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| 宽温范围测量时NTC热敏电阻器R/T数学模型 | |
| 引用本文： | 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(6): 53-55 |
| 作者姓名： | 李兵尚 施建礼 吴非 李冠军 |
| 作者单位： | 1. 海军潜艇学院 三系,山东 青岛,266042 2. 海军驻沈阳军事代表室,辽宁 沈阳,110045 3. 东海舰队19分队,浙江 宁波,315122 |
| 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。 |
| 关 键 词： | 宽温范围 NTC热敏电阻器 R/T 数学模型 |
R/T mathematic model of NTC thermistor for wide-temperature-range measuring |
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| LI Bing-shang , SHI Jian-li , WU Fei , LI Guan-jun. R/T mathematic model of NTC thermistor for wide-temperature-range measuring[J]. Transducer and Microsystem Technology, 2012, 31(6): 53-55 | |
| Authors: | LI Bing-shang SHI Jian-li WU Fei LI Guan-jun |
| Affiliation: | 1.The 3rd Department,Naval Submarine Academy,Qingdao 266042,China; 2.Naval Representative Office,Shenyang 110045,China; 3.The 19th Troop,East Naval,Ningbo 315122,China) |
| 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. |
| Keywords: | wide-temperature-range NTC thermistor R/T mathematic model |
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