, imodzi yotumizira infrared ndi ina kulandira infuraredi.Chowonetsera, kumbali ina, chimafunika sensor imodzi yokha kuti itenge zomwe mukufuna.
Chowunikiracho chitha kugawidwa m'magawo owunikira matenthedwe ndi chinthu chowunikira ma photoelectric malinga ndi mfundo yogwirira ntchito.Ma thermitors ndi omwe amagwiritsidwa ntchito kwambiri.Pamene thermistor ikukumana ndi cheza cha infuraredi, kutentha kumawonjezeka, ndipo kukana kumasintha (kusinthaku kungakhale kokulirapo kapena kochepa, chifukwa chotenthetsera chikhoza kugawidwa kukhala choyezera kutentha kwa mpweya wabwino ndi kutentha koyipa kwa coefficient thermistor), chomwe chingasinthidwe kukhala chizindikiro chamagetsi. kudzera mu dera lotembenuka.Zinthu zozindikira za Photoelectric zimagwiritsidwa ntchito ngati zinthu zowoneka bwino, zomwe nthawi zambiri zimapangidwa ndi lead sulfide, lead selenide, indium arsenide, antimony arsenide, mercury cadmium telluride ternary alloy, germanium ndi silicon doped materials.
Malinga ndi ma circulation osiyanasiyana osinthira ma siginecha, masensa a infrared amatha kugawidwa mumtundu wa analogi ndi digito.Makina opangira ma sign a analogi pyroelectric infrared sensor ndi chubu chogwira ntchito, pomwe makina opangira ma sign a digito pyroelectric infrared sensor ndi digito chip.
Ntchito zambiri za sensa ya infuraredi zimazindikirika kudzera pakuloleza kosiyanasiyana komanso kuphatikiza kwa zigawo zitatu zodziwika bwino: optical system, chinthu chodziwikiratu ndi kutembenuka kozungulira.Tiyeni tiwone madera ena omwe masensa a infrared asintha.
Kugwiritsa ntchito Sensor ya Infrared
1. Kuzindikira gasi
Mfundo ya infrared Optical of Gas Sensor ndi mtundu wotengera mawonekedwe apafupi ndi ma infrared spectral selective mayamwidwe a mamolekyu osiyanasiyana a mpweya, kugwiritsa ntchito ndende ya gasi komanso ubale wamphamvu wamayamwidwe (Lambert - Bill Lambert Beer Law) kuzindikira ndikuzindikira kuchuluka kwa gawo la gasi. chipangizo chozindikira.
Masensa a infrared angagwiritsidwe ntchito kupeza mapu owunikira ma infrared monga momwe tawonera pamwambapa.Mamolekyulu opangidwa ndi ma atomu osiyanasiyana amayamwa ndi infuraredi molumikizana ndi kuwala kwa infrared pafupipafupi, zomwe zimapangitsa kusintha kwamphamvu kwa kuwala kwa infuraredi.Malinga ndi nsonga za mafunde osiyanasiyana, mitundu ya gasi yomwe ili mu osakaniza imatha kudziwitsidwa.
Malinga ndi malo a nsonga imodzi ya mayamwidwe a infrared, magulu okhawo omwe amapezeka mu molekyulu ya mpweya angadziwike.Kuti tidziwe bwino mtundu wa gasi, tiyenera kuyang'ana malo omwe amayamwa nsonga zonse zapakati pa infrared ya gasi, zomwe ndi zala za infrared za gasi.Ndi infuraredi sipekitiramu, zili mu mpweya uliwonse mu osakaniza akhoza kusanthula mwamsanga.
Ma sensor a gasi a infrared amagwiritsidwa ntchito kwambiri mu petrochemical, metallurgical industry, migodi yogwirira ntchito, kuyang'anira kuwonongeka kwa mpweya komanso kuzindikira kokhudzana ndi carbon neutralization, ulimi ndi mafakitale ena.Pakadali pano, ma laser apakati a infrared ndi okwera mtengo.Ndikukhulupirira kuti m'tsogolomu, ndi mafakitale ambiri omwe amagwiritsa ntchito masensa a infrared kuti azindikire gasi, masensa a gasi a infrared adzakhala abwino kwambiri komanso otsika mtengo.
2. Muyeso wa Distance wa Infrared
Infuraredi kuyambira kachipangizo ndi mtundu wa chipangizo chozindikira, ndi kugwiritsa ntchito infuraredi ngati sing'anga dongosolo muyeso, lonse muyeso osiyanasiyana, yochepa kuyankha nthawi, makamaka ntchito sayansi yamakono ndi luso, chitetezo dziko ndi mafakitale ndi ulimi minda.
Infuraredi kuyambira kachipangizo ali ndi awiri infuraredi chizindikiro kufalitsa ndi kulandira diodes, ntchito infuraredi kuyambira kachipangizo kuti amatulutsa mtengo wa infuraredi kuwala, kupanga ndondomeko chionetsero pambuyo irradiating kwa chinthu, kusonyeza kuti kachipangizo pambuyo kulandira chizindikiro, ndiyeno ntchito CCD. kukonza zithunzi kulandira kutumiza ndikulandila data yosiyana nthawi.Mtunda wa chinthucho umawerengedwa pambuyo pokonza ndi purosesa ya chizindikiro.Izi zitha kugwiritsidwa ntchito osati pamawonekedwe achilengedwe, komanso pamapulogalamu owunikira.Kuyeza mtunda, kuyankha kwafupipafupi, koyenera kumadera ovuta a mafakitale.
3. Kutumiza kwa Infrared
Kutumiza kwa data pogwiritsa ntchito masensa a infrared kumagwiritsidwanso ntchito kwambiri.Chiwongolero chakutali cha TV chimagwiritsa ntchito ma infrared transmission sign to control remotely TV;Mafoni am'manja amatha kutumiza deta kudzera pa infrared transmission.Awa ndi mapulogalamu omwe akhalapo kuyambira pomwe ukadaulo wa infrared unapangidwa koyamba.
4. Chithunzi cha Infrared Thermal
Thermal imager ndi kachipangizo kakang'ono kamene kamatha kujambula ma radiation a infrared opangidwa ndi zinthu zonse zomwe kutentha kwake kumakhala kopitilira ziro.Chojambula chotenthetsera poyamba chinapangidwa ngati chida choyang'anira asilikali ndi masomphenya a usiku, koma pamene chinayamba kugwiritsidwa ntchito kwambiri, mtengowo unatsika, motero kukulitsa kwambiri gawo la ntchito.Ntchito zofanizira zotenthetsera zikuphatikiza nyama, zaulimi, zomanga, kuzindikira mpweya, ntchito zamafakitale ndi zankhondo, komanso kuzindikira kwa anthu, kutsatira ndi kuzindikira.M'zaka zaposachedwa, chithunzi cha infrared thermal chakhala chikugwiritsidwa ntchito m'malo ambiri opezeka anthu ambiri kuyeza kutentha kwazinthu mwachangu.
5. Infrared Induction
Kusintha kwa infrared induction switch ndi njira yodziwongolera yokha yotengera ukadaulo wa infrared induction.Imazindikira ntchito yake yodzilamulira yokha pozindikira kutentha kwa infuraredi komwe kumachokera kunja.Imatha kutsegula nyali mwachangu, zitseko zokha, ma alarm oletsa kuba ndi zida zina zamagetsi.
Kupyolera mu lens ya Fresnel ya sensa ya infrared, kuwala kwa infrared komwe kumatulutsidwa ndi thupi la munthu kumatha kuzindikirika ndi chosinthira, kuti muzindikire ntchito zosiyanasiyana zowongolera zokha monga kuyatsa.M'zaka zaposachedwa, ndi kutchuka kwa nyumba yanzeru, zowonera patali zakhala zikugwiritsidwanso ntchito mu zinyalala zanzeru, zimbudzi zanzeru, masiwichi anzeru, zitseko zolowera ndi zinthu zina zanzeru.Ma infrared sensing sikuti amangomva anthu, koma amasinthidwa pafupipafupi kuti akwaniritse ntchito zambiri.
Mapeto
M'zaka zaposachedwa, msika wapaintaneti wazinthu wakula mwachangu ndipo uli ndi chiyembekezo chamsika waukulu.Munthawi imeneyi, msika wa infrared sensor wakulanso.Chifukwa chake, msika waku China wa infrared detector ukupitilira kukula.Malinga ndi deta, mu 2019, msika waku China wa infrared detector kukula pafupifupi ma yuan 400 miliyoni, pofika 2020 kapena pafupifupi ma yuan 500 miliyoni.Kuphatikizidwa ndi kufunikira kwa kuyeza kwa kutentha kwa infrared kwa mliri ndi kusamalidwa kwa kaboni pakuzindikira gasi wa infrared, kukula kwa msika wa masensa a infrared kudzakhala kwakukulu mtsogolo.
Nthawi yotumiza: May-16-2022