Cov thermocouples yog cov cuab yeej ntsuas kub tseem ceeb hauv ntau yam lag luam. Ntawm ntau hom, platinum-rhodium thermocouples sawv tawm rau lawv qhov kev ua haujlwm kub siab thiab raug. Tsab xov xwm no yuav nkag mus rau hauv cov ntsiab lus ntawm platinum-rhodium thermocouples, suav nrog lawv siv, cov hlau thermocouple zoo tshaj plaws, thiab cov khoom sib xyaw ntawm S-hom thermocouples.
Cov hom thermocouples platinum-rhodium yog dab tsi?
Muaj peb hom tseem ceeb ntawmplatinum-rhodium thermocouplesHom B, hom R, thiab hom S. Cov thermocouples no paub txog lawv qhov kev ruaj khov kub thiab feem ntau siv rau hauv cov ntawv thov uas xav tau kev ntsuas kub kom raug.
1. Hom B (Platinum 30% Rhodium/Platinum 6% Rhodium): Qhov kub thiab txias: 0°C txog 1700°C, Nta: Hom B thermocouples ruaj khov heev thiab tuaj yeem ntsuas qhov kub thiab txias heev. Feem ntau siv rau hauv cov cub tawg kub thiab cov cub tawg.
2. Hom R (Platinum 13% Rhodium/Platinum): Qhov kub thiab txias: -50°C txog 1600°C, Nta: Hom R thermocouples muaj qhov sib npaug zoo ntawm tus nqi thiab kev ua tau zoo. Lawv siv rau ntau yam kev siv hauv kev lag luam suav nrog kev tsim iav thiab kev ua hlau.
3. Hom S (Platinum 10% Rhodium/Platinum): Qhov kub thiab txias: -50°C txog 1600°C, Nta: Hom S thermocouples paub txog lawv qhov tseeb thiab ruaj khov. Lawv feem ntau siv hauv chaw soj nstuam thiab hauv kev lag luam uas kev tswj qhov kub thiab txias yog qhov tseem ceeb.
Cov xov hlau thermocouple zoo tshaj plaws yog dab tsi?
Lub hom phiaj tseem ceeb rau kev txiav txim siab qhov zoo ntawm cov khoom yog nws qhov zoo. Cov khoom sib txawv muaj cov qauv zoo sib txawv, thiab qhov zoo ntawm platinum-rhodium thermocouple hlau tuaj yeem txiav txim siab los ntawm plaub yam khoom hauv qab no. Ua ntej, platinum-rhodium hlau muaj kev ruaj khov kub siab thiab tuaj yeem tiv taus qhov kub siab heev yam tsis muaj kev puas tsuaj. Qhov kev ruaj khov no ua kom muaj kev ntsuas kub raug ntawm ntau qhov kub thiab txias. Qhov thib ob, platinum-rhodium thermocouples muab kev ntsuas kub raug, ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau kev raug cai. Tsis tas li ntawd, platinum thiab rhodium kuj muaj kev tiv thaiv corrosion siab, ua kom lub neej kev pabcuam thiab kev ntseeg siab ntawm thermocouple hlau hauv qhov chaw nyuaj. Lub zog ntawm platinum-rhodium thermocouple hlau ua rau nws tsim nyog rau kev siv mus sij hawm ntev hauv kev siv hauv kev lag luam, txo qhov xav tau hloov pauv ntau zaus. Yog tias qhov yuav tsum tau ua rau kev ntsuas raug, kev ruaj khov, kev tiv thaiv oxidation, thiab lwm yam yog siab heev, platinum-rhodium thermocouple hlau yog qhov kev xaiv zoo tshaj plaws.
Kev siv platinum thermocouple hlau yog dab tsi?
Platinum thermocouple hlauyog ib qho tseem ceeb hauv kev tsim cov platinum-rhodium thermocouples. Nws cov khoom tshwj xeeb ua rau platinum-rhodium thermocouple hlau haum rau ntau yam kev siv kub siab. Hauv kev lag luam aerospace, platinum thermocouple hlau yog siv los ntsuas qhov kub ntawm cov cav dav hlau thiab lwm yam khoom kub siab. Kev ntsuas kub raug yog qhov tseem ceeb rau kev nyab xeeb thiab kev ua tau zoo ntawm cov khoom siv aerospace. Platinum thermocouple hlau yog siv rau hauv cov cub tawg kev lag luam los saib xyuas thiab tswj qhov kub siab. Lawv qhov ruaj khov thiab qhov tseeb ua kom lub cub tawg ua haujlwm hauv qhov kub uas xav tau, yog li txhim kho kev ua haujlwm thiab cov khoom zoo. Tsis tas li ntawd, cov txheej txheem tsim iav xav tau kev tswj kub kom raug, thiab platinum thermocouple hlau yog siv los saib xyuas qhov kub ntawm cov cub tawg iav kom ntseeg tau tias muaj kev tsim iav zoo thiab ruaj khov. Hauv kev tshawb fawb, kev ntsuas kub raug yog qhov tseem ceeb rau kev sim thiab kev sau cov ntaub ntawv. Platinum thermocouple hlau yog siv los ntsuas qhov kub hauv ntau yam kev sim hauv chav kuaj, muab cov ntaub ntawv txhim khu kev qha thiab raug.
Cov thermocouples Platinum-rhodium (xws li hom B, R, thiab S) yog cov cuab yeej tseem ceeb rau kev ntsuas qhov kub thiab txias kom raug hauv cov ntawv thov kub siab. Thaum xaiv cov hlau thermocouple zoo tshaj plaws, platinum-rhodium thermocouples feem ntau yog thawj qhov kev xaiv vim tias lawv ua haujlwm tau zoo hauv cov chaw ib puag ncig hnyav. Platinum-rhodium thermocouples ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, muab qhov tseeb thiab ruaj khov uas xav tau rau cov ntawv thov kub siab.
Lub sijhawm tshaj tawm: Cuaj hlis-20-2024
