Dab tsi yog qhov ntsuas kub?
Cov kev tswj kom kub muaj ntau lub npe, xws li kev tswj qhov kub thiab txias, ntsuas kub thiab ntsuas kub. Raws li tus ua haujlwm ua haujlwm, nws tuaj yeem faib ua kev dhia hom ntsuas cua sov, ua kua ntaus Sovtat thiab tshuab hluav taws xob ntaus kub. Hauv cov khoom muaj kev lag luam niaj hnub, cov cua sov cov cua sov yog cov hom siv feem ntau. Raws li cov qauv, cov tswj hwm kub tuaj yeem muab faib ua ke thiab cov ntsuas kub modular.
Dab tsi yog qhov ntsuas kub?
Qhov ntsuas kub ntsuas lub cev yog cov khoom siv uas hloov kho qhov ntsuas hluav taws xob mus rau hauv lub cim hluav taws xob, thiab feem ntau yog nruab ib feem ntawm kev tswj hwm tus nqi los saib xyuas nws tus nqi kub. Nyob rau hauv teb ntawm kev tswj hwm kev lag luam, feem ntau siv cov ntsuas kub xws li cov thermoceters xws li thermooples, thermal resistors, cov cua sov thiab cov sensors tsis yog. Ntawm lawv, thawj peb yog kis tus pas ntsuas kub.
1. Thermocouple
Lub hauv paus ntsiab lus ntawm kev ntsuas cua sov rau kev ntsuas thermoco yog raws li cov nyhuv pom (thermoelectric effect). Thaum ob co co ntawm cov khoom sib txawv (feem ntau yog tus saib xyuas lossis cov khoom siv platinum, Nickel-sidic-sids, Nickel-sillicures yog tsim los ntawm ob qho hlau. Xws li lub voj yog hu ua "thermocouple," Thaum ob cov hlau tau hu ua "thermal electrode," thiab lub resulting zog quab yuam yog hu ua "thermoelectric siab zog quab yuam." Thermocouples yog tus cwj pwm los ntawm lawv qhov ntsuas kub thiab txias ntau, cov lus teb kub ceev, thiab muaj zog kev co ua haujlwm.
2. Thermal Kuj
Thermal yuav yog ib qho sib xyaw uas hloov tau ib qho ntsuas hluav taws xob, thiab nws ua haujlwm ntawm cov yam ntxwv ntawm cov hlau tiv thaiv kev ntsuas kub. Tshwj xeeb, thermal resistors coj kom zoo ntawm cov cuab yeej ntawm cov hlau los ntsuas kub.
Hauv kev tswj kev lag luam, feem ntau siv hom thermal kuj suav nrog platinum, tooj liab thiab npib tsib xee. Ntawm lawv, Platinum tsis kam yog qhov feem ntau ib. Lub thermal kuj muaj cov yam ntxwv ntawm kev kub kub, ruaj khov kev ua tau thiab siab precision nyob hauv thaj teb ntawm qhov kub ib txwm. Yog li ntawd, nyob rau hauv daim ntawv thov ib puag ncig ntawm kev ntsuas kub, tsis muaj kev yuav tsum tau ua kom muaj nuj nqis thiab kev siv platinum tsis yog feem ntau nyiam.
3. Tus Tub Ntxaij
Tus thermistor yog cov khoom sib xyaw ua ke uas hloov chaw ntsuas hluav taws xob tsuas yog ua rau cov cim hluav taws xob feem ntau yog hloov pauv ntawm tus semiconductor hloov pauv nrog kub. Tshwj xeeb, tus ntsuas cua sov coj kom zoo ntawm cov cuab yeej ntawm cov semiconductors los ntsuas qhov kub. Piv nrog cov thermal kuj, qhov tsis kam ntawm cov thermistor hloov zoo heev nrog kev hloov ntawm kub, yog li nws ntsuas kub yog qhov nqaim (-50 ~ 350 ℃).
Tus cua kub tau muab faib ua NTC cov cua nab kuab thiab PTC cov cua nab kuab. NTC tus cua sov muaj qhov kub me coefficient, thiab lawv cov nqi tiv taus tsawg dua li qhov kub nce ntxiv. PTC thermistor muaj qhov kub me me coefficient, thiab nws tus nqi tiv thaiv yuav nce nrog qhov ntsuas kub. Vim tias nws cov cim tsis kam ua cov yam ntxwv kub, coveror muaj ntau cov kev siv hauv cov khoom siv kub, tsis siv neeg tswj khoom siv, cov khoom siv hluav taws xob, tshuab hluav taws xob.
ZHUO Meng Shanghai Pib Co., Ltd. tau cog lus los muag mg & mauxs pib qhov zoo tos txais yuav.
