PTC thermistor thiab PT100 thermistor

Cov thermistors siv dav hauv kev ntsuas kub thiab kev tswj hwm cov ntawv thov thoob plaws ntau yam lag luam. Ntawm ntau hom sib txawv ntawmcov thermistors, PTC (Positive Temperature Coefficient) thiab PT100 yog ob hom kev hloov pauv uas siv ntau. Ob hom thermistors siv rau kev ntsuas kub, tab sis lawv muaj cov yam ntxwv thiab kev siv sib txawv. Kev nkag siab txog qhov sib txawv ntawm PTC thiab PT100 thermistors yog qhov tseem ceeb rau kev xaiv lub sensor zoo rau koj cov kev xav tau kub tshwj xeeb.

PTC thermistor:
PTC thermistors yog cov resistors uas rhiab heev rau qhov kub thiab txias nrog tus coefficient kub zoo, uas txhais tau tias lawv qhov kev tiv thaiv nce ntxiv thaum qhov kub thiab txias nce ntxiv. Cov thermistors no yog ua los ntawm cov khoom siv ceramic xws li barium titanate, thiab lawv qhov kev tiv thaiv hloov pauv ntau nrog rau qhov kub thiab txias hloov pauv. PTC thermistors feem ntau siv rau hauv cov ntawv thov uas xav tau kev tiv thaiv kub dhau, kev tswj tus kheej, thiab kev txwv tam sim no.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm PTC thermistors yog lawv cov yam ntxwv tswj tus kheej. Thaum qhov kub nce ntxiv, qhov kev tiv thaiv ntawm PTC thermistor nce ntxiv, ua rau tam sim no txo ​​qis. Tus cwj pwm tswj tus kheej no ua rau PTC thermistors tsim nyog rau cov ntawv thov xws li kev tiv thaiv lub cev muaj zog, cov khoom cua sov, thiab kev tiv thaiv overcurrent hauv cov hluav taws xob circuits.
Lub ntsuas kub ntawm lub tshuab cua sov:
Cov ntsuas kub ntawm cov winding yog siv rau hauv cov khoom siv hluav taws xob los saib xyuas qhov kub ntawm cov windings hauv cov motors, transformers thiab lwm yam khoom siv hluav taws xob. Cov ntsuas no yog qhov tseem ceeb rau kev tiv thaiv kev kub dhau thiab ua kom cov khoom siv ua haujlwm zoo. Cov ntsuas kub ntawm cov winding feem ntau siv PTC thermistors ua cov khoom ntsuas kub vim tias lawv muaj cov yam ntxwv kho tus kheej thiab rhiab heev rau kev hloov pauv kub.
PT100 thermistor:
Lub PT100 yog lub cuab yeej ntsuas kub tsis kam (RTD) siv platinum ua lub ntsiab lus ntsuas. Tsis zoo li PTC thermistors, qhov tsis kam ntawm PT100 thermistors nce linearly nrog qhov kub, ua raws li kev sib raug zoo ntawm kev tsis kam-kub uas tau txhais los ntawm International Electrotechnical Commission (IEC). PT100 thermistors paub txog lawv qhov tseeb siab, ruaj khov thiab ntau yam ntsuas kub, ua rau lawv zoo tagnrho rau kev ntsuas kub raug.
Ib lub PT100 thermistor muaj qhov tsis kam ntawm 100 ohms ntawm 0 ° C thiab nce ntxiv kwv yees li 0.385 ohms rau txhua qib ntawm qhov kub nce. Qhov kev sib raug zoo ntawm qhov tsis kam thiab qhov kub thiab txias no tso cai rau kev ntsuas qhov kub thiab txias raug thiab txhim khu kev qha hla ntau qhov kub thiab txias.
Qhov txawv ntawm PTC thiab PT100:
Qhov sib txawv tseem ceeb ntawm PTC thiab PT100 thermistors yog lawv cov yam ntxwv tsis kam-kub. PTC thermistors qhia txog kev sib raug zoo tsis kam-kub nrog rau qhov ntsuas kub zoo, thaum PT100 thermistors muaj kev sib raug zoo tsis kam-kub nrog rau qhov ntsuas kub ze li xoom.
Lwm qhov txawv tseem ceeb yog cov ntaub ntawv siv hauv nws txoj kev tsim kho. PTC thermistors feem ntau yog ua los ntawm cov khoom siv ceramic, thaum PT100 thermistors siv platinum ua lub ntsiab lus sensing. Kev siv platinum hauv PT100 thermistors pab txhawb rau lawv qhov tseeb thiab ruaj khov, tshwj xeeb tshaj yog nyob rau hauv cov chaw ua haujlwm thiab chaw kuaj mob uas xav tau kev kub ntxhov.
daim ntawv thov:
Cov thermistor PTC siv tau rau kev tiv thaiv kub dhau, cov khoom cua sov uas tswj tus kheej, cov voj voog txwv tam sim no thiab kev tiv thaiv lub cev muaj zog. Lawv tus cwj pwm tswj tus kheej ua rau lawv haum rau cov ntawv thov uas tswj qhov kub thiab tiv thaiv tseem ceeb.
Ntawm qhov tod tes, PT100 thermistors siv dav hauv kev lag luam thiab chaw kuaj mob rau kev ntsuas qhov kub kom raug. Lawv feem ntau siv rau hauv cov txheej txheem saib xyuas qhov kub, cov chav ib puag ncig, HVAC systems, thiab cov ntawv thov kev tshawb fawb uas qhov kev ntsuas kub kom raug thiab ruaj khov yog qhov tseem ceeb.
Hauv kev xaus lus, txawm hais tias ob qho tib si PTC thiab PT100 thermistors siv rau kev ntsuas kub, lawv muaj cov yam ntxwv thiab kev siv sib txawv. PTC thermistors paub txog lawv tus cwj pwm tswj tus kheej thiab feem ntau siv rau hauv cov ntawv thov uas xav tau kev tiv thaiv kub dhau thiab kev txwv tam sim no. PT100 thermistors, ntawm qhov tod tes, muab qhov tseeb thiab ruaj khov, ua rau lawv haum rau kev ntsuas kub kom raug hauv kev lag luam thiab chaw kuaj mob. Kev nkag siab txog qhov sib txawv ntawm cov thermistors no yog qhov tseem ceeb rau kev xaiv lub sensor tsim nyog rau koj cov kev xav tau kub tshwj xeeb.