Masu lissafin Thermistor na NTC (XIXITRONICS)

Lissafin darajar B ko Zafin jiki ta amfani da Steinhart-Hart Equation

Mai Kalkuleta na Ƙimar B

Juriya a T1 (Ω):

Zafin jiki T1 (°C):

Juriya a T2 (Ω):

Zafin jiki T2 (°C):

Ƙimar B za ta bayyana a nan

Kalkuleta na Steinhart-Hart

Juriyar da aka auna (Ω):

Ma'aunin A:

Ma'aunin B:

Mai daidaita C:

Zafin jiki zai bayyana a nan

Game da Masu Kula da Ma'aikatan NTC

Ma'aunin zafi mai kyau na NTC (Negative Temperature Coefficient) su ne na'urori masu auna zafin jiki waɗanda juriyarsu ke raguwa yayin da zafin jiki ke ƙaruwa.

Tsarin Ƙimar B

Ƙimar B tana bayyana alaƙar da ke tsakanin juriya da zafin jiki:

B = [ln(R₁/R₂)] / [(1/T₁) - (1/T₂)]

Inda zafin jiki dole ne ya kasance a Kelvin (K = °C + 273.15)

Daidaito na Steinhart-Hart

Tsarin da ya fi dacewa don canza juriya zuwa zafin jiki:

1/T = A + B·ln(R) + C·[ln(R)]³

Inda T yake a cikin Kelvin, R shine juriya a cikin ohms, kuma A, B, C sune ma'auni na musamman ga thermistor.

Hanyar ƙimar B tana amfani da samfurin da aka sauƙaƙe wanda ke ɗaukar ƙimar B mai ɗorewa a cikin kewayon zafin jiki. Lissafin Steinhart-Hart yana ba da daidaito mafi girma ta hanyar amfani da ma'auni uku waɗanda ke lissafin halayen da ba na layi ba.

Kayan aiki