R/T mathematic model of NTC thermistor for wide-temperature-range measuring

LI Bing-shang1; SHI Jian-li1; WU Fei2; LI Guan-jun3

doi:10.13873/j.1000-97872012.06.015

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R/T mathematic model of NTC thermistor for wide-temperature-range measuring

更新时间：2025-09-11

- R/T mathematic model of NTC thermistor for wide-temperature-range measuring
- Vol. 31, Issue 6, Pages: 53-55(2012)
- 作者机构：
  
  1. 海军潜艇学院三系
  2. 海军驻沈阳军事代表室
  3. 东海舰队19分队
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.06.015
  CLC： TM54
- Published：2012
- 稿件说明：
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[1]李兵尚,施建礼,吴非,李冠军.宽温范围测量时NTC热敏电阻器R/T数学模型[J].传感器与微系统,2012,31(06):53-55.

LI Bing-shang1, SHI Jian-li1, WU Fei2, et al. R/T mathematic model of NTC thermistor for wide-temperature-range measuring[J]. 2012, 31(6): 53-55.
[1]李兵尚,施建礼,吴非,李冠军.宽温范围测量时NTC热敏电阻器R/T数学模型[J].传感器与微系统,2012,31(06):53-55. DOI： 10.13873/j.1000-97872012.06.015.

LI Bing-shang1, SHI Jian-li1, WU Fei2, et al. R/T mathematic model of NTC thermistor for wide-temperature-range measuring[J]. 2012, 31(6): 53-55. DOI： 10.13873/j.1000-97872012.06.015.

摘要

NTC型热敏电阻器使用寿命长

具有很高的灵敏度

进行宽温度范围测量而又要求较高的精度时

R/T的非线性数学模型难以描述。基于最小二乘法的多项式逼近原理

以LNTT502FW热敏电阻器为实例

分段拟合出传感器在（-20～80℃）使用环境下的数学模型

拟和数据相对误差较小

能满足测量要求。

Abstract

NTC thermistor has long life and high sensitivity.When wide-temperature-range measuring with high precision

it is hard to be described by the nonlinear mathematic model of R/T.Based on the principles of polynomical approximation of least square method

a piecewise fitting mathematic model of thermistor LNTT502FW is approached.And it meets the measurement requirements well with small relative data-fitting error.

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references

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仓库温湿度监测与nRF905无线传输系统的设计 [J]. 刘庆赟,焦斌亮,刘永富. 传感器与微系统 . 2011(05)

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纳米气体传感器灵敏度-温度曲线的拟合 [J]. 刘海燕,简弃非. 华南理工大学学报(自然科学版) . 2004(06)

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Related Institution

School of Instrument Science and Opto-electronics Engineering,Beijing University of Aeronautics and Astronautics

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The 49th Research Institute,China Electronics Technology Group Corporation

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