Ma Calculator a NTC Thermistor (XIXITRONICS)
Werengerani B-value kapena Temperature pogwiritsa ntchito Steinhart-Hart Equation
Chowerengera cha B-Value
Mtengo wa B udzawonekera apa
Chowerengera cha Steinhart-Hart
Kutentha kudzaonekera apa
Zokhudza NTC Thermistors
Ma thermistors a NTC (Negative Temperature Coefficient) ndi masensa otentha omwe kukana kwawo kumachepa pamene kutentha kukukwera.
Fomula ya B-Value
Mtengo wa B umasonyeza ubale pakati pa kukana ndi kutentha:
B = [ln(R₁/R₂)] / [(1/T₁) - (1/T₂)]
Kumene kutentha kuyenera kukhala mu Kelvin (K = °C + 273.15)
Chiyerekezo cha Steinhart-Hart
Chitsanzo cholondola kwambiri chosinthira kukana kutentha:
1/T = A + B·ln(R) + C·[ln(R)]³
Pamene T ili mu Kelvin, R ndi kukana mu ohms, ndipo A, B, C ndi ma coefficients enieni a thermistor.
Njira ya B-value imagwiritsa ntchito chitsanzo chosavuta chomwe chimatenga B-value yosasintha pa kutentha konse. Equation ya Steinhart-Hart imapereka kulondola kwakukulu pogwiritsa ntchito ma coefficient atatu omwe amawerengera khalidwe losakhala la mzere.
