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| 减小噪声干扰的热敏电阻传感器动态测量误差补偿 | |
| 引用本文： | 刘清. 减小噪声干扰的热敏电阻传感器动态测量误差补偿[J]. 计量学报, 2005, 26(2): 111-114 |
| 作者姓名： | 刘清 |
| 作者单位： | 南京师范大学计算机科学系,江苏,南京,210042 |
| 基金项目： | 国家自然科学基金(60202012) |
| 摘 要： | 为了补偿热敏电阻的动态测量误差，可在传感器的输出端串接一个动态补偿环节。该环节本质上是一个带通或高通滤波器，补偿环节的增加将引起严重的噪声放大，影响测量系统的精度。研究了在噪声环境下，改善热敏电阻传感器的动态特性的方法，该方法在采用实验数据得到补偿环节系数的同时，采用多项式预测滤波和中值滤波相结合的方法减小测量系统的噪声。仿真实验验证了该方法的有效性。 |
| 关 键 词： | 计量学 热敏电阻 动态测量误差 噪声 补偿 |
| 文章编号： | 1000-1158(2005)02-0111-04 |
| 修稿时间： | 2003-10-11 |
Dynamic Measurement Error Compensating of Thermistor with Reducing Noise Disturbance |
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| LIU Qing. Dynamic Measurement Error Compensating of Thermistor with Reducing Noise Disturbance[J]. Acta Metrologica Sinica, 2005, 26(2): 111-114 | |
| Authors: | LIU Qing |
| Abstract: | In order to compensating thermistor dynamic measurement error, a dynamic compensation block is employed. The block is a band-pass filter or a high-pass filter in essence, thereby the block causes severe noise amplification, and the accuracy of measurement system is infected. The thermistor dynamic measurement error compensating with reducing noise disturbance is studied. The coefficient of the block is obtained via experimental data, at the same time a method that combines polynomial prediction filter and median filter for the noise attenuation is introduced. The simulation results show that the dynamic compensation method is valid. |
| Keywords: | Metrology Thermistor Dynamic measurement error Noise Compensation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |