NTC Thermistor Calculators ( XIXITRONICS )

Tātaihia te uara-B, te Pawera ranei ma te whakamahi i te Wharite Steinhart-Hart

B-Uara Tatau

Ka puta te uara-B i konei

Steinhart-Hart Calculator

Ka puta te pāmahana i konei

Mō NTC Thermistors

Ko te NTC (Negative Temperature Coefficient) nga weariki he pūoko pāmahana ka heke te ātete i te pikinga o te pāmahana.

Tātai Uara-B

Ko te uara-B e whakaatu ana i te hononga i waenga i te parenga me te pāmahana:

B = [ln(R₁/R₂)] / [(1/T₁) - (1/T₂)]

Me noho te mahana ki Kelvin (K = °C + 273.15)

Whakataurite Steinhart-Hart

He tauira tika ake mo te huri i te parenga ki te pāmahana:

1/T = A + B·ln(R) + C·[ln(R)]³

Ko te T kei roto i te Kelvin, ko te R he parenga i roto i te ohms, ko A, B, C he taunga taurite ki te waiariki.

Ko te tikanga uara-B e whakamahi ana i tetahi tauira ngawari e mau ana he uara-B tonu puta noa i te awhe pāmahana. Ko te whārite Steinhart-Hart e whakarato ana i te tika teitei ake ma te whakamahi i nga whakarea e toru e whakaatu ana mo te whanonga kore-raina.