Helu helu B - Hefei XIXI Electronics Co., Ltd.

Heluhelu B-Waiwai

Kū'ē ma T1 (Ω):

Mahana T1 (°C):

Kū'ē ma T2 (Ω):

Mahana T2 (°C):

E hōʻike ʻia ka waiwai B ma aneʻi

Heluhelu Steinhart-Hart

Ana 'ana i ke kū'ē (Ω):

Coefficient A:

Coefficient B:

Coefficient C:

E ʻike ʻia ka mahana ma ʻaneʻi

No NTC Thermistors

ʻO nā thermistors NTC (Negative Temperature Coefficient) he mau mea ʻike wela ka emi ʻana o ke kū'ē ʻana i ka piʻi ʻana o ka mahana.

Huahelu B-Waiwai

Hōʻike ka waiwai B i ka pilina ma waena o ke kū'ē a me ka mahana:

B = [ln(R₁/R₂)] / [(1/T₁) - (1/T₂)]

Ma kahi o Kelvin (K = °C + 273.15)

Hoʻohālikelike Steinhart-Hart

ʻO kahi kumu hoʻohālike pololei no ka hoʻololi ʻana i ke kū'ē i ka mahana:

1/T = A + B·ln(R) + C·[ln(R)]³

Aia ʻo T ma Kelvin, ʻo R ke kūʻē i nā ohms, a ʻo A, B, C nā helu helu kikoʻī i ka thermistor.

Hoʻohana ke ʻano B-waiwai i kahi kumu hoʻohālike maʻalahi e manaʻo ana i ka waiwai B mau ma waena o ka pae wela. Hāʻawi ka hoʻohālikelike Steinhart-Hart i ka pololei kiʻekiʻe ma o ka hoʻohana ʻana i ʻekolu coefficient e hōʻike ana i ka hana laina ʻole.