| 变间隙自感式传感器线性度和量程关系的探讨 |
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| 引用本文： | 潘雪涛,邬佳伟. 变间隙自感式传感器线性度和量程关系的探讨[J]. 电子元件与材料, 2007, 26(2): 27-30 |
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| 作者姓名： | 潘雪涛 邬佳伟 |
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| 作者单位： | 常州工学院测控技术与仪器系,江苏,常州,213002;河海大学常州校区,江苏,常州,213000 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 简要分析了一类非线性传感器的输出特性,在此基础上,运用最佳一致逼近理论,导出了线性度和量程之间的关系式,并进行了实例计算和MATLAB仿真,同时与传统方法所得结果做了比较。结果表明,当输入值相对变化量为0.1时,非线性误差由原来的10%降为1.25%;而当非线性误差给定为1%时,输入的相对变化量由0.01增加为0.08,即量程是原来的8倍。
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| 关 键 词： | 电子技术 传感器 线性度 量程 最佳一致逼近理论 |
| 文章编号： | 1001-2028（2007）02-0027-04 |
| 修稿时间： | 2006-08-16 |
Study on relation between linearity and measuring range of variable-air span self-inductance (capacitance) type sensor |
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| PAN Xue-tao,WU Jia-wei. Study on relation between linearity and measuring range of variable-air span self-inductance (capacitance) type sensor[J]. Electronic Components & Materials, 2007, 26(2): 27-30 |
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| Authors: | PAN Xue-tao WU Jia-wei |
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| Affiliation: | 1. Changzhou Institute of Technology, Changzhou 213002, China; 2. Hohai University, Changzhou 213000, China |
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| Abstract: | The output characteristic of the nonlinear sensor was analyzed simply, The new expression of linearity and measuring range was pushed out based on the best uniform approximation theory. The example calculated and the MATLAB simulation were carded out, It is shows that the nonlinear error is decreased from 10 % to 1.25 % when the input varies is 0.1, at the meantime, the input varies is increased from 0,01 to 0.08 when the nonlinear error is 0,1, and the measuring range can increase 8 times, So the new expression is more reasonable and more precise by compared with the result obtained on the traditional method, The certain guidance is provided for using and designing this class of non-linearity sensor. |
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| Keywords: | electron technology sensor linearity measuring range the best uniform approximation theory |
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