Txoj Cai Ua Haujlwm thiab Kev Siv Infrared Thermometer
1 Txheej txheem cej luam
Hauv cov txheej txheem tsim khoom, infrared ntsuas kub ntsuas tshuab ua lub luag haujlwm tseem ceeb hauv kev tswj xyuas cov khoom zoo thiab kev saib xyuas, cov khoom siv hauv online tsis raug kuaj xyuas thiab kev tiv thaiv, thiab txuag hluav taws xob. Hauv 20 xyoo dhau los, cov ntsuas kub tsis sib cuag infrared tau tsim sai hauv kev siv thev naus laus zis, lawv cov kev ua tau zoo tsis tu ncua, lawv cov dej num tau raug txhim kho tsis tu ncua, lawv cov ntau yam tau nce ntxiv, lawv cov peev txheej ntawm daim ntawv thov kuj tseem txuas ntxiv mus, thiab lawv cov kev ua tau zoo. kev sib koom ua lag luam tau nce xyoo los ntawm xyoo. Piv nrog rau kev ntsuas kub ntawm kev sib cuag, kev ntsuas kub infrared muaj qhov zoo ntawm lub sijhawm teb ceev, tsis sib cuag, siv kev nyab xeeb thiab kev pab lub neej ntev. Tsis tiv tauj infrared ntsuas kub muaj xws li peb series ntawm portable, on-line thiab scanning, thiab yog nruab nrog ntau yam kev xaiv thiab computer software, thiab txhua series muaj ntau yam qauv thiab specifications. Ntawm cov qauv ntau yam ntawm cov ntsuas kub nrog cov kev qhia tshwj xeeb, nws yog ib qho tseem ceeb heev rau cov neeg siv los xaiv cov qauv ntawm cov ntsuas kub infrared.
Infrared detection technology yog ib txoj haujlwm tseem ceeb ntawm kev tshawb fawb thiab thev naus laus zis hauv lub tebchaws thaum lub sijhawm "Ninth Five-Year Plan". Lub emission infrared (infrared radiation) qhia nws cov duab thermal ntawm lub vijtsam fluorescent, yog li txiav txim siab qhov ntsuas kub ntawm cov khoom nto, uas muaj qhov zoo ntawm qhov tseeb, lub sijhawm, thiab ceev. Vim lub zog ntawm nws tus kheej molecules, txhua yam khoom tsis tu ncua radiates infrared tshav kub zog sab nraud, yog li tsim ib tug tej yam kub thiab txias nyob rau saum npoo ntawm cov khoom, feem ntau hu ua "thermal duab". Infrared diagnostic thev naus laus zis absorbs lub zog hluav taws xob hluav taws xob no los ntsuas qhov ntsuas kub ntawm cov khoom siv saum npoo thiab kev faib tawm ntawm qhov ntsuas kub, thiaj li txiav txim siab qhov cua sov ntawm cov khoom siv. Tam sim no, muaj ntau yam khoom siv kuaj uas siv cov cuab yeej ntsuas infrared, xws li infrared thermometer, infrared thermal TV, infrared thermal imager thiab lwm yam. Cov khoom siv xws li infrared thermal TVs thiab infrared thermal imaging koob yees duab siv cov thev naus laus zis thev naus laus zis los hloov qhov pom tsis tau "thermal duab" rau hauv cov duab pom lub teeb, ua rau cov txiaj ntsig kev sim intuitive, siab rhiab heev, thiab muaj peev xwm txheeb xyuas qhov hloov maj mam hloov hauv lub xeev thermal ntawm lub teeb pom kev zoo. cov cuab yeej siv thiab ua kom pom tseeb Cov cua sov sab hauv thiab sab nraud ntawm cov cuab yeej muaj kev ntseeg siab thiab muaj txiaj ntsig zoo hauv kev tshawb pom qhov tsis zoo ntawm cov khoom siv.
Infrared diagnostic thev naus laus zis tuaj yeem ua kom ntseeg tau qhov kev twv ua ntej rau kev ua tsis tiav thaum ntxov thiab kev rwb thaiv tsev ntawm cov khoom siv hluav taws xob, thiab txhim kho kev tiv thaiv kev tiv thaiv ntawm cov khoom siv hluav taws xob ib txwm muaj (kev ntsuas kev tiv thaiv yog tus qauv qhia hauv lub qub Soviet Union xyoo 1950) rau kev kwv yees lub xeev kev saib xyuas, uas tseem yog lub tshuab hluav taws xob niaj hnub. Kev taw qhia ntawm kev txhim kho kev lag luam. Tshwj xeeb tshaj yog tam sim no hais tias txoj kev loj hlob ntawm cov loj units thiab ultra-high voltage tau muab tso rau pem hauv ntej ntau dua thiab ntau dua yuav tsum tau rau lub txhim khu kev qha kev khiav hauj lwm ntawm lub hwj chim system, uas muaj feem xyuam rau lub stability ntawm lub hwj chim daim phiaj. Nrog rau kev txhim kho txuas ntxiv thiab kev loj hlob ntawm kev tshawb fawb niaj hnub thiab thev naus laus zis, kev siv lub xeev infrared soj ntsuam thiab tshuaj ntsuam xyuas cov cuab yeej muaj cov yam ntxwv ntawm kev ncua deb, tsis muaj kev sib cuag, tsis muaj qauv, tsis muaj disassembly, thiab muaj cov yam ntxwv ntawm qhov tseeb, ceev, thiab intuition, thiab tuaj yeem saib xyuas thiab kuaj xyuas cov khoom siv hluav taws xob online hauv lub sijhawm. Feem ntau ntawm qhov tsis raug (yuav luag tuaj yeem npog qhov kev tshawb pom ntawm ntau yam tsis raug ntawm txhua yam khoom siv hluav taws xob). Nws tau txais kev saib xyuas ntau los ntawm kev lag luam hluav taws xob hauv tsev thiab txawv teb chaws (qhov kev kho mob siab heev-raws li kev saib xyuas siv dav hauv txawv teb chaws thaum xyoo 1970s), thiab tau tsim sai heev. Kev siv thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis yog qhov tseem ceeb los txhim kho kev ntseeg tau thiab kev ua tau zoo ntawm cov khoom siv hluav taws xob, txhim kho cov txiaj ntsig kev lag luam ntawm kev lag luam, thiab txo cov nqi tu. Nws yog ib txoj hauv kev zoo heev uas tau nthuav dav hauv thaj chaw ntawm kev kwv yees kev saib xyuas tam sim no, thiab nws tuaj yeem nce qib kev saib xyuas thiab kev noj qab haus huv ntawm cov cuab yeej mus rau qib siab dua.
Infrared imaging tshuab siv tau los ua qhov tsis sib cuag ntawm cov khoom siv khiav, yees duab faib ntawm nws qhov kub thiab txias, ntsuas qhov ntsuas kub ntawm txhua qhov, thiab kuaj xyuas ntau yam kev ua txhaum sab nraud thiab sab hauv raws li lub sijhawm, telemetry, intuitive. thiab quantitative Nrog rau qhov zoo ntawm kev ntsuas kub, nws yog qhov yooj yim heev thiab siv tau los xyuas cov khoom siv ua haujlwm thiab cov khoom siv nyob ntawm cov fais fab nroj tsuag, substations thiab kis kab.
Tus txheej txheem ntawm kev siv lub thermal imager los ntes cov khoom siv hluav taws xob hauv online yog qhov ntsuas kub infrared. Infrared kub kaw txoj kev yog ib tug tshiab technology siv nyob rau hauv kev lag luam rau tsis-destructive nrhiav kom tau, kuaj cov cuab yeej kev ua tau zoo thiab mastering nws cov kev khiav hauj lwm raws li txoj cai. Piv nrog rau cov txheej txheem ntsuas kub ib txwm muaj (xws li cov thermocouples, cov ntaub ntawv siv quav ciab nrog cov ntsiab lus sib txawv, thiab lwm yam. muab tso rau ntawm qhov chaw lossis lub cev ntawm cov khoom ntsuas), lub thermal imager tuaj yeem kuaj xyuas qhov kub ntawm qhov kub ntawm lub sijhawm, ntau npaum li cas, thiab online nyob rau hauv ib qho kev ncua deb. , Nws kuj tseem tuaj yeem kos cov duab kub gradient thermal ntawm cov khoom siv hauv kev ua haujlwm, thiab nws muaj rhiab heev thiab tsis cuam tshuam los ntawm electromagnetic teb, yog li nws yooj yim rau kev siv ntawm qhov chaw. Nws tuaj yeem kuaj xyuas cov khoom siv hluav taws xob tsis zoo ntawm cov khoom siv hluav taws xob nrog qhov kev daws teeb meem siab ntawm 0.05 degree nyob rau hauv ntau yam ntawm -20 degree mus rau 2000 degree, nthuav tawm xws li cua sov ntawm cov hlau txuas lossis clamps, thiab hauv zos kub. cov chaw hauv cov khoom siv hluav taws xob, thiab lwm yam.
Infrared diagnostic technology ntawm cov cuab yeej nyob yog ib qho kev kawm tshiab. Nws yog cov cuab yeej siv dav dav uas siv cov cua kub ntawm cov khoom siv, siv cov cuab yeej tshwj xeeb kom tau txais cov ntaub ntawv hluav taws xob infrared tawm ntawm qhov chaw ntawm cov khoom siv, thiab tom qab ntawd txiav txim rau cov xwm txheej ntawm cov khoom siv thiab qhov xwm txheej ntawm qhov tsis xws luag.
2. Infrared yooj yim txoj kev xav
Nyob rau hauv 1672, nws tau pom tias lub hnub ci (dawb lub teeb) yog tsim los ntawm ntau yam xim. Tib lub sijhawm, Newton tau txiav txim siab tias lub teeb monochromatic yog qhov yooj yim dua li lub teeb dawb. Siv lub dichroic prism kom decompose hnub ci (dawb lub teeb) rau hauv monochromatic teeb liab, txiv kab ntxwv, daj, ntsuab, xiav, xiav, ntshav, thiab lwm yam. Nyob rau hauv 1800, tus British physicist FW Huxel nrhiav pom infrared rays thaum nws kawm ntau yam xim xim ntawm lub teeb. thermal point of view. Thaum nws tab tom kawm txog cov cua kub ntawm ntau yam xim ntawm lub teeb, nws txhob txwm thaiv thawj qhov rais ntawm chav tsaus ntuj nrog lub phaj tsaus, thiab qhib lub qhov nyob rau hauv lub phaj, thiab ib tug beam splitter prism tau nruab rau hauv lub qhov. Thaum tshav ntuj dhau los ntawm lub prism, nws yog decomposed mus rau hauv cov xim lub teeb bands, thiab ib tug pas ntsuas kub yog siv los ntsuas cov cua sov uas muaj nyob rau hauv txawv xim nyob rau hauv lub teeb bands. Txhawm rau sib piv nrog qhov kub thiab txias, Huxel siv ntau lub ntsuas kub tso rau ze ntawm lub teeb xim xim raws li cov ntsuas kub sib piv los ntsuas qhov ntsuas kub ntawm qhov chaw. Thaum lub sijhawm sim, nws tau pom qhov tshwm sim txawv txawv: tus pas ntsuas kub tso rau sab nraum lub teeb liab liab muaj tus nqi siab dua li lwm qhov kub hauv chav. Tom qab kev sim thiab ua yuam kev, qhov no hu ua high-temperature zone nrog cov cua sov tshaj plaws yog ib txwm nyob sab nraum lub teeb liab ntawm ntug ntawm lub teeb band. Yog li nws tshaj tawm tias ntxiv rau qhov pom lub teeb, kuj tseem muaj "lub teeb liab" pom tsis tau rau tib neeg lub qhov muag hauv cov hluav taws xob tawm los ntawm lub hnub. Qhov pom tsis pom "lub teeb liab" no nyob sab nraum lub teeb liab thiab hu ua lub teeb infrared. Infrared yog ib yam ntawm electromagnetic yoj, uas muaj tib lub ntsiab lus raws li xov tooj cua tsis thiab pom lub teeb. Qhov kev tshawb pom ntawm infrared yog kev dhia hauv tib neeg kev nkag siab ntawm qhov xwm txheej, thiab nws tau qhib txoj hauv kev tshiab rau kev tshawb fawb, kev siv thiab kev loj hlob ntawm infrared technology.
Lub wavelength ntawm infrared rays nyob nruab nrab ntawm 0.76 thiab 100 μm. Raws li lub wavelength ntau, nws tuaj yeem muab faib ua plaub pawg: ze infrared, nruab nrab-infrared, far-infrared, thiab tsis tshua muaj-infrared. Nws txoj hauj lwm nyob rau hauv qhov nruam spectrum ntawm electromagnetic tsis yog thaj tsam ntawm xov tooj cua tsis thiab pom lub teeb. . Infrared hluav taws xob yog ib qho ntawm cov hluav taws xob hluav taws xob ntau tshaj plaws hauv qhov xwm txheej. Nws yog raws li qhov tseeb tias txhua yam khoom yuav tsim nws tus kheej molecular thiab atomic irregular motions nyob rau hauv ib tug pa ib puag ncig, thiab tsis tu ncua radiate thermal infrared zog, molecules thiab atoms. Lub zog ntau dua, qhov ntau dua lub zog hluav taws xob, thiab rov ua dua, qhov me dua lub zog hluav taws xob.
Cov khoom uas muaj qhov kub siab tshaj xoom yuav tawg cov kab hluav taws xob infrared vim lawv tus kheej molecular motion. Tom qab lub hwj chim teeb liab radiated los ntawm cov khoom yog hloov dua siab tshiab rau hauv ib tug hluav taws xob teeb liab los ntawm lub infrared detector, cov zis teeb liab ntawm lub imaging ntaus ntawv yuav kiag li simulate spatial faib ntawm qhov kub thiab txias ntawm lub scanned khoom ib tug los ntawm ib tug. Tom qab ua tiav los ntawm lub tshuab hluav taws xob, nws raug xa mus rau lub vijtsam zaub thiab tau txais cov duab thermal sib raug rau cov cua sov faib rau saum npoo ntawm cov khoom. Siv cov qauv no, nws muaj peev xwm paub qhov ntev-ntev thermal lub xeev duab duab thiab ntsuas kub ntawm lub hom phiaj thiab tshuaj xyuas thiab txiav txim.
