Cov Tshuab Xam Ntsuas NTC Thermistor (XIXITRONICS)

Xam tus nqi B lossis Kub siv Steinhart-Hart Equation

B-Tus Nqi Xam

Kev tsis kam ntawm T1 (Ω):

Kub T1 (°C):

Kev tsis kam ntawm T2 (Ω):

Kub T2 (°C):

Tus nqi B yuav tshwm sim ntawm no

Lub Tshuab Xam Xaj Steinhart-Hart

Kev Ntsuas Kev Tiv Thaiv (Ω):

Tus lej A:

Tus lej B:

Tus lej C:

Kub yuav tshwm sim ntawm no

Txog NTC Thermistors

Cov thermistors NTC (Negative Temperature Coefficient) yog cov sensors kub uas lawv qhov kev tiv thaiv txo qis thaum kub nce.

Tus Qauv B-Tus Nqi

Tus nqi B piav qhia txog kev sib raug zoo ntawm kev tiv taus thiab kub:

B = [ln(R₁/R₂)] / [(1/T₁) - (1/T₂)]

Qhov twg qhov kub yuav tsum yog hauv Kelvin (K = °C + 273.15)

Kev Sib Npaug Steinhart-Hart

Ib qho qauv tseeb dua rau kev hloov pauv qhov tsis kam rau qhov kub thiab txias:

1/T = A + B·ln(R) + C·[ln(R)]³

Qhov twg T yog nyob rau hauv Kelvin, R yog tsis kam hauv ohms, thiab A, B, C yog cov coefficients tshwj xeeb rau lub thermistor.

Txoj kev ntsuas B-nqi siv tus qauv yooj yim uas xav tias muaj tus nqi B tas mus li thoob plaws qhov kub thiab txias. Tus qauv Steinhart-Hart muab qhov tseeb dua los ntawm kev siv peb tus coefficients uas suav nrog tus cwj pwm tsis yog kab.

Cov cuab yeej