CS271053B1 - Contactless measurement of temperature - Google Patents

Abstract

This solution concerns the method of realisation of a procedure of a contact-free temperature measuring regardless of substance emissivity, i.e. based on radiation pyrometry, while the solution can be used in all fields of the national economy. The purpose thereof is also to permit an application of this method in a high-temperature and low-temperature extent area, where only minimum preconditions and data are necessary. The task rests in determination of the actual temperature of an object being possible even in case of inaccurate knowledge of the emissivity, particularly in cases where the emissivity is non-permanent. The essence thereof lies in the fact that by means of a pyrometric device sensitive to certain spectral areas, input values are received step by step as band signals of measured object radiation without ancillary radiation of the known spectral composition, and thereafter, with such ancillary radiation. These values are then recorded in the PC. The PC connects the input values so that the unknown values, such as the actual temperature of the object, and spectral emissivity are determined by an iterative solution of the non-linear equation system.

Description

1 271 053 (laaoaiiHe 3 3 ι ι ϊ γ ο | |) |

CnOCOR M yCTTOHCTIOT ΠΕΟΚΟΙΙΤΛΚΤΙΙΟΓΟ H3MEPE1IH5I TEMIlEPATypU.

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KpoMe Toro 3iiaxoMU nMpoMepTHHecxHe H3MepHTeabiiue ycTpoRcTBa. KOTopue nocpeacTBOM upoeKuiiHHa OTpameiiHe BcnoMoraTeabtioro HoayMaTe.na nepea HBMepeHHe xoa ** HUHeHTa oTpanteHHH onpeaeaHioTHCTHHHyw TeMnepaTypes. B Taxon caytae ueoexoaHMo uaJitriHe peryaxpiioro oTpaweiiHíl η onpeaeaenHoronocTosiiHoro reoMepTHMecxoro pacnoaomeuHH Mextay niipoMeTpHMecKHM H3MepHTeat »HUM ycTpoRcTnoM.ncnoMoraTOJii.iiUM HoaygaTeaeM η ποββρχηοοττ.ιο llpeaMeTa HOMepemiH. Ho Taxoe ncuio »hHeercxTOJibKo b ΜΧθκοταρΜΧ" lacTiiux cayManx (Tlngvaldt, C.: Ein elnfaches optlsches Verfahren zurdlrekten Ermlttlung vahrer Temperaturen glllhender MetalIe. Z. Metali kunde 31 (1960) 2p. autonatle enlsslvlty sompensated radlatlon pyroraeter, J. Sel.40 ¢ 1963) S. 1-4, Frelsleben R .: Pyrometrische Messungen an GlUhkatoden thread porUser

Oberfiache. Int. Kolloquium der TH Ilmenau <1965). Vortragsrelhe MaBtechnlk. 11. 9. S. 17-23: World: DE-OS 16 48 233. 1972. 42 1. 8 / 6o ... CeeT / Pr-OC 16 48 233. 1972. 42. 8/60 / npeaaaraeT pasaHMHUx negaBHCHMUx ot TeMnepaTypu βθληίηη aan βμρββηηββηηη bjihshihhΚΟ3ΦΦΗΙΙΗβΗΤΟΒ 3MHCCHH H npOnyCKailHH, ΠΡΗΊβΗΗΧΙΤΟΗ HeKOTOpUe CneKTpaabHUe OCJlaCTH. npeajioweimuR cnocoe noaxoaMT tojilko ajia eucoKOTeMnepaTypHoro aHanasona. KoraaHMeeT CHay npH &amp; jiHxteiiHe Dana h hmobtcx aoeTaTouiio μιιογηθ npeaeapHTeabiiue aaimue o oBHBHMocTHKO3 «* HUHeiiTa omhcchh ot ajihhu bojiii. npeaBaptiTe.nt.iiue aaiuiue aoanuiu euTb noaTBepxtaeHiiuMtt HanpeaMeTe. Hiiane BUTexaioT aoxtilue H3MepeiiHH. He paaaHMaeMue xax TaxoBwe / CeeT ·· Imeku VIII. S.13-5 bis S- 13 - 11. According to the Problem of Strahliiiigspyrometrle und Ellen Neue Mlugllehkeitenlltrer Llsung. 1979 /.

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BcnoMoraTejibiioro H3jiy> iaTeJiH bosmoikho ae> aBOMiiasi aBTOMaTHMecKax nojiKajiHepoBKa. 271 054 4 ΠΛΤΕΙΙΤΙΙΛ5Ι ΠΡΕΤΕΙΙ3ΗΗ

1. Cnocoe η ycrpoficTBo ajisi iipouejieHHii cnocoea 3a eeeKOHTaKTiioe. neaaBHCHMoe ot κοοψφηηηοιιτη3MHCCHII ΚΒΜβΡΟΙΙΗΟ ΤβΗΠβρβΤΥΡΜ. ΟΠΙΜΊβΙΟΜΗΟΟίΙ ΤθΜ. N C nCIMOUtbU MyBCTBHTejlblIOro B * ιιοκοτγιρμχ ciieKTpajibiiux oejiacTíix nupoMeTpipiecKoro ycTpoHcTBa nocimOBOBTejibiio πρηιιημβχιτομ iixojuii.imh bOJiHMHHaMH nojioeoBi.ie c

t »cnoMoraTe.Hi> iiUM. HOJiyieimeM HBBOCTanoro ciieKTpaJibiloro cocTaea. OTpaweHHUH to noBepxnocTH npeAMBTčl HBMepeilHa, Η BBOAXTCX BM B * IHCJIHTej | b B KOTOPOM npOHCXOAHT CBS131> IBaHHO TilKHMoepasoM, ίτο cneKTpaJibiiHe OTpawaTejibtiMe ycjtOBHn noBepxnocTH npejiMeTa hbhuppiiiihBUMMCJimOTCM H HCnOJIb3y »TCSI BMeCTC CO BCeMH nOJlOCOBMMH CHdiaJlaMH IiaKonJlOHliMMIIxapaKTt H) | iHcTHKaMM iiojiocobmx cHrna.noB otaijjimimx cneKTpajibiiux oejiacTeR. onpeAeJiemiMMH na'leptiOM HBJíyiaTiajie, xax HanecTiiue oeJiHMmiu chctomm nejiHnennux ypatnienHň, πρηίομ peuieiiHOchctomm ypamioHnň ροΒΟΛΗταίΐ nocpeacTBOH MTepiaío cnocoea and onpeAeJisiioTCSi nenoBecTiibieBejiHMMiiu. kick HCTHiman TexnepaHpeAMeTa h eneKTpaJibiibie κοοφφηιιηοιιτμ omhcchh. 2. Cnocoe no riyiiKTy 1. OTJiHnawiUHRcn tom. ίτο bmocto oTAejibHoro BcnoMoraTejn.noi> ro H3jiyionnsiynoTpefiJinoTcfl nojiyieime OKpyxnioCTH npeAMOTa HOMepeiiHSi and xapaKTePH3y »uiaa ero BeiiHMnna. κηκnanpHMep TexnepaTypes oKpymnocTH. HCiiojiboyeTcsi ββολιιοη βοληίηηοη juisi bmhhcjihtojiíi. and u BMMHCJiHTejio c noMouibn Toro me CBH3MOanmero aJiropHTMa onpeaejisnoTcsi neH3BecTiiue βοληίηιιμ .kbk ncTimiian TeMnepaTypa npeyíMOTa h cneKTpaJu.iibie napaxeTpu omhcchh. 3. Cnocoe no nyiiKTy 1. oTJiHHanuiHftcvi tbm. HsuecTiMe bbjihmhhm, kik «anpHMep κοοφφηιιηβητμOMHCCHH, OTIIOUieilHil ΚΟΟΦΦΗΒΗΟΙΙΤΟΒ 3MHCCHI1 H BaBIICHMOCTH ΚΟΟΦΦΗΙΙΗΟΙΙΤΟΒ 3MHCCHH OT Λ.ΙΙΗΙΙΙ.1 LIOJIII. ElBOJlilTCÍI B BUHHCJIHTeJlb, 4. Cnocoe no nyincTy 1. OTJiHnaiouiHRcít tom. ίτο cBH3UBaiiHe BUMHcjieTejieM προβολητοη τηκημoepaooB, ίτο onpeAeJimoTca h cparniHnaioTCii KamAufi paa OTiiouieiiHíi ηιιτθηοηβηοοτοΒ auvx I iiojiocobmx cHriiaJiOB. ιιρΗΊθΜ b cjiynae ojuuiaKiibmx onpeneJieHHMX TeMnepaType npeaaeTeJiHeTeJiH h o hcthiihoR TeMnepaType npeaMOTa. * 5. Cnocoe no nyiiKTy 1. OTJiHnawuiHRcx tom. ίτο EWiHCJiHTeJib ΠΗροΜθτρΗΊΟοκοΐ'ο ycrpuficTiia aoeaBi ynoTpeeJiíieTiFiLiJiJkJnkkHH ujihíiiihíi TeMnepaTypu Kopnyea. a b cmhbh cdBcnoMoraTejibHMM H3jiy'laTOJieM, c.nywainHM uiipe / tejietinio TeMnepaTypu πρβΛΜβτβ. ynoTpeejiaeTCH uiihaBTOMaTHMecKofi nepeKaJiHepoBKH ιιηρομοτρηίοοκογο ycTpoKcTBa. and 3BMHiiaiiHeHBBeCTHMX H HBMOpeHHMX ΚΟΟΦΦΗΙΙΗΟΗΤΟΒ 3MHCCHM. 6. YctoRctbo juih npoeeaeHHX cnocoea no nyiiKTy t. ί ο......................... H H H H H H H H H H H H H H H ne ne ne ne ne ne ne ne ne ne cocTosnuyio nanpHMep «3 φικπβτροβ hjih πρηβομ hjih hoΑΗΦρΑΚίΙΗΟΙΙΙΙΟΓΟ MOllOXpOMaTOpa. ΡΗΊΡΗΊΙΙΟΜcccpoňcccccccíííííííííííííTTTTTTTTT Bnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnieieieieieieieieieie. KaK lianpHMCip COCTOMIIIHM H3 IleKOTOpMX CJIO6B H? CdTe -AeTeKTOpOM. H SIBJISieTCilCBilBallllUM C BWlHCJIHTOJleM. ΠΡΗΊβΜ BCriOMOCaTOJIblIMR H'JJiy'laTeJlb pacnojlomell TaKHM U6PB3OM, TruriHpoMuTpHMBCKoe ycrpoficTBo npiiiiHMaeT Kpoxe HajiyieiiHsi πρβΑΜβτβ HaMepeiinsi τβκμιο oTpaweimoena Hero HOJiyietiHee BcnoMoraTejivnoro najiy lavejiíi. 7. ycTpoRcTuo no nyiiKiy 6, oTjiH * iaioiuei Ten. ίτο AoeauoMiio coAepwaTcn noKaaanne OTAeJihiiuxnojiocoBux CHriiajioB hjih cooTBeTCTBy »mHx hm TeMnepaH3jiy« ie »iHsi. and TaKwe hx κορρβκιΐΗΜnocpeACTBOM ycTanoBoniioro ojieMeiiTa ajih κοοφφηιιηοητβ smhcchh Ha bucop h nepeKJiionaeMoe oΠΗροΜβτρΗΊυοκοΜ ycTpoficTee. 5,271,053

OBOBIOEIIHE CIIOCOB H yCTPOHCTBO HΛMEPE1IH5I TEMΠΕΡΛΊΎ PU. H3oepeTeiiHe otiiochtch to cnocoey h yc-rpoHcTBy λ-jiíi ripoiie ^ teiiBsi eecKOHTaKTtiora. neaaBHCMMiirciot KO3 <t <řHuneiiTa smhcchh HOMepeHHM TeMnepaType on ocHOFte paaHauHoiiifrjii iiHpoMepTHH. ιιρηίομH3OftpeTeHHe npHHeHMtTCH BO BCBX OTpaCJIIIX ΗΒΡΟΛίΙΟΓΟ XO3SlunCTBa.

Llejibio HriOnpeTeHHSi iiBJinTcsi τα. caejiaTb bo3moh <iium ynoTpeBJiHHe h b BUcoKOTeMnepaTypnoM. hb HH3KOTennepaTypiiOM «Hana-jOHe, πρημβη TpeayeTca MHHHMyx npeaBaPHTejibiiux ycJiOBHH h aainiux.3aaa * ia cootoht b tom. mto onpeae.neiiHe HCTHiuiuň c-Jiynae ηθτοίιιορο βιιβιιηη κο3φφηιιηοιιτβ smhcchh

HenoCTOXHHMM.

CyiUHOCTb H3O «SpeTeHHS« B COCTOHT TOM ΊΤΟ cneKTpaJibiiux oejiacTRX ΠΗροΜβτρΗΜβοκοΓΟ ycTpoňcTBa nocJieflOBoTejibHo npHHHMawTcnBe.nHMHiiaMH no.nocoBue carHaJiu H3.ny'ieiin «npeaHBTa ηβμορθιιηη sea what BcnrjMoraTejibHWM H3.ny h <h ieiiHeMH3BecTiioro cnexTpa.nbiioro cocTaaa nnoaaTcsi uuHHCJiHTe.nb b. nwiHCJiHTejib casiauBaeT BxoaiiueBejiHMHiiu Takhat oepaaoe, Ίτο ΗβΗΒΒβστιΐΜθ BejiHMHHa, KaK HCTHHHax TeMnepaTypa npeaMGTa HcneKTpajihiiue κοοΦΦΗΐίΜβΗΤΜ smhcchh onpejteJinioTcíi ητθρβτηβημμ peuieiixeM CHCTeMU HeJimieňiíMXypariHenHň.

TeMnepaTypu πρβΛΜβτβ οτβΗβτ bo3mo> kiimm h fih / hjih ec-JiH 3τητ KoattHUHeiiT sm-nneTcíi noMOUibn

MyBCTBHTeJlbHOrO ΗβΚΟΤΟΡΜΧ ΒΧΟΛΗΜΜΗ

Claims (7)

271 053 6 OBJECT OF THE INVENTION 1. Method of non-contact temperature measurement independently of emissivity. characterized in that by means of a pyrometric device, which is sensitive in some spectral regions, they sephally receive as input values the band signals of radiation of the measured object by a known spectral composition, and then radiation from an auxiliary radiator reflected on the surface object, whereupon these values are introduced into the computer, where they are guided so as to calculate the differences in spectral reflection conditions of the surface of the object being measured, and these are compared with all the band signals and the stored characteristics of the band signals of the individual spectral regions determined on the black body as known in the system of nonlinear equations, after which the equation systems are solved by the iterative process, where quantities unknown as actual object temperature and spectral values are determined. 2. A process according to claim 1, that the radiation around the object being measured is detected and the quantity that characterizes it, such as the ambient temperature, is introduced as an input to the computer with it. that in a computer, based on the same process algorithm, the bindings are determined for quantities unknown as actual object temperature and emission spectral parameters. 3. A method according to claim 1, characterized in that known quantities are introduced into the computer as, for example, emulsions. emlusion ratios and emissivity dependence on wave length. 4. A method according to claim 1, that they are determined and each time compared the intensities of the two-band slgnálfl. whereupon when the same temperature of the object is detected, it is the existence of a gray emitter and the actual temperature of the object. 5. A method according to claim 1, that the computer of the pyrometric device compensates for the effects of the temperature of the body in conjunction with the auxiliary radiator, which serves to determine the temperature of the object and to automatically calibrate the pyrometer device. 6. A method according to claim 1, with a pyrometric device. which is sensitive in some spectral regions. the selection of spectral regions is carried out by prefixing a filter, or prisms, or a diffraction monochromator, or a radiation detector in a single channel, or a radiation detector that is selective in some spectral regions using sodium (Na), cadmium (Cd) and tellurium (Te) layers, through which it receives both the radiation of the object being measured and the radiation from the auxiliary radiator which is reflected from it. 7. Fit by &amp; characterized by. that, in addition, individual band signals are indicated. or their corresponding radiation temperatures, and are then corrected by the building element to a selected sensitivity which alternates between the nonsrometric device.