Bandpass, Longpass, Shortpass – Ba za a iya bambance su ba? Duk abin da kuke buƙatar sani game da Zaɓin Tace Infrared

Wani ƙwararren mai siye wanda ba a saba gani ba a wannan fanni ya taɓa ba mu labari. Ƙungiyarsu tana ƙirƙirar na'urar auna zafin jiki ta infrared. Sun zaɓi matatar longpass. A lokacin gyara kurakurai, sun sami martani mara kyau ga tsangwama na gajeren zango. Makonni biyu na duba lambar bayan haka, a ƙarshe sun gano matsalar zuwa matatar. Abin da suke buƙata a zahiri shine bandpass, ba longpass ba.

Makonni biyu.

Wannan nau'in kuskuren yana faruwa sau da yawa a wannan masana'antar fiye da yadda yawancin mutane ke son yarda da shi. Dalilin abu ne mai sauƙi: sautin bandpass, longpass, da shortpass iri ɗaya ne, amma bambance-bambancen aikinsu na asali ne. Ku yi kuskure a matakin zaɓe, kuma tsarin gyara kurakurai yana biyan kuɗin.

Wannan labarin ya yi bayani game da ma'anar da ke tattare da dukkan nau'ikan guda uku, kuma ya amsa kaɗan daga cikin tambayoyin da aka fi yi yayin zaɓar matattara.

Menene Matatar Longpass, kuma Yaushe Kake Amfani Da Ita?

A matatar wucewa mai tsawo yana watsa haske ne kawai tare da tsawon tsayi fiye da wani wuri na yankewa. Duk hasken da tsawon tsayi ya fi guntu fiye da yankewa an toshe shi.

Ga misali mai ƙarfi: matattarar wucewa mai tsawon zango na 700nm tana toshe duk hasken da ake iya gani a ƙasa da 700nm, yayin da take watsa hasken infrared da na tsakiya zuwa nesa sama da 700nm.

Wannan nau'in matattara ya dace da aikace-aikace inda ake buƙatar toshe duk hasken gajere kuma a bar tsawon tsayin raƙuman ruwa ya wuce kyauta. Mafi yawan amfani da yanayin shine a ƙarshen gaban tsarin ɗaukar hoto na zafi - infrared mai tsawon raƙuman ruwa 8-14μm yana buƙatar isa ga na'urar ganowa, yayin da hasken da ake iya gani da kuma hasken da ke kusa da infrared ba a so su gaba ɗaya. Matattara mai tsawon wucewa guda ɗaya tana magance matsalar da tsari mai sauƙi.

Jerin dogon zango na MULTI IR ya ƙunshi layuka da yawa na yankewa daga kusa da infrared zuwa tsakiyar-da-nesa-infrared, tare da jigilar kayayyaki masu ɗorewa a cikin hoton zafi, pyrometers, gano wuta, da sauran aikace-aikace.

Duk da haka, longpass yana da iyaka bayyananne: yana toshe gajerun raƙuman ruwa ne kawai. Ba ya toshe dogon raƙuman ruwa. Idan tsarin ku yana da tsangwama daga tsawon raƙuman ruwa fiye da madaurin da kuke so, matatar longpass ba za ta iya magance shi ba. Nan ne bandpass ke shigowa.

Menene Matatar Gajere? Layukan Amfaninta Ba Su Da Ƙaranci Fiye Da Yadda Za Ku Yi Tunani Ba

A matatar wucewa ta gajarta yana yin akasin longpass - yana watsa haske ne kawai tare da raƙuman raƙuman da suka fi guntu fiye da wurin yankewa, yayin da yake toshe duk tsawon raƙuman raƙuman.

A cikin yankin infrared, matatun gajerun hanyoyin wucewa ba a amfani da su sosai fiye da longpass ko bandpass. Yanayin da ya fi yawa shine lokacin da tsarin ke buƙatar ware radiation infrared gaba ɗaya sama da wani tsawon rai yayin da yake adana sigina a cikin gajeren zango. Misali, wasu tsarin kyamara masu haske waɗanda ke buƙatar ƙin yarda da kusan infrared suna amfani da matatun gajerun hanyoyin wucewa don toshewa.

Babban darajar hanyar wucewa ta shortpass shine tana toshe dogayen raƙuman ruwa. Idan buƙatarka ita ce kawar da dukkan haske sama da wani takamaiman tsawon raƙuman ruwa, hanyar wucewa ta shortpass ita ce zaɓi mafi sauƙi.

Menene Tace Bandpass, kuma Me Yasa Ya Fi Amfani Da Shi a Aikace-aikacen Sensing Infrared?

A matatar wucewa ta bandeji yana da gefen yankewa na ƙasa da na sama - yana watsa haske ne kawai a cikin takamaiman kewayon tsawon rai, yayin da yake toshe gajerun raƙuman rai da tsayi.

Wannan "kewayen zango" shine madaurin watsawa. Ana bayyana madaurin watsawa ta wurin farawa da ƙarewa. Misali, madaurin watsawa daga 3000nm zuwa 5000nm, tare da duk gajerun raƙuman ruwa da aka toshe, matatar wucewa ce. A cikin masana'antar, samfuran da ke da rabon bandwidth-zuwa-tsakiya-wavelength fiye da 5%-20% galibi ana kiransu matatun watsawa. Misali, matatun watsawa mai tsakiya a 850nm tare da rabin bandwidth na 40nm yana ba da damar kusan kewayon 830-870nm kawai su wuce, yayin da suke toshe komai.

Matatun Bandpass su ne aka fi amfani da su a na'urar gane infrared saboda yawancin aikace-aikacen ji suna da buƙatu ɗaya gama gari: siginar da ke fitowa daga zangon tsayin da aka yi niyya kawai ake buƙata - duk wani abu kuma ana ƙin yarda da shi.

Gano iskar gas yana buƙatar kawai kololuwar shaƙar iskar gas da ake nufi. Gano fuska kusa da infrared yana buƙatar kawai madaurin fitar da hayaki na mai haskakawa. Madaurin fitar da laser yana buƙatar takamaiman tsawon fitar da hayaki na laser. Lokacin tashi yana buƙatar ƙaramin madaurin da ya dace da bugun da aka watsa. Babu ɗayan waɗannan yanayin da aka gamsu da "toshe gefe ɗaya kawai." Suna buƙatar a toshe ɓangarorin biyu, a bar madaurin da ake nufi kawai.

Shin Tace Narrowband Rukuni ne daban? Ta Yaya Yake Da Alaƙa Da Bandpass?

A Matatar wucewa mai kunkuntar asali wani ɓangare ne na matatun bandpass. Bambancin kawai shine faɗin band ɗin watsawa.

A cikin masana'antar, samfuran da ke da rabon bandwidth-zuwa-tsakiya-wavelength na ƙasa da 1%-5% gabaɗaya ana kiransu matatun narrowband. Duk da haka, wannan iyaka ba ma'aunin masana'antu ba ne - ma'anar "narrowband" ya bambanta tsakanin masu samar da kayayyaki. Lokacin zaɓa, koyaushe duba takamaiman ƙimar FWHM (Full Width a Rabin Matsakaici), ba kawai sunan ba.

Ana amfani da matatun Narrowband a aikace-aikacen da ke buƙatar tsarkin tsayi mai yawa: keɓewar tashoshi a cikin sadarwa ta laser, zaɓin kololuwar sha a cikin gano iskar gas, da kuma rabuwar raƙuman motsi da fitarwa a cikin gano hasken haske. A cikin waɗannan yanayi, barin ƙarin nanometers na hasken da ba ya cikin band zai gurɓata siginar. Narrowband shine kawai zaɓi mai yiwuwa.

Matatun infrared na MULTI IR an ƙera su ne da juriyar tsayin tsakiya a cikin ± 2nm - matakin daidaito wanda aka tabbatar a cikin gano iskar gas da aikace-aikacen laser.

Yadda Ake Gane Nau'in Da Ake Bukata Cikin Sauri

Yi wa kanka tambayoyi uku - hakan ya isa.

1. Shin ina buƙatar toshe gefe ɗaya ko ɓangarorin biyu?

Idan kawai kuna buƙatar toshe gajerun raƙuman ruwa, zaɓi longpass. Idan kawai kuna buƙatar toshe dogon raƙuman ruwa, zaɓi shortpass. Idan kuna buƙatar toshe ɓangarorin biyu, zaɓi bandpass.

2. Yaushe faɗin siginar da nake nufi yake?

Idan madaurin da kake son amfani da shi ya yi faɗi sosai (misali, dukkan madaurin tsakiyar infrared mai tsawon 8-14μm), broadband ko longpass na iya wadatarwa. Idan madaurin da kake son amfani da shi ya yi ƙanƙanta sosai (misali, kololuwar shaƙar CO₂ 4.26μm), ana buƙatar madaurin naɗaɗɗe.

3. Akwai hanyoyin tsangwama a kowane gefen ƙungiyar da nake son shiga?

Idan eh, bandpass shine kawai nau'in da zai iya magance tsangwama daga ɓangarorin biyu a lokaci guda - babu longpass ko shortpass da zasu iya yin hakan.

Da zarar ka amsa waɗannan tambayoyi uku, ainihin ana tantance nau'in matattara. Sauran aikin, bayan tabbatar da nau'in, shine a ayyana takamaiman tsawon tsakiya, bandwidth, da sigogin zurfin toshewa bisa ga ƙarfin tushen tsarin ku, ƙarfin na'urar ganowa, da kuma daidaiton gano manufa.

Tambaya Daya Da Ke Tasowa Sau Da Yawa:

Ga irin wannan zangon tsayi, bandandpass ya fi tsada fiye da longpass - me yasa? Daga ina ƙarin kuɗin yake fitowa?

Ya samo asali ne daga sarkakiyar rufin.

Wucin gadi yana buƙatar ƙirar shafi a gefen yankewa ɗaya kawai - mai sauƙi. Wucin gadi yana buƙatar sarrafa matsayi da gangaren gefuna biyu a lokaci guda, tare da ƙarin yadudduka na rufi da buƙatu mafi girma akan kwanciyar hankali na kayan shafa da sarrafa tsari. Yayin da girman bandwidth ɗin ya yi ƙasa, haka ƙirar murfin ke da wahala - adadin layuka na iya kaiwa da dama ko ma ɗaruruwa, kuma buƙatun yanayin ɗakin injin tsabtacewa suna buƙatar matakan da ke buƙatar matakan kariya.

Don haka idan ka ga matattara guda biyu masu farashi daban-daban, kada ka yi tsalle zuwa ga ƙarshe game da cewa ɗaya ya yi tsada. Da farko ka duba nau'in da kuma bandwidth - waɗannan sigogi guda biyu kaɗai suna bayyana mafi yawan bambancin farashi.

Bandpass, longpass, da shortpass ba 'yan'uwa uku ba ne masu sunaye iri ɗaya. Su mafita ne guda uku daban-daban na gani don matsaloli uku daban-daban. Fahimci iyakokin kowane nau'i, kuma ba za ku yi kuskure ba wajen zaɓar matattara.

Idan har yanzu ba ka da tabbas game da wacce matattarar da za ka zaɓa, ko kuma idan kana da sigogin tsarin da kake son duba su, tuntuɓi ƙungiyar fasaha ta MULTI IR. Muna da cikakkun jerin kayayyaki masu rufe bandpass, longpass, da shortpass - daga kusa-infrared zuwa tsakiyar-da-nesa-infrared - kuma muna tallafawa ƙayyadaddun bayanai na musamman tare da lanƙwasa na spectral da aka auna.

MULTIR
Matatun infrared masu cikakken tsari, narrowband, longpass, da shortpass suna cikin ajiya - suna rufe dukkan bakan daga kusa-infrared zuwa tsakiyar-da-nesa-infrared. Akwai nau'ikan abubuwan haɗin infrared sama da 10,000.
Manyan kasashe 3 a duniya a fannin cikakken ƙarfi.
Kamfanin "Ƙaramin Babba" na ƙasa mai ƙwarewa da ƙwarewa.

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