Kuj thermometers: hauj lwm partings thiab kev ua yuam kev

Tus pas ntsuas kub - ib tug ntaus ntawv uas yog tsim los ntsuas qhov kub thiab txias. Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm hais tias ntaus ntawv yog ua nyob rau hauv lub qhov hluav taws xob kuj ntawm hlau thiab alloys xaiv. Cov ntsiab keeb ntawm thermal bandgap semiconductors. Ib cov kws txawj hu rau lawv thermistors.

Yog hais tias peb xav txog cov txheej txheem thermocouple, ces nws tsuas muaj tib resistor. Nws yog tsim nkaus ntawm hlau hlau. Nyob rau hauv tej rooj plaub, nws yuav ua ib zaj duab xis. Platinum thermocouples yog tam sim no suav hais tias yog feem ntau. Qhov no yog vim lub fact tias cov hlau muaj zoo kuj tiv tiag kub. Tsis tas li ntawd, platinum muaj siab oxidation kuj. Reproducibility ntawm thermal converters ntawm no hom qhia kuj muaj.

Tam sim no cov qauv uas ua los ntawm siab purity platinum. Nyob rau hauv cov ntaub ntawv no, qhov kub thiab txias coefficient ntawm cov hlau yog ntawm ib theem ntawm 0,003. Txawm li cas los, lub lag luam muaj ib tug ntau ntawm tooj liab thiab npib tsib xee kiag li lawm. Tag nrho cov specifications yog dictated rau lawv los ntawm GOST. Lub zaus, lub system ntawm kev ntsuas uniformity ua kub yog hom twg, yog cov neeg kawm ntawv thiab cov txheej txheem resistors dependence.

Ob-hlau hloov kho

Rau cov lag luam nyob rau hauv ib tug gaseous nruab nrab siv ib ob-hlau RTD. Tsav nws ntaus ntawv yog heev yooj yim. Nyob rau hauv sab qaum kev ib yog ib tug tsoov caij nrog tus neeg xyuas pib. Nws txuas nrog ib tug txiv mis. Tom qab ntawm cov ntaub ntawv muaj clamps thiab cable. Cov kev ua yuam kev nyob rau hauv lub sub-zero kub nyob rau hauv tus qauv yog tsis ntau tshaj li 0.3 degrees.

Kam GOST 6651 xws hloov pom tau hais tias series A. Yog hais tias PT100 thermocouple, kuj, qhov chaw kawm qhov tsawg kawg nkaus kub ntawm lub ntaus ntawv dag nyob rau hauv lub cheeb tsam ntawm -60 degrees. Yog hais tias peb tham txog cov tsim nta ntawm cov qauv, nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias lawv yog ua los ntawm silicone. Lus xaus, raws li ib tug txoj cai, muaj yog ob tug. Clips yog ntsia ncaj qha nyob rau hauv pem hauv ntej ntawm lub cev.

Peb-hlau thermocouples

Peb-hlau resistive kub yog zoo meej rau cov kua nruab nrab. Txawm li cas los, qhov chaw kawm qhov tsawg kawg nkaus kub ntawm cov qauv nyob rau hauv nruab nrab sib npaug zos rau -30 degrees. Nws tseem ceeb heev kom nco ntsoov hais tias cov kev ua yuam kev nyob rau hauv hostile ib puag ncig yuav ua tau mus 0,45 degrees. Lus xaus nyob rau hauv pab kiag li lawm no yam, muaj yog ob tug. Direct nkag nyob rau hauv raws li GOST 6651 Serie index muaj ib tug tsawg kawg nkaus pub kub yog nyob ib ncig ntawm 230 degrees.

Yog hais tias peb xav txog tus kuj thermocouple TC 1088, nws zaum kawg installation ntev yog 100 hli. Yog hais tias peb tham txog kev hloov kho mus rau lub davhlau ya nyob twg lub taub hau, ces lawv muaj peb xaiv. Tiv fittings siv nrog cov 12X npav. Thermal inertia yuav ua tau mus txog rau 10 vib nas this. Nyob rau hauv lem, qhov chaw ntawm lub siab tshaj plaws nominal siab sib npaug zos rau ib tug nruab nrab ntawm 6.2 Eng. Verification of thermal kuj yog ua los ntawm txoj kev kub calibrators.

plaub-hlau pab kiag li lawm

Plaub-thermal converter resistances tsim rau kub ntsuas nyob rau hauv lub kua nruab nrab. Yog hais tias peb tham txog tus kuj muaj qhov yuam kev, qhov no parameter muaj peev xwm mus cuag tau rau 0.03 ohms. Nyob rau hauv rooj plaub no tus rhiab heev yog nyob rau nruab nrab 33 microns. Yog hais tias peb tham txog kev hloov kho mus rau ib tug kam A, qhov tsawg kawg nkaus kub uas lawv yuav tau mus ua hauj lwm - 30 degrees hauv qab no zero. Nominal zoo li qub yam ntxwv ntawm pab kiag li lawm txog li 100 MB. Tiv fittings nyob rau hauv ntau cov kev hloov ntaub ntawv rau lub 12X npav.

Yog hais tias peb xav txog qhov thermocouple kuj TTP 105, lub siab tshaj plaws tus nqi kub yog 230 degrees. Lub permissible sib txawv txwv sib npaug zos rau tsis pub ntau tshaj 0.15 T. Nws tseem yog ib qho tseem ceeb yuav tau nco ntsoov hais tias qhov no hom ntawm pab kiag li lawm yog muaj nyob nrog davhlau ya nyob twg taub hau. Rho tawm ntawm lawv xwb thov tej hub. Nyob rau hauv rooj plaub no tus clips yog ntsia tau rau hauv pem hauv ntej ntawm lub vaj tse. Yog hais tias peb tham txog rhiab heev, nws yog nyob rau hauv cov pab kiag li lawm ib tug tshaj plaws ntawm 32 microns.

platinum kev hloov kho

Platinum RTD (RTSC) muaj peev xwm khav tau zoo heev qhia ntawm thermal inertia. Txawm li cas los, nyob rau hauv cov ntaub ntawv no, nws yog ib qho tseem ceeb coj mus rau hauv tus account lub siab tev taus ntawm cov qauv nyob rau hauv raws li GOST 6651. Yog hais tias peb xav txog cov kev hloov kho ntawm series A, nyob rau hauv qhov teeb meem no rau hauv lub me me zoo li qub yam ntxwv ntawm lub pab kiag li lawm tsis pub tshaj 50 P. Thermal inertia nyob rau hauv lem yog 10 vib nas this.

Maximum kub RTD (platinum), series A, muaj peev xwm sawv ntawm Identify 240 degrees. Tiv haum tus qauv yog feem ntau siv nrog cov 12X npav. Yog hais tias peb xav txog ib tug kam Series RTD (GOST 6651), nws muaj ib tug me me zoo li qub yam ntxwv parameter sib npaug 100 P. Thermal inertia nyob rau hauv lem yog 25 vib nas this.

Tooj kiag li lawm thiab lawv cov chaw

RTD (tooj liab) yog tsuas haum rau lub gaseous medium. Lub parameter hloov ntawm kev ua yuam kev yog heev txawv. Tus thawj tshaj plaws yuav tau xav txog thermocouples nrog ib tug siab tev taus ntawm Serie A. Lawv siv txawm nyob rau hauv -50 degrees. Txawm li cas los, qhov rhiab heev lawv yuav tsis zoo. Qhov no parameter yog ib tug nruab nrab ntawm tsis muaj ntau tshaj li 34 microns. Tag nrho cov no qhia tau hais tias thaum ib tug kub hauv qab no 0 degrees nyob rau hauv qhov nruab nrab kev ua yuam kev yog sib npaug zos rau 0.5 degrees.

Thermal inertia nyob rau hauv lem los mus rau 10 s. Nyob rau hauv cov ntaub ntawv no, lub siab tshaj plaws tau kub rau cov qauv sib npaug 230 degrees. Cov kev txwv hloov li los txog rau 0,12 T. Yog hais tias peb tham txog cov tsim nta, lub davhlau ya nyob twg ntawm lub taub hau ntawm no hom tsis muaj qauv. Lub sealant siv nyob rau hauv ntau configurations nrog rau cov hmoov. Ncaj qha insulators nquag siv xws li silicon. Yog hais tias peb xav txog ib tug siab tev taus ntawm thermocouples nyob rau hauv series, lawv muaj ib tug rhiab heev ntawm 40 microns. Tag nrho cov no qhia tau hais tias thaum ib tug kub hauv qab no 0 degrees raug yuav ncav cuag mus 0,45 degrees.

Xav tus tsim nta ntawm lub modifications, nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias muaj ntau cov qauv yog nruab nrog davhlau ya nyob twg thawv. Nyob rau hauv cov ntaub ntawv no, lub sealant yog thov nrog ib tug hmoov txheem. Clips yog ntsia ncaj qha nyob rau hauv pem hauv ntej ntawm lub cev. Cov kev tiv thaiv qhov cuab lub zog yog feem ntau siv nrog cov 15X npav.

npib tsib xee tsev

Ni thermocouple, kuj niaj hnub no yog npaum li cas nyob rau hauv coob. Qhov no yog feem ntau vim lub fact tias cov qauv ntawm tus nqi uas siab pridelnyh permissible hloov. Tsis tas li ntawd, muaj ntau yam kev hloov kho yuav khav zoo heev conductivity. Yog hais tias peb xav txog lub ntaus ntawv nrog ib tug kam raws li GOST 6651, series A, nws yog ib qho tseem ceeb hais tias cov parameter kev ua yuam kev lawv tsis pub tshaj 0,23 degrees. Cov kev txwv hloov, nyob rau hauv lem, yog nyob rau theem ntawm 0,12 T.

Nominal zoo li qub yam ntxwv qauv nyob rau hauv nruab nrab yog 30 P. Txawm li cas los, nws yog ib qhov tseem ceeb heev yuav tau xav txog cov hloov ntawm kev nkag tau Series B. Corps lawv muaj kev tiv thaiv thiab lawv txwv cov kub yog nyob rau hauv 230 degrees. Qhov ntev ntawm lub mounting ntawm cov qauv muaj ib tug nruab nrab ntawm tsis muaj ntau tshaj li 100 hli. Yog hais tias peb tham txog cov yooj yim tsis, nws yog ib qho tseem ceeb hais tias rhiab heev ntawm lub twj paj nruag nyob rau hauv ib tug nruab nrab ntawm 35 microns. Qhov siab tshaj plaws nominal siab system tswj ntawm 6.6 Eng. Lub parameter ntawm thermal inertia yog tsis ntau tshaj li 13 vib nas this.

High-kub ua qauv

High kub thermocouple, kuj yuav manufactured nrog txawv tolerances. Nyob ntawm seb nws yuav hloov lub parameter uas tsis, thiab lwm yam ntaus ntawv tsis. Yog hais tias peb tham txog kev nkag mus rau Serie A, lub thermocouples ntawm no hom muaj lub siab nominal siab. Min pab kiag li lawm yuav siv tau rau ib tug kub ntawm -30 degrees. Housing nyob rau hauv cov pab kiag li lawm yog zoo tiv thaiv los ntawm hmoov av. Cov nyiaj pub them tsis pub tshaj ntawm kev ntsuas kev ua yuam kev yog tsawg tshaj li 0,12 T. rhiab heev nyob rau hauv lem sib npaug 33 microns.

Lub nominal zoo li qub yam ntxwv ntawm kub transducers 40 P. Txawm li cas los, nws yog ib qhov tseem ceeb heev yuav tau xav txog cov hloov ntawm kev nkag tau Series B. Raws li GOST 6651 index ntawm rhiab heev lawv yuam ua hauj lwm tsawg kawg sib npaug zos rau 20 microns. Thaum kub saum toj no 0 degrees qhia kev ntsuas kev ua yuam kev yog tsawg tshaj li 0,44 degrees.

Yog hais tias peb tham txog cov tsim nta ntawm cov qauv, cov terminals lawv ntsia tau rau hauv pem hauv ntej ntawm lub chassis. Lub taub hau nyob ncaj qha saum toj no lub ntaus ntawv. Nyob rau hauv tag nrho, muaj ob cov lus xaus. Nws tseem ceeb heev rau hais tias qhov no hom thermocouples yog nruab nrog tej hub rwb thaiv tsev.

Nta submersible kev hloov kho

Immersion thermocouple compulsorily nruab nrog ib tug davhlau ya nyob twg box. cable neeg xyuas pib nyob rau hauv ntau cov qauv hides lub plhaub. Lub clamps nyob rau hauv cov ntaub ntawv no cov txheej txheem ntawm nyob rau hauv lub qis vaj tse nyob. Ncaj qha tsis muaj cov khoom yuav zoo hais txog ib tug series ntawm qhua Access 6651. Txawm li cas los, nws yuav tsum tau muab sau tseg tam sim ntawd hais tias cov immersion thermocouple yuav siv tau nyob rau hauv hnyav tej kev kawm. Yog hais tias peb xav txog cov kev hloov kho ntawm ib tug siab tev taus ntawm Serie A, qhov rhiab heev ntawm lub ntaus ntawv nyob rau hauv cov ntaub ntawv no yog tsawg tshaj li 42 microns. Cov kev ua yuam kev nyob rau hauv cov ntaub ntawv no yog sib npaug zos rau 0,02 degrees. Txawm li cas los, nws yog ib qho tseem ceeb los ua tim nyob rau hauv lub siab hais tias tus nqi ntawm thermal inertia yuav tsis ntau tshaj 10 vib nas this.

Nominal zoo li qub yam ntxwv submersible ntaus ntawv 50 raws li GOST P 6651. Tag nrho cov lus xaus hais tias muaj ob tug kub sensors. Nws tseem ceeb heev yuav tau xav txog ib tug qauv uas muaj kev nkag tau mus Series B. Tus thawj noteworthy siab rhiab heev qhov chaw - nyob rau theem ntawm 30 microns. Tag nrho cov no ua rau nws tau txo qhov yuam kev ntawm lub twj paj nruag rau 0,023 degrees. Qhov siab tshaj plaws kub ntawm qhov nruab nrab nyob rau hauv cov ntaub ntawv no yuav tsum tsis pub tshaj 240 degrees. Qhov ntev ntawm lub mounting ntawm cov qauv muaj ib tug nruab nrab ntawm 85 hli. Ncaj qha kev tiv thaiv fittings siv nrog 12X lub cim. thermal inertia lub sij hawm ntawd qhia thermocouples tsis pub tshaj 3 vib nas this.

Tawg-pov thawj cov qauv

Tus ntsuas kev kub ntawm no hom no yog tsim los ua hauj lwm nyob rau hauv ib tug gaseous ib puag ncig. Nyob rau hauv cov ntaub ntawv no, lub davhlau ya nyob twg taub hau yog siv nrog lub union. Maximum kub ntawm lub pab kiag li lawm muaj peev xwm ntawm tiv ntawm 250 degrees. Thermal inertia yog zoo txuam nrog ib tug series ntawm kev nkag tau kiag li lawm. Txawm li cas los, nws yog ib qho tseem ceeb kom nco ntsoov tias tag nrho cov qauv ntawm cov nyiaj pab ntau tshaj nominal siab yog khaws cia ntawm ib theem ntawm 6.7 Eng. Yog hais tias peb xav txog li nrog kev nkag tau mus Serie A, nws yog ib qho tseem ceeb hais tias qhov yuam kev ntawm ib tug kub saum toj no 0 degrees yog sib npaug zos rau 0,035 degrees.

Terminal lub taub hau teeb cov ntaub ntawv teev nyob rau hauv lub qaum feem ntawm lub vaj tse. Ncaj qha mus rau nominal zoo li qub yam ntxwv ntawm thermocouples tsis pub dhau 60 P. Lub txwv standoff nruab nrab ntawm 0,20 T. Nws tseem ceeb heev yuav tau xav txog thermocouples nkag Series B. xaus lawv muaj peb. Ncaj qha thov rwb thaiv tsev tej hub hom. Raws li hais ua ntej lawm, lub siab tshaj plaws nominal siab yog khaws cia ntawm ib theem ntawm 6.7 Eng. qauv yuav tsum ua ntawm ib tug tsawg kawg nkaus kub ntawm -30 degrees.

Ntaus rhiab heev yog tsawg tshaj li 40 microns. Raug ntawm ib tug kub saum toj no 0 degrees yog kwv yees li 0,040 degrees. Nominal zoo li qub yam ntxwv ntawm tus dais no yog 40 P. Lub mounting ntawm cov qauv muaj tsis muaj ntau tshaj li 80 mm. Lub parameter ntawm thermal inertia nyob rau hauv lub pab kiag li lawm yog heev siab heev. Txawm li cas los, lub permissible txwv sib txawv sib npaug xwb 0,33 T.

TSP-0196-01 Raug

Thermocouples PMT 0196-01 kuj rau cov kua. Kam rau ua raws li GOST 6651, nws muaj series B. Qhov tsawg kawg nkaus ambient kub yog sib npaug zos rau -35 degrees. Nominal zoo li qub yam ntxwv ntawm tus dais no yog tsawg tshaj li 50 P. Yog hais tias peb xav txog cov kev hloov kho nrog davhlau ya nyob twg thawv, qhov ntev ntawm lub mounting ib feem muaj sib npaug zos 85 hli. Kev pab tiv thaiv haum rau cov qauv ntaub ntawv rau cov 13X npav. Qhov taw qhia kev ntsuas thermal inertia yog nyob 15. Nyob rau hauv lem qhia nyiaj pab ntau tshaj kub yog 240 degrees.

Cov nyiaj pub txwv hloov nyob rau hauv nruab nrab tsis muaj ntau tshaj li 0.15 T ntawm ib tug kub saum toj no 0 degrees thermocouple, RTD kuj yuam kev 0196-01 muab 0,033 degrees. Configuration los ntawm cov davhlau ya nyob twg box yog txawm peem rau nrog peb terminals. Nyob rau hauv cov ntaub ntawv no, lub sensor caij yog nyob rau hauv pem hauv ntej ntawm lub vaj tse. Rwb thaiv tsev yog muab ncaj qha los ntawm lub chaw tsim tshuaj paus ntawm lub tej hub hom. Lub sealant yog nyob rau hauv lem thov mus rau cov hmoov. Yog li, lub rooj plaub yog heev kev tiv thaiv, thiab hlau oxidation nyob rau hauv cov qauv no, teeb meem yog tsis tshua muaj.

Model sci-0196-02

Sci 0196-02 RTD yog tsim rau cov lag luam nyob rau hauv nruab nrab lub kua. Nws txawv zoo conductivity, thiab siab tshaj plaws kub chaw. Ua ntej, txawm li cas los, nws yuav tsum tau muab sau tseg tias kam raws li GOST 6651, nws muaj ntau ntau ntawm A. Nyob rau hauv cov ntaub ntawv no, lub Performance index yog sib npaug zos rau qhov tsawg kawg nkaus kub -50 degrees.

Rau laboratory kev tshawb fawb xa Piv txwv yog siv ntau heev. Thaum kub saum toj no 0 degrees nws sib npaug qhov yuam kev tsis ntau tshaj li 0,045 degrees. Lub nominal zoo li qub yam ntxwv ntawm tus dais no yog kwv yees li 55 P. Lub mounting ib feem nyob rau hauv cov qauv no yog sib npaug zos rau 85 hli. Ncaj qha kev tiv thaiv fittings siv nrog cov 12X npav.

Parameter nyiaj pab ntau tshaj kub yog nyob ib ncig ntawm 250 degrees. Hlws ris lub thawv nyob rau hauv lub saum toj no configuration yog tsis tuaj kawm ntawv. Ob tug cov lus xaus chaw tsim tshuaj paus muab. Teeb meem tshwm sim los ntawm cov oxidation ntawm cov hlau yog heev tsawg, vim sealing yog siv nrog rau cov hmoov. Rwb thaiv tsev nyob rau hauv cov ntaub ntawv no, muaj ib tug txhim khu kev qha.

Thermocouple, RTD-0196-06

Tus ntsuas kev kub ntawm no hom yog heev nrov nyob rau hauv lub chaw ua khoom ntawm fusible hlau. Nyob rau hauv cov ntaub ntawv no, tus tiv thaiv haum yog muab 15X. Direct nkag nyob rau hauv raws li GOST 6651 qauv muaj ib tug series B. Qhov tsawg kawg nkaus ambient kub yog sib npaug zos rau -30 degrees. Tshwj xeeb mloog yog muab ib tug high rhiab heev qhov chaw. Txawm li cas los, nws yuav tsum tau muab sau tseg tias nyob rau hauv ib tug kub saum toj no 0 degrees thermocouple kev ua yuam kev yog sib npaug zos rau 0,022 degrees.

Qhov ntev ntawm lub mounting feem ntawm tus qauv no tsuas yog 60 mm. Thermal inertia yog nyob ib ncig ntawm 12 s. Qhov siab tshaj plaws permissible kub ntawm qhov nruab nrab nyob rau hauv uas tus ntaus ntawv yuav siv sib npaug 240 degrees. Terminal lub taub hau nyob rau hauv no thermocouple yog muab.