Cummins zafin jiki da matsi na firikwensin ƙararrawar ƙararrawa 4921479

Mara lamba

Abubuwan da ke da hankali ba sa hulɗa da abin da aka auna, wanda kuma ake kira kayan auna zafin jiki mara lamba. Ana iya amfani da wannan kayan aiki don auna yanayin zafin jiki na abubuwa masu motsi, ƙananan maƙasudi da abubuwa masu ƙananan ƙarfin zafi ko saurin canjin zafin jiki (mai wucewa), kuma ana iya amfani dashi don auna yawan zafin jiki na filin zafin jiki.

Mafi yawan amfani da ma'aunin zafi da sanyio mara lamba yana dogara ne akan ainihin ka'idar radiation na blackbody kuma ana kiransa thermometer radiation. Ma'aunin zafin jiki na Radiation ya haɗa da hanyar haske (duba pyrometer na gani), hanyar radiation (duba pyrometer radiation) da hanyar launi (duba ma'aunin zafi da sanyio). Duk nau'ikan hanyoyin thermometry na radiation suna iya auna madaidaicin zafin jiki na photometric, zafin radiation ko zazzabi mai launi. Matsakaicin zafin jiki da aka auna don baƙar fata (wani abu mai ɗaukar duk radiation amma baya nuna haske) shine ainihin zafin jiki. Idan kuna son auna ainihin zafin abu, dole ne ku gyara fitar da saman abu. Duk da haka, da surface watsi na kayan dogara ba kawai a kan zafin jiki da kuma zango, amma kuma a kan surface jihar, shafi da kuma microstructure, don haka yana da wuya a auna daidai. A cikin samarwa ta atomatik, sau da yawa ya zama dole a yi amfani da ma'aunin zafi da sanyio don auna ko sarrafa yanayin zafin saman wasu abubuwa, kamar zafin jiki mai jujjuyawa na karfe, yanayin jujjuyawar zafi, zafin ƙirƙira da zafin narkakkar ƙarfe iri-iri a cikin tanderun da ke narkewa ko crucible. A cikin waɗannan ƙayyadaddun lokuta, yana da matukar wahala a auna fitar da abin da ke cikin abu. Don aunawa ta atomatik da sarrafa ingantaccen zafin jiki, ana iya amfani da ƙarin abin tunani don samar da rami mai baƙar fata tare da auna saman. Tasirin ƙarin radiation zai iya inganta ingantacciyar radiyo da ingantacciyar ƙima ta fuskar da aka auna. Yin amfani da ƙididdiga masu tasiri mai tasiri, ana daidaita ma'aunin zafin jiki ta kayan aiki, kuma a ƙarshe za'a iya samun ainihin zafin jikin da aka auna. Mafi kyawun ƙarin madubi shine madubi na hemispherical. Za'a iya nuna hasken da aka auna na farfajiyar da aka auna kusa da tsakiyar ƙwallon ƙafa ta hanyar madubi na hemispherical don samar da ƙarin radiation, don haka inganta haɓakaccen haɓakaccen haɓaka mai tasiri, inda ε shine fitarwa na kayan abu kuma ρ shine abin nunawa. na madubi. Dangane da ma'aunin radiation na ainihin zafin iskar gas da kafofin watsa labarai na ruwa, ana iya amfani da hanyar shigar da bututun abu mai jure zafi zuwa wani zurfin da zai samar da rami mai baki. Ingantacciyar ƙididdigewa mai tasiri na kogin cylindrical bayan ma'auni na thermal tare da matsakaici ana samun su ta hanyar lissafi. A cikin aunawa da sarrafawa ta atomatik, ana iya amfani da wannan ƙimar don gyara ma'aunin zafin ƙasa na rami (wato, matsakaicin zafin jiki) da samun ainihin zazzabi na matsakaici.

Amfanin ma'aunin zafin jiki mara lamba:

Madaidaicin ma'auni ba'a iyakance shi ta yanayin jurewar zafin jiki na abubuwan gano zafin jiki ba, don haka babu iyaka ga mafi girman ma'aunin zafin jiki bisa manufa. Don yawan zafin jiki sama da 1800 ℃, ana amfani da hanyar auna zafin da ba ta sadarwa ba. Tare da haɓaka fasahar infrared, ma'aunin zafin jiki na radiation a hankali ya faɗaɗa daga hasken da ake iya gani zuwa hasken infrared, kuma an yi amfani da shi ƙasa da 700 ℃ zuwa zafin jiki tare da babban ƙuduri.