Blackbody furnace kev loj hlob keeb kwm

Blackbody furnace kev loj hlob keeb kwm

Blackbody pib tsim lub cev kub kub. Raws li thaum ntxov xyoo 1950, vim yog siv optical pyrometers, lub Soviet Union thiab Britain thaum lub sij hawm ntawd tau tsim blackbody furnaces nrog lub siab tshaj plaws khiav hauj lwm kub ntawm 2500 degree. Nyob rau xyoo 1960, Nyiv tau tsim cov kab rov tav blackbody rauv nrog qhov siab tshaj plaws ua haujlwm kub ntawm 2200 degree; nyob rau hauv tib lub xyoo, kuv lub teb chaws kuj tsim ib tug kab rov tav blackbody rauv nrog ib tug ua hauj lwm kub ntawm 900-3200 degree .

Nyob rau xyoo 1960, qee cov neeg tau pib kawm lub cev kub nruab nrab. Vim yog cov kev txwv ntawm cov txheej txheem ntawm lub sijhawm ntawd, lawv tsis paub txaus txog lub cev dub thev naus laus zis (xws li lub cev dub kab noj hniav, isothermal dub lub cev kab noj hniav, lub cev dub emissivity, thiab lwm yam), thiab txawm muab tso rau hauv lub thermocouple pov thawj qhov cub. nruab nrab. Lub hom phiaj yog pom raws li lub cev dub.

Txij li thaum Tebchaws Meskas tau siv thev naus laus zis thev naus laus zis hauv Nyab Laj Tsov Rog Nyab Laj thiab ua tiav qhov kev tshawb nrhiav Ho Chi Minh Trail hauv hav zoov ntom ntom (ceeb toom: Txoj Kev Ho Chi Minh Trail yog txoj kab tsheb thauj mus los thaum lub sijhawm ntawd), nws tau qhib lub prelude rau kev siv tub rog. infrared technology. Tom qab ntawd, ntau lub teb chaws tau ua haujlwm tshawb fawb txog cov thev naus laus zis xws li infrared reconnaissance, infrared camouflage, infrared taw qhia, infrared decoys, thiab huab cua tiv thaiv, uas tau txhawb kev tshawb fawb ntawm blackbody technology, tshwj xeeb tshaj yog nyob rau nruab nrab thiab qis kub blackbody. Yog li ntawd, cov teb chaws txawv teb chaws tau muaj qhov kub thiab txias ntawm lub cev dub hauv xyoo 1980s. Kev tshawb fawb txog qhov kub thiab txias ntawm lub cev dub hauv kuv lub tebchaws tau pib thaum xyoo 1990.

Nyob rau hauv 30 xyoo dhau los, infrared technology tau dav siv nyob rau hauv pej xeem daim ntaub ntawv, xws li infrared resource satellites, infrared huab cua satellites, infrared cua sov, infrared drying, kho mob infrared, infrared ntsuas kub, thiab lwm yam nyob rau tib lub sij hawm, kev tshawb fawb ntawm pej xeem blackbody. cov khoom tau pib. Tshwj xeeb tshaj yog nyob rau hauv 20 xyoo dhau los, kev siv dav siv cov ntsuas kub infrared tau nce kev lag luam xav tau rau lub cev dub ua cov cuab yeej tseem ceeb rau kev ntsuas ntsuas kub infrared, uas tau txhawb kev nce qib ntawm lub cev dub thev naus laus zis rau kev lag luam.

Kev tshawb fawb ntawm blackbody technology, tshwj xeeb tshaj yog kev txhim kho ntawm blackbody emissivity technology, tau mus tsis tu ncua txij li thaum 1950s. Qee lub tsev kawm ntawv hauv tsev tau tshawb fawb txog qhov emissivity ntawm blackbody, thiab raws li lub hauv paus ntsiab lus ntawm hluav taws xob hluav taws xob hloov hluav taws xob, tsim ib txheej ntawm kev suav cov txheej txheem rau emissivity ntawm blackbody khoom nyob rau lub sij hawm ntawd. Nyob rau tib lub sijhawm, rau lub cev cylindrical dub lub cev kab noj hniav, qhov sib piv ntawm qhov ntev ntawm cov kab noj hniav mus rau lub qhov ncauj ntawm cov kab noj hniav (hu ua qhov sib piv-rau-kab noj hniav) yog ib qho qauv ruaj. Nyob rau hauv 1998, nyob rau hauv txoj kev tshawb fawb ntawm lub teb chaws tiv thaiv metrology, cov kws txawj siv lub hauv paus ntsiab lus ntawm hluav taws xob hluav taws xob hloov hluav taws xob raws li isothermal thiab diffuse reflection los muab ib tug tshiab xam mis nyuj rau blackbody emissivity, uas theoretically ua pov thawj tias ntev li ntev raws li lub puab nto kub ntawm lub blackbody. kab noj hniav Uniform thiab diffuse reflection. Lub emissivity ntawm lub cev dub tsuas yog cuam tshuam rau qhov sib piv ntawm cov kab noj hniav qhib qhov chaw mus rau sab hauv ntawm lub cev dub, thiab emissivity ntawm sab hauv ntawm lub cev dub kab noj hniav. Nws tsis muaj dab tsi ua nrog cov duab ntawm lub cev dub thiab qhov kub ntawm lub cev dub. Txoj kev xav tau ua rau txoj kev tshawb fawb ntawm blackbody emissivity txoj kev xav ib kauj ruam tom ntej, thiab tib lub sij hawm muaj kev taw qhia tseem ceeb rau kev txhim kho thiab tsim cov blackbody.

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