Na'urar firikwensin iskar gas mara tarwatsewa (NDIR) nau'in na'urar gano iskar gas ce wacce ta dogara da nau'ikan ƙwayoyin iskar gas daban-daban na zaɓin sha don kusa da bakan infrared, ta yin amfani da alaƙa tsakanin maida iskar gas da ƙarfin sha (Lambert-Beer Law) don gano abubuwan haɗin gas. da maida hankali.Idan aka kwatanta da sauran nau'ikan na'urori masu auna firikwensin gas, irin su nau'in electrochemical, nau'in ƙonewa na catalytic da nau'in semiconductor, na'urori masu auna infrared marasa tarwatsewa (NDIR) suna da fa'idodin aikace-aikacen fa'ida, rayuwar sabis mai tsayi, babban hankali, kwanciyar hankali mai kyau, farashi mai inganci, ƙananan farashin kulawa, nazarin kan layi da sauransu.An yi amfani da shi sosai a cikin bincike na iskar gas, kare muhalli, ƙararrawar yabo, amincin masana'antu, likitanci da lafiya, samar da noma da sauran fannoni.
1. Anti-guba, babu ajiyar carbon.Lokacin da firikwensin CAT ya auna wasu iskar gas, yana da sauƙi a ajiye carbon saboda ƙarancin konewa, wanda ke haifar da raguwar ma'auni.Ana kiyaye tushen hasken IR da firikwensin gilashin ko tacewa, kuma kar a tuntuɓar gas, don haka ba za a sami konewa ba.
2. Ba a buƙatar oxygen.NDIR firikwensin gani ne kuma baya buƙatar oxygen.
3. Ma'auni na aunawa zai iya kaiwa 100% v / v. Domin halayen siginar na NDIR firikwensin sune: lokacin da babu iskar gas da za a auna, ƙarfin siginar shine mafi girma, kuma mafi girman ƙaddamarwa, ƙarami siginar.Don haka auna babban taro yana da sauƙi fiye da auna ƙananan ƙididdiga.
4. Kyakkyawan kwanciyar hankali na dogon lokaci da ƙarancin kulawa.Kwanciyar firikwensin NDIR ya dogara da tushen haske.Muddin an zaɓi tushen hasken, kuma ana iya amfani da shi shekaru 2 ba tare da daidaitawa ba
5. Faɗin zafin jiki.Ana iya amfani da NDIR a cikin kewayon -40 ℃ zuwa 85 ℃
