Lub hauv paus ntsiab lus thiab kev tsim kho ntawm thermocouple

Thermocouples yog ib qho ntawm cov feem ntau siv cov kev kub siab tshaj plaws hauv kev lag luam {{0 qhov zoo yog:

 

1} .} Vim tias Thermocouple yog sib cuag ncaj qha rau cov khoom uas tau kuaj, nws tsis cuam tshuam los ntawm Intermediate Nruab Nrab.

 

2 Kev ntsuas dav ntau .}}℃{4 4} {{+2800℃(xws li tungsten-bismuth) .

 

3 tus qauv yooj yim, siv tau yooj yim . thermocouples feem ntau yog tsim los ntawm qhov loj me thiab tsis muaj qhov yooj yim heev siv .

 

{{01. Cov txheej txheem yooj yim ntawm thermocouple kub ntsuas

 

Cov saib xyuas lossis cov semiconductors A thiab B ntawm ob qho khoom siv sib txawv yog tsim kom muaj qhov sib txawv ntawm ob, thiab muaj qhov sib txawv ntawm lub voj voog ntawm ob qho tib si Ntxim {{4 {}} thermorochles siv cov cuam tshuam no mus ua haujlwm .

 

2.} thermocouple hom thiab cov qauv tsim

 

(1) Hom ntawm Thermocouple

 

Feem ntau siv thermocouples tuaj yeem faib ua ob pawg:} Tus qauv thermocouple {2} Nws muaj cov khoom siv teeb meem uas tau sib xws nrog nws . Tsis muaj qauv yooj yim thermocouples tsis zoo raws li qauv thermocouples nyob rau hauv cov nqe lus, tsis muaj uniflection incentitions hauv qee qhov tshwj xeeb. Txheem thermocouple

 

Txij thaum Lub Ib Hlis 1, 1988, Tuam Tshoj cov khoom siv thermocoile, thiab t (lossis t (lossis ntsuas cov lej hauv ntiaj teb)

 

(2) cov qauv ntawm thermocouple nyob rau hauv thiaj li yuav ntseeg tau thiab ruaj khov ua haujlwm ntawm thermocouple, nws cov qauv tseev muaj yog raws li hauv qab no:

 

1 Lub vuam ntawm ob lub tshuab hluav taws xob kub uas ua rau lub thermocouple yuav tsum yog khov kho;

2 Ob lub tshuab hluav taws kub yuav tsum tau zoo insulated los ntawm ib leeg los tiv thaiv luv luv circuits luv;

3 Kev sib txuas ntawm cov xaim hluav taws xob thiab qhov kawg ntawm lub thermocouple yuav tsum yooj yim thiab ntseeg tau;

4 lub tes tsho tiv thaiv yuav tsum ua kom ntseeg tau tias qhov kub electrode yog qhov tsis txaus cais los ntawm cov teeb meem xov xwm.

 

{{03. kub ntawm kev them nyiaj ntawm kev sib kis txias ntawm cov thermocouple

 

Vim tias cov khoom siv thermocouple feem ntau kim dua (cov khoom siv ntsuas kub), kom txuag tau cov roj ntsha, thiab cov ntsuas kub uas yuav tsum tau ua kom sov li ntawm lub sijhawm Qhov kev them nyiaj xaim hluav taws xob xaim hluav taws xob tsuas yog txuas ntxiv rau qhov ntsuas kub ntawm cov kev tswj hwm qhov kub thiab txias ntsuas .

 

Thaum siv cov khoom them nyiaj xaim hluav taws xob Thermocouple, nws yuav tsum raug sau tseg tias tus qauv yog sib txuas, thiab qhov kub thiab txias ntawm cov xaim hluav taws xob tsis tau ntau dua 100 degree.

 

Piv txwv li: S-hom thermocouple) platinum-iridium 10- platinum thermocouple

 

Platinum rhodium 10- platinum thermococher yog} Kuv muaj kev lom zem rau qhov zoo (SP) yog platinum-rhodium alloy, hauv uas yttrium yog 10%, platinum yog 90%, thiab qhov kev ua tsis zoo elderinume} Qhov kev ua haujlwm ntev ntawm 1600 kev ua haujlwm luv luv ntawm 1600℃C.

 

S-hom thermorochles muaj qhov tseeb tshaj plaws, zoo tshaj plaws ruaj khov, zoo} Nws yog qhov zoo} Kev ua tau zoo thiab ua raws li cov chaw thoob ntiaj teb nrog cov twj paj nruag hauv ntiaj teb no (CTs) tseem siv rau kwv yees qhov kev kub thoob ntiaj teb .

 

The insufficiency of the S-type thermocouple is the thermoelectric potential, the thermoelectric potential rate is small, the sensitivity is low, the mechanical strength at high temperature is lowered, the pollution is very sensitive, and the precious metal material is expensive, so the one-time investment is large.