Taw qhia rau Thermocouples
Puas muaj ib qho thermocouple sojntsuam rau txhua hom kev ntsuas kub muaj?
Yog, muaj thermocouple probes rau yuav luag txhua daim ntawv thov.
Cov kev faib feem ntau yog raws li hauv qab no:
1) Kev ntsuas kub ntawm qhov chaw - kev teeb tsa mus tas li:
(SA, CO, XCIB, WT)
2) Surface Temperature Measurement - Portable Probes:
(88000 series sojntsuam)
3) Kev ntsuas kub ua kua - kev txhim kho mus tas li;
(TJ, Quick Release, NB1)
4) Kev ntsuas kub ua kua lossis ib nrab-khoom ntsuas - portable:
(TJ, Quick Release, HPS)
5) Gas los yog lub tshuab nqus tsev ntsuas kub - kub hauv qab no
1093 degree (2000 degree F):
6) Gas los yog lub tshuab nqus tsev ntsuas kub - kub saum toj no
1093 degree (2000 degree F):
(kev sojntsuam tshwj xeeb)
7) Kev ntsuas kub ntawm lub teeb lossis cov khoom me me;
(unjacketed lossis subminiature)
8) Siv qhov ntev sojntsuam los ntsuas qhov kub ntawm lub cub tawg:
(XCIB, PP)
9) Kev ntsuas kub ntawm casting pwm, pwm thiab platen:
(extrusion sojntsuam)
10) Profile sojntsuam uas tuaj yeem paub qhov kub thiab txias
11) Sensors customized rau cov neeg siv khoom tshwj xeeb
Dab tsi yog qhov thermocouple? Cov thermocouples ua haujlwm li cas?
Ua ntej xaiv lub thermocouple, peb yuav tsum teb cov lus nug nram qab no.
1) Qhov kub ntawm qhov koj xav ntsuas yog dab tsi thiab qhov ntsuas kub ntawm qhov kub thiab txias yog dab tsi?
2) Koj yuav ntsuas qhov khoom kub li cas? Thawj lo lus nug yuav pab koj faib koj daim ntawv thov.
3) Kev ntsuas qhov chaw yuav cuam tshuam li cas rau hom thermocouple kuv siv? Ua ntej txhim kho qhov xaiv tau thermocouple, xyuas kom nws ua tau raws li cov hauv qab no:
a) Tsim nyog qhov kub thiab txias
b) Thermocouple lossis sheath khoom (rau sheathed probes) chemically resistant
Thermocouple Classification
Saib nplooj ntawv tus phooj ywg tshuab luam ntawv
Taw qhia rau Thermocouples
Puas muaj ib qho thermocouple sojntsuam rau txhua hom kev ntsuas kub muaj?
Yog, muaj thermocouple probes rau yuav luag txhua daim ntawv thov.
Cov kev faib feem ntau yog raws li hauv qab no:
1) Kev ntsuas kub ntawm qhov chaw - kev teeb tsa mus tas li:
(SA, CO, XCIB, WT)
2) Surface Temperature Measurement - Portable Probes:
(88000 series sojntsuam)
3) Kev ntsuas kub ua kua - kev txhim kho mus tas li;
(TJ, Quick Release, NB1)
4) Kev ntsuas kub ua kua lossis ib nrab-khoom ntsuas - portable:
(TJ, Quick Release, HPS)
5) Gas los yog lub tshuab nqus tsev ntsuas kub - kub hauv qab no
1093 degree (2000 degree F):
6) Gas los yog lub tshuab nqus tsev ntsuas kub - kub saum toj no
1093 degree (2000 degree F):
(kev sojntsuam tshwj xeeb)
7) Kev ntsuas kub ntawm lub teeb lossis cov khoom me me;
(unjacketed lossis subminiature)
8) Siv qhov ntev sojntsuam los ntsuas qhov kub ntawm lub cub tawg:
(XCIB, PP)
9) Kev ntsuas kub ntawm casting pwm, pwm thiab platen:
(extrusion sojntsuam)
10) Profile sojntsuam uas tuaj yeem paub qhov kub thiab txias
11) Sensors customized rau cov neeg siv khoom tshwj xeeb
Dab tsi yog qhov thermocouple? Cov thermocouples ua haujlwm li cas?
Ua ntej xaiv lub thermocouple, peb yuav tsum teb cov lus nug nram qab no.
1) Qhov kub ntawm qhov koj xav ntsuas yog dab tsi thiab qhov ntsuas kub ntawm qhov kub thiab txias yog dab tsi?
2) Koj yuav ntsuas qhov khoom kub li cas? Thawj lo lus nug yuav pab koj faib koj daim ntawv thov.
3) Kev ntsuas qhov chaw yuav cuam tshuam li cas rau hom thermocouple kuv siv? Ua ntej txhim kho qhov xaiv tau thermocouple, xyuas kom nws ua tau raws li cov hauv qab no:
a) Tsim nyog qhov kub thiab txias
b) Thermocouple lossis sheath khoom (rau sheathed probes) chemically resistant
c) Ua kom zoo hauv av yog tias tsim nyog (ntau cov cuab yeej muaj teeb meem hauv av thaum siv nrog cov khoom siv hauv av sheathed)
d) hnav-resistant
e) Kev tiv thaiv kev vibration
f) kev immersion
Dab tsi yog hom thermocouple sib txawv?
Txhua hom thermocouple muaj ntau hom thermocouple lossis sib txawv ntawm cov hlau sib txawv. Feem ntau hom yog raws li nram no:
Hom J (Iron-Constantan) Hom K (CHROMEGA™-ALOMEGA™)
Hom T (Copper-Constantan) Hom E (CHROMEGA™-Constantan)
Hom N (OMEGALLOY™ P thiab N)c) Ua kom zoo hauv av yog tias tsim nyog (ntau cov twj paj nruag muaj teeb meem hauv av thaum siv nrog cov khoom siv hauv av sheathed)
d) hnav-resistant
e) Kev tiv thaiv kev vibration
f) kev immersion
Dab tsi yog hom thermocouple sib txawv?
Txhua hom thermocouple muaj ntau hom thermocouple lossis sib txawv ntawm cov hlau sib txawv. Feem ntau hom yog raws li nram no:
Hom J (Iron-Constantan) Hom K (CHROMEGA™-ALOMEGA™)
Hom T (Copper-Constantan) Hom E (CHROMEGA™-Constantan)
Hom N (OMEGALLOY™ P thiab N)
Type ua | 6 hli (1⁄4 ") txoj kab uas hla kev sojntsuam thiab 18 AWG thermocouple hlau | 4.8 hli (3⁄16 ") txoj kab uas hla thiab 20 AWG thermocouple hlau | 3 hli (1⁄8 ") txoj kab uas hla kev sojntsuam thiab 24 AWG thermocouple hlau | 1.6 hli (1⁄16 ") txoj kab uas hla thiab 30 AWG thermocouple hlau |
J | 648 degree (1200 degree F) | 648 degree (1200 degree F) | 648 degree (1200 degree F) | 593 degree (1100 degree F) |
K/N | 1093 degree (2000 degree F) | 1093 degree (2000 degree F) | 1093 degree (2000 degree F) | 982 degree (1800 degree F) |
T | 371 degree (700 degree F) | 371 degree (700 degree F) | 371 degree (700 degree F) | 204 degree (400 degree F) |
E | 982 degree (1800 degree F) | 648 degree (1200 degree F) | 648 degree (1200 degree F) |
Kuj tseem muaj qhov kub siab heev thermocouples uas tuaj yeem ntsuas kub txog 2300 degree (4200 degree F). Tom qab txiav txim siab txog hom kev thov thiab cov qauv kev sojntsuam cuam tshuam, nws yog ib qho tseem ceeb uas yuav tsum tau kuaj xyuas thiab xaiv cov qauv sojntsuam uas ua tau raws li qhov yuav tsum tau ua hauv cov lus teb saum toj no. Nco ntsoov: Nws yog ib qho tseem ceeb uas qhov kev ntsuas qhov ntsuas kub ua haujlwm yog tsim los ntawm cov khoom uas ntsuas kub kom zoo thiab tiv taus qhov chaw uas lawv raug.
Dab tsi yog qhov nthuav tawm, hauv av thiab tsis muaj kev sib cuag?
Hom kev sib tshuam yog lwm txoj hauv kev faib cov thermocouples. Thermocouples nrog cov junctions raug siv dav siv rau kev ntsuas roj kub qhov twg lub sij hawm teb ceev heev yuav tsum tau. Yog tias lub sijhawm teb ntawm ob peb vib nas this tau txais, qhov kev sojntsuam hauv av nrog lub taub me me yuav txaus. Ntxiv nrog rau cov kev txwv ib puag ncig saum toj no, cov kev sib txuas sib txuas yuav tsum tau ua kom tau raws li qhov ntsuas kub qis dua rau cov kab me me ntawm cov thermocouple hlau.
Transition junction probe for immersion measurements Saib www.omega.com/tjc36
Ib qho kev sojntsuam thermocouple tsis muaj av lossis qhov ntsuas qhov ntsuas kub nrog qhov sib txuas tsis sib haum yog ib qho kev sojntsuam uas muaj hluav taws xob sib cais ntawm qhov ntsuas ntsuas thiab lub plhaub (feem ntau stainless hlau lossis Inconel). Qhov kev sojntsuam no muaj txiaj ntsig zoo heev thaum ntsuas hauv cov ntawv thov uas muaj suab nrov hauv hluav taws xob. Lub sheath tej zaum yuav muaj hluav taws xob hauv av, muab txoj hauv kev uas tsis muaj impedance rau cov suab nrov hluav taws xob mus ncig, ua kom kev ntsuas txhim khu kev qha thiab raug. Ungrounded probes yuav muaj lub sij hawm teb ntev me ntsis, tab sis qhov sib txawv no me me piv rau cov kev sib tshuam thiab cov kev sib txuas hauv av nrog cov kab me me xws li 1.6 hli (1⁄16 "). , uas muaj ob qhov zoo ntawm lub sij hawm teb luv luv thiab kev tiv thaiv ntawm lub kaw lus kaw.
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